./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex_v.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex_v.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8730d6ec4fcbc5f6df390d4be768126ffa92771ead17d97dfd39e0d222630fca --- 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-5e519f3 [2022-11-02 20:52:30,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:52:30,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:52:30,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:52:30,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:52:30,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:52:30,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:52:30,453 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:52:30,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:52:30,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:52:30,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:52:30,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:52:30,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:52:30,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:52:30,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:52:30,473 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:52:30,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:52:30,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:52:30,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:52:30,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:52:30,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:52:30,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:52:30,495 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:52:30,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:52:30,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:52:30,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:52:30,506 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:52:30,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:52:30,509 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:52:30,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:52:30,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:52:30,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:52:30,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:52:30,517 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:52:30,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:52:30,519 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:52:30,519 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:52:30,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:52:30,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:52:30,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:52:30,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:52:30,524 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:52:30,576 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:52:30,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:52:30,577 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:52:30,577 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:52:30,579 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:52:30,579 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:52:30,580 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:52:30,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:52:30,580 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:52:30,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:52:30,582 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:52:30,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:52:30,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:52:30,583 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:52:30,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:52:30,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:52:30,584 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:52:30,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:52:30,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:52:30,585 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:52:30,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:52:30,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:52:30,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:52:30,586 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:52:30,586 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:52:30,587 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:52:30,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:52:30,589 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:52:30,589 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:52:30,589 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:52:30,590 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8730d6ec4fcbc5f6df390d4be768126ffa92771ead17d97dfd39e0d222630fca [2022-11-02 20:52:30,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:52:31,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:52:31,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:52:31,004 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:52:31,006 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:52:31,008 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex_v.c [2022-11-02 20:52:31,089 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/data/4965ccdba/0e90fce2fa9544178f2217ed3cd9d3a6/FLAGaa78c06c6 [2022-11-02 20:52:31,754 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:52:31,755 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex_v.c [2022-11-02 20:52:31,773 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/data/4965ccdba/0e90fce2fa9544178f2217ed3cd9d3a6/FLAGaa78c06c6 [2022-11-02 20:52:32,022 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/data/4965ccdba/0e90fce2fa9544178f2217ed3cd9d3a6 [2022-11-02 20:52:32,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:52:32,031 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:52:32,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:52:32,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:52:32,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:52:32,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:52:32" (1/1) ... [2022-11-02 20:52:32,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@743d54dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:32, skipping insertion in model container [2022-11-02 20:52:32,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:52:32" (1/1) ... [2022-11-02 20:52:32,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:52:32,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:52:32,339 WARN L230 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_3b3d4f99-e66a-438b-bb22-3969e3e5601b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex_v.c[1107,1120] [2022-11-02 20:52:32,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:52:32,546 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:52:32,562 WARN L230 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_3b3d4f99-e66a-438b-bb22-3969e3e5601b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex_v.c[1107,1120] [2022-11-02 20:52:32,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:52:32,657 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:52:32,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:32 WrapperNode [2022-11-02 20:52:32,658 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:52:32,659 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:52:32,659 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:52:32,659 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:52:32,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:32" (1/1) ... [2022-11-02 20:52:32,689 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:32" (1/1) ... [2022-11-02 20:52:32,806 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 590 [2022-11-02 20:52:32,807 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:52:32,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:52:32,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:52:32,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:52:32,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:32" (1/1) ... [2022-11-02 20:52:32,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:32" (1/1) ... [2022-11-02 20:52:32,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:32" (1/1) ... [2022-11-02 20:52:32,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:32" (1/1) ... [2022-11-02 20:52:32,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:32" (1/1) ... [2022-11-02 20:52:32,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:32" (1/1) ... [2022-11-02 20:52:32,936 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:32" (1/1) ... [2022-11-02 20:52:32,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:32" (1/1) ... [2022-11-02 20:52:32,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:52:32,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:52:32,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:52:32,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:52:32,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:32" (1/1) ... [2022-11-02 20:52:32,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:52:33,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:52:33,020 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:52:33,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:52:33,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:52:33,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:52:33,317 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:52:33,320 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:52:39,394 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:52:39,403 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:52:39,404 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:52:39,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:52:39 BoogieIcfgContainer [2022-11-02 20:52:39,407 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:52:39,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:52:39,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:52:39,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:52:39,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:52:32" (1/3) ... [2022-11-02 20:52:39,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ca0af3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:52:39, skipping insertion in model container [2022-11-02 20:52:39,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:32" (2/3) ... [2022-11-02 20:52:39,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ca0af3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:52:39, skipping insertion in model container [2022-11-02 20:52:39,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:52:39" (3/3) ... [2022-11-02 20:52:39,419 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sw_sym_ex_v.c [2022-11-02 20:52:39,443 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:52:39,444 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:52:39,514 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:52:39,520 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;@20dc2652, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:52:39,521 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:52:39,527 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 37 states have (on average 1.4864864864864864) internal successors, (55), 38 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:39,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 20:52:39,544 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:52:39,545 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 20:52:39,546 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:52:39,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:39,558 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-02 20:52:39,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:39,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785217024] [2022-11-02 20:52:39,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:39,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:39,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:52:39,911 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:52:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:52:40,069 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:52:40,072 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:52:40,074 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 20:52:40,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:52:40,083 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-02 20:52:40,088 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:52:40,121 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 20:52:40,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:52:40 BoogieIcfgContainer [2022-11-02 20:52:40,137 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:52:40,140 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:52:40,140 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:52:40,140 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:52:40,141 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:52:39" (3/4) ... [2022-11-02 20:52:40,145 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:52:40,145 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:52:40,148 INFO L158 Benchmark]: Toolchain (without parser) took 8115.68ms. Allocated memory was 107.0MB in the beginning and 339.7MB in the end (delta: 232.8MB). Free memory was 69.8MB in the beginning and 214.8MB in the end (delta: -145.0MB). Peak memory consumption was 86.8MB. Max. memory is 16.1GB. [2022-11-02 20:52:40,149 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 107.0MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:52:40,150 INFO L158 Benchmark]: CACSL2BoogieTranslator took 621.47ms. Allocated memory is still 107.0MB. Free memory was 69.6MB in the beginning and 68.9MB in the end (delta: 726.6kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:52:40,151 INFO L158 Benchmark]: Boogie Procedure Inliner took 148.59ms. Allocated memory is still 107.0MB. Free memory was 68.9MB in the beginning and 58.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:52:40,152 INFO L158 Benchmark]: Boogie Preprocessor took 167.49ms. Allocated memory is still 107.0MB. Free memory was 58.4MB in the beginning and 53.0MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 20:52:40,160 INFO L158 Benchmark]: RCFGBuilder took 6430.61ms. Allocated memory was 107.0MB in the beginning and 339.7MB in the end (delta: 232.8MB). Free memory was 53.0MB in the beginning and 241.1MB in the end (delta: -188.0MB). Peak memory consumption was 177.8MB. Max. memory is 16.1GB. [2022-11-02 20:52:40,162 INFO L158 Benchmark]: TraceAbstraction took 727.97ms. Allocated memory is still 339.7MB. Free memory was 240.0MB in the beginning and 215.9MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-02 20:52:40,163 INFO L158 Benchmark]: Witness Printer took 6.10ms. Allocated memory is still 339.7MB. Free memory was 215.9MB in the beginning and 214.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:52:40,174 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 107.0MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 621.47ms. Allocated memory is still 107.0MB. Free memory was 69.6MB in the beginning and 68.9MB in the end (delta: 726.6kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 148.59ms. Allocated memory is still 107.0MB. Free memory was 68.9MB in the beginning and 58.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 167.49ms. Allocated memory is still 107.0MB. Free memory was 58.4MB in the beginning and 53.0MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 6430.61ms. Allocated memory was 107.0MB in the beginning and 339.7MB in the end (delta: 232.8MB). Free memory was 53.0MB in the beginning and 241.1MB in the end (delta: -188.0MB). Peak memory consumption was 177.8MB. Max. memory is 16.1GB. * TraceAbstraction took 727.97ms. Allocated memory is still 339.7MB. Free memory was 240.0MB in the beginning and 215.9MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 6.10ms. Allocated memory is still 339.7MB. Free memory was 215.9MB in the beginning and 214.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 92, overapproximation of bitwiseAnd at line 82. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 8); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (8 - 1); [L28] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 1); [L29] const SORT_5 msb_SORT_5 = (SORT_5)1 << (1 - 1); [L31] const SORT_5 var_7 = 0; [L32] const SORT_5 var_13 = 1; [L33] const SORT_1 var_33 = 0; [L34] const SORT_1 var_42 = 4; [L35] const SORT_1 var_54 = 5; [L36] const SORT_1 var_193 = 3; [L37] const SORT_1 var_199 = 2; [L39] SORT_1 input_2; [L40] SORT_1 input_3; [L41] SORT_1 input_4; [L42] SORT_5 input_6; [L43] SORT_1 input_38; [L45] SORT_5 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L46] SORT_5 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L47] SORT_5 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L48] SORT_5 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L49] SORT_5 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L50] SORT_5 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L51] SORT_5 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L52] SORT_5 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L53] SORT_5 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L54] SORT_1 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L55] SORT_1 state_36 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L57] SORT_5 init_9_arg_1 = var_7; [L58] state_8 = init_9_arg_1 [L59] SORT_5 init_18_arg_1 = var_13; [L60] state_17 = init_18_arg_1 [L61] SORT_5 init_20_arg_1 = var_7; [L62] state_19 = init_20_arg_1 [L63] SORT_5 init_22_arg_1 = var_7; [L64] state_21 = init_22_arg_1 [L65] SORT_5 init_24_arg_1 = var_7; [L66] state_23 = init_24_arg_1 [L67] SORT_5 init_26_arg_1 = var_7; [L68] state_25 = init_26_arg_1 [L69] SORT_5 init_28_arg_1 = var_7; [L70] state_27 = init_28_arg_1 [L71] SORT_5 init_30_arg_1 = var_7; [L72] state_29 = init_30_arg_1 [L73] SORT_5 init_32_arg_1 = var_13; [L74] state_31 = init_32_arg_1 [L75] SORT_1 init_35_arg_1 = var_33; [L76] state_34 = init_35_arg_1 [L77] SORT_1 init_37_arg_1 = var_33; [L78] state_36 = init_37_arg_1 VAL [init_18_arg_1=1, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=1, init_35_arg_1=0, init_37_arg_1=0, init_9_arg_1=0, mask_SORT_1=255, mask_SORT_5=1, msb_SORT_1=128, msb_SORT_5=1, state_17=1, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=1, state_34=0, state_36=0, state_8=0, var_13=1, var_193=3, var_199=2, var_33=0, var_42=4, var_54=5, var_7=0] [L81] input_2 = __VERIFIER_nondet_uchar() [L82] input_2 = input_2 & mask_SORT_1 [L83] input_3 = __VERIFIER_nondet_uchar() [L84] input_3 = input_3 & mask_SORT_1 [L85] input_4 = __VERIFIER_nondet_uchar() [L86] input_4 = input_4 & mask_SORT_1 [L87] input_6 = __VERIFIER_nondet_uchar() [L88] input_38 = __VERIFIER_nondet_uchar() [L91] SORT_5 var_10_arg_0 = state_8; [L92] SORT_5 var_10 = ~var_10_arg_0; [L93] SORT_5 var_14_arg_0 = var_10; [L94] SORT_5 var_14 = ~var_14_arg_0; [L95] SORT_5 var_15_arg_0 = var_13; [L96] SORT_5 var_15_arg_1 = var_14; [L97] SORT_5 var_15 = var_15_arg_0 & var_15_arg_1; [L98] var_15 = var_15 & mask_SORT_5 [L99] SORT_5 bad_16_arg_0 = var_15; [L100] CALL __VERIFIER_assert(!(bad_16_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-02 20:52:40,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex_v.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8730d6ec4fcbc5f6df390d4be768126ffa92771ead17d97dfd39e0d222630fca --- 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-5e519f3 [2022-11-02 20:52:43,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:52:43,109 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:52:43,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:52:43,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:52:43,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:52:43,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:52:43,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:52:43,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:52:43,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:52:43,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:52:43,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:52:43,209 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:52:43,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:52:43,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:52:43,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:52:43,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:52:43,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:52:43,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:52:43,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:52:43,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:52:43,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:52:43,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:52:43,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:52:43,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:52:43,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:52:43,257 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:52:43,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:52:43,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:52:43,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:52:43,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:52:43,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:52:43,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:52:43,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:52:43,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:52:43,268 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:52:43,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:52:43,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:52:43,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:52:43,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:52:43,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:52:43,275 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-02 20:52:43,324 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:52:43,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:52:43,326 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:52:43,326 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:52:43,327 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:52:43,328 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:52:43,329 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:52:43,330 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:52:43,330 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:52:43,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:52:43,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:52:43,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:52:43,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:52:43,333 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:52:43,333 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 20:52:43,333 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-02 20:52:43,334 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-02 20:52:43,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:52:43,334 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:52:43,334 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:52:43,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:52:43,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:52:43,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:52:43,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:52:43,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:52:43,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:52:43,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:52:43,337 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-02 20:52:43,337 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-02 20:52:43,337 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:52:43,338 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:52:43,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:52:43,338 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-02 20:52:43,339 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8730d6ec4fcbc5f6df390d4be768126ffa92771ead17d97dfd39e0d222630fca [2022-11-02 20:52:43,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:52:43,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:52:43,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:52:43,854 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:52:43,855 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:52:43,857 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex_v.c [2022-11-02 20:52:43,939 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/data/4b647647a/ebe8649917474e92a38ab2bfc9fc35ce/FLAG97f764033 [2022-11-02 20:52:44,668 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:52:44,669 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex_v.c [2022-11-02 20:52:44,680 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/data/4b647647a/ebe8649917474e92a38ab2bfc9fc35ce/FLAG97f764033 [2022-11-02 20:52:44,951 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/data/4b647647a/ebe8649917474e92a38ab2bfc9fc35ce [2022-11-02 20:52:44,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:52:44,959 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:52:44,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:52:44,967 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:52:44,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:52:44,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:52:44" (1/1) ... [2022-11-02 20:52:44,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fa1bdf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:44, skipping insertion in model container [2022-11-02 20:52:44,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:52:44" (1/1) ... [2022-11-02 20:52:44,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:52:45,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:52:45,176 WARN L230 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_3b3d4f99-e66a-438b-bb22-3969e3e5601b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex_v.c[1107,1120] [2022-11-02 20:52:45,485 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:52:45,494 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:52:45,509 WARN L230 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_3b3d4f99-e66a-438b-bb22-3969e3e5601b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex_v.c[1107,1120] [2022-11-02 20:52:45,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:52:45,620 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:52:45,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:45 WrapperNode [2022-11-02 20:52:45,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:52:45,622 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:52:45,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:52:45,623 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:52:45,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:45" (1/1) ... [2022-11-02 20:52:45,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:45" (1/1) ... [2022-11-02 20:52:45,710 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 590 [2022-11-02 20:52:45,711 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:52:45,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:52:45,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:52:45,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:52:45,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:45" (1/1) ... [2022-11-02 20:52:45,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:45" (1/1) ... [2022-11-02 20:52:45,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:45" (1/1) ... [2022-11-02 20:52:45,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:45" (1/1) ... [2022-11-02 20:52:45,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:45" (1/1) ... [2022-11-02 20:52:45,761 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:45" (1/1) ... [2022-11-02 20:52:45,765 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:45" (1/1) ... [2022-11-02 20:52:45,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:45" (1/1) ... [2022-11-02 20:52:45,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:52:45,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:52:45,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:52:45,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:52:45,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:45" (1/1) ... [2022-11-02 20:52:45,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:52:45,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:52:45,817 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:52:45,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:52:45,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:52:45,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:52:46,241 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:52:46,255 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:52:47,133 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:52:47,143 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:52:47,143 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:52:47,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:52:47 BoogieIcfgContainer [2022-11-02 20:52:47,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:52:47,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:52:47,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:52:47,166 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:52:47,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:52:44" (1/3) ... [2022-11-02 20:52:47,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2fbe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:52:47, skipping insertion in model container [2022-11-02 20:52:47,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:45" (2/3) ... [2022-11-02 20:52:47,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2fbe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:52:47, skipping insertion in model container [2022-11-02 20:52:47,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:52:47" (3/3) ... [2022-11-02 20:52:47,170 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sw_sym_ex_v.c [2022-11-02 20:52:47,197 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:52:47,198 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:52:47,260 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:52:47,268 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;@674d5f24, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:52:47,269 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:52:47,274 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 37 states have (on average 1.4864864864864864) internal successors, (55), 38 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:47,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 20:52:47,283 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:52:47,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 20:52:47,285 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:52:47,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:47,292 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-02 20:52:47,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:52:47,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1668308082] [2022-11-02 20:52:47,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:47,310 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:52:47,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:52:47,315 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:52:47,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-02 20:52:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:47,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-02 20:52:47,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:52:47,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:47,791 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:52:47,793 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:52:47,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1668308082] [2022-11-02 20:52:47,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1668308082] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:47,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:47,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:52:47,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328844839] [2022-11-02 20:52:47,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:47,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:52:47,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:52:47,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:52:47,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:52:47,859 INFO L87 Difference]: Start difference. First operand has 39 states, 37 states have (on average 1.4864864864864864) internal successors, (55), 38 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:48,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:52:48,081 INFO L93 Difference]: Finished difference Result 104 states and 156 transitions. [2022-11-02 20:52:48,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:52:48,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-02 20:52:48,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:52:48,101 INFO L225 Difference]: With dead ends: 104 [2022-11-02 20:52:48,101 INFO L226 Difference]: Without dead ends: 67 [2022-11-02 20:52:48,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:52:48,115 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 88 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:52:48,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 130 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:52:48,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-02 20:52:48,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 37. [2022-11-02 20:52:48,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 36 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:48,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2022-11-02 20:52:48,174 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 5 [2022-11-02 20:52:48,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:52:48,175 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2022-11-02 20:52:48,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:48,175 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2022-11-02 20:52:48,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-02 20:52:48,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:52:48,177 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:52:48,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-02 20:52:48,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:52:48,393 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:52:48,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:48,394 INFO L85 PathProgramCache]: Analyzing trace with hash 129006159, now seen corresponding path program 1 times [2022-11-02 20:52:48,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:52:48,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [30925904] [2022-11-02 20:52:48,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:48,399 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:52:48,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:52:48,400 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:52:48,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-02 20:52:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:48,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:52:48,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:52:48,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:48,841 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:52:48,842 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:52:48,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [30925904] [2022-11-02 20:52:48,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [30925904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:48,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:48,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:52:48,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214938052] [2022-11-02 20:52:48,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:48,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:52:48,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:52:48,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:52:48,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:52:48,847 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:48,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:52:48,972 INFO L93 Difference]: Finished difference Result 106 states and 149 transitions. [2022-11-02 20:52:48,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:52:48,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-11-02 20:52:48,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:52:48,977 INFO L225 Difference]: With dead ends: 106 [2022-11-02 20:52:48,979 INFO L226 Difference]: Without dead ends: 73 [2022-11-02 20:52:48,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:52:48,982 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 84 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:52:48,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 125 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:52:48,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-02 20:52:48,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 41. [2022-11-02 20:52:48,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.4) internal successors, (56), 40 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:49,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 56 transitions. [2022-11-02 20:52:49,006 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 56 transitions. Word has length 36 [2022-11-02 20:52:49,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:52:49,008 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 56 transitions. [2022-11-02 20:52:49,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:49,009 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 56 transitions. [2022-11-02 20:52:49,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-02 20:52:49,012 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:52:49,013 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:52:49,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:52:49,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:52:49,230 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:52:49,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:49,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1257197235, now seen corresponding path program 1 times [2022-11-02 20:52:49,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:52:49,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594544821] [2022-11-02 20:52:49,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:49,233 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:52:49,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:52:49,235 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:52:49,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-02 20:52:49,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:49,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:52:49,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:52:49,730 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:49,731 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:52:49,731 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:52:49,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594544821] [2022-11-02 20:52:49,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594544821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:49,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:49,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:52:49,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774649228] [2022-11-02 20:52:49,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:49,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:52:49,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:52:49,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:52:49,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:52:49,734 INFO L87 Difference]: Start difference. First operand 41 states and 56 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:49,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:52:49,851 INFO L93 Difference]: Finished difference Result 131 states and 185 transitions. [2022-11-02 20:52:49,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:52:49,852 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-11-02 20:52:49,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:52:49,854 INFO L225 Difference]: With dead ends: 131 [2022-11-02 20:52:49,854 INFO L226 Difference]: Without dead ends: 98 [2022-11-02 20:52:49,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:52:49,856 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 80 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:52:49,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 170 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:52:49,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-02 20:52:49,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 57. [2022-11-02 20:52:49,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.4107142857142858) internal successors, (79), 56 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:49,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 79 transitions. [2022-11-02 20:52:49,869 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 79 transitions. Word has length 36 [2022-11-02 20:52:49,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:52:49,869 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 79 transitions. [2022-11-02 20:52:49,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:49,870 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 79 transitions. [2022-11-02 20:52:49,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-02 20:52:49,871 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:52:49,871 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:52:49,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:52:50,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:52:50,078 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:52:50,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:50,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1844003249, now seen corresponding path program 1 times [2022-11-02 20:52:50,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:52:50,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1170435219] [2022-11-02 20:52:50,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:50,080 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:52:50,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:52:50,082 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:52:50,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-02 20:52:50,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:50,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:52:50,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:52:50,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:50,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:52:50,547 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:52:50,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1170435219] [2022-11-02 20:52:50,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1170435219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:50,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:50,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:52:50,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509972337] [2022-11-02 20:52:50,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:50,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:52:50,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:52:50,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:52:50,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:52:50,550 INFO L87 Difference]: Start difference. First operand 57 states and 79 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:50,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:52:50,658 INFO L93 Difference]: Finished difference Result 131 states and 184 transitions. [2022-11-02 20:52:50,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:52:50,659 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-11-02 20:52:50,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:52:50,660 INFO L225 Difference]: With dead ends: 131 [2022-11-02 20:52:50,660 INFO L226 Difference]: Without dead ends: 98 [2022-11-02 20:52:50,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:52:50,662 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 64 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:52:50,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 169 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:52:50,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-02 20:52:50,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 63. [2022-11-02 20:52:50,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.403225806451613) internal successors, (87), 62 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:50,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 87 transitions. [2022-11-02 20:52:50,671 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 87 transitions. Word has length 36 [2022-11-02 20:52:50,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:52:50,672 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 87 transitions. [2022-11-02 20:52:50,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:50,672 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 87 transitions. [2022-11-02 20:52:50,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-02 20:52:50,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:52:50,674 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:52:50,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:52:50,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:52:50,895 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:52:50,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:50,896 INFO L85 PathProgramCache]: Analyzing trace with hash -68995887, now seen corresponding path program 1 times [2022-11-02 20:52:50,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:52:50,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [892177670] [2022-11-02 20:52:50,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:50,898 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:52:50,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:52:50,899 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:52:50,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-02 20:52:51,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:51,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-02 20:52:51,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:52:51,654 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:51,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:52:52,086 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:52,087 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:52:52,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [892177670] [2022-11-02 20:52:52,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [892177670] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:52:52,087 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:52:52,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-02 20:52:52,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755484441] [2022-11-02 20:52:52,088 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:52:52,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-02 20:52:52,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:52:52,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-02 20:52:52,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-02 20:52:52,090 INFO L87 Difference]: Start difference. First operand 63 states and 87 transitions. Second operand has 14 states, 14 states have (on average 5.0) internal successors, (70), 14 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:52,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:52:52,402 INFO L93 Difference]: Finished difference Result 128 states and 177 transitions. [2022-11-02 20:52:52,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:52:52,403 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.0) internal successors, (70), 14 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-11-02 20:52:52,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:52:52,404 INFO L225 Difference]: With dead ends: 128 [2022-11-02 20:52:52,404 INFO L226 Difference]: Without dead ends: 126 [2022-11-02 20:52:52,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2022-11-02 20:52:52,406 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 378 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 96 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:52:52,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 343 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 96 Unchecked, 0.2s Time] [2022-11-02 20:52:52,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-11-02 20:52:52,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 92. [2022-11-02 20:52:52,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.3846153846153846) internal successors, (126), 91 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:52,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 126 transitions. [2022-11-02 20:52:52,417 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 126 transitions. Word has length 36 [2022-11-02 20:52:52,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:52:52,417 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 126 transitions. [2022-11-02 20:52:52,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.0) internal successors, (70), 14 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:52,418 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 126 transitions. [2022-11-02 20:52:52,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-02 20:52:52,419 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:52:52,419 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:52:52,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:52:52,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:52:52,635 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:52:52,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:52,636 INFO L85 PathProgramCache]: Analyzing trace with hash 632603987, now seen corresponding path program 1 times [2022-11-02 20:52:52,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:52:52,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605225115] [2022-11-02 20:52:52,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:52,637 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:52:52,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:52:52,639 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:52:52,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-02 20:52:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:52,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:52:52,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:52:52,980 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:52,980 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:52:52,981 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:52:52,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1605225115] [2022-11-02 20:52:52,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1605225115] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:52,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:52,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:52:52,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000198201] [2022-11-02 20:52:52,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:52,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:52:52,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:52:52,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:52:52,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:52:52,984 INFO L87 Difference]: Start difference. First operand 92 states and 126 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:53,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:52:53,053 INFO L93 Difference]: Finished difference Result 126 states and 174 transitions. [2022-11-02 20:52:53,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:52:53,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-11-02 20:52:53,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:52:53,055 INFO L225 Difference]: With dead ends: 126 [2022-11-02 20:52:53,055 INFO L226 Difference]: Without dead ends: 69 [2022-11-02 20:52:53,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:52:53,056 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 78 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:52:53,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 123 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:52:53,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-02 20:52:53,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2022-11-02 20:52:53,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.373134328358209) internal successors, (92), 67 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:53,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 92 transitions. [2022-11-02 20:52:53,064 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 92 transitions. Word has length 36 [2022-11-02 20:52:53,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:52:53,065 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 92 transitions. [2022-11-02 20:52:53,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:53,065 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 92 transitions. [2022-11-02 20:52:53,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-02 20:52:53,068 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:52:53,068 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:52:53,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:52:53,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:52:53,285 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:52:53,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:53,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1469340409, now seen corresponding path program 1 times [2022-11-02 20:52:53,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:52:53,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054239060] [2022-11-02 20:52:53,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:53,287 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:52:53,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:52:53,289 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:52:53,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-02 20:52:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:53,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 72 conjunts are in the unsatisfiable core [2022-11-02 20:52:53,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:52:54,653 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 29 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:54,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:52:55,145 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 29 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:55,145 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:52:55,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1054239060] [2022-11-02 20:52:55,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1054239060] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:52:55,146 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:52:55,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-02 20:52:55,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866406132] [2022-11-02 20:52:55,146 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:52:55,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:52:55,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:52:55,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:52:55,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:52:55,149 INFO L87 Difference]: Start difference. First operand 68 states and 92 transitions. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:55,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:52:55,463 INFO L93 Difference]: Finished difference Result 120 states and 167 transitions. [2022-11-02 20:52:55,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:52:55,466 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-11-02 20:52:55,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:52:55,466 INFO L225 Difference]: With dead ends: 120 [2022-11-02 20:52:55,466 INFO L226 Difference]: Without dead ends: 87 [2022-11-02 20:52:55,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:52:55,468 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 81 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 59 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:52:55,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 377 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 59 Unchecked, 0.2s Time] [2022-11-02 20:52:55,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-02 20:52:55,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 72. [2022-11-02 20:52:55,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.3661971830985915) internal successors, (97), 71 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:55,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 97 transitions. [2022-11-02 20:52:55,474 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 97 transitions. Word has length 67 [2022-11-02 20:52:55,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:52:55,474 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 97 transitions. [2022-11-02 20:52:55,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:55,474 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 97 transitions. [2022-11-02 20:52:55,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-02 20:52:55,475 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:52:55,475 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:52:55,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:52:55,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:52:55,693 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:52:55,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:55,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1439423493, now seen corresponding path program 1 times [2022-11-02 20:52:55,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:52:55,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [267444105] [2022-11-02 20:52:55,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:55,694 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:52:55,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:52:55,695 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:52:55,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-02 20:52:56,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:56,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 20:52:56,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:52:56,344 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:56,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:52:56,640 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:56,640 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:52:56,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [267444105] [2022-11-02 20:52:56,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [267444105] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:52:56,641 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:52:56,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2022-11-02 20:52:56,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491059329] [2022-11-02 20:52:56,641 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:52:56,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 20:52:56,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:52:56,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 20:52:56,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:52:56,643 INFO L87 Difference]: Start difference. First operand 72 states and 97 transitions. Second operand has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:57,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:52:57,045 INFO L93 Difference]: Finished difference Result 192 states and 266 transitions. [2022-11-02 20:52:57,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:52:57,046 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-11-02 20:52:57,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:52:57,047 INFO L225 Difference]: With dead ends: 192 [2022-11-02 20:52:57,047 INFO L226 Difference]: Without dead ends: 159 [2022-11-02 20:52:57,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=310, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:52:57,049 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 381 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:52:57,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 407 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 95 Invalid, 0 Unknown, 24 Unchecked, 0.2s Time] [2022-11-02 20:52:57,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-02 20:52:57,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 119. [2022-11-02 20:52:57,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 118 states have (on average 1.3728813559322033) internal successors, (162), 118 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:57,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 162 transitions. [2022-11-02 20:52:57,070 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 162 transitions. Word has length 67 [2022-11-02 20:52:57,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:52:57,071 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 162 transitions. [2022-11-02 20:52:57,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:57,071 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 162 transitions. [2022-11-02 20:52:57,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-02 20:52:57,074 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:52:57,074 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-02 20:52:57,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-02 20:52:57,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:52:57,293 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:52:57,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:57,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1080536441, now seen corresponding path program 1 times [2022-11-02 20:52:57,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:52:57,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [483672611] [2022-11-02 20:52:57,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:57,295 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:52:57,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:52:57,296 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:52:57,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-02 20:52:57,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:57,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-02 20:52:57,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:52:58,496 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:58,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:52:59,524 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:59,525 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:52:59,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [483672611] [2022-11-02 20:52:59,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [483672611] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:52:59,525 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:52:59,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2022-11-02 20:52:59,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606012391] [2022-11-02 20:52:59,525 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:52:59,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-02 20:52:59,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:52:59,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-02 20:52:59,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=663, Unknown=0, NotChecked=0, Total=756 [2022-11-02 20:52:59,528 INFO L87 Difference]: Start difference. First operand 119 states and 162 transitions. Second operand has 28 states, 28 states have (on average 4.714285714285714) internal successors, (132), 28 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:00,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:53:00,030 INFO L93 Difference]: Finished difference Result 306 states and 422 transitions. [2022-11-02 20:53:00,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-02 20:53:00,032 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.714285714285714) internal successors, (132), 28 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-11-02 20:53:00,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:53:00,033 INFO L225 Difference]: With dead ends: 306 [2022-11-02 20:53:00,033 INFO L226 Difference]: Without dead ends: 304 [2022-11-02 20:53:00,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=158, Invalid=964, Unknown=0, NotChecked=0, Total=1122 [2022-11-02 20:53:00,035 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 287 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 157 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:53:00,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 1013 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 157 Unchecked, 0.3s Time] [2022-11-02 20:53:00,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-11-02 20:53:00,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 210. [2022-11-02 20:53:00,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 209 states have (on average 1.3732057416267942) internal successors, (287), 209 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:00,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 287 transitions. [2022-11-02 20:53:00,061 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 287 transitions. Word has length 67 [2022-11-02 20:53:00,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:53:00,063 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 287 transitions. [2022-11-02 20:53:00,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.714285714285714) internal successors, (132), 28 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:00,063 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 287 transitions. [2022-11-02 20:53:00,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-02 20:53:00,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:53:00,070 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:53:00,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-02 20:53:00,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:53:00,287 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:53:00,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:00,287 INFO L85 PathProgramCache]: Analyzing trace with hash -378936567, now seen corresponding path program 1 times [2022-11-02 20:53:00,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:53:00,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1116282532] [2022-11-02 20:53:00,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:00,289 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:53:00,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:53:00,290 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:53:00,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-02 20:53:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:00,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 72 conjunts are in the unsatisfiable core [2022-11-02 20:53:00,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:53:01,494 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 31 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:53:01,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:53:01,887 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 31 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:53:01,888 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:53:01,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1116282532] [2022-11-02 20:53:01,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1116282532] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:53:01,889 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:53:01,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-02 20:53:01,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127211105] [2022-11-02 20:53:01,891 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:53:01,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:53:01,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:53:01,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:53:01,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:53:01,893 INFO L87 Difference]: Start difference. First operand 210 states and 287 transitions. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:02,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:53:02,044 INFO L93 Difference]: Finished difference Result 269 states and 370 transitions. [2022-11-02 20:53:02,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:53:02,049 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-11-02 20:53:02,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:53:02,051 INFO L225 Difference]: With dead ends: 269 [2022-11-02 20:53:02,051 INFO L226 Difference]: Without dead ends: 210 [2022-11-02 20:53:02,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:53:02,052 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 26 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 56 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:53:02,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 270 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 56 Unchecked, 0.1s Time] [2022-11-02 20:53:02,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-11-02 20:53:02,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2022-11-02 20:53:02,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 209 states have (on average 1.354066985645933) internal successors, (283), 209 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:02,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 283 transitions. [2022-11-02 20:53:02,061 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 283 transitions. Word has length 67 [2022-11-02 20:53:02,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:53:02,062 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 283 transitions. [2022-11-02 20:53:02,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:02,062 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 283 transitions. [2022-11-02 20:53:02,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-02 20:53:02,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:53:02,063 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:53:02,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-02 20:53:02,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:53:02,280 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:53:02,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:02,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1561616699, now seen corresponding path program 1 times [2022-11-02 20:53:02,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:53:02,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [159139373] [2022-11-02 20:53:02,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:02,282 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:53:02,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:53:02,283 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:53:02,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-02 20:53:02,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:02,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:53:02,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:53:02,735 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-02 20:53:02,735 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:53:02,735 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:53:02,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [159139373] [2022-11-02 20:53:02,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [159139373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:53:02,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:53:02,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:53:02,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281921962] [2022-11-02 20:53:02,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:53:02,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:53:02,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:53:02,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:53:02,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:53:02,738 INFO L87 Difference]: Start difference. First operand 210 states and 283 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:02,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:53:02,804 INFO L93 Difference]: Finished difference Result 243 states and 330 transitions. [2022-11-02 20:53:02,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:53:02,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-11-02 20:53:02,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:53:02,805 INFO L225 Difference]: With dead ends: 243 [2022-11-02 20:53:02,806 INFO L226 Difference]: Without dead ends: 146 [2022-11-02 20:53:02,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:53:02,807 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 64 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:53:02,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 133 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:53:02,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-02 20:53:02,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2022-11-02 20:53:02,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 1.3586206896551725) internal successors, (197), 145 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:02,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 197 transitions. [2022-11-02 20:53:02,813 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 197 transitions. Word has length 67 [2022-11-02 20:53:02,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:53:02,813 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 197 transitions. [2022-11-02 20:53:02,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:02,813 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 197 transitions. [2022-11-02 20:53:02,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-02 20:53:02,822 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:53:02,823 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:53:02,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-02 20:53:03,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:53:03,026 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:53:03,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:03,027 INFO L85 PathProgramCache]: Analyzing trace with hash -140488559, now seen corresponding path program 2 times [2022-11-02 20:53:03,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:53:03,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1771922068] [2022-11-02 20:53:03,028 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:53:03,028 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:53:03,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:53:03,030 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:53:03,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-02 20:53:03,519 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:53:03,520 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:53:03,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 1481 conjuncts, 129 conjunts are in the unsatisfiable core [2022-11-02 20:53:03,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:53:07,117 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 56 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:53:07,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:53:19,192 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 56 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:53:19,192 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:53:19,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1771922068] [2022-11-02 20:53:19,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1771922068] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:53:19,193 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:53:19,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 46 [2022-11-02 20:53:19,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665901000] [2022-11-02 20:53:19,194 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:53:19,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-02 20:53:19,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:53:19,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-02 20:53:19,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1959, Unknown=0, NotChecked=0, Total=2070 [2022-11-02 20:53:19,196 INFO L87 Difference]: Start difference. First operand 146 states and 197 transitions. Second operand has 46 states, 46 states have (on average 3.630434782608696) internal successors, (167), 46 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:20,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:53:20,851 INFO L93 Difference]: Finished difference Result 260 states and 350 transitions. [2022-11-02 20:53:20,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-02 20:53:20,852 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 3.630434782608696) internal successors, (167), 46 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-11-02 20:53:20,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:53:20,854 INFO L225 Difference]: With dead ends: 260 [2022-11-02 20:53:20,854 INFO L226 Difference]: Without dead ends: 227 [2022-11-02 20:53:20,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=161, Invalid=2701, Unknown=0, NotChecked=0, Total=2862 [2022-11-02 20:53:20,856 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 99 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 550 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:53:20,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 1524 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 550 Unchecked, 0.2s Time] [2022-11-02 20:53:20,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-11-02 20:53:20,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 206. [2022-11-02 20:53:20,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 205 states have (on average 1.351219512195122) internal successors, (277), 205 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:20,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 277 transitions. [2022-11-02 20:53:20,868 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 277 transitions. Word has length 98 [2022-11-02 20:53:20,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:53:20,868 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 277 transitions. [2022-11-02 20:53:20,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 3.630434782608696) internal successors, (167), 46 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:20,869 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 277 transitions. [2022-11-02 20:53:20,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-02 20:53:20,870 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:53:20,870 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-02 20:53:20,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-02 20:53:21,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:53:21,092 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:53:21,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:21,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1526691953, now seen corresponding path program 2 times [2022-11-02 20:53:21,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:53:21,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [34250529] [2022-11-02 20:53:21,094 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:53:21,095 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:53:21,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:53:21,096 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:53:21,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-02 20:53:21,596 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:53:21,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:53:21,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 1481 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-02 20:53:21,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:53:21,984 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 24 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:53:21,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:53:22,331 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 24 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:53:22,331 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:53:22,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [34250529] [2022-11-02 20:53:22,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [34250529] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:53:22,332 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:53:22,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2022-11-02 20:53:22,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282859526] [2022-11-02 20:53:22,332 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:53:22,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-02 20:53:22,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:53:22,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-02 20:53:22,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2022-11-02 20:53:22,334 INFO L87 Difference]: Start difference. First operand 206 states and 277 transitions. Second operand has 19 states, 19 states have (on average 7.315789473684211) internal successors, (139), 19 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:24,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:53:24,465 INFO L93 Difference]: Finished difference Result 966 states and 1356 transitions. [2022-11-02 20:53:24,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-11-02 20:53:24,466 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.315789473684211) internal successors, (139), 19 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-11-02 20:53:24,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:53:24,469 INFO L225 Difference]: With dead ends: 966 [2022-11-02 20:53:24,470 INFO L226 Difference]: Without dead ends: 933 [2022-11-02 20:53:24,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1657 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1221, Invalid=4329, Unknown=0, NotChecked=0, Total=5550 [2022-11-02 20:53:24,474 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 2672 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2672 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:53:24,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2672 Valid, 984 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-02 20:53:24,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2022-11-02 20:53:24,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 437. [2022-11-02 20:53:24,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 436 states have (on average 1.4036697247706422) internal successors, (612), 436 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:24,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 612 transitions. [2022-11-02 20:53:24,503 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 612 transitions. Word has length 98 [2022-11-02 20:53:24,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:53:24,503 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 612 transitions. [2022-11-02 20:53:24,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.315789473684211) internal successors, (139), 19 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:24,504 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 612 transitions. [2022-11-02 20:53:24,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-02 20:53:24,505 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:53:24,506 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-02 20:53:24,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-02 20:53:24,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:53:24,728 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:53:24,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:24,728 INFO L85 PathProgramCache]: Analyzing trace with hash -2113497967, now seen corresponding path program 3 times [2022-11-02 20:53:24,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:53:24,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2111531183] [2022-11-02 20:53:24,729 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 20:53:24,729 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:53:24,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:53:24,730 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:53:24,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3d4f99-e66a-438b-bb22-3969e3e5601b/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-02 20:53:25,236 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-02 20:53:25,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:53:25,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 195 conjunts are in the unsatisfiable core [2022-11-02 20:53:25,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:53:39,388 WARN L234 SmtUtils]: Spent 10.46s on a formula simplification that was a NOOP. DAG size: 311 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-02 20:53:58,958 WARN L234 SmtUtils]: Spent 12.16s on a formula simplification that was a NOOP. DAG size: 311 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-02 20:54:18,947 WARN L234 SmtUtils]: Spent 10.38s on a formula simplification that was a NOOP. DAG size: 285 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-02 20:54:33,004 WARN L234 SmtUtils]: Spent 12.10s on a formula simplification that was a NOOP. DAG size: 301 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-02 20:54:44,746 WARN L234 SmtUtils]: Spent 10.41s on a formula simplification that was a NOOP. DAG size: 319 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-02 20:54:56,950 WARN L234 SmtUtils]: Spent 10.39s on a formula simplification that was a NOOP. DAG size: 312 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-02 20:55:21,341 WARN L234 SmtUtils]: Spent 10.40s on a formula simplification that was a NOOP. DAG size: 331 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)