./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 4e7fbc69 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_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/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_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 03:21:30,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:21:30,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:21:30,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:21:30,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:21:30,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:21:30,573 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:21:30,577 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:21:30,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:21:30,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:21:30,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:21:30,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:21:30,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:21:30,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:21:30,591 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:21:30,592 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:21:30,593 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:21:30,594 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:21:30,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:21:30,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:21:30,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:21:30,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:21:30,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:21:30,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:21:30,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:21:30,628 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:21:30,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:21:30,630 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:21:30,631 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:21:30,632 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:21:30,633 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:21:30,634 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:21:30,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:21:30,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:21:30,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:21:30,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:21:30,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:21:30,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:21:30,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:21:30,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:21:30,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:21:30,643 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-23 03:21:30,686 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:21:30,687 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:21:30,687 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:21:30,688 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:21:30,689 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:21:30,689 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:21:30,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:21:30,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:21:30,690 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:21:30,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:21:30,692 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:21:30,692 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:21:30,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:21:30,693 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:21:30,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:21:30,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:21:30,694 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:21:30,694 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:21:30,694 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 03:21:30,694 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:21:30,695 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:21:30,695 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:21:30,695 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:21:30,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:21:30,696 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:21:30,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:21:30,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:21:30,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:21:30,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:21:30,698 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:21:30,698 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:21:30,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:21:30,699 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:21:30,699 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:21:30,699 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:21:30,700 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:21:30,700 INFO L138 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_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dda5467f7679a243042daf02aae11f74f39b907c2525dfc042cb8ad8b69dcfc9 [2022-11-23 03:21:31,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:21:31,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:21:31,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:21:31,082 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:21:31,083 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:21:31,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2022-11-23 03:21:34,256 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:21:34,671 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:21:34,671 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2022-11-23 03:21:34,696 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/data/4e9f3cc65/a7db53f2ed4244c2b7775f05b35cdb91/FLAG25b20e388 [2022-11-23 03:21:34,710 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/data/4e9f3cc65/a7db53f2ed4244c2b7775f05b35cdb91 [2022-11-23 03:21:34,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:21:34,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:21:34,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:21:34,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:21:34,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:21:34,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:21:34" (1/1) ... [2022-11-23 03:21:34,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eb9cb97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:34, skipping insertion in model container [2022-11-23 03:21:34,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:21:34" (1/1) ... [2022-11-23 03:21:34,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:21:34,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:21:35,292 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i[47038,47051] [2022-11-23 03:21:35,314 WARN L1569 CHandler]: Possible shadowing of function new [2022-11-23 03:21:35,315 WARN L1569 CHandler]: Possible shadowing of function new [2022-11-23 03:21:35,316 WARN L1569 CHandler]: Possible shadowing of function new [2022-11-23 03:21:35,317 WARN L1569 CHandler]: Possible shadowing of function new [2022-11-23 03:21:35,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:21:35,359 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:21:35,398 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i[47038,47051] [2022-11-23 03:21:35,401 WARN L1569 CHandler]: Possible shadowing of function new [2022-11-23 03:21:35,402 WARN L1569 CHandler]: Possible shadowing of function new [2022-11-23 03:21:35,402 WARN L1569 CHandler]: Possible shadowing of function new [2022-11-23 03:21:35,403 WARN L1569 CHandler]: Possible shadowing of function new [2022-11-23 03:21:35,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:21:35,479 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:21:35,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:35 WrapperNode [2022-11-23 03:21:35,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:21:35,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:21:35,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:21:35,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:21:35,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:35" (1/1) ... [2022-11-23 03:21:35,507 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:35" (1/1) ... [2022-11-23 03:21:35,540 INFO L138 Inliner]: procedures = 278, calls = 51, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 237 [2022-11-23 03:21:35,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:21:35,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:21:35,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:21:35,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:21:35,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:35" (1/1) ... [2022-11-23 03:21:35,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:35" (1/1) ... [2022-11-23 03:21:35,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:35" (1/1) ... [2022-11-23 03:21:35,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:35" (1/1) ... [2022-11-23 03:21:35,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:35" (1/1) ... [2022-11-23 03:21:35,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:35" (1/1) ... [2022-11-23 03:21:35,588 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:35" (1/1) ... [2022-11-23 03:21:35,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:35" (1/1) ... [2022-11-23 03:21:35,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:21:35,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:21:35,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:21:35,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:21:35,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:35" (1/1) ... [2022-11-23 03:21:35,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:21:35,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:21:35,633 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:21:35,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:21:35,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:21:35,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 03:21:35,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:21:35,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 03:21:35,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 03:21:35,689 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 03:21:35,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 03:21:35,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:21:35,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 03:21:35,690 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-23 03:21:35,690 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-23 03:21:35,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:21:35,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:21:35,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:21:35,692 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 03:21:36,010 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:21:36,013 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:21:36,539 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:21:36,553 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:21:36,553 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-23 03:21:36,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:21:36 BoogieIcfgContainer [2022-11-23 03:21:36,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:21:36,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:21:36,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:21:36,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:21:36,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:21:34" (1/3) ... [2022-11-23 03:21:36,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f3ed8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:21:36, skipping insertion in model container [2022-11-23 03:21:36,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:35" (2/3) ... [2022-11-23 03:21:36,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f3ed8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:21:36, skipping insertion in model container [2022-11-23 03:21:36,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:21:36" (3/3) ... [2022-11-23 03:21:36,582 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_92-evilcollapse_racing.i [2022-11-23 03:21:36,592 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 03:21:36,611 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:21:36,611 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-23 03:21:36,611 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 03:21:36,774 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-23 03:21:36,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 261 places, 284 transitions, 576 flow [2022-11-23 03:21:37,043 INFO L130 PetriNetUnfolder]: 28/301 cut-off events. [2022-11-23 03:21:37,043 INFO L131 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2022-11-23 03:21:37,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 301 events. 28/301 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 565 event pairs, 0 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 164. Up to 4 conditions per place. [2022-11-23 03:21:37,055 INFO L82 GeneralOperation]: Start removeDead. Operand has 261 places, 284 transitions, 576 flow [2022-11-23 03:21:37,072 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 259 places, 281 transitions, 570 flow [2022-11-23 03:21:37,077 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 03:21:37,095 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 259 places, 281 transitions, 570 flow [2022-11-23 03:21:37,098 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 259 places, 281 transitions, 570 flow [2022-11-23 03:21:37,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 259 places, 281 transitions, 570 flow [2022-11-23 03:21:37,160 INFO L130 PetriNetUnfolder]: 27/298 cut-off events. [2022-11-23 03:21:37,160 INFO L131 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2022-11-23 03:21:37,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 298 events. 27/298 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 550 event pairs, 0 based on Foata normal form. 0/252 useless extension candidates. Maximal degree in co-relation 164. Up to 4 conditions per place. [2022-11-23 03:21:37,166 INFO L119 LiptonReduction]: Number of co-enabled transitions 5400 [2022-11-23 03:22:28,424 WARN L233 SmtUtils]: Spent 18.01s on a formula simplification. DAG size of input: 184 DAG size of output: 182 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:22:37,555 WARN L233 SmtUtils]: Spent 9.13s on a formula simplification that was a NOOP. DAG size: 178 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:22:55,454 WARN L233 SmtUtils]: Spent 17.90s on a formula simplification. DAG size of input: 184 DAG size of output: 182 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:23:06,815 WARN L233 SmtUtils]: Spent 11.36s on a formula simplification that was a NOOP. DAG size: 178 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:23:29,430 WARN L233 SmtUtils]: Spent 22.07s on a formula simplification. DAG size of input: 184 DAG size of output: 183 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:23:41,706 WARN L233 SmtUtils]: Spent 12.27s on a formula simplification that was a NOOP. DAG size: 179 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:24:03,821 WARN L233 SmtUtils]: Spent 22.11s on a formula simplification. DAG size of input: 186 DAG size of output: 184 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:24:14,650 WARN L233 SmtUtils]: Spent 10.83s on a formula simplification that was a NOOP. DAG size: 180 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:24:15,307 INFO L134 LiptonReduction]: Checked pairs total: 5843 [2022-11-23 03:24:15,307 INFO L136 LiptonReduction]: Total number of compositions: 306 [2022-11-23 03:24:15,325 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:24:15,330 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;@8ee9991, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:24:15,331 INFO L358 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2022-11-23 03:24:15,335 INFO L130 PetriNetUnfolder]: 2/5 cut-off events. [2022-11-23 03:24:15,336 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:24:15,336 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:24:15,337 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-23 03:24:15,337 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-23 03:24:15,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:24:15,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1103233, now seen corresponding path program 1 times [2022-11-23 03:24:15,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:24:15,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186100946] [2022-11-23 03:24:15,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:24:15,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:24:15,489 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 03:24:15,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1883391268] [2022-11-23 03:24:15,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:24:15,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:24:15,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:24:15,498 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:24:15,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 03:24:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:24:15,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:24:15,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:24:15,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:24:15,759 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:24:15,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:24:15,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186100946] [2022-11-23 03:24:15,760 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 03:24:15,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883391268] [2022-11-23 03:24:15,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883391268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:24:15,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:24:15,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:24:15,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965425042] [2022-11-23 03:24:15,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:24:15,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:24:15,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:24:15,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:24:15,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:24:15,893 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 590 [2022-11-23 03:24:15,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 52 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 256.0) internal successors, (768), 3 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:15,898 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:24:15,898 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 590 [2022-11-23 03:24:15,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:24:16,576 INFO L130 PetriNetUnfolder]: 102/232 cut-off events. [2022-11-23 03:24:16,576 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-23 03:24:16,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 452 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 846 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. [2022-11-23 03:24:16,597 INFO L137 encePairwiseOnDemand]: 571/590 looper letters, 38 selfloop transitions, 3 changer transitions 0/45 dead transitions. [2022-11-23 03:24:16,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 45 transitions, 180 flow [2022-11-23 03:24:16,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:24:16,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:24:16,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 823 transitions. [2022-11-23 03:24:16,615 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46497175141242936 [2022-11-23 03:24:16,616 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 823 transitions. [2022-11-23 03:24:16,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 823 transitions. [2022-11-23 03:24:16,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:24:16,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 823 transitions. [2022-11-23 03:24:16,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 274.3333333333333) internal successors, (823), 3 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:16,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 590.0) internal successors, (2360), 4 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:16,636 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 590.0) internal successors, (2360), 4 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:16,638 INFO L175 Difference]: Start difference. First operand has 41 places, 52 transitions, 112 flow. Second operand 3 states and 823 transitions. [2022-11-23 03:24:16,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 45 transitions, 180 flow [2022-11-23 03:24:16,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 45 transitions, 180 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 03:24:16,644 INFO L231 Difference]: Finished difference. Result has 43 places, 43 transitions, 120 flow [2022-11-23 03:24:16,646 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=590, PETRI_DIFFERENCE_MINUEND_FLOW=90, 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=120, PETRI_PLACES=43, PETRI_TRANSITIONS=43} [2022-11-23 03:24:16,649 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 2 predicate places. [2022-11-23 03:24:16,650 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 43 transitions, 120 flow [2022-11-23 03:24:16,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 256.0) internal successors, (768), 3 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:16,650 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:24:16,651 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-23 03:24:16,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 03:24:16,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-23 03:24:16,861 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-23 03:24:16,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:24:16,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1103414, now seen corresponding path program 1 times [2022-11-23 03:24:16,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:24:16,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937565556] [2022-11-23 03:24:16,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:24:16,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:24:16,901 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 03:24:16,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2077492319] [2022-11-23 03:24:16,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:24:16,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:24:16,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:24:16,903 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:24:16,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 03:24:17,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:24:17,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:24:17,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:24:17,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:24:17,088 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:24:17,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:24:17,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937565556] [2022-11-23 03:24:17,089 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 03:24:17,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077492319] [2022-11-23 03:24:17,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077492319] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:24:17,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:24:17,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:24:17,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225755495] [2022-11-23 03:24:17,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:24:17,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:24:17,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:24:17,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:24:17,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:24:17,143 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 590 [2022-11-23 03:24:17,144 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 43 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 258.0) internal successors, (774), 3 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:17,144 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:24:17,144 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 590 [2022-11-23 03:24:17,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:24:17,305 INFO L130 PetriNetUnfolder]: 101/230 cut-off events. [2022-11-23 03:24:17,305 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-23 03:24:17,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460 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 843 event pairs, 80 based on Foata normal form. 2/127 useless extension candidates. Maximal degree in co-relation 443. Up to 210 conditions per place. [2022-11-23 03:24:17,307 INFO L137 encePairwiseOnDemand]: 588/590 looper letters, 37 selfloop transitions, 1 changer transitions 0/42 dead transitions. [2022-11-23 03:24:17,307 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 42 transitions, 188 flow [2022-11-23 03:24:17,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:24:17,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:24:17,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 809 transitions. [2022-11-23 03:24:17,311 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45706214689265534 [2022-11-23 03:24:17,311 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 809 transitions. [2022-11-23 03:24:17,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 809 transitions. [2022-11-23 03:24:17,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:24:17,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 809 transitions. [2022-11-23 03:24:17,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 269.6666666666667) internal successors, (809), 3 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:17,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 590.0) internal successors, (2360), 4 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:17,320 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 590.0) internal successors, (2360), 4 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:17,320 INFO L175 Difference]: Start difference. First operand has 43 places, 43 transitions, 120 flow. Second operand 3 states and 809 transitions. [2022-11-23 03:24:17,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 42 transitions, 188 flow [2022-11-23 03:24:17,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 42 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 03:24:17,322 INFO L231 Difference]: Finished difference. Result has 43 places, 42 transitions, 113 flow [2022-11-23 03:24:17,323 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=590, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=113, PETRI_PLACES=43, PETRI_TRANSITIONS=42} [2022-11-23 03:24:17,323 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 2 predicate places. [2022-11-23 03:24:17,324 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 42 transitions, 113 flow [2022-11-23 03:24:17,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.0) internal successors, (774), 3 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:17,325 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:24:17,325 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1] [2022-11-23 03:24:17,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 03:24:17,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:24:17,531 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-23 03:24:17,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:24:17,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1060348236, now seen corresponding path program 1 times [2022-11-23 03:24:17,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:24:17,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741605046] [2022-11-23 03:24:17,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:24:17,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:24:17,560 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 03:24:17,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1770541001] [2022-11-23 03:24:17,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:24:17,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:24:17,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:24:17,562 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:24:17,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 03:24:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:24:17,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 03:24:17,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:24:17,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:24:17,711 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:24:17,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:24:17,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741605046] [2022-11-23 03:24:17,717 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 03:24:17,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770541001] [2022-11-23 03:24:17,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770541001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:24:17,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:24:17,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:24:17,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161238000] [2022-11-23 03:24:17,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:24:17,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:24:17,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:24:17,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:24:17,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:24:17,740 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 590 [2022-11-23 03:24:17,741 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 42 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 258.6666666666667) internal successors, (776), 3 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:17,742 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:24:17,742 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 590 [2022-11-23 03:24:17,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:24:18,202 INFO L130 PetriNetUnfolder]: 101/234 cut-off events. [2022-11-23 03:24:18,202 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-23 03:24:18,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 471 conditions, 234 events. 101/234 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 861 event pairs, 80 based on Foata normal form. 1/129 useless extension candidates. Maximal degree in co-relation 459. Up to 212 conditions per place. [2022-11-23 03:24:18,204 INFO L137 encePairwiseOnDemand]: 585/590 looper letters, 38 selfloop transitions, 3 changer transitions 0/45 dead transitions. [2022-11-23 03:24:18,204 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 45 transitions, 205 flow [2022-11-23 03:24:18,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:24:18,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:24:18,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 813 transitions. [2022-11-23 03:24:18,208 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45932203389830506 [2022-11-23 03:24:18,208 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 813 transitions. [2022-11-23 03:24:18,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 813 transitions. [2022-11-23 03:24:18,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:24:18,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 813 transitions. [2022-11-23 03:24:18,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:18,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 590.0) internal successors, (2360), 4 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:18,216 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 590.0) internal successors, (2360), 4 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:18,216 INFO L175 Difference]: Start difference. First operand has 43 places, 42 transitions, 113 flow. Second operand 3 states and 813 transitions. [2022-11-23 03:24:18,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 45 transitions, 205 flow [2022-11-23 03:24:18,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 45 transitions, 205 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 03:24:18,218 INFO L231 Difference]: Finished difference. Result has 46 places, 43 transitions, 134 flow [2022-11-23 03:24:18,218 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=590, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=46, PETRI_TRANSITIONS=43} [2022-11-23 03:24:18,219 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 5 predicate places. [2022-11-23 03:24:18,219 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 43 transitions, 134 flow [2022-11-23 03:24:18,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.6666666666667) internal successors, (776), 3 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:18,220 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:24:18,220 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2022-11-23 03:24:18,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 03:24:18,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:24:18,426 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-23 03:24:18,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:24:18,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1486772872, now seen corresponding path program 1 times [2022-11-23 03:24:18,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:24:18,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173852011] [2022-11-23 03:24:18,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:24:18,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:24:18,493 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 03:24:18,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [692609073] [2022-11-23 03:24:18,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:24:18,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:24:18,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:24:18,496 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:24:18,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 03:24:18,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:24:18,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:24:18,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:24:18,746 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:24:18,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:24:18,767 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:24:18,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:24:18,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173852011] [2022-11-23 03:24:18,768 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 03:24:18,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692609073] [2022-11-23 03:24:18,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692609073] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:24:18,768 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 03:24:18,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-23 03:24:18,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771693363] [2022-11-23 03:24:18,769 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 03:24:18,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:24:18,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:24:18,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:24:18,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:24:18,863 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 590 [2022-11-23 03:24:18,865 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 43 transitions, 134 flow. Second operand has 6 states, 6 states have (on average 257.5) internal successors, (1545), 6 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:18,865 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:24:18,865 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 590 [2022-11-23 03:24:18,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:24:19,880 INFO L130 PetriNetUnfolder]: 103/246 cut-off events. [2022-11-23 03:24:19,880 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-23 03:24:19,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 521 conditions, 246 events. 103/246 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 921 event pairs, 80 based on Foata normal form. 6/144 useless extension candidates. Maximal degree in co-relation 506. Up to 210 conditions per place. [2022-11-23 03:24:19,882 INFO L137 encePairwiseOnDemand]: 583/590 looper letters, 42 selfloop transitions, 8 changer transitions 0/54 dead transitions. [2022-11-23 03:24:19,882 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 54 transitions, 278 flow [2022-11-23 03:24:19,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:24:19,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 03:24:19,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1593 transitions. [2022-11-23 03:24:19,887 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45 [2022-11-23 03:24:19,888 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1593 transitions. [2022-11-23 03:24:19,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1593 transitions. [2022-11-23 03:24:19,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:24:19,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1593 transitions. [2022-11-23 03:24:19,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 265.5) internal successors, (1593), 6 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:19,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 590.0) internal successors, (4130), 7 states have internal predecessors, (4130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:19,900 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 590.0) internal successors, (4130), 7 states have internal predecessors, (4130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:19,900 INFO L175 Difference]: Start difference. First operand has 46 places, 43 transitions, 134 flow. Second operand 6 states and 1593 transitions. [2022-11-23 03:24:19,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 54 transitions, 278 flow [2022-11-23 03:24:19,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 54 transitions, 275 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 03:24:19,903 INFO L231 Difference]: Finished difference. Result has 54 places, 48 transitions, 210 flow [2022-11-23 03:24:19,903 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=590, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=210, PETRI_PLACES=54, PETRI_TRANSITIONS=48} [2022-11-23 03:24:19,904 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 13 predicate places. [2022-11-23 03:24:19,904 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 48 transitions, 210 flow [2022-11-23 03:24:19,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 257.5) internal successors, (1545), 6 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:19,905 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:24:19,905 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1] [2022-11-23 03:24:19,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 03:24:20,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:24:20,120 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-23 03:24:20,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:24:20,121 INFO L85 PathProgramCache]: Analyzing trace with hash -592884660, now seen corresponding path program 2 times [2022-11-23 03:24:20,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:24:20,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818386951] [2022-11-23 03:24:20,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:24:20,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:24:20,209 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 03:24:20,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2030790633] [2022-11-23 03:24:20,216 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:24:20,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:24:20,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:24:20,218 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:24:20,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 03:24:20,497 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 03:24:20,498 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:24:20,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:24:20,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:24:20,520 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 03:24:20,521 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:24:20,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:24:20,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818386951] [2022-11-23 03:24:20,521 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 03:24:20,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030790633] [2022-11-23 03:24:20,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030790633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:24:20,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:24:20,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:24:20,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861441459] [2022-11-23 03:24:20,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:24:20,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:24:20,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:24:20,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:24:20,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:24:20,562 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 590 [2022-11-23 03:24:20,563 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 48 transitions, 210 flow. Second operand has 3 states, 3 states have (on average 257.0) internal successors, (771), 3 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:20,563 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:24:20,563 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 590 [2022-11-23 03:24:20,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:24:21,073 INFO L130 PetriNetUnfolder]: 103/244 cut-off events. [2022-11-23 03:24:21,073 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-23 03:24:21,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 558 conditions, 244 events. 103/244 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 904 event pairs, 80 based on Foata normal form. 1/138 useless extension candidates. Maximal degree in co-relation 538. Up to 224 conditions per place. [2022-11-23 03:24:21,075 INFO L137 encePairwiseOnDemand]: 586/590 looper letters, 41 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2022-11-23 03:24:21,076 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 48 transitions, 298 flow [2022-11-23 03:24:21,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:24:21,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:24:21,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 804 transitions. [2022-11-23 03:24:21,079 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4542372881355932 [2022-11-23 03:24:21,080 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 804 transitions. [2022-11-23 03:24:21,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 804 transitions. [2022-11-23 03:24:21,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:24:21,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 804 transitions. [2022-11-23 03:24:21,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 268.0) internal successors, (804), 3 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:21,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 590.0) internal successors, (2360), 4 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:21,089 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 590.0) internal successors, (2360), 4 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:21,089 INFO L175 Difference]: Start difference. First operand has 54 places, 48 transitions, 210 flow. Second operand 3 states and 804 transitions. [2022-11-23 03:24:21,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 48 transitions, 298 flow [2022-11-23 03:24:21,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 48 transitions, 287 flow, removed 4 selfloop flow, removed 1 redundant places. [2022-11-23 03:24:21,093 INFO L231 Difference]: Finished difference. Result has 56 places, 48 transitions, 212 flow [2022-11-23 03:24:21,093 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=590, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=56, PETRI_TRANSITIONS=48} [2022-11-23 03:24:21,094 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 15 predicate places. [2022-11-23 03:24:21,094 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 48 transitions, 212 flow [2022-11-23 03:24:21,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 257.0) internal successors, (771), 3 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:21,095 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:24:21,096 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 2, 1, 1, 1] [2022-11-23 03:24:21,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 03:24:21,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:24:21,307 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-23 03:24:21,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:24:21,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1199550136, now seen corresponding path program 3 times [2022-11-23 03:24:21,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:24:21,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005869823] [2022-11-23 03:24:21,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:24:21,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:24:21,430 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 03:24:21,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1787476740] [2022-11-23 03:24:21,430 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 03:24:21,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:24:21,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:24:21,439 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:24:21,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 03:24:21,914 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-23 03:24:21,914 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:24:21,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 03:24:21,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:24:21,985 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 03:24:21,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:24:22,362 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 03:24:22,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:24:22,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005869823] [2022-11-23 03:24:22,363 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 03:24:22,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787476740] [2022-11-23 03:24:22,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787476740] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:24:22,363 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 03:24:22,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2022-11-23 03:24:22,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103037868] [2022-11-23 03:24:22,364 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 03:24:22,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 03:24:22,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:24:22,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 03:24:22,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:24:23,418 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 590 [2022-11-23 03:24:23,422 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 48 transitions, 212 flow. Second operand has 10 states, 10 states have (on average 250.4) internal successors, (2504), 10 states have internal predecessors, (2504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:23,422 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:24:23,422 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 590 [2022-11-23 03:24:23,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:24:28,259 INFO L130 PetriNetUnfolder]: 203/472 cut-off events. [2022-11-23 03:24:28,259 INFO L131 PetriNetUnfolder]: For 69/69 co-relation queries the response was YES. [2022-11-23 03:24:28,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1029 conditions, 472 events. 203/472 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1985 event pairs, 160 based on Foata normal form. 2/268 useless extension candidates. Maximal degree in co-relation 1007. Up to 208 conditions per place. [2022-11-23 03:24:28,264 INFO L137 encePairwiseOnDemand]: 581/590 looper letters, 72 selfloop transitions, 15 changer transitions 0/91 dead transitions. [2022-11-23 03:24:28,264 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 91 transitions, 558 flow [2022-11-23 03:24:28,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 03:24:28,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-23 03:24:28,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2823 transitions. [2022-11-23 03:24:28,272 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4349768875192604 [2022-11-23 03:24:28,273 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2823 transitions. [2022-11-23 03:24:28,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2823 transitions. [2022-11-23 03:24:28,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:24:28,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2823 transitions. [2022-11-23 03:24:28,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 256.6363636363636) internal successors, (2823), 11 states have internal predecessors, (2823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:28,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 590.0) internal successors, (7080), 12 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:28,296 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 590.0) internal successors, (7080), 12 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:28,297 INFO L175 Difference]: Start difference. First operand has 56 places, 48 transitions, 212 flow. Second operand 11 states and 2823 transitions. [2022-11-23 03:24:28,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 91 transitions, 558 flow [2022-11-23 03:24:28,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 91 transitions, 544 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 03:24:28,309 INFO L231 Difference]: Finished difference. Result has 68 places, 57 transitions, 334 flow [2022-11-23 03:24:28,309 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=590, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=334, PETRI_PLACES=68, PETRI_TRANSITIONS=57} [2022-11-23 03:24:28,313 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 27 predicate places. [2022-11-23 03:24:28,313 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 57 transitions, 334 flow [2022-11-23 03:24:28,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 250.4) internal successors, (2504), 10 states have internal predecessors, (2504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:28,315 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:24:28,315 INFO L209 CegarLoopForPetriNet]: trace histogram [6, 2, 1, 1, 1] [2022-11-23 03:24:28,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-23 03:24:28,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:24:28,523 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-23 03:24:28,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:24:28,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1468656537, now seen corresponding path program 1 times [2022-11-23 03:24:28,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:24:28,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135484825] [2022-11-23 03:24:28,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:24:28,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:24:28,673 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 03:24:28,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1815300133] [2022-11-23 03:24:28,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:24:28,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:24:28,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:24:28,677 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:24:28,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 03:24:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:24:29,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 1536 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 03:24:29,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:24:29,404 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 03:24:29,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:24:29,485 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 03:24:29,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:24:29,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135484825] [2022-11-23 03:24:29,486 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 03:24:29,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815300133] [2022-11-23 03:24:29,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815300133] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:24:29,486 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 03:24:29,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-23 03:24:29,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314708164] [2022-11-23 03:24:29,487 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 03:24:29,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 03:24:29,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:24:29,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 03:24:29,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:24:29,665 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 590 [2022-11-23 03:24:29,669 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 57 transitions, 334 flow. Second operand has 12 states, 12 states have (on average 257.3333333333333) internal successors, (3088), 12 states have internal predecessors, (3088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:29,669 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:24:29,669 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 590 [2022-11-23 03:24:29,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:24:32,054 INFO L130 PetriNetUnfolder]: 203/508 cut-off events. [2022-11-23 03:24:32,055 INFO L131 PetriNetUnfolder]: For 410/410 co-relation queries the response was YES. [2022-11-23 03:24:32,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1254 conditions, 508 events. 203/508 cut-off events. For 410/410 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1962 event pairs, 160 based on Foata normal form. 18/323 useless extension candidates. Maximal degree in co-relation 1227. Up to 412 conditions per place. [2022-11-23 03:24:32,059 INFO L137 encePairwiseOnDemand]: 584/590 looper letters, 59 selfloop transitions, 21 changer transitions 0/84 dead transitions. [2022-11-23 03:24:32,060 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 84 transitions, 751 flow [2022-11-23 03:24:32,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:24:32,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-23 03:24:32,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3146 transitions. [2022-11-23 03:24:32,070 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4443502824858757 [2022-11-23 03:24:32,070 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3146 transitions. [2022-11-23 03:24:32,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3146 transitions. [2022-11-23 03:24:32,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:24:32,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3146 transitions. [2022-11-23 03:24:32,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 262.1666666666667) internal successors, (3146), 12 states have internal predecessors, (3146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:32,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 590.0) internal successors, (7670), 13 states have internal predecessors, (7670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:32,094 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 590.0) internal successors, (7670), 13 states have internal predecessors, (7670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:32,094 INFO L175 Difference]: Start difference. First operand has 68 places, 57 transitions, 334 flow. Second operand 12 states and 3146 transitions. [2022-11-23 03:24:32,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 84 transitions, 751 flow [2022-11-23 03:24:32,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 84 transitions, 721 flow, removed 13 selfloop flow, removed 3 redundant places. [2022-11-23 03:24:32,101 INFO L231 Difference]: Finished difference. Result has 83 places, 66 transitions, 494 flow [2022-11-23 03:24:32,101 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=590, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=494, PETRI_PLACES=83, PETRI_TRANSITIONS=66} [2022-11-23 03:24:32,102 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 42 predicate places. [2022-11-23 03:24:32,102 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 66 transitions, 494 flow [2022-11-23 03:24:32,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 257.3333333333333) internal successors, (3088), 12 states have internal predecessors, (3088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:32,122 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:24:32,122 INFO L209 CegarLoopForPetriNet]: trace histogram [12, 2, 1, 1, 1] [2022-11-23 03:24:32,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-23 03:24:32,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-23 03:24:32,332 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-23 03:24:32,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:24:32,333 INFO L85 PathProgramCache]: Analyzing trace with hash 734723097, now seen corresponding path program 2 times [2022-11-23 03:24:32,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:24:32,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176357607] [2022-11-23 03:24:32,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:24:32,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:24:32,533 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 03:24:32,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1577990137] [2022-11-23 03:24:32,533 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:24:32,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:24:32,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:24:32,536 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:24:32,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-23 03:24:33,865 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:24:33,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:24:33,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 2940 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 03:24:33,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:24:34,064 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 34 proven. 55 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 03:24:34,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:24:34,384 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 34 proven. 55 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 03:24:34,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:24:34,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176357607] [2022-11-23 03:24:34,385 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 03:24:34,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577990137] [2022-11-23 03:24:34,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577990137] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:24:34,385 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 03:24:34,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2022-11-23 03:24:34,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865436804] [2022-11-23 03:24:34,385 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 03:24:34,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-23 03:24:34,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:24:34,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-23 03:24:34,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-23 03:24:34,687 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 590 [2022-11-23 03:24:34,694 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 66 transitions, 494 flow. Second operand has 24 states, 24 states have (on average 257.1666666666667) internal successors, (6172), 24 states have internal predecessors, (6172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:34,694 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:24:34,694 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 590 [2022-11-23 03:24:34,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:24:38,984 INFO L130 PetriNetUnfolder]: 203/580 cut-off events. [2022-11-23 03:24:38,984 INFO L131 PetriNetUnfolder]: For 2393/2393 co-relation queries the response was YES. [2022-11-23 03:24:38,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1832 conditions, 580 events. 203/580 cut-off events. For 2393/2393 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2113 event pairs, 160 based on Foata normal form. 36/413 useless extension candidates. Maximal degree in co-relation 1799. Up to 412 conditions per place. [2022-11-23 03:24:38,989 INFO L137 encePairwiseOnDemand]: 584/590 looper letters, 95 selfloop transitions, 33 changer transitions 0/132 dead transitions. [2022-11-23 03:24:38,989 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 132 transitions, 1580 flow [2022-11-23 03:24:38,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-23 03:24:38,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-23 03:24:39,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 6266 transitions. [2022-11-23 03:24:39,004 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44251412429378534 [2022-11-23 03:24:39,005 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 6266 transitions. [2022-11-23 03:24:39,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 6266 transitions. [2022-11-23 03:24:39,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:24:39,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 6266 transitions. [2022-11-23 03:24:39,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 261.0833333333333) internal successors, (6266), 24 states have internal predecessors, (6266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:39,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 590.0) internal successors, (14750), 25 states have internal predecessors, (14750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:39,046 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 590.0) internal successors, (14750), 25 states have internal predecessors, (14750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:39,047 INFO L175 Difference]: Start difference. First operand has 83 places, 66 transitions, 494 flow. Second operand 24 states and 6266 transitions. [2022-11-23 03:24:39,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 132 transitions, 1580 flow [2022-11-23 03:24:39,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 132 transitions, 1466 flow, removed 19 selfloop flow, removed 4 redundant places. [2022-11-23 03:24:39,058 INFO L231 Difference]: Finished difference. Result has 115 places, 81 transitions, 772 flow [2022-11-23 03:24:39,058 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=590, PETRI_DIFFERENCE_MINUEND_FLOW=455, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=772, PETRI_PLACES=115, PETRI_TRANSITIONS=81} [2022-11-23 03:24:39,059 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 74 predicate places. [2022-11-23 03:24:39,059 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 81 transitions, 772 flow [2022-11-23 03:24:39,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 257.1666666666667) internal successors, (6172), 24 states have internal predecessors, (6172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:39,061 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:24:39,061 INFO L209 CegarLoopForPetriNet]: trace histogram [24, 2, 1, 1, 1] [2022-11-23 03:24:39,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-23 03:24:39,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-23 03:24:39,274 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-23 03:24:39,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:24:39,275 INFO L85 PathProgramCache]: Analyzing trace with hash -825623271, now seen corresponding path program 3 times [2022-11-23 03:24:39,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:24:39,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061211114] [2022-11-23 03:24:39,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:24:39,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:24:39,600 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 03:24:39,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [845837673] [2022-11-23 03:24:39,601 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 03:24:39,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:24:39,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:24:39,610 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:24:39,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-23 03:24:40,923 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-23 03:24:40,923 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:24:40,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 03:24:40,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:24:41,041 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2022-11-23 03:24:41,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:24:41,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:24:41,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061211114] [2022-11-23 03:24:41,041 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 03:24:41,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845837673] [2022-11-23 03:24:41,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845837673] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:24:41,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:24:41,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 03:24:41,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132033641] [2022-11-23 03:24:41,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:24:41,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:24:41,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:24:41,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:24:41,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:24:41,142 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 590 [2022-11-23 03:24:41,144 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 81 transitions, 772 flow. Second operand has 7 states, 7 states have (on average 253.14285714285714) internal successors, (1772), 7 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:41,144 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:24:41,144 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 590 [2022-11-23 03:24:41,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:24:42,779 INFO L130 PetriNetUnfolder]: 201/536 cut-off events. [2022-11-23 03:24:42,779 INFO L131 PetriNetUnfolder]: For 1414/1414 co-relation queries the response was YES. [2022-11-23 03:24:42,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1566 conditions, 536 events. 201/536 cut-off events. For 1414/1414 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1880 event pairs, 160 based on Foata normal form. 43/377 useless extension candidates. Maximal degree in co-relation 1519. Up to 468 conditions per place. [2022-11-23 03:24:42,784 INFO L137 encePairwiseOnDemand]: 584/590 looper letters, 79 selfloop transitions, 9 changer transitions 0/92 dead transitions. [2022-11-23 03:24:42,785 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 92 transitions, 993 flow [2022-11-23 03:24:42,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:24:42,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 03:24:42,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1553 transitions. [2022-11-23 03:24:42,790 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4387005649717514 [2022-11-23 03:24:42,790 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1553 transitions. [2022-11-23 03:24:42,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1553 transitions. [2022-11-23 03:24:42,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:24:42,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1553 transitions. [2022-11-23 03:24:42,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 258.8333333333333) internal successors, (1553), 6 states have internal predecessors, (1553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:42,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 590.0) internal successors, (4130), 7 states have internal predecessors, (4130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:42,802 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 590.0) internal successors, (4130), 7 states have internal predecessors, (4130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:42,802 INFO L175 Difference]: Start difference. First operand has 115 places, 81 transitions, 772 flow. Second operand 6 states and 1553 transitions. [2022-11-23 03:24:42,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 92 transitions, 993 flow [2022-11-23 03:24:42,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 92 transitions, 885 flow, removed 28 selfloop flow, removed 11 redundant places. [2022-11-23 03:24:42,821 INFO L231 Difference]: Finished difference. Result has 107 places, 71 transitions, 561 flow [2022-11-23 03:24:42,822 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=590, PETRI_DIFFERENCE_MINUEND_FLOW=543, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=561, PETRI_PLACES=107, PETRI_TRANSITIONS=71} [2022-11-23 03:24:42,823 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 66 predicate places. [2022-11-23 03:24:42,823 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 71 transitions, 561 flow [2022-11-23 03:24:42,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 253.14285714285714) internal successors, (1772), 7 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:42,824 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:24:42,824 INFO L209 CegarLoopForPetriNet]: trace histogram [46, 3, 2, 1, 1] [2022-11-23 03:24:42,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-23 03:24:43,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-23 03:24:43,035 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-23 03:24:43,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:24:43,035 INFO L85 PathProgramCache]: Analyzing trace with hash 130053988, now seen corresponding path program 4 times [2022-11-23 03:24:43,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:24:43,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073188028] [2022-11-23 03:24:43,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:24:43,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:24:43,649 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 03:24:43,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2078732648] [2022-11-23 03:24:43,649 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 03:24:43,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:24:43,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:24:43,651 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:24:43,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-23 03:24:47,263 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 03:24:47,263 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:24:47,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 10936 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-23 03:24:47,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:24:47,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1179 backedges. 600 proven. 253 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2022-11-23 03:24:47,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:24:48,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1179 backedges. 600 proven. 253 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2022-11-23 03:24:48,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:24:48,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073188028] [2022-11-23 03:24:48,407 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 03:24:48,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078732648] [2022-11-23 03:24:48,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078732648] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:24:48,407 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 03:24:48,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 32 [2022-11-23 03:24:48,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032660675] [2022-11-23 03:24:48,408 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 03:24:48,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-23 03:24:48,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:24:48,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-23 03:24:48,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-11-23 03:24:48,897 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 590 [2022-11-23 03:24:48,904 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 71 transitions, 561 flow. Second operand has 32 states, 32 states have (on average 257.1875) internal successors, (8230), 32 states have internal predecessors, (8230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:48,904 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:24:48,905 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 590 [2022-11-23 03:24:48,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:24:53,302 INFO L130 PetriNetUnfolder]: 201/568 cut-off events. [2022-11-23 03:24:53,303 INFO L131 PetriNetUnfolder]: For 6922/6922 co-relation queries the response was YES. [2022-11-23 03:24:53,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1648 conditions, 568 events. 201/568 cut-off events. For 6922/6922 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1898 event pairs, 160 based on Foata normal form. 24/390 useless extension candidates. Maximal degree in co-relation 1601. Up to 411 conditions per place. [2022-11-23 03:24:53,307 INFO L137 encePairwiseOnDemand]: 586/590 looper letters, 61 selfloop transitions, 39 changer transitions 0/104 dead transitions. [2022-11-23 03:24:53,308 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 104 transitions, 1160 flow [2022-11-23 03:24:53,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-23 03:24:53,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-11-23 03:24:53,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 8291 transitions. [2022-11-23 03:24:53,328 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4391419491525424 [2022-11-23 03:24:53,328 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 8291 transitions. [2022-11-23 03:24:53,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 8291 transitions. [2022-11-23 03:24:53,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:24:53,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 8291 transitions. [2022-11-23 03:24:53,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 259.09375) internal successors, (8291), 32 states have internal predecessors, (8291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:53,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 590.0) internal successors, (19470), 33 states have internal predecessors, (19470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:53,379 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 590.0) internal successors, (19470), 33 states have internal predecessors, (19470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:53,379 INFO L175 Difference]: Start difference. First operand has 107 places, 71 transitions, 561 flow. Second operand 32 states and 8291 transitions. [2022-11-23 03:24:53,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 104 transitions, 1160 flow [2022-11-23 03:24:53,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 104 transitions, 1142 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-23 03:24:53,395 INFO L231 Difference]: Finished difference. Result has 142 places, 80 transitions, 760 flow [2022-11-23 03:24:53,396 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=590, PETRI_DIFFERENCE_MINUEND_FLOW=543, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=760, PETRI_PLACES=142, PETRI_TRANSITIONS=80} [2022-11-23 03:24:53,397 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 101 predicate places. [2022-11-23 03:24:53,398 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 80 transitions, 760 flow [2022-11-23 03:24:53,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 257.1875) internal successors, (8230), 32 states have internal predecessors, (8230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:24:53,400 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:24:53,400 INFO L209 CegarLoopForPetriNet]: trace histogram [62, 3, 2, 1, 1] [2022-11-23 03:24:53,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-23 03:24:53,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-23 03:24:53,627 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-23 03:24:53,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:24:53,627 INFO L85 PathProgramCache]: Analyzing trace with hash -684684444, now seen corresponding path program 5 times [2022-11-23 03:24:53,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:24:53,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793881066] [2022-11-23 03:24:53,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:24:53,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:24:54,415 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 03:24:54,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [212700764] [2022-11-23 03:24:54,415 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-23 03:24:54,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:24:54,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:24:54,420 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:24:54,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01754be-1a16-4b01-8a1f-079347679d87/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process