./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_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_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/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_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/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_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/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 dda5467f7679a243042daf02aae11f74f39b907c2525dfc042cb8ad8b69dcfc9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:35:43,690 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:35:43,846 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:35:43,857 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:35:43,858 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:35:43,907 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:35:43,908 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:35:43,909 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:35:43,910 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:35:43,917 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:35:43,918 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:35:43,918 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:35:43,919 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:35:43,921 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:35:43,922 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:35:43,922 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:35:43,923 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:35:43,923 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:35:43,924 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:35:43,924 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:35:43,925 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:35:43,925 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:35:43,926 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:35:43,928 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:35:43,929 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:35:43,929 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:35:43,930 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:35:43,931 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:35:43,932 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:35:43,932 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:35:43,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:35:43,934 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:35:43,935 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:35:43,935 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:35:43,935 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:35:43,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:35:43,936 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:35:43,936 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:35:43,937 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:35:43,937 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:35:43,937 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:35:43,938 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_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dda5467f7679a243042daf02aae11f74f39b907c2525dfc042cb8ad8b69dcfc9 [2023-11-06 22:35:44,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:35:44,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:35:44,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:35:44,396 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:35:44,396 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:35:44,398 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2023-11-06 22:35:47,873 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:35:48,280 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:35:48,281 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2023-11-06 22:35:48,306 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/data/44f1f3b98/8b4444a7380e4289918f293872815190/FLAG7a7058ff2 [2023-11-06 22:35:48,326 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/data/44f1f3b98/8b4444a7380e4289918f293872815190 [2023-11-06 22:35:48,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:35:48,332 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:35:48,333 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:35:48,334 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:35:48,341 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:35:48,342 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:35:48" (1/1) ... [2023-11-06 22:35:48,343 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71e2f205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:48, skipping insertion in model container [2023-11-06 22:35:48,344 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:35:48" (1/1) ... [2023-11-06 22:35:48,427 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:35:49,222 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-06 22:35:49,223 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-06 22:35:49,223 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-06 22:35:49,225 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-06 22:35:49,284 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:35:49,329 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:35:49,410 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-06 22:35:49,411 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-06 22:35:49,413 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-06 22:35:49,415 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-06 22:35:49,447 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:35:49,561 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:35:49,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:49 WrapperNode [2023-11-06 22:35:49,563 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:35:49,565 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:35:49,566 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:35:49,566 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:35:49,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:49" (1/1) ... [2023-11-06 22:35:49,621 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:49" (1/1) ... [2023-11-06 22:35:49,686 INFO L138 Inliner]: procedures = 278, calls = 52, calls flagged for inlining = 12, calls inlined = 13, statements flattened = 247 [2023-11-06 22:35:49,688 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:35:49,689 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:35:49,689 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:35:49,689 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:35:49,702 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:49" (1/1) ... [2023-11-06 22:35:49,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:49" (1/1) ... [2023-11-06 22:35:49,722 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:49" (1/1) ... [2023-11-06 22:35:49,729 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:49" (1/1) ... [2023-11-06 22:35:49,746 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:49" (1/1) ... [2023-11-06 22:35:49,753 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:49" (1/1) ... [2023-11-06 22:35:49,757 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:49" (1/1) ... [2023-11-06 22:35:49,760 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:49" (1/1) ... [2023-11-06 22:35:49,767 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:35:49,768 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:35:49,768 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:35:49,769 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:35:49,770 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:49" (1/1) ... [2023-11-06 22:35:49,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:35:49,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:35:49,815 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:35:49,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:35:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:35:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:35:49,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:35:49,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:35:49,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:35:49,880 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 22:35:49,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:35:49,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:35:49,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:35:49,881 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 22:35:49,882 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 22:35:49,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:35:49,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:35:49,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:35:49,885 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 22:35:50,174 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:35:50,178 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:35:50,899 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:35:50,913 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:35:50,924 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-06 22:35:50,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:35:50 BoogieIcfgContainer [2023-11-06 22:35:50,928 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:35:50,931 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:35:50,931 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:35:50,935 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:35:50,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:35:48" (1/3) ... [2023-11-06 22:35:50,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba01dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:35:50, skipping insertion in model container [2023-11-06 22:35:50,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:49" (2/3) ... [2023-11-06 22:35:50,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba01dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:35:50, skipping insertion in model container [2023-11-06 22:35:50,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:35:50" (3/3) ... [2023-11-06 22:35:50,949 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_92-evilcollapse_racing.i [2023-11-06 22:35:50,966 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:35:50,980 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:35:50,981 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-06 22:35:50,981 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:35:51,110 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-06 22:35:51,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 269 places, 293 transitions, 593 flow [2023-11-06 22:35:51,390 INFO L124 PetriNetUnfolderBase]: 29/312 cut-off events. [2023-11-06 22:35:51,391 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:35:51,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 312 events. 29/312 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 604 event pairs, 0 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 166. Up to 4 conditions per place. [2023-11-06 22:35:51,403 INFO L82 GeneralOperation]: Start removeDead. Operand has 269 places, 293 transitions, 593 flow [2023-11-06 22:35:51,422 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 267 places, 290 transitions, 587 flow [2023-11-06 22:35:51,427 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:35:51,445 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 267 places, 290 transitions, 587 flow [2023-11-06 22:35:51,452 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 267 places, 290 transitions, 587 flow [2023-11-06 22:35:51,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 267 places, 290 transitions, 587 flow [2023-11-06 22:35:51,532 INFO L124 PetriNetUnfolderBase]: 28/309 cut-off events. [2023-11-06 22:35:51,533 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:35:51,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 309 events. 28/309 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 587 event pairs, 0 based on Foata normal form. 0/262 useless extension candidates. Maximal degree in co-relation 166. Up to 4 conditions per place. [2023-11-06 22:35:51,546 INFO L119 LiptonReduction]: Number of co-enabled transitions 6206 [2023-11-06 22:36:18,425 WARN L293 SmtUtils]: Spent 9.85s on a formula simplification. DAG size of input: 157 DAG size of output: 155 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:36:33,607 WARN L293 SmtUtils]: Spent 12.80s on a formula simplification. DAG size of input: 159 DAG size of output: 157 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:36:48,482 WARN L293 SmtUtils]: Spent 10.72s on a formula simplification. DAG size of input: 158 DAG size of output: 157 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:37:09,067 WARN L293 SmtUtils]: Spent 16.98s on a formula simplification. DAG size of input: 162 DAG size of output: 160 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:37:12,743 INFO L134 LiptonReduction]: Checked pairs total: 6771 [2023-11-06 22:37:12,743 INFO L136 LiptonReduction]: Total number of compositions: 320 [2023-11-06 22:37:12,762 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:37:12,768 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;@3c8acf4d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:37:12,768 INFO L358 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2023-11-06 22:37:12,777 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:37:12,777 INFO L124 PetriNetUnfolderBase]: 2/5 cut-off events. [2023-11-06 22:37:12,777 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:37:12,778 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:37:12,779 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:37:12,779 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-06 22:37:12,785 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:12,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1137921, now seen corresponding path program 1 times [2023-11-06 22:37:12,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:12,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401511] [2023-11-06 22:37:12,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:12,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:12,980 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:37:12,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1847119215] [2023-11-06 22:37:12,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:12,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:37:12,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:37:12,987 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:37:12,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:37:13,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:13,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:37:13,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:37:13,188 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 22:37:13,189 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:37:13,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:13,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401511] [2023-11-06 22:37:13,190 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:37:13,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847119215] [2023-11-06 22:37:13,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847119215] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:37:13,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:37:13,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:37:13,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073512741] [2023-11-06 22:37:13,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:37:13,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:37:13,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:13,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:37:13,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:37:13,283 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 613 [2023-11-06 22:37:13,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 52 transitions, 111 flow. Second operand has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 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 22:37:13,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:37:13,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 613 [2023-11-06 22:37:13,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:37:13,724 INFO L124 PetriNetUnfolderBase]: 102/232 cut-off events. [2023-11-06 22:37:13,725 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:37:13,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 451 conditions, 232 events. 102/232 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 839 event pairs, 80 based on Foata normal form. 12/134 useless extension candidates. Maximal degree in co-relation 404. Up to 209 conditions per place. [2023-11-06 22:37:13,729 INFO L140 encePairwiseOnDemand]: 594/613 looper letters, 38 selfloop transitions, 3 changer transitions 0/45 dead transitions. [2023-11-06 22:37:13,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 45 transitions, 179 flow [2023-11-06 22:37:13,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:37:13,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:37:13,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 841 transitions. [2023-11-06 22:37:13,764 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4573137574768896 [2023-11-06 22:37:13,765 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 841 transitions. [2023-11-06 22:37:13,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 841 transitions. [2023-11-06 22:37:13,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:37:13,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 841 transitions. [2023-11-06 22:37:13,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 280.3333333333333) internal successors, (841), 3 states have internal predecessors, (841), 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 22:37:13,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 613.0) internal successors, (2452), 4 states have internal predecessors, (2452), 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 22:37:13,799 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 613.0) internal successors, (2452), 4 states have internal predecessors, (2452), 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 22:37:13,802 INFO L175 Difference]: Start difference. First operand has 41 places, 52 transitions, 111 flow. Second operand 3 states and 841 transitions. [2023-11-06 22:37:13,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 45 transitions, 179 flow [2023-11-06 22:37:13,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 45 transitions, 179 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:37:13,811 INFO L231 Difference]: Finished difference. Result has 43 places, 43 transitions, 119 flow [2023-11-06 22:37:13,815 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=613, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=43, PETRI_TRANSITIONS=43} [2023-11-06 22:37:13,822 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 2 predicate places. [2023-11-06 22:37:13,822 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 43 transitions, 119 flow [2023-11-06 22:37:13,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 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 22:37:13,824 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:37:13,825 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:37:13,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:37:14,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-06 22:37:14,038 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-06 22:37:14,039 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:14,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1138112, now seen corresponding path program 1 times [2023-11-06 22:37:14,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:14,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707824360] [2023-11-06 22:37:14,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:14,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:14,102 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:37:14,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [838166232] [2023-11-06 22:37:14,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:14,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:37:14,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:37:14,105 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:37:14,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:37:14,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:14,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:37:14,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:37:14,318 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 22:37:14,319 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:37:14,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:14,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707824360] [2023-11-06 22:37:14,320 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:37:14,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838166232] [2023-11-06 22:37:14,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838166232] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:37:14,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:37:14,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:37:14,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933890295] [2023-11-06 22:37:14,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:37:14,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:37:14,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:14,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:37:14,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:37:14,419 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 613 [2023-11-06 22:37:14,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 43 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 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 22:37:14,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:37:14,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 613 [2023-11-06 22:37:14,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:37:14,695 INFO L124 PetriNetUnfolderBase]: 101/230 cut-off events. [2023-11-06 22:37:14,696 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:37:14,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 459 conditions, 230 events. 101/230 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 834 event pairs, 80 based on Foata normal form. 2/127 useless extension candidates. Maximal degree in co-relation 442. Up to 206 conditions per place. [2023-11-06 22:37:14,699 INFO L140 encePairwiseOnDemand]: 608/613 looper letters, 32 selfloop transitions, 5 changer transitions 0/41 dead transitions. [2023-11-06 22:37:14,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 41 transitions, 183 flow [2023-11-06 22:37:14,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:37:14,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:37:14,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 826 transitions. [2023-11-06 22:37:14,704 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44915715062533984 [2023-11-06 22:37:14,705 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 826 transitions. [2023-11-06 22:37:14,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 826 transitions. [2023-11-06 22:37:14,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:37:14,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 826 transitions. [2023-11-06 22:37:14,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 275.3333333333333) internal successors, (826), 3 states have internal predecessors, (826), 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 22:37:14,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 613.0) internal successors, (2452), 4 states have internal predecessors, (2452), 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 22:37:14,719 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 613.0) internal successors, (2452), 4 states have internal predecessors, (2452), 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 22:37:14,719 INFO L175 Difference]: Start difference. First operand has 43 places, 43 transitions, 119 flow. Second operand 3 states and 826 transitions. [2023-11-06 22:37:14,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 41 transitions, 183 flow [2023-11-06 22:37:14,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 41 transitions, 179 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:37:14,723 INFO L231 Difference]: Finished difference. Result has 42 places, 41 transitions, 115 flow [2023-11-06 22:37:14,723 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=613, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=115, PETRI_PLACES=42, PETRI_TRANSITIONS=41} [2023-11-06 22:37:14,724 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2023-11-06 22:37:14,725 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 41 transitions, 115 flow [2023-11-06 22:37:14,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 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 22:37:14,726 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:37:14,727 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1] [2023-11-06 22:37:14,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:37:14,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:37:14,935 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-06 22:37:14,936 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:14,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1093730586, now seen corresponding path program 1 times [2023-11-06 22:37:14,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:14,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005175805] [2023-11-06 22:37:14,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:14,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:14,981 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:37:14,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [271356825] [2023-11-06 22:37:14,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:14,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:37:14,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:37:14,984 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:37:15,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:37:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:15,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:37:15,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:37:15,170 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 22:37:15,170 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:37:15,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:15,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005175805] [2023-11-06 22:37:15,172 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:37:15,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271356825] [2023-11-06 22:37:15,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271356825] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:37:15,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:37:15,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:37:15,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788068593] [2023-11-06 22:37:15,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:37:15,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:37:15,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:15,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:37:15,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:37:15,221 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 613 [2023-11-06 22:37:15,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 41 transitions, 115 flow. Second operand has 3 states, 3 states have (on average 264.6666666666667) internal successors, (794), 3 states have internal predecessors, (794), 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 22:37:15,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:37:15,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 613 [2023-11-06 22:37:15,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:37:15,567 INFO L124 PetriNetUnfolderBase]: 101/234 cut-off events. [2023-11-06 22:37:15,568 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:37:15,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 234 events. 101/234 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 853 event pairs, 80 based on Foata normal form. 2/131 useless extension candidates. Maximal degree in co-relation 423. Up to 212 conditions per place. [2023-11-06 22:37:15,571 INFO L140 encePairwiseOnDemand]: 608/613 looper letters, 38 selfloop transitions, 2 changer transitions 0/44 dead transitions. [2023-11-06 22:37:15,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 44 transitions, 205 flow [2023-11-06 22:37:15,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:37:15,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:37:15,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 831 transitions. [2023-11-06 22:37:15,576 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45187601957585644 [2023-11-06 22:37:15,577 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 831 transitions. [2023-11-06 22:37:15,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 831 transitions. [2023-11-06 22:37:15,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:37:15,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 831 transitions. [2023-11-06 22:37:15,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 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 22:37:15,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 613.0) internal successors, (2452), 4 states have internal predecessors, (2452), 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 22:37:15,616 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 613.0) internal successors, (2452), 4 states have internal predecessors, (2452), 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 22:37:15,616 INFO L175 Difference]: Start difference. First operand has 42 places, 41 transitions, 115 flow. Second operand 3 states and 831 transitions. [2023-11-06 22:37:15,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 44 transitions, 205 flow [2023-11-06 22:37:15,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 44 transitions, 195 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:37:15,620 INFO L231 Difference]: Finished difference. Result has 43 places, 42 transitions, 123 flow [2023-11-06 22:37:15,620 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=613, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=123, PETRI_PLACES=43, PETRI_TRANSITIONS=42} [2023-11-06 22:37:15,621 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 2 predicate places. [2023-11-06 22:37:15,621 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 42 transitions, 123 flow [2023-11-06 22:37:15,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 264.6666666666667) internal successors, (794), 3 states have internal predecessors, (794), 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 22:37:15,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:37:15,623 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-06 22:37:15,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:37:15,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:37:15,831 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-06 22:37:15,831 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:15,831 INFO L85 PathProgramCache]: Analyzing trace with hash -453127906, now seen corresponding path program 1 times [2023-11-06 22:37:15,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:15,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407210829] [2023-11-06 22:37:15,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:15,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:15,933 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:37:15,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [406693355] [2023-11-06 22:37:15,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:15,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:37:15,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:37:15,947 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:37:15,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:37:16,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:16,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:37:16,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:37:16,194 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:37:16,194 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:37:16,225 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:37:16,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:16,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407210829] [2023-11-06 22:37:16,226 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:37:16,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406693355] [2023-11-06 22:37:16,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406693355] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:37:16,233 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:37:16,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-11-06 22:37:16,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206698324] [2023-11-06 22:37:16,234 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:37:16,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:37:16,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:16,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:37:16,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:37:16,358 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 613 [2023-11-06 22:37:16,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 42 transitions, 123 flow. Second operand has 6 states, 6 states have (on average 263.5) internal successors, (1581), 6 states have internal predecessors, (1581), 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 22:37:16,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:37:16,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 613 [2023-11-06 22:37:16,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:37:16,902 INFO L124 PetriNetUnfolderBase]: 103/246 cut-off events. [2023-11-06 22:37:16,903 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:37:16,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 516 conditions, 246 events. 103/246 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 915 event pairs, 80 based on Foata normal form. 6/144 useless extension candidates. Maximal degree in co-relation 439. Up to 210 conditions per place. [2023-11-06 22:37:16,906 INFO L140 encePairwiseOnDemand]: 606/613 looper letters, 42 selfloop transitions, 7 changer transitions 0/53 dead transitions. [2023-11-06 22:37:16,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 53 transitions, 265 flow [2023-11-06 22:37:16,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:37:16,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:37:16,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1629 transitions. [2023-11-06 22:37:16,914 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4429037520391517 [2023-11-06 22:37:16,915 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1629 transitions. [2023-11-06 22:37:16,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1629 transitions. [2023-11-06 22:37:16,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:37:16,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1629 transitions. [2023-11-06 22:37:16,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 271.5) internal successors, (1629), 6 states have internal predecessors, (1629), 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 22:37:16,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 613.0) internal successors, (4291), 7 states have internal predecessors, (4291), 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 22:37:16,937 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 613.0) internal successors, (4291), 7 states have internal predecessors, (4291), 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 22:37:16,937 INFO L175 Difference]: Start difference. First operand has 43 places, 42 transitions, 123 flow. Second operand 6 states and 1629 transitions. [2023-11-06 22:37:16,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 53 transitions, 265 flow [2023-11-06 22:37:16,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 53 transitions, 263 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:37:16,941 INFO L231 Difference]: Finished difference. Result has 51 places, 47 transitions, 197 flow [2023-11-06 22:37:16,942 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=613, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=197, PETRI_PLACES=51, PETRI_TRANSITIONS=47} [2023-11-06 22:37:16,943 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 10 predicate places. [2023-11-06 22:37:16,943 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 47 transitions, 197 flow [2023-11-06 22:37:16,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 263.5) internal successors, (1581), 6 states have internal predecessors, (1581), 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 22:37:16,945 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:37:16,945 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1] [2023-11-06 22:37:16,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-06 22:37:17,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:37:17,152 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-06 22:37:17,152 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:17,153 INFO L85 PathProgramCache]: Analyzing trace with hash 904323610, now seen corresponding path program 2 times [2023-11-06 22:37:17,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:17,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404506995] [2023-11-06 22:37:17,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:17,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:17,301 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:37:17,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [397604849] [2023-11-06 22:37:17,310 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:37:17,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:37:17,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:37:17,311 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:37:17,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:37:17,643 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:37:17,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:37:17,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:37:17,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:37:17,664 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-06 22:37:17,664 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:37:17,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:17,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404506995] [2023-11-06 22:37:17,665 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:37:17,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397604849] [2023-11-06 22:37:17,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397604849] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:37:17,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:37:17,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:37:17,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404831452] [2023-11-06 22:37:17,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:37:17,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:37:17,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:17,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:37:17,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:37:17,697 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 613 [2023-11-06 22:37:17,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 47 transitions, 197 flow. Second operand has 3 states, 3 states have (on average 263.0) internal successors, (789), 3 states have internal predecessors, (789), 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 22:37:17,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:37:17,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 613 [2023-11-06 22:37:17,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:37:18,136 INFO L124 PetriNetUnfolderBase]: 103/244 cut-off events. [2023-11-06 22:37:18,137 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-11-06 22:37:18,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 553 conditions, 244 events. 103/244 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 909 event pairs, 80 based on Foata normal form. 1/138 useless extension candidates. Maximal degree in co-relation 453. Up to 224 conditions per place. [2023-11-06 22:37:18,140 INFO L140 encePairwiseOnDemand]: 609/613 looper letters, 41 selfloop transitions, 2 changer transitions 0/47 dead transitions. [2023-11-06 22:37:18,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 47 transitions, 283 flow [2023-11-06 22:37:18,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:37:18,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:37:18,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 822 transitions. [2023-11-06 22:37:18,146 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4469820554649266 [2023-11-06 22:37:18,146 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 822 transitions. [2023-11-06 22:37:18,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 822 transitions. [2023-11-06 22:37:18,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:37:18,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 822 transitions. [2023-11-06 22:37:18,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 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 22:37:18,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 613.0) internal successors, (2452), 4 states have internal predecessors, (2452), 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 22:37:18,159 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 613.0) internal successors, (2452), 4 states have internal predecessors, (2452), 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 22:37:18,159 INFO L175 Difference]: Start difference. First operand has 51 places, 47 transitions, 197 flow. Second operand 3 states and 822 transitions. [2023-11-06 22:37:18,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 47 transitions, 283 flow [2023-11-06 22:37:18,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 47 transitions, 273 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-11-06 22:37:18,165 INFO L231 Difference]: Finished difference. Result has 53 places, 47 transitions, 197 flow [2023-11-06 22:37:18,165 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=613, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=197, PETRI_PLACES=53, PETRI_TRANSITIONS=47} [2023-11-06 22:37:18,166 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 12 predicate places. [2023-11-06 22:37:18,167 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 47 transitions, 197 flow [2023-11-06 22:37:18,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 263.0) internal successors, (789), 3 states have internal predecessors, (789), 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 22:37:18,168 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:37:18,168 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 2, 1, 1, 1] [2023-11-06 22:37:18,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:37:18,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:37:18,375 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-06 22:37:18,375 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:18,376 INFO L85 PathProgramCache]: Analyzing trace with hash -2030733836, now seen corresponding path program 3 times [2023-11-06 22:37:18,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:18,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401680096] [2023-11-06 22:37:18,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:18,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:18,529 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:37:18,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2122565556] [2023-11-06 22:37:18,530 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:37:18,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:37:18,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:37:18,531 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:37:18,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:37:18,935 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-06 22:37:18,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:37:18,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 22:37:18,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:37:19,008 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-06 22:37:19,008 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:37:19,615 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-06 22:37:19,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:19,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401680096] [2023-11-06 22:37:19,616 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:37:19,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122565556] [2023-11-06 22:37:19,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122565556] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:37:19,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:37:19,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2023-11-06 22:37:19,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889575871] [2023-11-06 22:37:19,617 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:37:19,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:37:19,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:19,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:37:19,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:37:20,720 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 613 [2023-11-06 22:37:20,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 47 transitions, 197 flow. Second operand has 10 states, 10 states have (on average 255.4) internal successors, (2554), 10 states have internal predecessors, (2554), 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 22:37:20,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:37:20,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 613 [2023-11-06 22:37:20,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:37:22,212 INFO L124 PetriNetUnfolderBase]: 106/254 cut-off events. [2023-11-06 22:37:22,213 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2023-11-06 22:37:22,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 601 conditions, 254 events. 106/254 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 899 event pairs, 80 based on Foata normal form. 2/151 useless extension candidates. Maximal degree in co-relation 461. Up to 202 conditions per place. [2023-11-06 22:37:22,216 INFO L140 encePairwiseOnDemand]: 604/613 looper letters, 44 selfloop transitions, 16 changer transitions 0/64 dead transitions. [2023-11-06 22:37:22,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 64 transitions, 434 flow [2023-11-06 22:37:22,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:37:22,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 22:37:22,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2851 transitions. [2023-11-06 22:37:22,231 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42280883879578823 [2023-11-06 22:37:22,232 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2851 transitions. [2023-11-06 22:37:22,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2851 transitions. [2023-11-06 22:37:22,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:37:22,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2851 transitions. [2023-11-06 22:37:22,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 259.1818181818182) internal successors, (2851), 11 states have internal predecessors, (2851), 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 22:37:22,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 613.0) internal successors, (7356), 12 states have internal predecessors, (7356), 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 22:37:22,266 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 613.0) internal successors, (7356), 12 states have internal predecessors, (7356), 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 22:37:22,266 INFO L175 Difference]: Start difference. First operand has 53 places, 47 transitions, 197 flow. Second operand 11 states and 2851 transitions. [2023-11-06 22:37:22,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 64 transitions, 434 flow [2023-11-06 22:37:22,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 64 transitions, 420 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:37:22,272 INFO L231 Difference]: Finished difference. Result has 64 places, 58 transitions, 330 flow [2023-11-06 22:37:22,272 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=613, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=330, PETRI_PLACES=64, PETRI_TRANSITIONS=58} [2023-11-06 22:37:22,273 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 23 predicate places. [2023-11-06 22:37:22,274 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 58 transitions, 330 flow [2023-11-06 22:37:22,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 255.4) internal successors, (2554), 10 states have internal predecessors, (2554), 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 22:37:22,275 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:37:22,276 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 2, 1, 1, 1] [2023-11-06 22:37:22,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:37:22,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-06 22:37:22,484 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-06 22:37:22,484 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:22,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1471765798, now seen corresponding path program 1 times [2023-11-06 22:37:22,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:22,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760958017] [2023-11-06 22:37:22,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:22,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:22,696 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:37:22,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [222361417] [2023-11-06 22:37:22,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:22,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:37:22,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:37:22,700 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:37:22,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 22:37:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:23,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:37:23,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:37:23,274 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:37:23,275 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:37:23,367 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:37:23,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:23,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760958017] [2023-11-06 22:37:23,368 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:37:23,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222361417] [2023-11-06 22:37:23,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222361417] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:37:23,368 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:37:23,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-06 22:37:23,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553040244] [2023-11-06 22:37:23,369 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:37:23,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:37:23,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:23,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:37:23,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:37:23,615 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 613 [2023-11-06 22:37:23,619 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 58 transitions, 330 flow. Second operand has 12 states, 12 states have (on average 263.3333333333333) internal successors, (3160), 12 states have internal predecessors, (3160), 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 22:37:23,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:37:23,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 613 [2023-11-06 22:37:23,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:37:24,854 INFO L124 PetriNetUnfolderBase]: 106/290 cut-off events. [2023-11-06 22:37:24,854 INFO L125 PetriNetUnfolderBase]: For 434/434 co-relation queries the response was YES. [2023-11-06 22:37:24,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 825 conditions, 290 events. 106/290 cut-off events. For 434/434 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1103 event pairs, 80 based on Foata normal form. 24/213 useless extension candidates. Maximal degree in co-relation 715. Up to 213 conditions per place. [2023-11-06 22:37:24,858 INFO L140 encePairwiseOnDemand]: 607/613 looper letters, 60 selfloop transitions, 21 changer transitions 0/85 dead transitions. [2023-11-06 22:37:24,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 85 transitions, 749 flow [2023-11-06 22:37:24,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:37:24,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 22:37:24,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3218 transitions. [2023-11-06 22:37:24,873 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43746601413811853 [2023-11-06 22:37:24,874 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3218 transitions. [2023-11-06 22:37:24,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3218 transitions. [2023-11-06 22:37:24,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:37:24,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3218 transitions. [2023-11-06 22:37:24,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 268.1666666666667) internal successors, (3218), 12 states have internal predecessors, (3218), 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 22:37:24,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 613.0) internal successors, (7969), 13 states have internal predecessors, (7969), 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 22:37:24,905 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 613.0) internal successors, (7969), 13 states have internal predecessors, (7969), 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 22:37:24,905 INFO L175 Difference]: Start difference. First operand has 64 places, 58 transitions, 330 flow. Second operand 12 states and 3218 transitions. [2023-11-06 22:37:24,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 85 transitions, 749 flow [2023-11-06 22:37:24,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 85 transitions, 726 flow, removed 9 selfloop flow, removed 2 redundant places. [2023-11-06 22:37:24,915 INFO L231 Difference]: Finished difference. Result has 80 places, 67 transitions, 497 flow [2023-11-06 22:37:24,915 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=613, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=497, PETRI_PLACES=80, PETRI_TRANSITIONS=67} [2023-11-06 22:37:24,917 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 39 predicate places. [2023-11-06 22:37:24,918 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 67 transitions, 497 flow [2023-11-06 22:37:24,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 263.3333333333333) internal successors, (3160), 12 states have internal predecessors, (3160), 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 22:37:24,939 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:37:24,939 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 2, 1, 1, 1] [2023-11-06 22:37:24,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:37:25,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-06 22:37:25,147 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-06 22:37:25,147 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:25,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1103765850, now seen corresponding path program 2 times [2023-11-06 22:37:25,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:25,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870564955] [2023-11-06 22:37:25,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:25,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:25,428 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:37:25,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [923867685] [2023-11-06 22:37:25,437 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:37:25,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:37:25,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:37:25,440 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:37:25,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 22:37:26,244 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:37:26,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:37:26,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 1168 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-06 22:37:26,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:37:26,405 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 34 proven. 55 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:37:26,406 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:37:26,702 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 34 proven. 55 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:37:26,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:26,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870564955] [2023-11-06 22:37:26,703 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:37:26,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923867685] [2023-11-06 22:37:26,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923867685] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:37:26,703 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:37:26,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2023-11-06 22:37:26,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198888111] [2023-11-06 22:37:26,704 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:37:26,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-06 22:37:26,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:26,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-06 22:37:26,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-06 22:37:27,152 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 613 [2023-11-06 22:37:27,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 67 transitions, 497 flow. Second operand has 24 states, 24 states have (on average 263.1666666666667) internal successors, (6316), 24 states have internal predecessors, (6316), 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 22:37:27,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:37:27,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 613 [2023-11-06 22:37:27,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:37:29,324 INFO L124 PetriNetUnfolderBase]: 106/362 cut-off events. [2023-11-06 22:37:29,324 INFO L125 PetriNetUnfolderBase]: For 3092/3092 co-relation queries the response was YES. [2023-11-06 22:37:29,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1406 conditions, 362 events. 106/362 cut-off events. For 3092/3092 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1284 event pairs, 80 based on Foata normal form. 48/309 useless extension candidates. Maximal degree in co-relation 1203. Up to 213 conditions per place. [2023-11-06 22:37:29,329 INFO L140 encePairwiseOnDemand]: 607/613 looper letters, 96 selfloop transitions, 33 changer transitions 0/133 dead transitions. [2023-11-06 22:37:29,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 133 transitions, 1585 flow [2023-11-06 22:37:29,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-06 22:37:29,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-06 22:37:29,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 6410 transitions. [2023-11-06 22:37:29,353 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43569874932028274 [2023-11-06 22:37:29,353 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 6410 transitions. [2023-11-06 22:37:29,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 6410 transitions. [2023-11-06 22:37:29,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:37:29,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 6410 transitions. [2023-11-06 22:37:29,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 267.0833333333333) internal successors, (6410), 24 states have internal predecessors, (6410), 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 22:37:29,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 613.0) internal successors, (15325), 25 states have internal predecessors, (15325), 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 22:37:29,407 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 613.0) internal successors, (15325), 25 states have internal predecessors, (15325), 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 22:37:29,407 INFO L175 Difference]: Start difference. First operand has 80 places, 67 transitions, 497 flow. Second operand 24 states and 6410 transitions. [2023-11-06 22:37:29,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 133 transitions, 1585 flow [2023-11-06 22:37:29,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 133 transitions, 1471 flow, removed 19 selfloop flow, removed 4 redundant places. [2023-11-06 22:37:29,424 INFO L231 Difference]: Finished difference. Result has 112 places, 82 transitions, 775 flow [2023-11-06 22:37:29,424 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=613, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=775, PETRI_PLACES=112, PETRI_TRANSITIONS=82} [2023-11-06 22:37:29,428 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 71 predicate places. [2023-11-06 22:37:29,428 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 82 transitions, 775 flow [2023-11-06 22:37:29,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 263.1666666666667) internal successors, (6316), 24 states have internal predecessors, (6316), 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 22:37:29,430 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:37:29,430 INFO L208 CegarLoopForPetriNet]: trace histogram [24, 2, 1, 1, 1] [2023-11-06 22:37:29,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:37:29,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-06 22:37:29,631 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-06 22:37:29,631 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:29,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1561230938, now seen corresponding path program 3 times [2023-11-06 22:37:29,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:29,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454949450] [2023-11-06 22:37:29,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:29,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:30,131 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:37:30,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1613473151] [2023-11-06 22:37:30,133 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:37:30,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:37:30,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:37:30,134 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:37:30,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 22:37:31,099 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-06 22:37:31,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:37:31,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:37:31,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:37:31,203 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-11-06 22:37:31,204 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:37:31,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:31,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454949450] [2023-11-06 22:37:31,205 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:37:31,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613473151] [2023-11-06 22:37:31,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613473151] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:37:31,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:37:31,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:37:31,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189491094] [2023-11-06 22:37:31,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:37:31,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:37:31,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:31,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:37:31,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:37:31,318 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 613 [2023-11-06 22:37:31,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 82 transitions, 775 flow. Second operand has 7 states, 7 states have (on average 258.14285714285717) internal successors, (1807), 7 states have internal predecessors, (1807), 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 22:37:31,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:37:31,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 613 [2023-11-06 22:37:31,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:37:31,829 INFO L124 PetriNetUnfolderBase]: 104/318 cut-off events. [2023-11-06 22:37:31,829 INFO L125 PetriNetUnfolderBase]: For 1638/1638 co-relation queries the response was YES. [2023-11-06 22:37:31,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1140 conditions, 318 events. 104/318 cut-off events. For 1638/1638 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1051 event pairs, 80 based on Foata normal form. 44/261 useless extension candidates. Maximal degree in co-relation 897. Up to 202 conditions per place. [2023-11-06 22:37:31,833 INFO L140 encePairwiseOnDemand]: 606/613 looper letters, 76 selfloop transitions, 13 changer transitions 0/93 dead transitions. [2023-11-06 22:37:31,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 93 transitions, 997 flow [2023-11-06 22:37:31,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:37:31,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:37:31,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1840 transitions. [2023-11-06 22:37:31,839 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42880447448147285 [2023-11-06 22:37:31,840 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1840 transitions. [2023-11-06 22:37:31,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1840 transitions. [2023-11-06 22:37:31,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:37:31,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1840 transitions. [2023-11-06 22:37:31,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 262.85714285714283) internal successors, (1840), 7 states have internal predecessors, (1840), 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 22:37:31,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 613.0) internal successors, (4904), 8 states have internal predecessors, (4904), 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 22:37:31,854 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 613.0) internal successors, (4904), 8 states have internal predecessors, (4904), 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 22:37:31,854 INFO L175 Difference]: Start difference. First operand has 112 places, 82 transitions, 775 flow. Second operand 7 states and 1840 transitions. [2023-11-06 22:37:31,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 93 transitions, 997 flow [2023-11-06 22:37:31,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 93 transitions, 886 flow, removed 29 selfloop flow, removed 11 redundant places. [2023-11-06 22:37:31,872 INFO L231 Difference]: Finished difference. Result has 105 places, 72 transitions, 568 flow [2023-11-06 22:37:31,873 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=613, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=568, PETRI_PLACES=105, PETRI_TRANSITIONS=72} [2023-11-06 22:37:31,874 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 64 predicate places. [2023-11-06 22:37:31,874 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 72 transitions, 568 flow [2023-11-06 22:37:31,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 258.14285714285717) internal successors, (1807), 7 states have internal predecessors, (1807), 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 22:37:31,875 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:37:31,875 INFO L208 CegarLoopForPetriNet]: trace histogram [46, 3, 2, 1, 1] [2023-11-06 22:37:31,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:37:32,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-06 22:37:32,083 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-06 22:37:32,083 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:32,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1595889921, now seen corresponding path program 4 times [2023-11-06 22:37:32,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:32,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081623909] [2023-11-06 22:37:32,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:32,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:32,922 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:37:32,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1499806298] [2023-11-06 22:37:32,923 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 22:37:32,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:37:32,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:37:32,924 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:37:32,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-06 22:37:35,319 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 22:37:35,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:37:35,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 4192 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-06 22:37:35,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:37:35,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1179 backedges. 600 proven. 253 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2023-11-06 22:37:35,793 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:37:36,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1179 backedges. 600 proven. 253 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2023-11-06 22:37:36,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:36,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081623909] [2023-11-06 22:37:36,387 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:37:36,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499806298] [2023-11-06 22:37:36,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499806298] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:37:36,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:37:36,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 32 [2023-11-06 22:37:36,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756062411] [2023-11-06 22:37:36,389 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:37:36,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-06 22:37:36,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:36,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-06 22:37:36,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2023-11-06 22:37:36,774 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 613 [2023-11-06 22:37:36,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 72 transitions, 568 flow. Second operand has 32 states, 32 states have (on average 263.1875) internal successors, (8422), 32 states have internal predecessors, (8422), 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 22:37:36,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:37:36,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 613 [2023-11-06 22:37:36,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:37:38,925 INFO L124 PetriNetUnfolderBase]: 104/350 cut-off events. [2023-11-06 22:37:38,925 INFO L125 PetriNetUnfolderBase]: For 7086/7086 co-relation queries the response was YES. [2023-11-06 22:37:38,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1224 conditions, 350 events. 104/350 cut-off events. For 7086/7086 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1088 event pairs, 80 based on Foata normal form. 24/273 useless extension candidates. Maximal degree in co-relation 971. Up to 212 conditions per place. [2023-11-06 22:37:38,929 INFO L140 encePairwiseOnDemand]: 609/613 looper letters, 62 selfloop transitions, 39 changer transitions 0/105 dead transitions. [2023-11-06 22:37:38,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 105 transitions, 1169 flow [2023-11-06 22:37:38,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-06 22:37:38,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-11-06 22:37:38,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 8483 transitions. [2023-11-06 22:37:38,955 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43245309951060357 [2023-11-06 22:37:38,956 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 8483 transitions. [2023-11-06 22:37:38,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 8483 transitions. [2023-11-06 22:37:38,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:37:38,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 8483 transitions. [2023-11-06 22:37:38,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 265.09375) internal successors, (8483), 32 states have internal predecessors, (8483), 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 22:37:39,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 613.0) internal successors, (20229), 33 states have internal predecessors, (20229), 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 22:37:39,019 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 613.0) internal successors, (20229), 33 states have internal predecessors, (20229), 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 22:37:39,019 INFO L175 Difference]: Start difference. First operand has 105 places, 72 transitions, 568 flow. Second operand 32 states and 8483 transitions. [2023-11-06 22:37:39,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 105 transitions, 1169 flow [2023-11-06 22:37:39,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 105 transitions, 1153 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-11-06 22:37:39,039 INFO L231 Difference]: Finished difference. Result has 141 places, 81 transitions, 769 flow [2023-11-06 22:37:39,039 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=613, PETRI_DIFFERENCE_MINUEND_FLOW=552, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=769, PETRI_PLACES=141, PETRI_TRANSITIONS=81} [2023-11-06 22:37:39,040 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 100 predicate places. [2023-11-06 22:37:39,040 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 81 transitions, 769 flow [2023-11-06 22:37:39,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 263.1875) internal successors, (8422), 32 states have internal predecessors, (8422), 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 22:37:39,042 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:37:39,043 INFO L208 CegarLoopForPetriNet]: trace histogram [60, 2, 2, 1, 1, 1, 1, 1] [2023-11-06 22:37:39,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:37:39,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:37:39,262 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-06 22:37:39,262 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:39,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1731598424, now seen corresponding path program 1 times [2023-11-06 22:37:39,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:39,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090725906] [2023-11-06 22:37:39,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:39,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:40,316 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:37:40,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1982346283] [2023-11-06 22:37:40,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:40,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:37:40,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:37:40,328 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:37:40,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-06 22:37:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:43,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 5462 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:37:43,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:37:44,065 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 22:37:44,065 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:37:44,206 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 22:37:44,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:44,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090725906] [2023-11-06 22:37:44,207 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:37:44,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982346283] [2023-11-06 22:37:44,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982346283] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:37:44,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:37:44,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-06 22:37:44,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908141860] [2023-11-06 22:37:44,208 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:37:44,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:37:44,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:44,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:37:44,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:37:44,336 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 613 [2023-11-06 22:37:44,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 81 transitions, 769 flow. Second operand has 8 states, 8 states have (on average 264.375) internal successors, (2115), 8 states have internal predecessors, (2115), 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 22:37:44,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:37:44,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 613 [2023-11-06 22:37:44,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:37:45,406 INFO L124 PetriNetUnfolderBase]: 193/535 cut-off events. [2023-11-06 22:37:45,406 INFO L125 PetriNetUnfolderBase]: For 4528/4528 co-relation queries the response was YES. [2023-11-06 22:37:45,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2721 conditions, 535 events. 193/535 cut-off events. For 4528/4528 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 941 event pairs, 80 based on Foata normal form. 4/438 useless extension candidates. Maximal degree in co-relation 2362. Up to 202 conditions per place. [2023-11-06 22:37:45,415 INFO L140 encePairwiseOnDemand]: 608/613 looper letters, 220 selfloop transitions, 28 changer transitions 0/252 dead transitions. [2023-11-06 22:37:45,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 252 transitions, 3246 flow [2023-11-06 22:37:45,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:37:45,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 22:37:45,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2152 transitions. [2023-11-06 22:37:45,421 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43882544861337686 [2023-11-06 22:37:45,421 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2152 transitions. [2023-11-06 22:37:45,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2152 transitions. [2023-11-06 22:37:45,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:37:45,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2152 transitions. [2023-11-06 22:37:45,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 269.0) internal successors, (2152), 8 states have internal predecessors, (2152), 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 22:37:45,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 613.0) internal successors, (5517), 9 states have internal predecessors, (5517), 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 22:37:45,434 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 613.0) internal successors, (5517), 9 states have internal predecessors, (5517), 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 22:37:45,434 INFO L175 Difference]: Start difference. First operand has 141 places, 81 transitions, 769 flow. Second operand 8 states and 2152 transitions. [2023-11-06 22:37:45,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 252 transitions, 3246 flow [2023-11-06 22:37:45,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 252 transitions, 2865 flow, removed 54 selfloop flow, removed 22 redundant places. [2023-11-06 22:37:45,476 INFO L231 Difference]: Finished difference. Result has 130 places, 99 transitions, 1218 flow [2023-11-06 22:37:45,477 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=613, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1218, PETRI_PLACES=130, PETRI_TRANSITIONS=99} [2023-11-06 22:37:45,478 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 89 predicate places. [2023-11-06 22:37:45,478 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 99 transitions, 1218 flow [2023-11-06 22:37:45,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 264.375) internal successors, (2115), 8 states have internal predecessors, (2115), 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 22:37:45,479 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:37:45,479 INFO L208 CegarLoopForPetriNet]: trace histogram [62, 3, 2, 1, 1] [2023-11-06 22:37:45,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:37:45,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:37:45,699 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-06 22:37:45,699 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:45,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1730295295, now seen corresponding path program 5 times [2023-11-06 22:37:45,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:45,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076890712] [2023-11-06 22:37:45,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:45,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:46,840 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:37:46,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [893201243] [2023-11-06 22:37:46,840 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-06 22:37:46,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:37:46,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:37:46,849 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:37:46,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8168e3e5-6887-4ca3-bfcb-03fe22a0555b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process