./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/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_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/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_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/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 f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:43:11,428 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:43:11,546 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:43:11,555 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:43:11,556 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:43:11,596 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:43:11,597 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:43:11,597 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:43:11,598 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:43:11,603 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:43:11,604 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:43:11,605 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:43:11,605 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:43:11,607 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:43:11,607 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:43:11,608 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:43:11,608 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:43:11,608 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:43:11,609 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:43:11,609 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:43:11,610 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:43:11,610 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:43:11,611 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:43:11,612 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:43:11,613 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:43:11,613 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:43:11,614 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:43:11,614 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:43:11,615 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:43:11,615 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:43:11,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:43:11,617 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:43:11,617 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:43:11,617 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:43:11,617 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:43:11,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:43:11,618 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:43:11,618 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:43:11,618 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:43:11,619 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:43:11,619 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:43:11,619 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_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af [2023-11-06 22:43:11,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:43:11,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:43:11,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:43:11,985 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:43:11,985 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:43:11,987 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2023-11-06 22:43:15,170 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:43:15,529 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:43:15,531 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2023-11-06 22:43:15,559 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/data/7eb88546c/8affbf1d7e3e40a6aec3a66df727a282/FLAG34a460e39 [2023-11-06 22:43:15,578 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/data/7eb88546c/8affbf1d7e3e40a6aec3a66df727a282 [2023-11-06 22:43:15,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:43:15,586 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:43:15,590 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:43:15,590 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:43:15,595 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:43:15,596 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:43:15" (1/1) ... [2023-11-06 22:43:15,597 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d76a018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:15, skipping insertion in model container [2023-11-06 22:43:15,597 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:43:15" (1/1) ... [2023-11-06 22:43:15,658 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:43:16,201 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-06 22:43:16,201 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-06 22:43:16,202 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-06 22:43:16,203 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-06 22:43:16,252 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:43:16,273 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:43:16,314 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-06 22:43:16,315 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-06 22:43:16,315 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-06 22:43:16,316 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-06 22:43:16,350 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:43:16,473 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:43:16,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:16 WrapperNode [2023-11-06 22:43:16,474 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:43:16,475 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:43:16,475 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:43:16,475 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:43:16,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:16" (1/1) ... [2023-11-06 22:43:16,534 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:16" (1/1) ... [2023-11-06 22:43:16,570 INFO L138 Inliner]: procedures = 278, calls = 65, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 343 [2023-11-06 22:43:16,571 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:43:16,572 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:43:16,572 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:43:16,572 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:43:16,582 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:16" (1/1) ... [2023-11-06 22:43:16,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:16" (1/1) ... [2023-11-06 22:43:16,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:16" (1/1) ... [2023-11-06 22:43:16,591 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:16" (1/1) ... [2023-11-06 22:43:16,607 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:16" (1/1) ... [2023-11-06 22:43:16,617 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:16" (1/1) ... [2023-11-06 22:43:16,620 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:16" (1/1) ... [2023-11-06 22:43:16,623 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:16" (1/1) ... [2023-11-06 22:43:16,629 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:43:16,630 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:43:16,630 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:43:16,631 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:43:16,632 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:16" (1/1) ... [2023-11-06 22:43:16,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:43:16,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:43:16,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:43:16,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:43:16,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:43:16,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:43:16,732 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-11-06 22:43:16,733 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-11-06 22:43:16,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:43:16,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:43:16,735 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-06 22:43:16,735 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-06 22:43:16,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:43:16,735 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 22:43:16,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:43:16,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:43:16,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:43:16,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:43:16,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:43:16,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:43:16,740 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:43:17,011 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:43:17,021 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:43:17,719 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:43:17,733 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:43:17,734 INFO L302 CfgBuilder]: Removed 30 assume(true) statements. [2023-11-06 22:43:17,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:43:17 BoogieIcfgContainer [2023-11-06 22:43:17,737 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:43:17,739 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:43:17,740 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:43:17,743 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:43:17,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:43:15" (1/3) ... [2023-11-06 22:43:17,744 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3419e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:43:17, skipping insertion in model container [2023-11-06 22:43:17,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:16" (2/3) ... [2023-11-06 22:43:17,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3419e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:43:17, skipping insertion in model container [2023-11-06 22:43:17,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:43:17" (3/3) ... [2023-11-06 22:43:17,747 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2023-11-06 22:43:17,754 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:43:17,763 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:43:17,763 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-06 22:43:17,763 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:43:17,900 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-06 22:43:17,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 345 places, 388 transitions, 796 flow [2023-11-06 22:43:18,257 INFO L124 PetriNetUnfolderBase]: 80/636 cut-off events. [2023-11-06 22:43:18,258 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-06 22:43:18,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 653 conditions, 636 events. 80/636 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3279 event pairs, 0 based on Foata normal form. 0/504 useless extension candidates. Maximal degree in co-relation 323. Up to 8 conditions per place. [2023-11-06 22:43:18,278 INFO L82 GeneralOperation]: Start removeDead. Operand has 345 places, 388 transitions, 796 flow [2023-11-06 22:43:18,298 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 345 places, 388 transitions, 796 flow [2023-11-06 22:43:18,310 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:43:18,325 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 345 places, 388 transitions, 796 flow [2023-11-06 22:43:18,329 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 345 places, 388 transitions, 796 flow [2023-11-06 22:43:18,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 345 places, 388 transitions, 796 flow [2023-11-06 22:43:18,453 INFO L124 PetriNetUnfolderBase]: 80/636 cut-off events. [2023-11-06 22:43:18,454 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-06 22:43:18,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 653 conditions, 636 events. 80/636 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3279 event pairs, 0 based on Foata normal form. 0/504 useless extension candidates. Maximal degree in co-relation 323. Up to 8 conditions per place. [2023-11-06 22:43:18,504 INFO L119 LiptonReduction]: Number of co-enabled transitions 52014 [2023-11-06 22:43:41,561 WARN L293 SmtUtils]: Spent 9.93s on a formula simplification. DAG size of input: 166 DAG size of output: 165 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:43:53,960 WARN L293 SmtUtils]: Spent 10.16s on a formula simplification. DAG size of input: 168 DAG size of output: 167 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:44:09,713 WARN L293 SmtUtils]: Spent 11.87s on a formula simplification. DAG size of input: 165 DAG size of output: 163 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:44:25,211 WARN L293 SmtUtils]: Spent 11.68s on a formula simplification. DAG size of input: 167 DAG size of output: 165 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:44:28,214 INFO L134 LiptonReduction]: Checked pairs total: 81188 [2023-11-06 22:44:28,214 INFO L136 LiptonReduction]: Total number of compositions: 374 [2023-11-06 22:44:28,230 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:44:28,235 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;@5c64585a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:44:28,235 INFO L358 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2023-11-06 22:44:28,240 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:44:28,241 INFO L124 PetriNetUnfolderBase]: 2/7 cut-off events. [2023-11-06 22:44:28,241 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:44:28,241 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:28,242 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:44:28,242 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:44:28,247 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:28,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1578932, now seen corresponding path program 1 times [2023-11-06 22:44:28,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:28,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799199091] [2023-11-06 22:44:28,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:28,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:28,376 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:44:28,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [297102418] [2023-11-06 22:44:28,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:28,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:44:28,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:44:28,387 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:44:28,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:44:28,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:28,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:44:28,543 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:44:28,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:44:28,576 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:44:28,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:28,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799199091] [2023-11-06 22:44:28,577 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:44:28,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297102418] [2023-11-06 22:44:28,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297102418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:28,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:28,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:44:28,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609821004] [2023-11-06 22:44:28,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:28,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:44:28,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:28,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:44:28,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:44:28,661 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 762 [2023-11-06 22:44:28,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 120 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 337.0) internal successors, (1011), 3 states have internal predecessors, (1011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:28,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:44:28,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 762 [2023-11-06 22:44:28,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:44:31,531 INFO L124 PetriNetUnfolderBase]: 11890/18606 cut-off events. [2023-11-06 22:44:31,531 INFO L125 PetriNetUnfolderBase]: For 277/277 co-relation queries the response was YES. [2023-11-06 22:44:31,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36258 conditions, 18606 events. 11890/18606 cut-off events. For 277/277 co-relation queries the response was YES. Maximal size of possible extension queue 639. Compared 122856 event pairs, 10318 based on Foata normal form. 1472/12920 useless extension candidates. Maximal degree in co-relation 34503. Up to 17498 conditions per place. [2023-11-06 22:44:31,785 INFO L140 encePairwiseOnDemand]: 730/762 looper letters, 85 selfloop transitions, 3 changer transitions 0/100 dead transitions. [2023-11-06 22:44:31,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 100 transitions, 396 flow [2023-11-06 22:44:31,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:44:31,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:44:31,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1126 transitions. [2023-11-06 22:44:31,835 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4925634295713036 [2023-11-06 22:44:31,836 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1126 transitions. [2023-11-06 22:44:31,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1126 transitions. [2023-11-06 22:44:31,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:44:31,843 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1126 transitions. [2023-11-06 22:44:31,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 375.3333333333333) internal successors, (1126), 3 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:31,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 762.0) internal successors, (3048), 4 states have internal predecessors, (3048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:31,885 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 762.0) internal successors, (3048), 4 states have internal predecessors, (3048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:31,887 INFO L175 Difference]: Start difference. First operand has 92 places, 120 transitions, 260 flow. Second operand 3 states and 1126 transitions. [2023-11-06 22:44:31,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 100 transitions, 396 flow [2023-11-06 22:44:31,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 100 transitions, 396 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:44:31,899 INFO L231 Difference]: Finished difference. Result has 93 places, 98 transitions, 242 flow [2023-11-06 22:44:31,901 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=762, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=93, PETRI_TRANSITIONS=98} [2023-11-06 22:44:31,905 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 1 predicate places. [2023-11-06 22:44:31,906 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 98 transitions, 242 flow [2023-11-06 22:44:31,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 337.0) internal successors, (1011), 3 states have internal predecessors, (1011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:31,907 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:31,908 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:44:31,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:44:32,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-06 22:44:32,115 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:44:32,116 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:32,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1579218, now seen corresponding path program 1 times [2023-11-06 22:44:32,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:32,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609333392] [2023-11-06 22:44:32,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:32,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:32,173 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:44:32,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [742826723] [2023-11-06 22:44:32,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:32,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:44:32,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:44:32,175 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:44:32,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:44:32,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:32,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:44:32,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:44:32,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:44:32,359 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:44:32,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:32,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609333392] [2023-11-06 22:44:32,361 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:44:32,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742826723] [2023-11-06 22:44:32,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742826723] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:32,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:32,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:44:32,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075610340] [2023-11-06 22:44:32,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:32,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:44:32,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:32,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:44:32,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:44:32,424 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 762 [2023-11-06 22:44:32,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 98 transitions, 242 flow. Second operand has 3 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:32,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:44:32,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 762 [2023-11-06 22:44:32,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:44:34,827 INFO L124 PetriNetUnfolderBase]: 11889/18604 cut-off events. [2023-11-06 22:44:34,827 INFO L125 PetriNetUnfolderBase]: For 279/279 co-relation queries the response was YES. [2023-11-06 22:44:34,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36266 conditions, 18604 events. 11889/18604 cut-off events. For 279/279 co-relation queries the response was YES. Maximal size of possible extension queue 639. Compared 122834 event pairs, 10318 based on Foata normal form. 2/11453 useless extension candidates. Maximal degree in co-relation 36248. Up to 17495 conditions per place. [2023-11-06 22:44:34,961 INFO L140 encePairwiseOnDemand]: 757/762 looper letters, 79 selfloop transitions, 5 changer transitions 0/96 dead transitions. [2023-11-06 22:44:34,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 96 transitions, 400 flow [2023-11-06 22:44:34,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:44:34,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:44:34,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1098 transitions. [2023-11-06 22:44:34,967 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48031496062992124 [2023-11-06 22:44:34,967 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1098 transitions. [2023-11-06 22:44:34,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1098 transitions. [2023-11-06 22:44:34,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:44:34,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1098 transitions. [2023-11-06 22:44:34,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 366.0) internal successors, (1098), 3 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:34,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 762.0) internal successors, (3048), 4 states have internal predecessors, (3048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:34,986 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 762.0) internal successors, (3048), 4 states have internal predecessors, (3048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:34,986 INFO L175 Difference]: Start difference. First operand has 93 places, 98 transitions, 242 flow. Second operand 3 states and 1098 transitions. [2023-11-06 22:44:34,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 96 transitions, 400 flow [2023-11-06 22:44:34,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 96 transitions, 396 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:44:34,994 INFO L231 Difference]: Finished difference. Result has 92 places, 96 transitions, 238 flow [2023-11-06 22:44:34,994 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=762, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=92, PETRI_TRANSITIONS=96} [2023-11-06 22:44:34,995 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 0 predicate places. [2023-11-06 22:44:34,996 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 96 transitions, 238 flow [2023-11-06 22:44:34,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:34,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:34,997 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1] [2023-11-06 22:44:35,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:44:35,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:44:35,205 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:44:35,205 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:35,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1517643143, now seen corresponding path program 1 times [2023-11-06 22:44:35,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:35,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899588563] [2023-11-06 22:44:35,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:35,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:35,419 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:44:35,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:35,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899588563] [2023-11-06 22:44:35,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899588563] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:35,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:35,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:44:35,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889677953] [2023-11-06 22:44:35,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:35,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:44:35,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:35,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:44:35,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:44:35,452 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 762 [2023-11-06 22:44:35,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 96 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 337.6666666666667) internal successors, (1013), 3 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:35,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:44:35,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 762 [2023-11-06 22:44:35,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:44:37,611 INFO L124 PetriNetUnfolderBase]: 11889/18606 cut-off events. [2023-11-06 22:44:37,611 INFO L125 PetriNetUnfolderBase]: For 279/279 co-relation queries the response was YES. [2023-11-06 22:44:37,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36274 conditions, 18606 events. 11889/18606 cut-off events. For 279/279 co-relation queries the response was YES. Maximal size of possible extension queue 639. Compared 122907 event pairs, 10318 based on Foata normal form. 3/11457 useless extension candidates. Maximal degree in co-relation 36229. Up to 17501 conditions per place. [2023-11-06 22:44:37,715 INFO L140 encePairwiseOnDemand]: 755/762 looper letters, 83 selfloop transitions, 2 changer transitions 0/97 dead transitions. [2023-11-06 22:44:37,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 97 transitions, 410 flow [2023-11-06 22:44:37,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:44:37,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:44:37,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1097 transitions. [2023-11-06 22:44:37,720 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4798775153105862 [2023-11-06 22:44:37,720 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1097 transitions. [2023-11-06 22:44:37,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1097 transitions. [2023-11-06 22:44:37,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:44:37,721 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1097 transitions. [2023-11-06 22:44:37,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 365.6666666666667) internal successors, (1097), 3 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:37,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 762.0) internal successors, (3048), 4 states have internal predecessors, (3048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:37,733 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 762.0) internal successors, (3048), 4 states have internal predecessors, (3048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:37,734 INFO L175 Difference]: Start difference. First operand has 92 places, 96 transitions, 238 flow. Second operand 3 states and 1097 transitions. [2023-11-06 22:44:37,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 97 transitions, 410 flow [2023-11-06 22:44:37,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 97 transitions, 400 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:44:37,742 INFO L231 Difference]: Finished difference. Result has 93 places, 97 transitions, 250 flow [2023-11-06 22:44:37,743 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=762, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=93, PETRI_TRANSITIONS=97} [2023-11-06 22:44:37,745 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 1 predicate places. [2023-11-06 22:44:37,745 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 97 transitions, 250 flow [2023-11-06 22:44:37,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 337.6666666666667) internal successors, (1013), 3 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:37,746 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:37,746 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2023-11-06 22:44:37,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:44:37,747 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:44:37,748 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:37,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1801707618, now seen corresponding path program 1 times [2023-11-06 22:44:37,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:37,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451193609] [2023-11-06 22:44:37,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:37,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:37,829 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:44:37,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [698984434] [2023-11-06 22:44:37,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:37,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:44:37,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:44:37,835 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:44:37,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:44:38,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:38,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:44:38,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:44:38,086 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:44:38,087 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:44:38,107 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:44:38,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:38,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451193609] [2023-11-06 22:44:38,108 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:44:38,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698984434] [2023-11-06 22:44:38,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698984434] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:44:38,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:44:38,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-11-06 22:44:38,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792048467] [2023-11-06 22:44:38,109 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:44:38,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:44:38,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:38,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:44:38,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:44:38,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 762 [2023-11-06 22:44:38,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 97 transitions, 250 flow. Second operand has 6 states, 6 states have (on average 338.6666666666667) internal successors, (2032), 6 states have internal predecessors, (2032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:38,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:44:38,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 762 [2023-11-06 22:44:38,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:44:40,747 INFO L124 PetriNetUnfolderBase]: 11891/18618 cut-off events. [2023-11-06 22:44:40,747 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2023-11-06 22:44:40,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36325 conditions, 18618 events. 11891/18618 cut-off events. For 278/278 co-relation queries the response was YES. Maximal size of possible extension queue 639. Compared 122917 event pairs, 10318 based on Foata normal form. 3/11465 useless extension candidates. Maximal degree in co-relation 36245. Up to 17499 conditions per place. [2023-11-06 22:44:40,845 INFO L140 encePairwiseOnDemand]: 755/762 looper letters, 87 selfloop transitions, 7 changer transitions 0/106 dead transitions. [2023-11-06 22:44:40,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 106 transitions, 486 flow [2023-11-06 22:44:40,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:44:40,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:44:40,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2124 transitions. [2023-11-06 22:44:40,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4645669291338583 [2023-11-06 22:44:40,856 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2124 transitions. [2023-11-06 22:44:40,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2124 transitions. [2023-11-06 22:44:40,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:44:40,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2124 transitions. [2023-11-06 22:44:40,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 354.0) internal successors, (2124), 6 states have internal predecessors, (2124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:40,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 762.0) internal successors, (5334), 7 states have internal predecessors, (5334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:40,881 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 762.0) internal successors, (5334), 7 states have internal predecessors, (5334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:40,882 INFO L175 Difference]: Start difference. First operand has 93 places, 97 transitions, 250 flow. Second operand 6 states and 2124 transitions. [2023-11-06 22:44:40,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 106 transitions, 486 flow [2023-11-06 22:44:40,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 106 transitions, 482 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-06 22:44:40,891 INFO L231 Difference]: Finished difference. Result has 101 places, 102 transitions, 326 flow [2023-11-06 22:44:40,891 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=762, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=326, PETRI_PLACES=101, PETRI_TRANSITIONS=102} [2023-11-06 22:44:40,893 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 9 predicate places. [2023-11-06 22:44:40,894 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 102 transitions, 326 flow [2023-11-06 22:44:40,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 338.6666666666667) internal successors, (2032), 6 states have internal predecessors, (2032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:40,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:40,896 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 2, 1, 1, 1] [2023-11-06 22:44:40,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:44:41,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:44:41,102 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:44:41,104 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:41,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1257214297, now seen corresponding path program 2 times [2023-11-06 22:44:41,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:41,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965980566] [2023-11-06 22:44:41,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:41,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:41,227 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:44:41,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1317018526] [2023-11-06 22:44:41,227 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:44:41,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:44:41,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:44:41,230 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:44:41,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:44:41,569 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:44:41,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:44:41,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:44:41,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:44:41,622 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:44:41,622 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:44:41,703 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:44:41,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:41,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965980566] [2023-11-06 22:44:41,703 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:44:41,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317018526] [2023-11-06 22:44:41,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317018526] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:44:41,704 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:44:41,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-06 22:44:41,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046373684] [2023-11-06 22:44:41,704 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:44:41,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:44:41,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:41,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:44:41,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:44:41,850 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 762 [2023-11-06 22:44:41,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 102 transitions, 326 flow. Second operand has 12 states, 12 states have (on average 338.3333333333333) internal successors, (4060), 12 states have internal predecessors, (4060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:41,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:44:41,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 762 [2023-11-06 22:44:41,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:44:44,653 INFO L124 PetriNetUnfolderBase]: 11891/18642 cut-off events. [2023-11-06 22:44:44,653 INFO L125 PetriNetUnfolderBase]: For 369/369 co-relation queries the response was YES. [2023-11-06 22:44:44,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36486 conditions, 18642 events. 11891/18642 cut-off events. For 369/369 co-relation queries the response was YES. Maximal size of possible extension queue 639. Compared 123113 event pairs, 10318 based on Foata normal form. 12/11493 useless extension candidates. Maximal degree in co-relation 36262. Up to 17499 conditions per place. [2023-11-06 22:44:44,758 INFO L140 encePairwiseOnDemand]: 755/762 looper letters, 99 selfloop transitions, 13 changer transitions 0/124 dead transitions. [2023-11-06 22:44:44,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 124 transitions, 738 flow [2023-11-06 22:44:44,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:44:44,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 22:44:44,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4173 transitions. [2023-11-06 22:44:44,781 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45636482939632544 [2023-11-06 22:44:44,781 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4173 transitions. [2023-11-06 22:44:44,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4173 transitions. [2023-11-06 22:44:44,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:44:44,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4173 transitions. [2023-11-06 22:44:44,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 347.75) internal successors, (4173), 12 states have internal predecessors, (4173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:44,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 762.0) internal successors, (9906), 13 states have internal predecessors, (9906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:44,826 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 762.0) internal successors, (9906), 13 states have internal predecessors, (9906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:44,827 INFO L175 Difference]: Start difference. First operand has 101 places, 102 transitions, 326 flow. Second operand 12 states and 4173 transitions. [2023-11-06 22:44:44,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 124 transitions, 738 flow [2023-11-06 22:44:44,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 124 transitions, 736 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:44:44,837 INFO L231 Difference]: Finished difference. Result has 118 places, 110 transitions, 478 flow [2023-11-06 22:44:44,838 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=762, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=478, PETRI_PLACES=118, PETRI_TRANSITIONS=110} [2023-11-06 22:44:44,841 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 26 predicate places. [2023-11-06 22:44:44,842 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 110 transitions, 478 flow [2023-11-06 22:44:44,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 338.3333333333333) internal successors, (4060), 12 states have internal predecessors, (4060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:44,844 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:44,845 INFO L208 CegarLoopForPetriNet]: trace histogram [11, 2, 1, 1, 1] [2023-11-06 22:44:44,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:44:45,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:44:45,052 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:44:45,052 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:45,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1943501625, now seen corresponding path program 3 times [2023-11-06 22:44:45,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:45,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115809712] [2023-11-06 22:44:45,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:45,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:45,388 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:44:45,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [24849053] [2023-11-06 22:44:45,389 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:44:45,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:44:45,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:44:45,399 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:44:45,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:44:45,852 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-06 22:44:45,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:44:45,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:44:45,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:44:45,927 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-06 22:44:45,927 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:44:45,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:45,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115809712] [2023-11-06 22:44:45,930 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:44:45,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24849053] [2023-11-06 22:44:45,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24849053] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:45,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:45,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:44:45,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965490898] [2023-11-06 22:44:45,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:45,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:44:45,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:45,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:44:45,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:44:46,025 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 762 [2023-11-06 22:44:46,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 110 transitions, 478 flow. Second operand has 6 states, 6 states have (on average 333.1666666666667) internal successors, (1999), 6 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:46,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:44:46,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 762 [2023-11-06 22:44:46,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:44:48,495 INFO L124 PetriNetUnfolderBase]: 11880/18617 cut-off events. [2023-11-06 22:44:48,495 INFO L125 PetriNetUnfolderBase]: For 355/355 co-relation queries the response was YES. [2023-11-06 22:44:48,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36477 conditions, 18617 events. 11880/18617 cut-off events. For 355/355 co-relation queries the response was YES. Maximal size of possible extension queue 637. Compared 123027 event pairs, 10318 based on Foata normal form. 0/11479 useless extension candidates. Maximal degree in co-relation 36317. Up to 17490 conditions per place. [2023-11-06 22:44:48,593 INFO L140 encePairwiseOnDemand]: 754/762 looper letters, 99 selfloop transitions, 7 changer transitions 0/118 dead transitions. [2023-11-06 22:44:48,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 118 transitions, 746 flow [2023-11-06 22:44:48,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:44:48,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:44:48,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2079 transitions. [2023-11-06 22:44:48,602 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4547244094488189 [2023-11-06 22:44:48,603 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2079 transitions. [2023-11-06 22:44:48,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2079 transitions. [2023-11-06 22:44:48,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:44:48,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2079 transitions. [2023-11-06 22:44:48,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 346.5) internal successors, (2079), 6 states have internal predecessors, (2079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:48,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 762.0) internal successors, (5334), 7 states have internal predecessors, (5334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:48,621 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 762.0) internal successors, (5334), 7 states have internal predecessors, (5334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:48,621 INFO L175 Difference]: Start difference. First operand has 118 places, 110 transitions, 478 flow. Second operand 6 states and 2079 transitions. [2023-11-06 22:44:48,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 118 transitions, 746 flow [2023-11-06 22:44:48,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 118 transitions, 724 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-11-06 22:44:48,628 INFO L231 Difference]: Finished difference. Result has 119 places, 108 transitions, 445 flow [2023-11-06 22:44:48,628 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=762, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=445, PETRI_PLACES=119, PETRI_TRANSITIONS=108} [2023-11-06 22:44:48,629 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 27 predicate places. [2023-11-06 22:44:48,629 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 108 transitions, 445 flow [2023-11-06 22:44:48,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 333.1666666666667) internal successors, (1999), 6 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:48,631 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:48,631 INFO L208 CegarLoopForPetriNet]: trace histogram [11, 2, 1, 1, 1] [2023-11-06 22:44:48,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:44:48,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-06 22:44:48,838 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:44:48,838 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:48,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1943501722, now seen corresponding path program 1 times [2023-11-06 22:44:48,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:48,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954351186] [2023-11-06 22:44:48,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:48,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:49,035 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:44:49,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [524104800] [2023-11-06 22:44:49,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:49,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:44:49,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:44:49,037 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:44:49,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:44:49,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:49,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 1080 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-06 22:44:49,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:44:49,943 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 23 proven. 55 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:44:49,943 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:44:50,183 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 23 proven. 55 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:44:50,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:50,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954351186] [2023-11-06 22:44:50,184 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:44:50,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524104800] [2023-11-06 22:44:50,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524104800] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:44:50,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:44:50,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2023-11-06 22:44:50,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129799607] [2023-11-06 22:44:50,185 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:44:50,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-06 22:44:50,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:50,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-06 22:44:50,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-06 22:44:50,454 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 762 [2023-11-06 22:44:50,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 108 transitions, 445 flow. Second operand has 24 states, 24 states have (on average 338.1666666666667) internal successors, (8116), 24 states have internal predecessors, (8116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:50,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:44:50,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 762 [2023-11-06 22:44:50,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:44:54,555 INFO L124 PetriNetUnfolderBase]: 11880/18653 cut-off events. [2023-11-06 22:44:54,555 INFO L125 PetriNetUnfolderBase]: For 2055/2055 co-relation queries the response was YES. [2023-11-06 22:44:54,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36655 conditions, 18653 events. 11880/18653 cut-off events. For 2055/2055 co-relation queries the response was YES. Maximal size of possible extension queue 639. Compared 123394 event pairs, 10318 based on Foata normal form. 24/11539 useless extension candidates. Maximal degree in co-relation 36335. Up to 17498 conditions per place. [2023-11-06 22:44:54,674 INFO L140 encePairwiseOnDemand]: 757/762 looper letters, 101 selfloop transitions, 26 changer transitions 0/139 dead transitions. [2023-11-06 22:44:54,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 139 transitions, 998 flow [2023-11-06 22:44:54,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-06 22:44:54,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-06 22:44:54,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 8236 transitions. [2023-11-06 22:44:54,701 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4503499562554681 [2023-11-06 22:44:54,701 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 8236 transitions. [2023-11-06 22:44:54,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 8236 transitions. [2023-11-06 22:44:54,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:44:54,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 8236 transitions. [2023-11-06 22:44:54,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 343.1666666666667) internal successors, (8236), 24 states have internal predecessors, (8236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:54,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 762.0) internal successors, (19050), 25 states have internal predecessors, (19050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:54,762 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 762.0) internal successors, (19050), 25 states have internal predecessors, (19050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:54,763 INFO L175 Difference]: Start difference. First operand has 119 places, 108 transitions, 445 flow. Second operand 24 states and 8236 transitions. [2023-11-06 22:44:54,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 139 transitions, 998 flow [2023-11-06 22:44:54,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 139 transitions, 992 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-06 22:44:54,772 INFO L231 Difference]: Finished difference. Result has 153 places, 121 transitions, 681 flow [2023-11-06 22:44:54,773 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=762, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=681, PETRI_PLACES=153, PETRI_TRANSITIONS=121} [2023-11-06 22:44:54,773 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 61 predicate places. [2023-11-06 22:44:54,774 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 121 transitions, 681 flow [2023-11-06 22:44:54,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 338.1666666666667) internal successors, (8116), 24 states have internal predecessors, (8116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:54,776 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:54,776 INFO L208 CegarLoopForPetriNet]: trace histogram [23, 2, 1, 1, 1] [2023-11-06 22:44:54,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:44:54,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:44:54,985 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:44:54,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:54,985 INFO L85 PathProgramCache]: Analyzing trace with hash -489121958, now seen corresponding path program 2 times [2023-11-06 22:44:54,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:54,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511254091] [2023-11-06 22:44:54,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:54,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:55,527 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:44:55,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [15296753] [2023-11-06 22:44:55,527 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:44:55,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:44:55,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:44:55,529 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:44:55,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 22:44:56,687 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:44:56,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:44:56,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 2136 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-06 22:44:56,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:44:57,082 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 47 proven. 253 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:44:57,082 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:44:57,601 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 47 proven. 253 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:44:57,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:57,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511254091] [2023-11-06 22:44:57,602 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:44:57,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15296753] [2023-11-06 22:44:57,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15296753] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:44:57,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:44:57,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 32 [2023-11-06 22:44:57,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571602188] [2023-11-06 22:44:57,603 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:44:57,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-06 22:44:57,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:57,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-06 22:44:57,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2023-11-06 22:44:57,860 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 762 [2023-11-06 22:44:57,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 121 transitions, 681 flow. Second operand has 32 states, 32 states have (on average 338.15625) internal successors, (10821), 32 states have internal predecessors, (10821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:57,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:44:57,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 762 [2023-11-06 22:44:57,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:45:03,844 INFO L124 PetriNetUnfolderBase]: 11880/18677 cut-off events. [2023-11-06 22:45:03,844 INFO L125 PetriNetUnfolderBase]: For 5212/5212 co-relation queries the response was YES. [2023-11-06 22:45:03,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36940 conditions, 18677 events. 11880/18677 cut-off events. For 5212/5212 co-relation queries the response was YES. Maximal size of possible extension queue 639. Compared 123775 event pairs, 10318 based on Foata normal form. 16/11555 useless extension candidates. Maximal degree in co-relation 36490. Up to 17498 conditions per place. [2023-11-06 22:45:04,030 INFO L140 encePairwiseOnDemand]: 757/762 looper letters, 109 selfloop transitions, 34 changer transitions 0/155 dead transitions. [2023-11-06 22:45:04,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 155 transitions, 1403 flow [2023-11-06 22:45:04,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-06 22:45:04,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-11-06 22:45:04,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 10940 transitions. [2023-11-06 22:45:04,066 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44865485564304464 [2023-11-06 22:45:04,066 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 10940 transitions. [2023-11-06 22:45:04,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 10940 transitions. [2023-11-06 22:45:04,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:45:04,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 10940 transitions. [2023-11-06 22:45:04,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 341.875) internal successors, (10940), 32 states have internal predecessors, (10940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:04,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 762.0) internal successors, (25146), 33 states have internal predecessors, (25146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:04,371 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 762.0) internal successors, (25146), 33 states have internal predecessors, (25146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:04,372 INFO L175 Difference]: Start difference. First operand has 153 places, 121 transitions, 681 flow. Second operand 32 states and 10940 transitions. [2023-11-06 22:45:04,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 155 transitions, 1403 flow [2023-11-06 22:45:04,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 155 transitions, 1341 flow, removed 9 selfloop flow, removed 10 redundant places. [2023-11-06 22:45:04,393 INFO L231 Difference]: Finished difference. Result has 183 places, 130 transitions, 859 flow [2023-11-06 22:45:04,393 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=762, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=859, PETRI_PLACES=183, PETRI_TRANSITIONS=130} [2023-11-06 22:45:04,396 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 91 predicate places. [2023-11-06 22:45:04,397 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 130 transitions, 859 flow [2023-11-06 22:45:04,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 338.15625) internal successors, (10821), 32 states have internal predecessors, (10821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:04,399 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:45:04,399 INFO L208 CegarLoopForPetriNet]: trace histogram [31, 2, 1, 1, 1] [2023-11-06 22:45:04,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:45:04,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:45:04,611 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:45:04,611 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:04,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1194489382, now seen corresponding path program 3 times [2023-11-06 22:45:04,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:04,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763367887] [2023-11-06 22:45:04,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:04,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:05,109 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:45:05,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1118275860] [2023-11-06 22:45:05,110 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:45:05,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:45:05,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:45:05,111 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:45:05,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 22:45:06,475 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-06 22:45:06,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:45:06,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 22:45:06,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:45:06,594 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-11-06 22:45:06,594 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:45:06,942 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-11-06 22:45:06,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:06,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763367887] [2023-11-06 22:45:06,942 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:45:06,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118275860] [2023-11-06 22:45:06,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118275860] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:45:06,943 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:45:06,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2023-11-06 22:45:06,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025034059] [2023-11-06 22:45:06,944 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:45:06,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:45:06,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:06,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:45:06,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:45:07,046 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 762 [2023-11-06 22:45:07,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 130 transitions, 859 flow. Second operand has 10 states, 10 states have (on average 330.4) internal successors, (3304), 10 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:07,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:45:07,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 762 [2023-11-06 22:45:07,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:45:11,468 INFO L124 PetriNetUnfolderBase]: 11882/18710 cut-off events. [2023-11-06 22:45:11,468 INFO L125 PetriNetUnfolderBase]: For 2288/2288 co-relation queries the response was YES. [2023-11-06 22:45:11,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37229 conditions, 18710 events. 11882/18710 cut-off events. For 2288/2288 co-relation queries the response was YES. Maximal size of possible extension queue 639. Compared 123773 event pairs, 10318 based on Foata normal form. 32/11605 useless extension candidates. Maximal degree in co-relation 36606. Up to 17491 conditions per place. [2023-11-06 22:45:11,679 INFO L140 encePairwiseOnDemand]: 755/762 looper letters, 169 selfloop transitions, 13 changer transitions 0/194 dead transitions. [2023-11-06 22:45:11,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 194 transitions, 1948 flow [2023-11-06 22:45:11,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:45:11,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 22:45:11,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3717 transitions. [2023-11-06 22:45:11,689 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4434502505368647 [2023-11-06 22:45:11,689 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3717 transitions. [2023-11-06 22:45:11,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3717 transitions. [2023-11-06 22:45:11,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:45:11,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3717 transitions. [2023-11-06 22:45:11,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 337.90909090909093) internal successors, (3717), 11 states have internal predecessors, (3717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:11,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 762.0) internal successors, (9144), 12 states have internal predecessors, (9144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:11,713 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 762.0) internal successors, (9144), 12 states have internal predecessors, (9144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:11,713 INFO L175 Difference]: Start difference. First operand has 183 places, 130 transitions, 859 flow. Second operand 11 states and 3717 transitions. [2023-11-06 22:45:11,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 194 transitions, 1948 flow [2023-11-06 22:45:11,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 194 transitions, 1795 flow, removed 9 selfloop flow, removed 22 redundant places. [2023-11-06 22:45:11,747 INFO L231 Difference]: Finished difference. Result has 173 places, 136 transitions, 903 flow [2023-11-06 22:45:11,747 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=762, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=903, PETRI_PLACES=173, PETRI_TRANSITIONS=136} [2023-11-06 22:45:11,748 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 81 predicate places. [2023-11-06 22:45:11,748 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 136 transitions, 903 flow [2023-11-06 22:45:11,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 330.4) internal successors, (3304), 10 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:11,749 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:45:11,749 INFO L208 CegarLoopForPetriNet]: trace histogram [60, 2, 2, 1, 1, 1, 1, 1] [2023-11-06 22:45:11,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:45:11,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:45:11,956 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:45:11,957 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:11,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1213184869, now seen corresponding path program 1 times [2023-11-06 22:45:11,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:11,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169432517] [2023-11-06 22:45:11,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:11,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:13,141 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:45:13,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1700572779] [2023-11-06 22:45:13,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:13,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:45:13,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:45:13,151 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:45:13,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 22:45:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:16,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 5436 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:45:16,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:45:16,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1894 backedges. 0 proven. 964 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2023-11-06 22:45:16,303 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:45:16,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1894 backedges. 0 proven. 964 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2023-11-06 22:45:16,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:16,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169432517] [2023-11-06 22:45:16,454 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:45:16,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700572779] [2023-11-06 22:45:16,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700572779] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:45:16,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:45:16,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-06 22:45:16,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317328665] [2023-11-06 22:45:16,454 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:45:16,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:45:16,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:16,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:45:16,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:45:16,582 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 762 [2023-11-06 22:45:16,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 136 transitions, 903 flow. Second operand has 8 states, 8 states have (on average 339.375) internal successors, (2715), 8 states have internal predecessors, (2715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:16,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:45:16,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 762 [2023-11-06 22:45:16,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:45:22,229 INFO L124 PetriNetUnfolderBase]: 11971/18895 cut-off events. [2023-11-06 22:45:22,229 INFO L125 PetriNetUnfolderBase]: For 5161/5161 co-relation queries the response was YES. [2023-11-06 22:45:22,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38589 conditions, 18895 events. 11971/18895 cut-off events. For 5161/5161 co-relation queries the response was YES. Maximal size of possible extension queue 637. Compared 122901 event pairs, 10318 based on Foata normal form. 4/11762 useless extension candidates. Maximal degree in co-relation 38231. Up to 17491 conditions per place. [2023-11-06 22:45:22,488 INFO L140 encePairwiseOnDemand]: 757/762 looper letters, 267 selfloop transitions, 28 changer transitions 0/307 dead transitions. [2023-11-06 22:45:22,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 307 transitions, 3488 flow [2023-11-06 22:45:22,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:45:22,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 22:45:22,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2799 transitions. [2023-11-06 22:45:22,495 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45915354330708663 [2023-11-06 22:45:22,495 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2799 transitions. [2023-11-06 22:45:22,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2799 transitions. [2023-11-06 22:45:22,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:45:22,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2799 transitions. [2023-11-06 22:45:22,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 349.875) internal successors, (2799), 8 states have internal predecessors, (2799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:22,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 762.0) internal successors, (6858), 9 states have internal predecessors, (6858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:22,511 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 762.0) internal successors, (6858), 9 states have internal predecessors, (6858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:22,511 INFO L175 Difference]: Start difference. First operand has 173 places, 136 transitions, 903 flow. Second operand 8 states and 2799 transitions. [2023-11-06 22:45:22,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 307 transitions, 3488 flow [2023-11-06 22:45:22,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 307 transitions, 3461 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-11-06 22:45:22,565 INFO L231 Difference]: Finished difference. Result has 181 places, 154 transitions, 1438 flow [2023-11-06 22:45:22,565 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=762, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1438, PETRI_PLACES=181, PETRI_TRANSITIONS=154} [2023-11-06 22:45:22,566 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 89 predicate places. [2023-11-06 22:45:22,566 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 154 transitions, 1438 flow [2023-11-06 22:45:22,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 339.375) internal successors, (2715), 8 states have internal predecessors, (2715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:22,567 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:45:22,567 INFO L208 CegarLoopForPetriNet]: trace histogram [62, 3, 2, 1, 1] [2023-11-06 22:45:22,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:45:22,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:45:22,787 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:45:22,788 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:22,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1210853471, now seen corresponding path program 4 times [2023-11-06 22:45:22,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:22,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029237348] [2023-11-06 22:45:22,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:22,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:24,032 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:45:24,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [146068068] [2023-11-06 22:45:24,032 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 22:45:24,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:45:24,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:45:24,038 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:45:24,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-06 22:45:58,170 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 22:45:58,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:45:58,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 5600 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:45:58,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:45:58,404 INFO L134 CoverageAnalysis]: Checked inductivity of 2083 backedges. 1150 proven. 3 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2023-11-06 22:45:58,404 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:45:58,860 INFO L134 CoverageAnalysis]: Checked inductivity of 2083 backedges. 1088 proven. 65 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2023-11-06 22:45:58,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:58,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029237348] [2023-11-06 22:45:58,861 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:45:58,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146068068] [2023-11-06 22:45:58,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146068068] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:45:58,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:45:58,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-06 22:45:58,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559668682] [2023-11-06 22:45:58,862 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:45:58,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-06 22:45:58,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:58,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-06 22:45:58,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:46:00,387 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 762 [2023-11-06 22:46:00,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 154 transitions, 1438 flow. Second operand has 13 states, 13 states have (on average 332.6923076923077) internal successors, (4325), 13 states have internal predecessors, (4325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:00,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:46:00,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 762 [2023-11-06 22:46:00,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:46:08,316 INFO L124 PetriNetUnfolderBase]: 11959/18879 cut-off events. [2023-11-06 22:46:08,316 INFO L125 PetriNetUnfolderBase]: For 5966/5966 co-relation queries the response was YES. [2023-11-06 22:46:08,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38652 conditions, 18879 events. 11959/18879 cut-off events. For 5966/5966 co-relation queries the response was YES. Maximal size of possible extension queue 637. Compared 122899 event pairs, 10318 based on Foata normal form. 16/11758 useless extension candidates. Maximal degree in co-relation 38354. Up to 17490 conditions per place. [2023-11-06 22:46:08,610 INFO L140 encePairwiseOnDemand]: 756/762 looper letters, 176 selfloop transitions, 20 changer transitions 0/208 dead transitions. [2023-11-06 22:46:08,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 208 transitions, 2339 flow [2023-11-06 22:46:08,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 22:46:08,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-06 22:46:08,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 5729 transitions. [2023-11-06 22:46:08,618 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.442257217847769 [2023-11-06 22:46:08,618 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 5729 transitions. [2023-11-06 22:46:08,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 5729 transitions. [2023-11-06 22:46:08,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:46:08,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 5729 transitions. [2023-11-06 22:46:08,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 337.0) internal successors, (5729), 17 states have internal predecessors, (5729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:08,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 762.0) internal successors, (13716), 18 states have internal predecessors, (13716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:08,893 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 762.0) internal successors, (13716), 18 states have internal predecessors, (13716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:08,894 INFO L175 Difference]: Start difference. First operand has 181 places, 154 transitions, 1438 flow. Second operand 17 states and 5729 transitions. [2023-11-06 22:46:08,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 208 transitions, 2339 flow [2023-11-06 22:46:08,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 208 transitions, 2155 flow, removed 66 selfloop flow, removed 7 redundant places. [2023-11-06 22:46:08,937 INFO L231 Difference]: Finished difference. Result has 193 places, 155 transitions, 1318 flow [2023-11-06 22:46:08,938 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=762, PETRI_DIFFERENCE_MINUEND_FLOW=1229, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1318, PETRI_PLACES=193, PETRI_TRANSITIONS=155} [2023-11-06 22:46:08,939 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 101 predicate places. [2023-11-06 22:46:08,939 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 155 transitions, 1318 flow [2023-11-06 22:46:08,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 332.6923076923077) internal successors, (4325), 13 states have internal predecessors, (4325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:08,940 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:46:08,940 INFO L208 CegarLoopForPetriNet]: trace histogram [66, 3, 2, 1, 1] [2023-11-06 22:46:09,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:09,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:09,155 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:46:09,155 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:09,155 INFO L85 PathProgramCache]: Analyzing trace with hash -2111471519, now seen corresponding path program 5 times [2023-11-06 22:46:09,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:09,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506528227] [2023-11-06 22:46:09,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:09,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:10,147 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:46:10,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [675995068] [2023-11-06 22:46:10,148 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-06 22:46:10,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:10,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:10,155 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:46:10,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc0c3bb-9934-4ac3-ace7-64f268f71fd4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process