./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench/prod4br-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench/prod4br-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9fc373a278835802938e4c08f2544f1651ce1de6dc177c0a58501e43687c477d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:30:28,541 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:30:28,638 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 06:30:28,642 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:30:28,643 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:30:28,666 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:30:28,666 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:30:28,667 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:30:28,667 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:30:28,669 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:30:28,670 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:30:28,671 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:30:28,671 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:30:28,671 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:30:28,672 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:30:28,672 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:30:28,672 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:30:28,672 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:30:28,675 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:30:28,676 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:30:28,676 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:30:28,676 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:30:28,677 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:30:28,677 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:30:28,678 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:30:28,678 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:30:28,678 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:30:28,679 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:30:28,679 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:30:28,679 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:30:28,680 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:30:28,680 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:30:28,680 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 06:30:28,681 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:30:28,681 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:30:28,681 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:30:28,681 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:30:28,682 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:30:28,682 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:30:28,682 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:30:28,683 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:30:28,683 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:30:28,683 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:30:28,684 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:30:28,684 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:30:28,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:30:28,684 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:30:28,685 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:30:28,685 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:30:28,685 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fc373a278835802938e4c08f2544f1651ce1de6dc177c0a58501e43687c477d [2024-11-09 06:30:28,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:30:28,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:30:28,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:30:28,985 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:30:28,985 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:30:28,986 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench/prod4br-ll.c Unable to find full path for "g++" [2024-11-09 06:30:31,090 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:30:31,307 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:30:31,307 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/sv-benchmarks/c/nla-digbench/prod4br-ll.c [2024-11-09 06:30:31,316 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/data/8955d59c8/9d64377cfe8045a39d0ef9ac686c7618/FLAG1bcbe81e3 [2024-11-09 06:30:31,695 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/data/8955d59c8/9d64377cfe8045a39d0ef9ac686c7618 [2024-11-09 06:30:31,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:30:31,698 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:30:31,700 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:30:31,700 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:30:31,709 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:30:31,709 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:30:31" (1/1) ... [2024-11-09 06:30:31,711 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3063d1b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:30:31, skipping insertion in model container [2024-11-09 06:30:31,711 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:30:31" (1/1) ... [2024-11-09 06:30:31,747 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:30:31,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:30:31,962 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:30:31,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:30:32,003 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:30:32,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:30:32 WrapperNode [2024-11-09 06:30:32,004 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:30:32,005 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:30:32,005 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:30:32,005 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:30:32,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:30:32" (1/1) ... [2024-11-09 06:30:32,018 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:30:32" (1/1) ... [2024-11-09 06:30:32,043 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 102 [2024-11-09 06:30:32,043 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:30:32,044 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:30:32,045 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:30:32,045 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:30:32,055 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:30:32" (1/1) ... [2024-11-09 06:30:32,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:30:32" (1/1) ... [2024-11-09 06:30:32,061 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:30:32" (1/1) ... [2024-11-09 06:30:32,061 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:30:32" (1/1) ... [2024-11-09 06:30:32,065 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:30:32" (1/1) ... [2024-11-09 06:30:32,069 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:30:32" (1/1) ... [2024-11-09 06:30:32,070 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:30:32" (1/1) ... [2024-11-09 06:30:32,071 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:30:32" (1/1) ... [2024-11-09 06:30:32,074 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:30:32,075 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:30:32,075 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:30:32,075 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:30:32,076 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:30:32" (1/1) ... [2024-11-09 06:30:32,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:30:32,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:30:32,115 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:30:32,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:30:32,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:30:32,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:30:32,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:30:32,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:30:32,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 06:30:32,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 06:30:32,202 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:30:32,204 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:30:32,673 INFO L? ?]: Removed 92 outVars from TransFormulas that were not future-live. [2024-11-09 06:30:32,673 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:30:32,757 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:30:32,757 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:30:32,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:30:32 BoogieIcfgContainer [2024-11-09 06:30:32,758 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:30:32,761 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:30:32,761 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:30:32,768 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:30:32,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:30:31" (1/3) ... [2024-11-09 06:30:32,769 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@579e13c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:30:32, skipping insertion in model container [2024-11-09 06:30:32,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:30:32" (2/3) ... [2024-11-09 06:30:32,771 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@579e13c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:30:32, skipping insertion in model container [2024-11-09 06:30:32,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:30:32" (3/3) ... [2024-11-09 06:30:32,773 INFO L112 eAbstractionObserver]: Analyzing ICFG prod4br-ll.c [2024-11-09 06:30:32,797 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:30:32,799 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-11-09 06:30:32,875 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:30:32,883 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@38be1823, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:30:32,883 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-11-09 06:30:32,888 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 50 states have (on average 1.94) internal successors, (97), 92 states have internal predecessors, (97), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 06:30:32,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 06:30:32,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:30:32,894 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 06:30:32,895 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:30:32,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:30:32,901 INFO L85 PathProgramCache]: Analyzing trace with hash 182174, now seen corresponding path program 1 times [2024-11-09 06:30:32,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:30:32,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910048834] [2024-11-09 06:30:32,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:32,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:30:33,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:30:33,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [370485757] [2024-11-09 06:30:33,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:33,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:30:33,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:30:33,035 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:30:33,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:30:33,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:30:33,108 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:30:33,115 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:30:33,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:30:33,229 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:30:33,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:30:33,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910048834] [2024-11-09 06:30:33,231 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:30:33,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370485757] [2024-11-09 06:30:33,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370485757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:30:33,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:30:33,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 06:30:33,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312732291] [2024-11-09 06:30:33,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:30:33,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:30:33,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:30:33,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:30:33,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:30:33,276 INFO L87 Difference]: Start difference. First operand has 97 states, 50 states have (on average 1.94) internal successors, (97), 92 states have internal predecessors, (97), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:30:33,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:30:33,689 INFO L93 Difference]: Finished difference Result 154 states and 178 transitions. [2024-11-09 06:30:33,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:30:33,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2024-11-09 06:30:33,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:30:33,705 INFO L225 Difference]: With dead ends: 154 [2024-11-09 06:30:33,705 INFO L226 Difference]: Without dead ends: 127 [2024-11-09 06:30:33,709 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:30:33,715 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 29 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:30:33,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 83 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:30:33,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-09 06:30:33,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 120. [2024-11-09 06:30:33,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 73 states have (on average 1.8082191780821917) internal successors, (132), 114 states have internal predecessors, (132), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:30:33,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 140 transitions. [2024-11-09 06:30:33,771 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 140 transitions. Word has length 3 [2024-11-09 06:30:33,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:30:33,772 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 140 transitions. [2024-11-09 06:30:33,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:30:33,772 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 140 transitions. [2024-11-09 06:30:33,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 06:30:33,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:30:33,773 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 06:30:33,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 06:30:33,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:30:33,974 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:30:33,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:30:33,975 INFO L85 PathProgramCache]: Analyzing trace with hash 5647445, now seen corresponding path program 1 times [2024-11-09 06:30:33,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:30:33,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553000700] [2024-11-09 06:30:33,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:33,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:30:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:30:33,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1748179958] [2024-11-09 06:30:33,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:33,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:30:33,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:30:33,995 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:30:33,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:30:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:30:34,051 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:30:34,052 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:30:34,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:30:34,124 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:30:34,125 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:30:34,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553000700] [2024-11-09 06:30:34,126 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:30:34,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748179958] [2024-11-09 06:30:34,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748179958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:30:34,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:30:34,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 06:30:34,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229574742] [2024-11-09 06:30:34,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:30:34,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:30:34,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:30:34,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:30:34,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:30:34,134 INFO L87 Difference]: Start difference. First operand 120 states and 140 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:30:34,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:30:34,516 INFO L93 Difference]: Finished difference Result 170 states and 208 transitions. [2024-11-09 06:30:34,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:30:34,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2024-11-09 06:30:34,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:30:34,518 INFO L225 Difference]: With dead ends: 170 [2024-11-09 06:30:34,518 INFO L226 Difference]: Without dead ends: 156 [2024-11-09 06:30:34,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:30:34,523 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 32 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:30:34,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 70 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:30:34,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-09 06:30:34,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 147. [2024-11-09 06:30:34,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 99 states have (on average 1.7676767676767677) internal successors, (175), 140 states have internal predecessors, (175), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 06:30:34,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 185 transitions. [2024-11-09 06:30:34,544 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 185 transitions. Word has length 4 [2024-11-09 06:30:34,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:30:34,544 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 185 transitions. [2024-11-09 06:30:34,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:30:34,545 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 185 transitions. [2024-11-09 06:30:34,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 06:30:34,545 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:30:34,545 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 06:30:34,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 06:30:34,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:30:34,746 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:30:34,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:30:34,747 INFO L85 PathProgramCache]: Analyzing trace with hash 175070848, now seen corresponding path program 1 times [2024-11-09 06:30:34,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:30:34,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010454128] [2024-11-09 06:30:34,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:34,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:30:34,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:30:34,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1818462510] [2024-11-09 06:30:34,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:34,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:30:34,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:30:34,776 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:30:34,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 06:30:34,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:30:34,824 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:30:34,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:30:34,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:30:34,929 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:30:34,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:30:34,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010454128] [2024-11-09 06:30:34,930 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:30:34,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818462510] [2024-11-09 06:30:34,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818462510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:30:34,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:30:34,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 06:30:34,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90105701] [2024-11-09 06:30:34,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:30:34,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:30:34,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:30:34,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:30:34,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:30:34,935 INFO L87 Difference]: Start difference. First operand 147 states and 185 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2024-11-09 06:30:35,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:30:35,170 INFO L93 Difference]: Finished difference Result 159 states and 192 transitions. [2024-11-09 06:30:35,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:30:35,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 [2024-11-09 06:30:35,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:30:35,172 INFO L225 Difference]: With dead ends: 159 [2024-11-09 06:30:35,172 INFO L226 Difference]: Without dead ends: 158 [2024-11-09 06:30:35,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:30:35,174 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 24 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:30:35,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 82 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:30:35,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-09 06:30:35,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 147. [2024-11-09 06:30:35,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 99 states have (on average 1.7575757575757576) internal successors, (174), 140 states have internal predecessors, (174), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 06:30:35,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 184 transitions. [2024-11-09 06:30:35,187 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 184 transitions. Word has length 5 [2024-11-09 06:30:35,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:30:35,187 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 184 transitions. [2024-11-09 06:30:35,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2024-11-09 06:30:35,188 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 184 transitions. [2024-11-09 06:30:35,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 06:30:35,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:30:35,188 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 06:30:35,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 06:30:35,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:30:35,389 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:30:35,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:30:35,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1132229047, now seen corresponding path program 1 times [2024-11-09 06:30:35,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:30:35,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483241443] [2024-11-09 06:30:35,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:35,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:30:35,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:30:35,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [879989497] [2024-11-09 06:30:35,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:35,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:30:35,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:30:35,418 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:30:35,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 06:30:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:30:35,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:30:35,464 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:30:35,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:30:35,546 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:30:35,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:30:35,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483241443] [2024-11-09 06:30:35,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:30:35,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879989497] [2024-11-09 06:30:35,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879989497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:30:35,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:30:35,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 06:30:35,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360432192] [2024-11-09 06:30:35,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:30:35,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:30:35,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:30:35,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:30:35,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:30:35,549 INFO L87 Difference]: Start difference. First operand 147 states and 184 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:30:35,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:30:35,909 INFO L93 Difference]: Finished difference Result 154 states and 184 transitions. [2024-11-09 06:30:35,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:30:35,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2024-11-09 06:30:35,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:30:35,911 INFO L225 Difference]: With dead ends: 154 [2024-11-09 06:30:35,911 INFO L226 Difference]: Without dead ends: 151 [2024-11-09 06:30:35,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:30:35,912 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 29 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:30:35,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 73 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:30:35,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-09 06:30:35,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 147. [2024-11-09 06:30:35,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 99 states have (on average 1.7171717171717171) internal successors, (170), 140 states have internal predecessors, (170), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 06:30:35,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 180 transitions. [2024-11-09 06:30:35,925 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 180 transitions. Word has length 6 [2024-11-09 06:30:35,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:30:35,925 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 180 transitions. [2024-11-09 06:30:35,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:30:35,926 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 180 transitions. [2024-11-09 06:30:35,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 06:30:35,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:30:35,926 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:30:35,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 06:30:36,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:30:36,130 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:30:36,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:30:36,131 INFO L85 PathProgramCache]: Analyzing trace with hash 739362146, now seen corresponding path program 1 times [2024-11-09 06:30:36,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:30:36,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875443231] [2024-11-09 06:30:36,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:36,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:30:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:30:36,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:30:36,272 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:30:36,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875443231] [2024-11-09 06:30:36,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875443231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:30:36,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:30:36,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:30:36,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860687267] [2024-11-09 06:30:36,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:30:36,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:30:36,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:30:36,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:30:36,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:30:36,275 INFO L87 Difference]: Start difference. First operand 147 states and 180 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:30:37,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:30:37,679 INFO L93 Difference]: Finished difference Result 244 states and 291 transitions. [2024-11-09 06:30:37,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:30:37,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2024-11-09 06:30:37,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:30:37,681 INFO L225 Difference]: With dead ends: 244 [2024-11-09 06:30:37,681 INFO L226 Difference]: Without dead ends: 243 [2024-11-09 06:30:37,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:30:37,682 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 104 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:30:37,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 126 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 06:30:37,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-11-09 06:30:37,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 168. [2024-11-09 06:30:37,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 119 states have (on average 1.7142857142857142) internal successors, (204), 160 states have internal predecessors, (204), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 06:30:37,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 216 transitions. [2024-11-09 06:30:37,716 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 216 transitions. Word has length 7 [2024-11-09 06:30:37,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:30:37,716 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 216 transitions. [2024-11-09 06:30:37,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:30:37,717 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 216 transitions. [2024-11-09 06:30:37,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 06:30:37,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:30:37,717 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:30:37,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:30:37,718 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:30:37,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:30:37,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1445390105, now seen corresponding path program 1 times [2024-11-09 06:30:37,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:30:37,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441513845] [2024-11-09 06:30:37,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:37,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:30:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:30:38,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:30:38,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:30:38,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441513845] [2024-11-09 06:30:38,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441513845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:30:38,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:30:38,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:30:38,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497476695] [2024-11-09 06:30:38,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:30:38,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:30:38,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:30:38,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:30:38,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:30:38,100 INFO L87 Difference]: Start difference. First operand 168 states and 216 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:30:39,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:30:39,547 INFO L93 Difference]: Finished difference Result 244 states and 289 transitions. [2024-11-09 06:30:39,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:30:39,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2024-11-09 06:30:39,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:30:39,549 INFO L225 Difference]: With dead ends: 244 [2024-11-09 06:30:39,549 INFO L226 Difference]: Without dead ends: 243 [2024-11-09 06:30:39,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:30:39,551 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 103 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:30:39,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 124 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 06:30:39,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-11-09 06:30:39,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 168. [2024-11-09 06:30:39,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 119 states have (on average 1.6974789915966386) internal successors, (202), 160 states have internal predecessors, (202), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 06:30:39,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 214 transitions. [2024-11-09 06:30:39,564 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 214 transitions. Word has length 8 [2024-11-09 06:30:39,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:30:39,565 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 214 transitions. [2024-11-09 06:30:39,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:30:39,565 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 214 transitions. [2024-11-09 06:30:39,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 06:30:39,566 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:30:39,566 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:30:39,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:30:39,566 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:30:39,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:30:39,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1857420356, now seen corresponding path program 1 times [2024-11-09 06:30:39,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:30:39,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911500908] [2024-11-09 06:30:39,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:39,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:30:39,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:30:39,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [999551316] [2024-11-09 06:30:39,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:39,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:30:39,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:30:39,581 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:30:39,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 06:30:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:30:39,626 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:30:39,627 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:30:39,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:30:39,693 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:30:39,693 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:30:39,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911500908] [2024-11-09 06:30:39,693 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:30:39,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999551316] [2024-11-09 06:30:39,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999551316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:30:39,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:30:39,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 06:30:39,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585730942] [2024-11-09 06:30:39,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:30:39,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:30:39,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:30:39,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:30:39,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:30:39,696 INFO L87 Difference]: Start difference. First operand 168 states and 214 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:30:39,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:30:39,720 INFO L93 Difference]: Finished difference Result 168 states and 214 transitions. [2024-11-09 06:30:39,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:30:39,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2024-11-09 06:30:39,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:30:39,722 INFO L225 Difference]: With dead ends: 168 [2024-11-09 06:30:39,722 INFO L226 Difference]: Without dead ends: 166 [2024-11-09 06:30:39,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:30:39,725 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 81 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:30:39,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 90 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:30:39,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-09 06:30:39,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2024-11-09 06:30:39,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 119 states have (on average 1.638655462184874) internal successors, (195), 158 states have internal predecessors, (195), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 06:30:39,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 207 transitions. [2024-11-09 06:30:39,746 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 207 transitions. Word has length 9 [2024-11-09 06:30:39,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:30:39,746 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 207 transitions. [2024-11-09 06:30:39,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:30:39,747 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 207 transitions. [2024-11-09 06:30:39,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 06:30:39,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:30:39,747 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:30:39,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 06:30:39,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:30:39,949 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:30:39,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:30:39,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1745456251, now seen corresponding path program 1 times [2024-11-09 06:30:39,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:30:39,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115268181] [2024-11-09 06:30:39,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:39,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:30:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:30:39,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1800827561] [2024-11-09 06:30:39,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:39,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:30:39,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:30:39,962 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:30:39,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 06:30:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:30:40,001 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:30:40,002 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:30:40,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:30:40,076 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:30:40,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:30:40,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115268181] [2024-11-09 06:30:40,077 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:30:40,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800827561] [2024-11-09 06:30:40,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800827561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:30:40,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:30:40,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 06:30:40,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201017363] [2024-11-09 06:30:40,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:30:40,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:30:40,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:30:40,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:30:40,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:30:40,080 INFO L87 Difference]: Start difference. First operand 166 states and 207 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:30:40,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:30:40,098 INFO L93 Difference]: Finished difference Result 166 states and 207 transitions. [2024-11-09 06:30:40,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:30:40,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2024-11-09 06:30:40,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:30:40,100 INFO L225 Difference]: With dead ends: 166 [2024-11-09 06:30:40,100 INFO L226 Difference]: Without dead ends: 162 [2024-11-09 06:30:40,101 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:30:40,102 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 80 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:30:40,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 90 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:30:40,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-09 06:30:40,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2024-11-09 06:30:40,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 117 states have (on average 1.5897435897435896) internal successors, (186), 154 states have internal predecessors, (186), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 06:30:40,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 198 transitions. [2024-11-09 06:30:40,113 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 198 transitions. Word has length 10 [2024-11-09 06:30:40,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:30:40,113 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 198 transitions. [2024-11-09 06:30:40,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:30:40,113 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 198 transitions. [2024-11-09 06:30:40,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 06:30:40,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:30:40,114 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:30:40,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 06:30:40,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:30:40,315 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:30:40,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:30:40,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1016143274, now seen corresponding path program 1 times [2024-11-09 06:30:40,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:30:40,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280024298] [2024-11-09 06:30:40,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:40,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:30:40,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:30:40,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [959245048] [2024-11-09 06:30:40,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:40,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:30:40,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:30:40,363 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:30:40,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 06:30:40,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:30:40,427 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:30:40,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:30:40,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:30:40,546 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:30:40,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:30:40,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280024298] [2024-11-09 06:30:40,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:30:40,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959245048] [2024-11-09 06:30:40,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959245048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:30:40,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:30:40,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:30:40,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491899213] [2024-11-09 06:30:40,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:30:40,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:30:40,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:30:40,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:30:40,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:30:40,551 INFO L87 Difference]: Start difference. First operand 162 states and 198 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:30:40,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:30:40,939 INFO L93 Difference]: Finished difference Result 213 states and 270 transitions. [2024-11-09 06:30:40,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:30:40,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2024-11-09 06:30:40,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:30:40,941 INFO L225 Difference]: With dead ends: 213 [2024-11-09 06:30:40,941 INFO L226 Difference]: Without dead ends: 207 [2024-11-09 06:30:40,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:30:40,942 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 21 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:30:40,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 92 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:30:40,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-09 06:30:40,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 194. [2024-11-09 06:30:40,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 148 states have (on average 1.587837837837838) internal successors, (235), 185 states have internal predecessors, (235), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 06:30:40,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 249 transitions. [2024-11-09 06:30:40,976 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 249 transitions. Word has length 20 [2024-11-09 06:30:40,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:30:40,977 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 249 transitions. [2024-11-09 06:30:40,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:30:40,977 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 249 transitions. [2024-11-09 06:30:40,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 06:30:40,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:30:40,980 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:30:41,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 06:30:41,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:30:41,184 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:30:41,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:30:41,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1435670308, now seen corresponding path program 1 times [2024-11-09 06:30:41,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:30:41,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608135746] [2024-11-09 06:30:41,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:41,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:30:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:30:41,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [223151913] [2024-11-09 06:30:41,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:41,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:30:41,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:30:41,218 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:30:41,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 06:30:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:30:41,276 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:30:41,277 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:30:41,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:30:41,379 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:30:41,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:30:41,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608135746] [2024-11-09 06:30:41,381 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:30:41,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223151913] [2024-11-09 06:30:41,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223151913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:30:41,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:30:41,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:30:41,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630054323] [2024-11-09 06:30:41,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:30:41,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:30:41,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:30:41,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:30:41,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:30:41,387 INFO L87 Difference]: Start difference. First operand 194 states and 249 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:30:41,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:30:41,799 INFO L93 Difference]: Finished difference Result 255 states and 341 transitions. [2024-11-09 06:30:41,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:30:41,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-11-09 06:30:41,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:30:41,802 INFO L225 Difference]: With dead ends: 255 [2024-11-09 06:30:41,802 INFO L226 Difference]: Without dead ends: 249 [2024-11-09 06:30:41,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:30:41,803 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 36 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:30:41,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 52 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:30:41,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-09 06:30:41,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 233. [2024-11-09 06:30:41,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 186 states have (on average 1.6290322580645162) internal successors, (303), 223 states have internal predecessors, (303), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:30:41,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 319 transitions. [2024-11-09 06:30:41,816 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 319 transitions. Word has length 21 [2024-11-09 06:30:41,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:30:41,816 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 319 transitions. [2024-11-09 06:30:41,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:30:41,817 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 319 transitions. [2024-11-09 06:30:41,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 06:30:41,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:30:41,817 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:30:41,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 06:30:42,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:30:42,018 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:30:42,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:30:42,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1850792997, now seen corresponding path program 1 times [2024-11-09 06:30:42,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:30:42,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451500304] [2024-11-09 06:30:42,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:42,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:30:42,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:30:42,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:30:42,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:30:42,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451500304] [2024-11-09 06:30:42,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451500304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:30:42,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:30:42,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:30:42,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822432515] [2024-11-09 06:30:42,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:30:42,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:30:42,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:30:42,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:30:42,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:30:42,147 INFO L87 Difference]: Start difference. First operand 233 states and 319 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:30:42,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:30:42,904 INFO L93 Difference]: Finished difference Result 315 states and 410 transitions. [2024-11-09 06:30:42,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:30:42,905 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-11-09 06:30:42,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:30:42,906 INFO L225 Difference]: With dead ends: 315 [2024-11-09 06:30:42,907 INFO L226 Difference]: Without dead ends: 314 [2024-11-09 06:30:42,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:30:42,908 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 90 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:30:42,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 187 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 06:30:42,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-09 06:30:42,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 243. [2024-11-09 06:30:42,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 196 states have (on average 1.6224489795918366) internal successors, (318), 233 states have internal predecessors, (318), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:30:42,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 334 transitions. [2024-11-09 06:30:42,921 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 334 transitions. Word has length 21 [2024-11-09 06:30:42,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:30:42,921 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 334 transitions. [2024-11-09 06:30:42,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:30:42,921 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 334 transitions. [2024-11-09 06:30:42,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 06:30:42,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:30:42,922 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:30:42,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 06:30:42,923 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:30:42,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:30:42,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1141938088, now seen corresponding path program 1 times [2024-11-09 06:30:42,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:30:42,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083357710] [2024-11-09 06:30:42,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:42,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:30:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:30:43,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:30:43,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:30:43,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083357710] [2024-11-09 06:30:43,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083357710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:30:43,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:30:43,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:30:43,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26435765] [2024-11-09 06:30:43,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:30:43,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:30:43,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:30:43,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:30:43,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:30:43,083 INFO L87 Difference]: Start difference. First operand 243 states and 334 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:30:44,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:30:44,149 INFO L93 Difference]: Finished difference Result 318 states and 459 transitions. [2024-11-09 06:30:44,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:30:44,149 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2024-11-09 06:30:44,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:30:44,151 INFO L225 Difference]: With dead ends: 318 [2024-11-09 06:30:44,151 INFO L226 Difference]: Without dead ends: 316 [2024-11-09 06:30:44,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:30:44,152 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 78 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:30:44,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 95 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 06:30:44,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-11-09 06:30:44,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 249. [2024-11-09 06:30:44,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 202 states have (on average 1.608910891089109) internal successors, (325), 239 states have internal predecessors, (325), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:30:44,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 341 transitions. [2024-11-09 06:30:44,166 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 341 transitions. Word has length 22 [2024-11-09 06:30:44,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:30:44,166 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 341 transitions. [2024-11-09 06:30:44,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:30:44,166 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 341 transitions. [2024-11-09 06:30:44,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 06:30:44,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:30:44,167 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:30:44,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 06:30:44,168 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:30:44,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:30:44,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1556106472, now seen corresponding path program 1 times [2024-11-09 06:30:44,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:30:44,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691930701] [2024-11-09 06:30:44,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:44,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:30:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:30:44,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:30:44,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:30:44,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691930701] [2024-11-09 06:30:44,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691930701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:30:44,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:30:44,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:30:44,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150952045] [2024-11-09 06:30:44,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:30:44,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:30:44,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:30:44,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:30:44,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:30:44,285 INFO L87 Difference]: Start difference. First operand 249 states and 341 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:30:45,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:30:45,032 INFO L93 Difference]: Finished difference Result 315 states and 406 transitions. [2024-11-09 06:30:45,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:30:45,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2024-11-09 06:30:45,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:30:45,034 INFO L225 Difference]: With dead ends: 315 [2024-11-09 06:30:45,035 INFO L226 Difference]: Without dead ends: 314 [2024-11-09 06:30:45,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:30:45,036 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 98 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:30:45,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 170 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 06:30:45,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-09 06:30:45,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 258. [2024-11-09 06:30:45,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 211 states have (on average 1.6066350710900474) internal successors, (339), 248 states have internal predecessors, (339), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:30:45,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 355 transitions. [2024-11-09 06:30:45,049 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 355 transitions. Word has length 22 [2024-11-09 06:30:45,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:30:45,049 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 355 transitions. [2024-11-09 06:30:45,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:30:45,050 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 355 transitions. [2024-11-09 06:30:45,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 06:30:45,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:30:45,051 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:30:45,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 06:30:45,051 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:30:45,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:30:45,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1540007958, now seen corresponding path program 1 times [2024-11-09 06:30:45,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:30:45,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861396482] [2024-11-09 06:30:45,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:45,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:30:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:30:45,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:30:45,143 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:30:45,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861396482] [2024-11-09 06:30:45,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861396482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:30:45,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:30:45,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:30:45,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431568737] [2024-11-09 06:30:45,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:30:45,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:30:45,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:30:45,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:30:45,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:30:45,145 INFO L87 Difference]: Start difference. First operand 258 states and 355 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:30:46,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:30:46,397 INFO L93 Difference]: Finished difference Result 315 states and 404 transitions. [2024-11-09 06:30:46,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:30:46,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2024-11-09 06:30:46,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:30:46,399 INFO L225 Difference]: With dead ends: 315 [2024-11-09 06:30:46,399 INFO L226 Difference]: Without dead ends: 314 [2024-11-09 06:30:46,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:30:46,401 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 103 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:30:46,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 168 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 06:30:46,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-09 06:30:46,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 260. [2024-11-09 06:30:46,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 213 states have (on average 1.6009389671361502) internal successors, (341), 250 states have internal predecessors, (341), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:30:46,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 357 transitions. [2024-11-09 06:30:46,414 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 357 transitions. Word has length 22 [2024-11-09 06:30:46,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:30:46,414 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 357 transitions. [2024-11-09 06:30:46,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:30:46,415 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 357 transitions. [2024-11-09 06:30:46,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 06:30:46,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:30:46,415 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:30:46,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 06:30:46,416 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:30:46,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:30:46,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1040342228, now seen corresponding path program 1 times [2024-11-09 06:30:46,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:30:46,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171932344] [2024-11-09 06:30:46,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:46,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:30:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:30:46,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:30:46,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:30:46,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171932344] [2024-11-09 06:30:46,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171932344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:30:46,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:30:46,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:30:46,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796547472] [2024-11-09 06:30:46,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:30:46,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:30:46,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:30:46,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:30:46,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:30:46,538 INFO L87 Difference]: Start difference. First operand 260 states and 357 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:30:47,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:30:47,639 INFO L93 Difference]: Finished difference Result 267 states and 364 transitions. [2024-11-09 06:30:47,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:30:47,640 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2024-11-09 06:30:47,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:30:47,641 INFO L225 Difference]: With dead ends: 267 [2024-11-09 06:30:47,641 INFO L226 Difference]: Without dead ends: 265 [2024-11-09 06:30:47,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:30:47,642 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 160 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:30:47,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 81 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 06:30:47,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-09 06:30:47,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 260. [2024-11-09 06:30:47,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 213 states have (on average 1.5868544600938967) internal successors, (338), 250 states have internal predecessors, (338), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:30:47,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 354 transitions. [2024-11-09 06:30:47,656 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 354 transitions. Word has length 23 [2024-11-09 06:30:47,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:30:47,657 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 354 transitions. [2024-11-09 06:30:47,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:30:47,657 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 354 transitions. [2024-11-09 06:30:47,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 06:30:47,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:30:47,658 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:30:47,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 06:30:47,658 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:30:47,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:30:47,659 INFO L85 PathProgramCache]: Analyzing trace with hash -994660258, now seen corresponding path program 1 times [2024-11-09 06:30:47,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:30:47,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581461962] [2024-11-09 06:30:47,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:47,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:30:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:30:47,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:30:47,789 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:30:47,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581461962] [2024-11-09 06:30:47,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581461962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:30:47,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:30:47,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:30:47,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260342002] [2024-11-09 06:30:47,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:30:47,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:30:47,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:30:47,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:30:47,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:30:47,791 INFO L87 Difference]: Start difference. First operand 260 states and 354 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:30:49,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:30:49,122 INFO L93 Difference]: Finished difference Result 315 states and 398 transitions. [2024-11-09 06:30:49,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:30:49,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2024-11-09 06:30:49,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:30:49,124 INFO L225 Difference]: With dead ends: 315 [2024-11-09 06:30:49,124 INFO L226 Difference]: Without dead ends: 314 [2024-11-09 06:30:49,125 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:30:49,125 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 97 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:30:49,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 177 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 06:30:49,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-09 06:30:49,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 262. [2024-11-09 06:30:49,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 215 states have (on average 1.5813953488372092) internal successors, (340), 252 states have internal predecessors, (340), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:30:49,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 356 transitions. [2024-11-09 06:30:49,140 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 356 transitions. Word has length 23 [2024-11-09 06:30:49,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:30:49,141 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 356 transitions. [2024-11-09 06:30:49,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:30:49,141 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 356 transitions. [2024-11-09 06:30:49,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 06:30:49,142 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:30:49,142 INFO L215 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] [2024-11-09 06:30:49,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 06:30:49,142 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:30:49,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:30:49,142 INFO L85 PathProgramCache]: Analyzing trace with hash 2090161999, now seen corresponding path program 1 times [2024-11-09 06:30:49,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:30:49,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659639951] [2024-11-09 06:30:49,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:49,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:30:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:30:49,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1688593753] [2024-11-09 06:30:49,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:49,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:30:49,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:30:49,180 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:30:49,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 06:30:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:30:49,235 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 06:30:49,237 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:30:50,241 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:30:50,241 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:30:52,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:30:52,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:30:52,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659639951] [2024-11-09 06:30:52,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:30:52,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688593753] [2024-11-09 06:30:52,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688593753] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:30:52,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1750356039] [2024-11-09 06:30:52,145 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 06:30:52,146 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:30:52,149 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:30:52,155 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:30:52,155 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:30:55,274 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 77 for LOIs [2024-11-09 06:30:55,308 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:31:01,824 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1_89| Int)) (let ((.cse4 (+ |v_ULTIMATE.start_main_~a~0#1_89| 1)) (.cse5 (= (mod |v_ULTIMATE.start_main_~a~0#1_89| 2) 0))) (let ((.cse1 (or (< 0 .cse4) .cse5)) (.cse2 (not .cse5)) (.cse3 (<= .cse4 0)) (.cse0 (div |v_ULTIMATE.start_main_~a~0#1_89| 2))) (and (or (and (<= .cse0 9223372036854775807) .cse1) (and .cse2 .cse3 (<= .cse0 9223372036854775806))) (or (and .cse2 .cse3 (= |c_ULTIMATE.start_main_~a~0#1| (+ .cse0 1))) (and (= |c_ULTIMATE.start_main_~a~0#1| .cse0) .cse1)) (or (and (<= 0 (+ 9223372036854775808 .cse0)) .cse1) (and .cse2 .cse3 (<= 0 (+ 9223372036854775809 .cse0)))))))) is different from true [2024-11-09 06:31:24,224 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7923#(exists ((|v_ULTIMATE.start_main_~b~0#1_90| Int) (|v_ULTIMATE.start_main_~a~0#1_90| Int)) (and (= (mod |ULTIMATE.start_main_~p~0#1| 4) 0) (<= 0 (+ (div |ULTIMATE.start_main_~p~0#1| 4) 2305843009213693952)) (<= (div |ULTIMATE.start_main_~p~0#1| 4) 2305843009213693951) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~b~0#1_90| |v_ULTIMATE.start_main_~a~0#1_90|)) 0)))' at error location [2024-11-09 06:31:24,224 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:31:24,224 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:31:24,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2024-11-09 06:31:24,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671243538] [2024-11-09 06:31:24,225 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 06:31:24,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:31:24,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:31:24,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:31:24,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=675, Unknown=9, NotChecked=54, Total=870 [2024-11-09 06:31:24,227 INFO L87 Difference]: Start difference. First operand 262 states and 356 transitions. Second operand has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 13 states have internal predecessors, (41), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:31:38,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:31:38,750 INFO L93 Difference]: Finished difference Result 485 states and 702 transitions. [2024-11-09 06:31:38,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 06:31:38,751 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 13 states have internal predecessors, (41), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2024-11-09 06:31:38,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:31:38,754 INFO L225 Difference]: With dead ends: 485 [2024-11-09 06:31:38,754 INFO L226 Difference]: Without dead ends: 463 [2024-11-09 06:31:38,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 478 ImplicationChecksByTransitivity, 39.4s TimeCoverageRelationStatistics Valid=318, Invalid=1312, Unknown=14, NotChecked=78, Total=1722 [2024-11-09 06:31:38,756 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 274 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:31:38,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 70 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-09 06:31:38,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-11-09 06:31:38,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 317. [2024-11-09 06:31:38,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 271 states have (on average 1.5313653136531364) internal successors, (415), 306 states have internal predecessors, (415), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 06:31:38,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 433 transitions. [2024-11-09 06:31:38,790 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 433 transitions. Word has length 23 [2024-11-09 06:31:38,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:31:38,791 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 433 transitions. [2024-11-09 06:31:38,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 13 states have internal predecessors, (41), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:31:38,791 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 433 transitions. [2024-11-09 06:31:38,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 06:31:38,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:31:38,794 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:31:38,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 06:31:38,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-09 06:31:38,995 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:31:38,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:31:38,996 INFO L85 PathProgramCache]: Analyzing trace with hash 370512580, now seen corresponding path program 1 times [2024-11-09 06:31:38,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:31:38,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81132603] [2024-11-09 06:31:38,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:31:38,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:31:39,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:31:39,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [732073817] [2024-11-09 06:31:39,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:31:39,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:31:39,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:31:39,030 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:31:39,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 06:31:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:31:39,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 06:31:39,091 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:31:39,676 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:31:39,676 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:31:41,616 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:31:41,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:31:41,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81132603] [2024-11-09 06:31:41,617 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:31:41,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732073817] [2024-11-09 06:31:41,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732073817] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:31:41,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [436561823] [2024-11-09 06:31:41,619 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 06:31:41,619 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:31:41,620 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:31:41,620 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:31:41,620 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:31:44,024 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 77 for LOIs [2024-11-09 06:31:44,064 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:31:52,367 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1_96| Int)) (let ((.cse5 (= (mod |v_ULTIMATE.start_main_~a~0#1_96| 2) 0)) (.cse4 (+ |v_ULTIMATE.start_main_~a~0#1_96| 1))) (let ((.cse3 (or .cse5 (< 0 .cse4))) (.cse0 (not .cse5)) (.cse2 (div |v_ULTIMATE.start_main_~a~0#1_96| 2)) (.cse1 (<= .cse4 0))) (and (or (and .cse0 .cse1 (= (+ .cse2 1) |c_ULTIMATE.start_main_~a~0#1|)) (and .cse3 (= |c_ULTIMATE.start_main_~a~0#1| .cse2))) (or (and (<= .cse2 9223372036854775806) .cse0 .cse1) (and (<= .cse2 9223372036854775807) .cse3)) (or (and .cse3 (<= 0 (+ 9223372036854775808 .cse2))) (and .cse0 (<= 0 (+ 9223372036854775809 .cse2)) .cse1)))))) is different from true [2024-11-09 06:32:07,785 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8977#(exists ((|v_ULTIMATE.start_main_~a~0#1_97| Int) (|v_ULTIMATE.start_main_~b~0#1_97| Int)) (and (= (mod |ULTIMATE.start_main_~p~0#1| 4) 0) (<= 0 (+ (div |ULTIMATE.start_main_~p~0#1| 4) 2305843009213693952)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~b~0#1_97| |v_ULTIMATE.start_main_~a~0#1_97|)) (<= (div |ULTIMATE.start_main_~p~0#1| 4) 2305843009213693951)))' at error location [2024-11-09 06:32:07,785 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:32:07,785 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:32:07,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2024-11-09 06:32:07,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517416156] [2024-11-09 06:32:07,785 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 06:32:07,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:32:07,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:32:07,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:32:07,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=685, Unknown=8, NotChecked=54, Total=870 [2024-11-09 06:32:07,787 INFO L87 Difference]: Start difference. First operand 317 states and 433 transitions. Second operand has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 13 states have internal predecessors, (43), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:32:14,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-09 06:32:18,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:32:18,653 INFO L93 Difference]: Finished difference Result 470 states and 665 transitions. [2024-11-09 06:32:18,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 06:32:18,653 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 13 states have internal predecessors, (43), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2024-11-09 06:32:18,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:32:18,655 INFO L225 Difference]: With dead ends: 470 [2024-11-09 06:32:18,655 INFO L226 Difference]: Without dead ends: 450 [2024-11-09 06:32:18,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 25.7s TimeCoverageRelationStatistics Valid=268, Invalid=1210, Unknown=8, NotChecked=74, Total=1560 [2024-11-09 06:32:18,657 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 214 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:32:18,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 112 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 900 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2024-11-09 06:32:18,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-09 06:32:18,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 334. [2024-11-09 06:32:18,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 290 states have (on average 1.506896551724138) internal successors, (437), 324 states have internal predecessors, (437), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:32:18,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 453 transitions. [2024-11-09 06:32:18,686 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 453 transitions. Word has length 24 [2024-11-09 06:32:18,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:32:18,686 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 453 transitions. [2024-11-09 06:32:18,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 13 states have internal predecessors, (43), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:32:18,686 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 453 transitions. [2024-11-09 06:32:18,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 06:32:18,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:32:18,687 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:32:18,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-09 06:32:18,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 06:32:18,891 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:32:18,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:32:18,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1399011855, now seen corresponding path program 1 times [2024-11-09 06:32:18,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:32:18,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536476700] [2024-11-09 06:32:18,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:32:18,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:32:18,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:32:18,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1231686700] [2024-11-09 06:32:18,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:32:18,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:32:18,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:32:18,909 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:32:18,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 06:32:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:32:18,968 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 06:32:18,970 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:32:19,454 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:32:19,454 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:32:22,704 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:32:22,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:32:22,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536476700] [2024-11-09 06:32:22,704 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:32:22,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231686700] [2024-11-09 06:32:22,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231686700] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:32:22,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:32:22,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-11-09 06:32:22,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857397639] [2024-11-09 06:32:22,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:32:22,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:32:22,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:32:22,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:32:22,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2024-11-09 06:32:22,706 INFO L87 Difference]: Start difference. First operand 334 states and 453 transitions. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:32:28,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:32:28,927 INFO L93 Difference]: Finished difference Result 343 states and 463 transitions. [2024-11-09 06:32:28,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:32:28,928 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-09 06:32:28,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:32:28,929 INFO L225 Difference]: With dead ends: 343 [2024-11-09 06:32:28,929 INFO L226 Difference]: Without dead ends: 342 [2024-11-09 06:32:28,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:32:28,931 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 94 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:32:28,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 48 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-11-09 06:32:28,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-11-09 06:32:28,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 338. [2024-11-09 06:32:28,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 294 states have (on average 1.4931972789115646) internal successors, (439), 328 states have internal predecessors, (439), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:32:28,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 455 transitions. [2024-11-09 06:32:28,962 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 455 transitions. Word has length 25 [2024-11-09 06:32:28,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:32:28,963 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 455 transitions. [2024-11-09 06:32:28,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:32:28,963 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 455 transitions. [2024-11-09 06:32:28,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 06:32:28,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:32:28,964 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 06:32:28,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-09 06:32:29,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:32:29,168 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:32:29,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:32:29,169 INFO L85 PathProgramCache]: Analyzing trace with hash -351173284, now seen corresponding path program 1 times [2024-11-09 06:32:29,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:32:29,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346164341] [2024-11-09 06:32:29,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:32:29,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:32:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:32:29,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [626036817] [2024-11-09 06:32:29,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:32:29,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:32:29,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:32:29,190 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:32:29,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 06:32:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:32:29,239 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:32:29,241 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:32:29,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:32:29,473 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:32:29,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:32:29,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346164341] [2024-11-09 06:32:29,474 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:32:29,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626036817] [2024-11-09 06:32:29,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626036817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:32:29,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:32:29,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:32:29,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243179714] [2024-11-09 06:32:29,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:32:29,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:32:29,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:32:29,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:32:29,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:32:29,476 INFO L87 Difference]: Start difference. First operand 338 states and 455 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:32:30,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:32:30,151 INFO L93 Difference]: Finished difference Result 397 states and 540 transitions. [2024-11-09 06:32:30,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:32:30,151 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-11-09 06:32:30,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:32:30,153 INFO L225 Difference]: With dead ends: 397 [2024-11-09 06:32:30,153 INFO L226 Difference]: Without dead ends: 390 [2024-11-09 06:32:30,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:32:30,154 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 52 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:32:30,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 40 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 06:32:30,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-11-09 06:32:30,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 355. [2024-11-09 06:32:30,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 311 states have (on average 1.4919614147909968) internal successors, (464), 345 states have internal predecessors, (464), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:32:30,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 480 transitions. [2024-11-09 06:32:30,185 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 480 transitions. Word has length 26 [2024-11-09 06:32:30,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:32:30,185 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 480 transitions. [2024-11-09 06:32:30,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:32:30,185 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 480 transitions. [2024-11-09 06:32:30,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 06:32:30,186 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:32:30,186 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:32:30,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-09 06:32:30,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:32:30,390 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:32:30,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:32:30,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1487498926, now seen corresponding path program 1 times [2024-11-09 06:32:30,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:32:30,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037427198] [2024-11-09 06:32:30,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:32:30,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:32:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:32:30,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1272480588] [2024-11-09 06:32:30,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:32:30,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:32:30,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:32:30,409 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:32:30,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 06:32:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:32:30,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:32:30,464 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:32:30,687 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:32:30,687 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:32:30,688 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:32:30,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037427198] [2024-11-09 06:32:30,688 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:32:30,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272480588] [2024-11-09 06:32:30,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1272480588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:32:30,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:32:30,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:32:30,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395087238] [2024-11-09 06:32:30,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:32:30,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:32:30,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:32:30,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:32:30,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:32:30,690 INFO L87 Difference]: Start difference. First operand 355 states and 480 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:32:31,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:32:31,251 INFO L93 Difference]: Finished difference Result 356 states and 480 transitions. [2024-11-09 06:32:31,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:32:31,251 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-11-09 06:32:31,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:32:31,253 INFO L225 Difference]: With dead ends: 356 [2024-11-09 06:32:31,253 INFO L226 Difference]: Without dead ends: 355 [2024-11-09 06:32:31,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:32:31,254 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 35 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:32:31,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 89 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:32:31,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-09 06:32:31,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2024-11-09 06:32:31,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 311 states have (on average 1.4887459807073955) internal successors, (463), 345 states have internal predecessors, (463), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:32:31,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 479 transitions. [2024-11-09 06:32:31,290 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 479 transitions. Word has length 26 [2024-11-09 06:32:31,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:32:31,290 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 479 transitions. [2024-11-09 06:32:31,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:32:31,291 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 479 transitions. [2024-11-09 06:32:31,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 06:32:31,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:32:31,291 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:32:31,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-09 06:32:31,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:32:31,492 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:32:31,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:32:31,493 INFO L85 PathProgramCache]: Analyzing trace with hash -419694490, now seen corresponding path program 1 times [2024-11-09 06:32:31,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:32:31,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623869984] [2024-11-09 06:32:31,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:32:31,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:32:31,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:32:31,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [60627158] [2024-11-09 06:32:31,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:32:31,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:32:31,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:32:31,517 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:32:31,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 06:32:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:32:31,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 06:32:31,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:32:32,045 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:32:32,046 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:32:34,119 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:32:34,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:32:34,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623869984] [2024-11-09 06:32:34,119 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:32:34,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60627158] [2024-11-09 06:32:34,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60627158] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:32:34,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:32:34,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-11-09 06:32:34,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244312347] [2024-11-09 06:32:34,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:32:34,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:32:34,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:32:34,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:32:34,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2024-11-09 06:32:34,121 INFO L87 Difference]: Start difference. First operand 355 states and 479 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:32:36,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:32:36,589 INFO L93 Difference]: Finished difference Result 362 states and 486 transitions. [2024-11-09 06:32:36,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:32:36,590 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-11-09 06:32:36,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:32:36,592 INFO L225 Difference]: With dead ends: 362 [2024-11-09 06:32:36,592 INFO L226 Difference]: Without dead ends: 361 [2024-11-09 06:32:36,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:32:36,592 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 116 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:32:36,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 48 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-09 06:32:36,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-09 06:32:36,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 356. [2024-11-09 06:32:36,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 312 states have (on average 1.4807692307692308) internal successors, (462), 346 states have internal predecessors, (462), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:32:36,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 478 transitions. [2024-11-09 06:32:36,634 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 478 transitions. Word has length 26 [2024-11-09 06:32:36,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:32:36,634 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 478 transitions. [2024-11-09 06:32:36,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:32:36,634 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 478 transitions. [2024-11-09 06:32:36,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 06:32:36,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:32:36,635 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 06:32:36,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-09 06:32:36,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:32:36,839 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:32:36,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:32:36,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1998530224, now seen corresponding path program 1 times [2024-11-09 06:32:36,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:32:36,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465083406] [2024-11-09 06:32:36,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:32:36,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:32:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:32:36,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1204236666] [2024-11-09 06:32:36,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:32:36,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:32:36,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:32:36,866 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:32:36,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 06:32:36,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:32:36,910 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:32:36,911 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:32:37,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:32:37,168 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:32:37,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:32:37,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465083406] [2024-11-09 06:32:37,169 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:32:37,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204236666] [2024-11-09 06:32:37,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204236666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:32:37,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:32:37,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:32:37,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141390125] [2024-11-09 06:32:37,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:32:37,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:32:37,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:32:37,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:32:37,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:32:37,171 INFO L87 Difference]: Start difference. First operand 356 states and 478 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:32:37,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:32:37,711 INFO L93 Difference]: Finished difference Result 381 states and 504 transitions. [2024-11-09 06:32:37,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:32:37,711 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2024-11-09 06:32:37,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:32:37,712 INFO L225 Difference]: With dead ends: 381 [2024-11-09 06:32:37,713 INFO L226 Difference]: Without dead ends: 376 [2024-11-09 06:32:37,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:32:37,713 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 59 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:32:37,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 51 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:32:37,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-09 06:32:37,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 354. [2024-11-09 06:32:37,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 310 states have (on average 1.4548387096774194) internal successors, (451), 344 states have internal predecessors, (451), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:32:37,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 467 transitions. [2024-11-09 06:32:37,749 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 467 transitions. Word has length 27 [2024-11-09 06:32:37,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:32:37,749 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 467 transitions. [2024-11-09 06:32:37,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:32:37,749 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 467 transitions. [2024-11-09 06:32:37,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 06:32:37,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:32:37,750 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:32:37,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-09 06:32:37,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:32:37,951 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:32:37,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:32:37,951 INFO L85 PathProgramCache]: Analyzing trace with hash 790719778, now seen corresponding path program 1 times [2024-11-09 06:32:37,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:32:37,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436301943] [2024-11-09 06:32:37,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:32:37,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:32:37,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:32:37,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1909446246] [2024-11-09 06:32:37,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:32:37,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:32:37,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:32:37,967 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:32:37,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 06:32:38,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:32:38,031 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 06:32:38,034 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:32:38,737 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:32:38,737 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:32:40,164 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:32:40,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:32:40,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436301943] [2024-11-09 06:32:40,165 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:32:40,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909446246] [2024-11-09 06:32:40,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909446246] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:32:40,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1374023375] [2024-11-09 06:32:40,167 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2024-11-09 06:32:40,168 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:32:40,168 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:32:40,168 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:32:40,168 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:32:42,183 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 95 for LOIs [2024-11-09 06:32:42,225 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:32:45,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1374023375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:32:45,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:32:45,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7, 7] total 20 [2024-11-09 06:32:45,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058172097] [2024-11-09 06:32:45,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:32:45,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:32:45,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:32:45,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:32:45,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=285, Unknown=0, NotChecked=0, Total=420 [2024-11-09 06:32:45,847 INFO L87 Difference]: Start difference. First operand 354 states and 467 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:32:47,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:32:47,081 INFO L93 Difference]: Finished difference Result 392 states and 508 transitions. [2024-11-09 06:32:47,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 06:32:47,082 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2024-11-09 06:32:47,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:32:47,083 INFO L225 Difference]: With dead ends: 392 [2024-11-09 06:32:47,083 INFO L226 Difference]: Without dead ends: 386 [2024-11-09 06:32:47,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 48 SyntacticMatches, 12 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=135, Invalid=285, Unknown=0, NotChecked=0, Total=420 [2024-11-09 06:32:47,084 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 20 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:32:47,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 107 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 06:32:47,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-11-09 06:32:47,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 370. [2024-11-09 06:32:47,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 324 states have (on average 1.4444444444444444) internal successors, (468), 358 states have internal predecessors, (468), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 06:32:47,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 486 transitions. [2024-11-09 06:32:47,131 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 486 transitions. Word has length 27 [2024-11-09 06:32:47,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:32:47,131 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 486 transitions. [2024-11-09 06:32:47,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:32:47,132 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 486 transitions. [2024-11-09 06:32:47,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 06:32:47,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:32:47,132 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 06:32:47,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-09 06:32:47,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:32:47,333 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:32:47,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:32:47,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1824894942, now seen corresponding path program 1 times [2024-11-09 06:32:47,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:32:47,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431503960] [2024-11-09 06:32:47,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:32:47,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:32:47,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:32:47,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:32:47,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:32:47,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431503960] [2024-11-09 06:32:47,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431503960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:32:47,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:32:47,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:32:47,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167884992] [2024-11-09 06:32:47,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:32:47,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:32:47,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:32:47,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:32:47,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:32:47,407 INFO L87 Difference]: Start difference. First operand 370 states and 486 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:32:48,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:32:48,295 INFO L93 Difference]: Finished difference Result 402 states and 513 transitions. [2024-11-09 06:32:48,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:32:48,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2024-11-09 06:32:48,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:32:48,298 INFO L225 Difference]: With dead ends: 402 [2024-11-09 06:32:48,299 INFO L226 Difference]: Without dead ends: 401 [2024-11-09 06:32:48,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:32:48,300 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 56 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:32:48,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 124 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 06:32:48,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-11-09 06:32:48,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 381. [2024-11-09 06:32:48,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 335 states have (on average 1.4477611940298507) internal successors, (485), 369 states have internal predecessors, (485), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 06:32:48,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 503 transitions. [2024-11-09 06:32:48,348 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 503 transitions. Word has length 28 [2024-11-09 06:32:48,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:32:48,349 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 503 transitions. [2024-11-09 06:32:48,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:32:48,349 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 503 transitions. [2024-11-09 06:32:48,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 06:32:48,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:32:48,350 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:32:48,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 06:32:48,350 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:32:48,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:32:48,350 INFO L85 PathProgramCache]: Analyzing trace with hash -737639920, now seen corresponding path program 1 times [2024-11-09 06:32:48,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:32:48,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071150529] [2024-11-09 06:32:48,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:32:48,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:32:48,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:32:48,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1723388525] [2024-11-09 06:32:48,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:32:48,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:32:48,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:32:48,368 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:32:48,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 06:32:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:32:48,426 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:32:48,428 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:32:48,718 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:32:48,718 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:32:48,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:32:48,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071150529] [2024-11-09 06:32:48,718 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:32:48,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723388525] [2024-11-09 06:32:48,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723388525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:32:48,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:32:48,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:32:48,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992848064] [2024-11-09 06:32:48,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:32:48,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:32:48,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:32:48,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:32:48,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:32:48,721 INFO L87 Difference]: Start difference. First operand 381 states and 503 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:32:49,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:32:49,371 INFO L93 Difference]: Finished difference Result 387 states and 507 transitions. [2024-11-09 06:32:49,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:32:49,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2024-11-09 06:32:49,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:32:49,373 INFO L225 Difference]: With dead ends: 387 [2024-11-09 06:32:49,373 INFO L226 Difference]: Without dead ends: 385 [2024-11-09 06:32:49,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:32:49,374 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 51 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:32:49,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 99 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 06:32:49,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-11-09 06:32:49,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 381. [2024-11-09 06:32:49,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 335 states have (on average 1.4417910447761193) internal successors, (483), 369 states have internal predecessors, (483), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 06:32:49,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 501 transitions. [2024-11-09 06:32:49,417 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 501 transitions. Word has length 28 [2024-11-09 06:32:49,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:32:49,417 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 501 transitions. [2024-11-09 06:32:49,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:32:49,418 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 501 transitions. [2024-11-09 06:32:49,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 06:32:49,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:32:49,418 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 06:32:49,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-09 06:32:49,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-09 06:32:49,623 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:32:49,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:32:49,624 INFO L85 PathProgramCache]: Analyzing trace with hash 737168498, now seen corresponding path program 1 times [2024-11-09 06:32:49,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:32:49,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919066700] [2024-11-09 06:32:49,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:32:49,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:32:49,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:32:49,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:32:49,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:32:49,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919066700] [2024-11-09 06:32:49,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919066700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:32:49,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:32:49,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:32:49,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751858077] [2024-11-09 06:32:49,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:32:49,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:32:49,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:32:49,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:32:49,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:32:49,731 INFO L87 Difference]: Start difference. First operand 381 states and 501 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:32:50,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:32:50,260 INFO L93 Difference]: Finished difference Result 402 states and 509 transitions. [2024-11-09 06:32:50,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:32:50,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2024-11-09 06:32:50,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:32:50,262 INFO L225 Difference]: With dead ends: 402 [2024-11-09 06:32:50,262 INFO L226 Difference]: Without dead ends: 401 [2024-11-09 06:32:50,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:32:50,263 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 61 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:32:50,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 126 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:32:50,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-11-09 06:32:50,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 382. [2024-11-09 06:32:50,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 336 states have (on average 1.4375) internal successors, (483), 370 states have internal predecessors, (483), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 06:32:50,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 501 transitions. [2024-11-09 06:32:50,304 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 501 transitions. Word has length 29 [2024-11-09 06:32:50,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:32:50,304 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 501 transitions. [2024-11-09 06:32:50,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:32:50,305 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 501 transitions. [2024-11-09 06:32:50,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 06:32:50,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:32:50,305 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:32:50,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-09 06:32:50,306 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:32:50,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:32:50,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1392000981, now seen corresponding path program 1 times [2024-11-09 06:32:50,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:32:50,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816368450] [2024-11-09 06:32:50,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:32:50,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:32:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:32:50,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1808360226] [2024-11-09 06:32:50,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:32:50,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:32:50,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:32:50,325 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:32:50,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-09 06:32:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:32:50,377 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 06:32:50,378 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:32:50,804 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:32:50,805 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:32:50,941 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 06:32:50,941 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:32:50,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816368450] [2024-11-09 06:32:50,942 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:32:50,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808360226] [2024-11-09 06:32:50,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808360226] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:32:50,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:32:50,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-09 06:32:50,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353204937] [2024-11-09 06:32:50,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:32:50,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:32:50,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:32:50,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:32:50,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:32:50,943 INFO L87 Difference]: Start difference. First operand 382 states and 501 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:32:52,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:32:52,596 INFO L93 Difference]: Finished difference Result 403 states and 537 transitions. [2024-11-09 06:32:52,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:32:52,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2024-11-09 06:32:52,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:32:52,597 INFO L225 Difference]: With dead ends: 403 [2024-11-09 06:32:52,598 INFO L226 Difference]: Without dead ends: 402 [2024-11-09 06:32:52,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:32:52,599 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 35 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:32:52,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 49 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 06:32:52,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2024-11-09 06:32:52,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 400. [2024-11-09 06:32:52,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 354 states have (on average 1.4463276836158192) internal successors, (512), 388 states have internal predecessors, (512), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 06:32:52,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 530 transitions. [2024-11-09 06:32:52,632 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 530 transitions. Word has length 29 [2024-11-09 06:32:52,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:32:52,633 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 530 transitions. [2024-11-09 06:32:52,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:32:52,633 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 530 transitions. [2024-11-09 06:32:52,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 06:32:52,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:32:52,634 INFO L215 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] [2024-11-09 06:32:52,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-09 06:32:52,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-09 06:32:52,835 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:32:52,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:32:52,835 INFO L85 PathProgramCache]: Analyzing trace with hash -250675756, now seen corresponding path program 1 times [2024-11-09 06:32:52,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:32:52,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738482938] [2024-11-09 06:32:52,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:32:52,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:32:52,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:32:52,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2024410580] [2024-11-09 06:32:52,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:32:52,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:32:52,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:32:52,863 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:32:52,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 06:32:52,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:32:52,917 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 06:32:52,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:32:53,210 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:32:53,210 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:32:53,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:32:53,422 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:32:53,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738482938] [2024-11-09 06:32:53,422 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:32:53,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024410580] [2024-11-09 06:32:53,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024410580] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:32:53,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1334235868] [2024-11-09 06:32:53,425 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2024-11-09 06:32:53,425 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:32:53,425 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:32:53,426 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:32:53,426 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:32:54,678 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 44 for LOIs [2024-11-09 06:32:54,688 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:33:24,663 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '19131#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~p~0#1| 1) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~b~0#1_117| Int) (|v_ULTIMATE.start_main_~a~0#1_115| Int)) (and (<= |v_ULTIMATE.start_main_~b~0#1_117| 2147483647) (<= |v_ULTIMATE.start_main_~a~0#1_115| 2147483647) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~a~0#1_115| |v_ULTIMATE.start_main_~b~0#1_117|)) 0))) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= |ULTIMATE.start_main_~q~0#1| 9223372036854775807) (<= |ULTIMATE.start_main_~y~0#1| 2147483647))' at error location [2024-11-09 06:33:24,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:33:24,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:33:24,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-09 06:33:24,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30600916] [2024-11-09 06:33:24,664 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 06:33:24,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:33:24,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:33:24,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:33:24,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=828, Unknown=1, NotChecked=0, Total=992 [2024-11-09 06:33:24,665 INFO L87 Difference]: Start difference. First operand 400 states and 530 transitions. Second operand has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:33:30,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:33:30,693 INFO L93 Difference]: Finished difference Result 432 states and 574 transitions. [2024-11-09 06:33:30,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:33:30,694 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 31 [2024-11-09 06:33:30,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:33:30,695 INFO L225 Difference]: With dead ends: 432 [2024-11-09 06:33:30,695 INFO L226 Difference]: Without dead ends: 431 [2024-11-09 06:33:30,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 55 SyntacticMatches, 6 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 31.0s TimeCoverageRelationStatistics Valid=255, Invalid=1304, Unknown=1, NotChecked=0, Total=1560 [2024-11-09 06:33:30,696 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 168 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:33:30,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 88 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-09 06:33:30,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2024-11-09 06:33:30,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 409. [2024-11-09 06:33:30,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 363 states have (on average 1.443526170798898) internal successors, (524), 397 states have internal predecessors, (524), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 06:33:30,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 542 transitions. [2024-11-09 06:33:30,742 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 542 transitions. Word has length 31 [2024-11-09 06:33:30,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:33:30,742 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 542 transitions. [2024-11-09 06:33:30,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:33:30,743 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 542 transitions. [2024-11-09 06:33:30,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 06:33:30,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:33:30,743 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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] [2024-11-09 06:33:30,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-09 06:33:30,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-09 06:33:30,948 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:33:30,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:33:30,948 INFO L85 PathProgramCache]: Analyzing trace with hash -381231306, now seen corresponding path program 1 times [2024-11-09 06:33:30,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:33:30,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281651064] [2024-11-09 06:33:30,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:33:30,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:33:30,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:33:30,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [877221775] [2024-11-09 06:33:30,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:33:30,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:33:30,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:33:30,965 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:33:30,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-09 06:33:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:33:31,016 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 06:33:31,017 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:33:31,488 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:33:31,488 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:33:32,467 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:33:32,467 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:33:32,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281651064] [2024-11-09 06:33:32,467 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:33:32,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877221775] [2024-11-09 06:33:32,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877221775] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:33:32,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1602899628] [2024-11-09 06:33:32,470 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2024-11-09 06:33:32,470 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:33:32,470 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:33:32,470 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:33:32,471 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:33:33,989 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 44 for LOIs [2024-11-09 06:33:34,003 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:33:56,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1602899628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:33:56,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:33:56,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [5, 5] total 30 [2024-11-09 06:33:56,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243083699] [2024-11-09 06:33:56,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:33:56,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 06:33:56,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:33:56,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 06:33:56,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=786, Unknown=0, NotChecked=0, Total=930 [2024-11-09 06:33:56,613 INFO L87 Difference]: Start difference. First operand 409 states and 542 transitions. Second operand has 23 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 20 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:34:05,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:34:18,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:18,756 INFO L93 Difference]: Finished difference Result 613 states and 831 transitions. [2024-11-09 06:34:18,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-09 06:34:18,757 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 20 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2024-11-09 06:34:18,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:18,759 INFO L225 Difference]: With dead ends: 613 [2024-11-09 06:34:18,759 INFO L226 Difference]: Without dead ends: 605 [2024-11-09 06:34:18,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 61 SyntacticMatches, 7 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 651 ImplicationChecksByTransitivity, 34.8s TimeCoverageRelationStatistics Valid=500, Invalid=1950, Unknown=0, NotChecked=0, Total=2450 [2024-11-09 06:34:18,760 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 177 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:34:18,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 92 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1111 Invalid, 1 Unknown, 0 Unchecked, 10.0s Time] [2024-11-09 06:34:18,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-09 06:34:18,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 558. [2024-11-09 06:34:18,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 506 states have (on average 1.4426877470355732) internal successors, (730), 540 states have internal predecessors, (730), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 06:34:18,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 756 transitions. [2024-11-09 06:34:18,820 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 756 transitions. Word has length 33 [2024-11-09 06:34:18,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:18,820 INFO L471 AbstractCegarLoop]: Abstraction has 558 states and 756 transitions. [2024-11-09 06:34:18,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 20 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:34:18,820 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 756 transitions. [2024-11-09 06:34:18,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 06:34:18,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:18,821 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2024-11-09 06:34:18,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-09 06:34:19,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:34:19,022 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:34:19,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:19,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1291063144, now seen corresponding path program 1 times [2024-11-09 06:34:19,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:19,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495826532] [2024-11-09 06:34:19,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:19,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:19,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:34:19,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1011691781] [2024-11-09 06:34:19,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:19,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:34:19,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:34:19,040 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:34:19,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-09 06:34:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:19,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 06:34:19,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:34:20,656 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:34:20,657 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:34:22,610 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:22,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495826532] [2024-11-09 06:34:22,610 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:34:22,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011691781] [2024-11-09 06:34:22,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011691781] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:34:22,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1786217805] [2024-11-09 06:34:22,613 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2024-11-09 06:34:22,613 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:34:22,613 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:34:22,613 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:34:22,613 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:34:23,869 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 44 for LOIs [2024-11-09 06:34:23,881 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:34:36,690 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21781#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~b~0#1_132| Int) (|v_ULTIMATE.start_main_~a~0#1_130| Int)) (and (<= |v_ULTIMATE.start_main_~b~0#1_132| 2147483647) (<= (+ (* |v_ULTIMATE.start_main_~a~0#1_130| |v_ULTIMATE.start_main_~b~0#1_132|) 1) 0) (<= |v_ULTIMATE.start_main_~a~0#1_130| 2147483647))))' at error location [2024-11-09 06:34:36,691 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:34:36,691 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:34:36,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-09 06:34:36,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12114590] [2024-11-09 06:34:36,691 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:34:36,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:34:36,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:36,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:34:36,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=977, Unknown=0, NotChecked=0, Total=1190 [2024-11-09 06:34:36,693 INFO L87 Difference]: Start difference. First operand 558 states and 756 transitions. Second operand has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:34:38,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:38,508 INFO L93 Difference]: Finished difference Result 578 states and 776 transitions. [2024-11-09 06:34:38,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 06:34:38,509 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-11-09 06:34:38,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:38,510 INFO L225 Difference]: With dead ends: 578 [2024-11-09 06:34:38,511 INFO L226 Difference]: Without dead ends: 576 [2024-11-09 06:34:38,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 53 SyntacticMatches, 6 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=243, Invalid=1163, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 06:34:38,512 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 102 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:34:38,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 80 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 06:34:38,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2024-11-09 06:34:38,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 563. [2024-11-09 06:34:38,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 511 states have (on average 1.436399217221135) internal successors, (734), 545 states have internal predecessors, (734), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 06:34:38,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 760 transitions. [2024-11-09 06:34:38,591 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 760 transitions. Word has length 35 [2024-11-09 06:34:38,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:38,592 INFO L471 AbstractCegarLoop]: Abstraction has 563 states and 760 transitions. [2024-11-09 06:34:38,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:34:38,592 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 760 transitions. [2024-11-09 06:34:38,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-09 06:34:38,593 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:38,593 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2024-11-09 06:34:38,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-09 06:34:38,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:34:38,797 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:34:38,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:38,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1368251741, now seen corresponding path program 1 times [2024-11-09 06:34:38,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:38,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026322232] [2024-11-09 06:34:38,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:38,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:38,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:34:38,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [102609586] [2024-11-09 06:34:38,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:38,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:34:38,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:34:38,823 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:34:38,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-09 06:34:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:38,888 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 06:34:38,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:34:39,613 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:34:39,614 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:34:39,867 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:34:39,867 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:39,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026322232] [2024-11-09 06:34:39,868 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:34:39,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102609586] [2024-11-09 06:34:39,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102609586] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:34:39,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:34:39,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2024-11-09 06:34:39,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649093222] [2024-11-09 06:34:39,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:39,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:34:39,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:39,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:34:39,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:34:39,870 INFO L87 Difference]: Start difference. First operand 563 states and 760 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:34:43,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:43,039 INFO L93 Difference]: Finished difference Result 584 states and 788 transitions. [2024-11-09 06:34:43,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:34:43,040 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2024-11-09 06:34:43,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:43,041 INFO L225 Difference]: With dead ends: 584 [2024-11-09 06:34:43,041 INFO L226 Difference]: Without dead ends: 583 [2024-11-09 06:34:43,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:34:43,042 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 63 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:34:43,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 33 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-09 06:34:43,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-09 06:34:43,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 563. [2024-11-09 06:34:43,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 511 states have (on average 1.4246575342465753) internal successors, (728), 545 states have internal predecessors, (728), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 06:34:43,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 754 transitions. [2024-11-09 06:34:43,117 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 754 transitions. Word has length 36 [2024-11-09 06:34:43,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:43,117 INFO L471 AbstractCegarLoop]: Abstraction has 563 states and 754 transitions. [2024-11-09 06:34:43,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:34:43,117 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 754 transitions. [2024-11-09 06:34:43,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 06:34:43,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:43,118 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:34:43,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-09 06:34:43,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-09 06:34:43,323 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:34:43,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:43,324 INFO L85 PathProgramCache]: Analyzing trace with hash -119449845, now seen corresponding path program 1 times [2024-11-09 06:34:43,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:43,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895175565] [2024-11-09 06:34:43,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:43,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:43,388 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:34:43,388 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:43,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895175565] [2024-11-09 06:34:43,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895175565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:43,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:34:43,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:34:43,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824364176] [2024-11-09 06:34:43,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:43,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:34:43,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:43,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:34:43,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:34:43,390 INFO L87 Difference]: Start difference. First operand 563 states and 754 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:34:43,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:43,690 INFO L93 Difference]: Finished difference Result 563 states and 754 transitions. [2024-11-09 06:34:43,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:34:43,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 39 [2024-11-09 06:34:43,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:43,692 INFO L225 Difference]: With dead ends: 563 [2024-11-09 06:34:43,692 INFO L226 Difference]: Without dead ends: 560 [2024-11-09 06:34:43,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:34:43,693 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 39 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:34:43,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 30 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:34:43,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-09 06:34:43,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2024-11-09 06:34:43,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 511 states have (on average 1.4070450097847358) internal successors, (719), 542 states have internal predecessors, (719), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 06:34:43,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 745 transitions. [2024-11-09 06:34:43,761 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 745 transitions. Word has length 39 [2024-11-09 06:34:43,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:43,762 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 745 transitions. [2024-11-09 06:34:43,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:34:43,762 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 745 transitions. [2024-11-09 06:34:43,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 06:34:43,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:43,763 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:34:43,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-09 06:34:43,763 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:34:43,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:43,764 INFO L85 PathProgramCache]: Analyzing trace with hash 592022213, now seen corresponding path program 1 times [2024-11-09 06:34:43,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:43,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154281393] [2024-11-09 06:34:43,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:43,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:34:43,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [435487734] [2024-11-09 06:34:43,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:43,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:34:43,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:34:43,787 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:34:43,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-09 06:34:43,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:43,845 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 06:34:43,847 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:34:48,604 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:34:48,605 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:34:49,281 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 06:34:49,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:49,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154281393] [2024-11-09 06:34:49,282 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:34:49,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435487734] [2024-11-09 06:34:49,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435487734] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:34:49,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:34:49,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-09 06:34:49,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267097359] [2024-11-09 06:34:49,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:49,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:34:49,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:49,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:34:49,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-09 06:34:49,284 INFO L87 Difference]: Start difference. First operand 560 states and 745 transitions. Second operand has 6 states, 4 states have (on average 8.25) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:34:50,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:50,738 INFO L93 Difference]: Finished difference Result 633 states and 854 transitions. [2024-11-09 06:34:50,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:34:50,739 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 8.25) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 40 [2024-11-09 06:34:50,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:50,741 INFO L225 Difference]: With dead ends: 633 [2024-11-09 06:34:50,741 INFO L226 Difference]: Without dead ends: 632 [2024-11-09 06:34:50,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-09 06:34:50,742 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 61 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:34:50,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 85 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 06:34:50,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2024-11-09 06:34:50,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 559. [2024-11-09 06:34:50,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 511 states have (on average 1.3992172211350293) internal successors, (715), 541 states have internal predecessors, (715), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 06:34:50,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 741 transitions. [2024-11-09 06:34:50,802 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 741 transitions. Word has length 40 [2024-11-09 06:34:50,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:50,802 INFO L471 AbstractCegarLoop]: Abstraction has 559 states and 741 transitions. [2024-11-09 06:34:50,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 8.25) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:34:50,802 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 741 transitions. [2024-11-09 06:34:50,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 06:34:50,803 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:50,803 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:34:50,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-09 06:34:51,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-09 06:34:51,004 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:34:51,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:51,004 INFO L85 PathProgramCache]: Analyzing trace with hash 578631159, now seen corresponding path program 1 times [2024-11-09 06:34:51,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:51,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245785896] [2024-11-09 06:34:51,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:51,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:34:51,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1236477553] [2024-11-09 06:34:51,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:51,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:34:51,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:34:51,021 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:34:51,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-09 06:34:51,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:51,111 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 06:34:51,113 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:34:59,864 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:34:59,865 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:35:01,570 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 06:35:01,570 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:35:01,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245785896] [2024-11-09 06:35:01,570 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:35:01,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236477553] [2024-11-09 06:35:01,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236477553] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:35:01,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:35:01,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-09 06:35:01,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643208239] [2024-11-09 06:35:01,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:35:01,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:35:01,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:35:01,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:35:01,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-11-09 06:35:01,572 INFO L87 Difference]: Start difference. First operand 559 states and 741 transitions. Second operand has 6 states, 4 states have (on average 8.0) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:35:04,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:35:04,276 INFO L93 Difference]: Finished difference Result 665 states and 890 transitions. [2024-11-09 06:35:04,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:35:04,276 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 8.0) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 40 [2024-11-09 06:35:04,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:35:04,278 INFO L225 Difference]: With dead ends: 665 [2024-11-09 06:35:04,278 INFO L226 Difference]: Without dead ends: 664 [2024-11-09 06:35:04,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-11-09 06:35:04,279 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 50 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:35:04,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 91 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-09 06:35:04,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2024-11-09 06:35:04,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 558. [2024-11-09 06:35:04,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 511 states have (on average 1.3933463796477494) internal successors, (712), 540 states have internal predecessors, (712), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 06:35:04,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 738 transitions. [2024-11-09 06:35:04,356 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 738 transitions. Word has length 40 [2024-11-09 06:35:04,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:35:04,357 INFO L471 AbstractCegarLoop]: Abstraction has 558 states and 738 transitions. [2024-11-09 06:35:04,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 8.0) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:35:04,357 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 738 transitions. [2024-11-09 06:35:04,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 06:35:04,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:35:04,358 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:35:04,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-09 06:35:04,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:35:04,559 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:35:04,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:35:04,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1172819533, now seen corresponding path program 1 times [2024-11-09 06:35:04,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:35:04,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937628533] [2024-11-09 06:35:04,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:04,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:35:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:35:04,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [307446929] [2024-11-09 06:35:04,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:04,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:35:04,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:35:04,597 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:35:04,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-09 06:35:04,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:04,660 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 06:35:04,662 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:35:09,300 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:35:09,300 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:35:11,131 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 06:35:11,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:35:11,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937628533] [2024-11-09 06:35:11,132 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:35:11,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307446929] [2024-11-09 06:35:11,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307446929] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:35:11,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:35:11,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-09 06:35:11,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329906212] [2024-11-09 06:35:11,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:35:11,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:35:11,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:35:11,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:35:11,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-09 06:35:11,134 INFO L87 Difference]: Start difference. First operand 558 states and 738 transitions. Second operand has 6 states, 4 states have (on average 8.25) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:35:14,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:35:14,412 INFO L93 Difference]: Finished difference Result 631 states and 847 transitions. [2024-11-09 06:35:14,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:35:14,412 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 8.25) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2024-11-09 06:35:14,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:35:14,414 INFO L225 Difference]: With dead ends: 631 [2024-11-09 06:35:14,414 INFO L226 Difference]: Without dead ends: 630 [2024-11-09 06:35:14,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-09 06:35:14,415 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 43 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:35:14,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 90 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-09 06:35:14,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2024-11-09 06:35:14,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 557. [2024-11-09 06:35:14,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 511 states have (on average 1.3894324853228963) internal successors, (710), 539 states have internal predecessors, (710), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 06:35:14,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 736 transitions. [2024-11-09 06:35:14,485 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 736 transitions. Word has length 41 [2024-11-09 06:35:14,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:35:14,485 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 736 transitions. [2024-11-09 06:35:14,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 8.25) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:35:14,486 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 736 transitions. [2024-11-09 06:35:14,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 06:35:14,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:35:14,487 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-09 06:35:14,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-09 06:35:14,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-09 06:35:14,691 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:35:14,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:35:14,692 INFO L85 PathProgramCache]: Analyzing trace with hash 773795358, now seen corresponding path program 1 times [2024-11-09 06:35:14,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:35:14,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891718309] [2024-11-09 06:35:14,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:14,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:35:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:14,767 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:35:14,767 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:35:14,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891718309] [2024-11-09 06:35:14,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891718309] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:35:14,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214431227] [2024-11-09 06:35:14,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:14,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:35:14,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:35:14,770 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:35:14,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-09 06:35:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:14,822 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:35:14,823 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:35:14,898 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:35:14,898 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:35:14,998 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:35:14,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214431227] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:35:14,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [744849568] [2024-11-09 06:35:15,000 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 06:35:15,001 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:35:15,001 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:35:15,001 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:35:15,001 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:35:16,497 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 77 for LOIs [2024-11-09 06:35:16,525 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:35:20,766 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1_154| Int)) (let ((.cse5 (+ |v_ULTIMATE.start_main_~a~0#1_154| 1)) (.cse4 (= (mod |v_ULTIMATE.start_main_~a~0#1_154| 2) 0))) (let ((.cse2 (not .cse4)) (.cse3 (<= .cse5 0)) (.cse0 (div |v_ULTIMATE.start_main_~a~0#1_154| 2)) (.cse1 (or .cse4 (< 0 .cse5)))) (and (or (and (<= .cse0 9223372036854775807) .cse1) (and (<= .cse0 9223372036854775806) .cse2 .cse3)) (or (and (= |c_ULTIMATE.start_main_~a~0#1| (+ .cse0 1)) .cse2 .cse3) (and .cse1 (= .cse0 |c_ULTIMATE.start_main_~a~0#1|))) (or (and (<= 0 (+ .cse0 9223372036854775809)) .cse2 .cse3) (and (<= 0 (+ .cse0 9223372036854775808)) .cse1)))))) is different from true [2024-11-09 06:35:34,330 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '30366#true' at error location [2024-11-09 06:35:34,330 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:35:34,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:35:34,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-09 06:35:34,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749964039] [2024-11-09 06:35:34,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:35:34,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:35:34,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:35:34,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:35:34,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=381, Unknown=5, NotChecked=40, Total=506 [2024-11-09 06:35:34,332 INFO L87 Difference]: Start difference. First operand 557 states and 736 transitions. Second operand has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 06:35:34,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:35:34,823 INFO L93 Difference]: Finished difference Result 1116 states and 1486 transitions. [2024-11-09 06:35:34,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:35:34,823 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 41 [2024-11-09 06:35:34,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:35:34,826 INFO L225 Difference]: With dead ends: 1116 [2024-11-09 06:35:34,826 INFO L226 Difference]: Without dead ends: 1115 [2024-11-09 06:35:34,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 17.8s TimeCoverageRelationStatistics Valid=80, Invalid=381, Unknown=5, NotChecked=40, Total=506 [2024-11-09 06:35:34,827 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 210 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:35:34,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 261 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:35:34,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2024-11-09 06:35:34,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1064. [2024-11-09 06:35:34,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 1006 states have (on average 1.4184890656063618) internal successors, (1427), 1034 states have internal predecessors, (1427), 25 states have call successors, (25), 4 states have call predecessors, (25), 4 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 06:35:34,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1477 transitions. [2024-11-09 06:35:34,929 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1477 transitions. Word has length 41 [2024-11-09 06:35:34,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:35:34,930 INFO L471 AbstractCegarLoop]: Abstraction has 1064 states and 1477 transitions. [2024-11-09 06:35:34,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 06:35:34,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1477 transitions. [2024-11-09 06:35:34,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 06:35:34,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:35:34,931 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1] [2024-11-09 06:35:34,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-09 06:35:35,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-09 06:35:35,132 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:35:35,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:35:35,132 INFO L85 PathProgramCache]: Analyzing trace with hash 485756660, now seen corresponding path program 1 times [2024-11-09 06:35:35,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:35:35,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474148553] [2024-11-09 06:35:35,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:35,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:35:35,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:35,245 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:35:35,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:35:35,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474148553] [2024-11-09 06:35:35,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474148553] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:35:35,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686859794] [2024-11-09 06:35:35,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:35,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:35:35,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:35:35,248 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:35:35,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-09 06:35:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:35,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:35:35,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:35:35,387 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:35:35,387 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:35:35,493 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:35:35,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686859794] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:35:35,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2117029016] [2024-11-09 06:35:35,495 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2024-11-09 06:35:35,496 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:35:35,496 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:35:35,496 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:35:35,496 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:35:37,065 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 95 for LOIs [2024-11-09 06:35:37,111 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:35:40,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2117029016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:35:40,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:35:40,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [3, 3, 3] total 16 [2024-11-09 06:35:40,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609644878] [2024-11-09 06:35:40,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:35:40,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:35:40,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:35:40,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:35:40,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:35:40,341 INFO L87 Difference]: Start difference. First operand 1064 states and 1477 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:35:42,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:35:42,930 INFO L93 Difference]: Finished difference Result 1083 states and 1496 transitions. [2024-11-09 06:35:42,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:35:42,931 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2024-11-09 06:35:42,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:35:42,935 INFO L225 Difference]: With dead ends: 1083 [2024-11-09 06:35:42,935 INFO L226 Difference]: Without dead ends: 1080 [2024-11-09 06:35:42,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 92 SyntacticMatches, 20 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=170, Invalid=292, Unknown=0, NotChecked=0, Total=462 [2024-11-09 06:35:42,937 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 43 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:35:42,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 90 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 06:35:42,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2024-11-09 06:35:43,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 1073. [2024-11-09 06:35:43,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1073 states, 1015 states have (on average 1.4147783251231527) internal successors, (1436), 1043 states have internal predecessors, (1436), 25 states have call successors, (25), 4 states have call predecessors, (25), 4 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 06:35:43,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1486 transitions. [2024-11-09 06:35:43,042 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1486 transitions. Word has length 42 [2024-11-09 06:35:43,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:35:43,042 INFO L471 AbstractCegarLoop]: Abstraction has 1073 states and 1486 transitions. [2024-11-09 06:35:43,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:35:43,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1486 transitions. [2024-11-09 06:35:43,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 06:35:43,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:35:43,043 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:35:43,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-09 06:35:43,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-09 06:35:43,244 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:35:43,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:35:43,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1883131641, now seen corresponding path program 1 times [2024-11-09 06:35:43,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:35:43,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699915526] [2024-11-09 06:35:43,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:43,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:35:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:43,579 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:35:43,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:35:43,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699915526] [2024-11-09 06:35:43,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699915526] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:35:43,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90891371] [2024-11-09 06:35:43,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:43,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:35:43,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:35:43,582 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:35:43,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-09 06:35:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:43,626 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:35:43,628 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:35:43,827 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 06:35:43,827 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:35:43,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90891371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:35:43,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:35:43,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-11-09 06:35:43,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976385807] [2024-11-09 06:35:43,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:35:43,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:35:43,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:35:43,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:35:43,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-09 06:35:43,829 INFO L87 Difference]: Start difference. First operand 1073 states and 1486 transitions. Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:35:44,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:35:44,569 INFO L93 Difference]: Finished difference Result 1845 states and 2667 transitions. [2024-11-09 06:35:44,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:35:44,570 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2024-11-09 06:35:44,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:35:44,573 INFO L225 Difference]: With dead ends: 1845 [2024-11-09 06:35:44,573 INFO L226 Difference]: Without dead ends: 1363 [2024-11-09 06:35:44,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-09 06:35:44,577 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 116 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:35:44,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 38 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 06:35:44,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2024-11-09 06:35:44,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1168. [2024-11-09 06:35:44,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1168 states, 1105 states have (on average 1.358371040723982) internal successors, (1501), 1127 states have internal predecessors, (1501), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-09 06:35:44,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1168 states to 1168 states and 1573 transitions. [2024-11-09 06:35:44,692 INFO L78 Accepts]: Start accepts. Automaton has 1168 states and 1573 transitions. Word has length 42 [2024-11-09 06:35:44,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:35:44,693 INFO L471 AbstractCegarLoop]: Abstraction has 1168 states and 1573 transitions. [2024-11-09 06:35:44,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:35:44,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1168 states and 1573 transitions. [2024-11-09 06:35:44,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-09 06:35:44,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:35:44,693 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-09 06:35:44,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-09 06:35:44,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-09 06:35:44,894 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:35:44,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:35:44,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1047271044, now seen corresponding path program 1 times [2024-11-09 06:35:44,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:35:44,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513425523] [2024-11-09 06:35:44,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:44,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:35:44,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:45,099 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:35:45,099 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:35:45,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513425523] [2024-11-09 06:35:45,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513425523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:35:45,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:35:45,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:35:45,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319787602] [2024-11-09 06:35:45,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:35:45,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:35:45,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:35:45,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:35:45,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:35:45,101 INFO L87 Difference]: Start difference. First operand 1168 states and 1573 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:35:46,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:35:46,027 INFO L93 Difference]: Finished difference Result 2315 states and 3226 transitions. [2024-11-09 06:35:46,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:35:46,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2024-11-09 06:35:46,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:35:46,031 INFO L225 Difference]: With dead ends: 2315 [2024-11-09 06:35:46,031 INFO L226 Difference]: Without dead ends: 1432 [2024-11-09 06:35:46,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:35:46,033 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 47 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:35:46,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 115 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 06:35:46,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2024-11-09 06:35:46,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1432. [2024-11-09 06:35:46,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1359 states have (on average 1.373804267844003) internal successors, (1867), 1381 states have internal predecessors, (1867), 46 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-09 06:35:46,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 1959 transitions. [2024-11-09 06:35:46,177 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 1959 transitions. Word has length 43 [2024-11-09 06:35:46,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:35:46,177 INFO L471 AbstractCegarLoop]: Abstraction has 1432 states and 1959 transitions. [2024-11-09 06:35:46,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:35:46,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 1959 transitions. [2024-11-09 06:35:46,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-09 06:35:46,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:35:46,178 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:35:46,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-09 06:35:46,178 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:35:46,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:35:46,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1752461405, now seen corresponding path program 1 times [2024-11-09 06:35:46,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:35:46,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973895398] [2024-11-09 06:35:46,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:46,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:35:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:46,585 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:35:46,585 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:35:46,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973895398] [2024-11-09 06:35:46,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973895398] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:35:46,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837014250] [2024-11-09 06:35:46,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:46,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:35:46,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:35:46,587 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:35:46,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-09 06:35:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:46,637 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 06:35:46,638 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:35:47,063 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:35:47,063 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:35:47,862 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:35:47,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837014250] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:35:47,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:35:47,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 20 [2024-11-09 06:35:47,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745375104] [2024-11-09 06:35:47,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:35:47,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:35:47,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:35:47,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:35:47,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2024-11-09 06:35:47,864 INFO L87 Difference]: Start difference. First operand 1432 states and 1959 transitions. Second operand has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:35:48,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:35:48,645 INFO L93 Difference]: Finished difference Result 1624 states and 2247 transitions. [2024-11-09 06:35:48,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:35:48,645 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2024-11-09 06:35:48,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:35:48,648 INFO L225 Difference]: With dead ends: 1624 [2024-11-09 06:35:48,648 INFO L226 Difference]: Without dead ends: 1623 [2024-11-09 06:35:48,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2024-11-09 06:35:48,649 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 227 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:35:48,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 33 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:35:48,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1623 states. [2024-11-09 06:35:48,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1623 to 1431. [2024-11-09 06:35:48,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1431 states, 1359 states have (on average 1.3561442236938925) internal successors, (1843), 1380 states have internal predecessors, (1843), 46 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-09 06:35:48,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 1935 transitions. [2024-11-09 06:35:48,821 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 1935 transitions. Word has length 43 [2024-11-09 06:35:48,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:35:48,821 INFO L471 AbstractCegarLoop]: Abstraction has 1431 states and 1935 transitions. [2024-11-09 06:35:48,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:35:48,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 1935 transitions. [2024-11-09 06:35:48,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-09 06:35:48,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:35:48,823 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:35:48,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-09 06:35:49,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:35:49,024 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:35:49,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:35:49,024 INFO L85 PathProgramCache]: Analyzing trace with hash 488234463, now seen corresponding path program 1 times [2024-11-09 06:35:49,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:35:49,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464718202] [2024-11-09 06:35:49,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:49,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:35:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:49,512 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:35:49,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:35:49,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464718202] [2024-11-09 06:35:49,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464718202] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:35:49,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737019428] [2024-11-09 06:35:49,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:49,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:35:49,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:35:49,515 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:35:49,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-09 06:35:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:49,576 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 06:35:49,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:35:50,010 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:35:50,010 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:35:50,793 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:35:50,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737019428] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:35:50,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:35:50,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 20 [2024-11-09 06:35:50,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715771891] [2024-11-09 06:35:50,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:35:50,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:35:50,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:35:50,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:35:50,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2024-11-09 06:35:50,795 INFO L87 Difference]: Start difference. First operand 1431 states and 1935 transitions. Second operand has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:35:51,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:35:51,434 INFO L93 Difference]: Finished difference Result 1475 states and 1991 transitions. [2024-11-09 06:35:51,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:35:51,435 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-09 06:35:51,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:35:51,438 INFO L225 Difference]: With dead ends: 1475 [2024-11-09 06:35:51,438 INFO L226 Difference]: Without dead ends: 1474 [2024-11-09 06:35:51,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2024-11-09 06:35:51,439 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 119 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:35:51,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 32 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:35:51,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2024-11-09 06:35:51,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1430. [2024-11-09 06:35:51,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1430 states, 1359 states have (on average 1.3384841795437823) internal successors, (1819), 1379 states have internal predecessors, (1819), 46 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-09 06:35:51,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 1911 transitions. [2024-11-09 06:35:51,558 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 1911 transitions. Word has length 45 [2024-11-09 06:35:51,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:35:51,558 INFO L471 AbstractCegarLoop]: Abstraction has 1430 states and 1911 transitions. [2024-11-09 06:35:51,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:35:51,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 1911 transitions. [2024-11-09 06:35:51,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 06:35:51,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:35:51,559 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:35:51,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-09 06:35:51,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-09 06:35:51,760 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:35:51,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:35:51,760 INFO L85 PathProgramCache]: Analyzing trace with hash -2044600693, now seen corresponding path program 1 times [2024-11-09 06:35:51,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:35:51,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440561295] [2024-11-09 06:35:51,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:51,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:35:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:35:51,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1041244263] [2024-11-09 06:35:51,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:51,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:35:51,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:35:51,787 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:35:51,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-09 06:35:51,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:51,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 06:35:51,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:35:52,310 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:35:52,311 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:36:01,881 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:36:01,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:36:01,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440561295] [2024-11-09 06:36:01,882 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:36:01,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041244263] [2024-11-09 06:36:01,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041244263] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:36:01,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1020335977] [2024-11-09 06:36:01,884 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2024-11-09 06:36:01,884 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:36:01,885 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:36:01,885 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:36:01,885 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:36:05,131 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 37 for LOIs [2024-11-09 06:36:05,181 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:36:17,730 WARN L286 SmtUtils]: Spent 9.58s on a formula simplification. DAG size of input: 71 DAG size of output: 36 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:38:06,251 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '50319#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~a~0#1_175| Int) (|v_ULTIMATE.start_main_~b~0#1_183| Int) (|v_ULTIMATE.start_main_~p~0#1_105| Int)) (and (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~a~0#1_175| |v_ULTIMATE.start_main_~p~0#1_105|) |v_ULTIMATE.start_main_~p~0#1_105| (* |v_ULTIMATE.start_main_~b~0#1_183| |v_ULTIMATE.start_main_~p~0#1_105|)) 0) (not (= (+ |v_ULTIMATE.start_main_~a~0#1_175| 1) 0)) (not (= (+ |v_ULTIMATE.start_main_~b~0#1_183| 1) 0)) (= (+ (* |v_ULTIMATE.start_main_~a~0#1_175| |v_ULTIMATE.start_main_~p~0#1_105|) |v_ULTIMATE.start_main_~p~0#1_105| (* |v_ULTIMATE.start_main_~b~0#1_183| |v_ULTIMATE.start_main_~p~0#1_105|) (* |v_ULTIMATE.start_main_~a~0#1_175| |v_ULTIMATE.start_main_~b~0#1_183| |v_ULTIMATE.start_main_~p~0#1_105|)) (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)))) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~y~0#1| 2147483647))' at error location [2024-11-09 06:38:06,251 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:38:06,252 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:38:06,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-09 06:38:06,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026549355] [2024-11-09 06:38:06,252 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 06:38:06,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 06:38:06,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:06,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 06:38:06,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=1394, Unknown=15, NotChecked=0, Total=1640 [2024-11-09 06:38:06,254 INFO L87 Difference]: Start difference. First operand 1430 states and 1911 transitions. Second operand has 16 states, 15 states have (on average 5.4) internal successors, (81), 16 states have internal predecessors, (81), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:38:26,938 WARN L286 SmtUtils]: Spent 20.27s on a formula simplification. DAG size of input: 54 DAG size of output: 37 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:38:30,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:38:34,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:38:36,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:38:38,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:38:54,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:38:56,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:39:04,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:39:04,397 INFO L93 Difference]: Finished difference Result 2117 states and 2867 transitions. [2024-11-09 06:39:04,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-09 06:39:04,397 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.4) internal successors, (81), 16 states have internal predecessors, (81), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 46 [2024-11-09 06:39:04,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:39:04,402 INFO L225 Difference]: With dead ends: 2117 [2024-11-09 06:39:04,402 INFO L226 Difference]: Without dead ends: 2113 [2024-11-09 06:39:04,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 92 SyntacticMatches, 5 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 916 ImplicationChecksByTransitivity, 164.8s TimeCoverageRelationStatistics Valid=328, Invalid=1907, Unknown=21, NotChecked=0, Total=2256 [2024-11-09 06:39:04,404 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 402 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 1020 mSolverCounterSat, 81 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 1105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1020 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:39:04,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 89 Invalid, 1105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1020 Invalid, 4 Unknown, 0 Unchecked, 22.2s Time] [2024-11-09 06:39:04,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2113 states. [2024-11-09 06:39:04,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2113 to 1635. [2024-11-09 06:39:04,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1635 states, 1556 states have (on average 1.3245501285347043) internal successors, (2061), 1576 states have internal predecessors, (2061), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-09 06:39:04,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1635 states to 1635 states and 2169 transitions. [2024-11-09 06:39:04,592 INFO L78 Accepts]: Start accepts. Automaton has 1635 states and 2169 transitions. Word has length 46 [2024-11-09 06:39:04,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:39:04,593 INFO L471 AbstractCegarLoop]: Abstraction has 1635 states and 2169 transitions. [2024-11-09 06:39:04,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.4) internal successors, (81), 16 states have internal predecessors, (81), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:39:04,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1635 states and 2169 transitions. [2024-11-09 06:39:04,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 06:39:04,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:39:04,594 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:39:04,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-09 06:39:04,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-09 06:39:04,795 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:39:04,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:39:04,795 INFO L85 PathProgramCache]: Analyzing trace with hash -205928483, now seen corresponding path program 1 times [2024-11-09 06:39:04,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:39:04,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733514841] [2024-11-09 06:39:04,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:04,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:39:04,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:39:04,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1018535339] [2024-11-09 06:39:04,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:04,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:39:04,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:39:04,825 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:39:04,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-09 06:39:04,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:39:04,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 06:39:04,907 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:39:05,329 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:39:05,329 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:39:05,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:39:05,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733514841] [2024-11-09 06:39:05,330 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:39:05,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018535339] [2024-11-09 06:39:05,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018535339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:39:05,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:39:05,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 06:39:05,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650756467] [2024-11-09 06:39:05,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:39:05,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:39:05,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:39:05,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:39:05,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:39:05,340 INFO L87 Difference]: Start difference. First operand 1635 states and 2169 transitions. Second operand has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:39:06,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:39:06,769 INFO L93 Difference]: Finished difference Result 2553 states and 3460 transitions. [2024-11-09 06:39:06,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 06:39:06,769 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2024-11-09 06:39:06,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:39:06,778 INFO L225 Difference]: With dead ends: 2553 [2024-11-09 06:39:06,778 INFO L226 Difference]: Without dead ends: 1967 [2024-11-09 06:39:06,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=109, Unknown=0, NotChecked=0, Total=182 [2024-11-09 06:39:06,780 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 96 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:39:06,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 124 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 06:39:06,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1967 states. [2024-11-09 06:39:06,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1967 to 1766. [2024-11-09 06:39:06,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1766 states, 1677 states have (on average 1.3220035778175314) internal successors, (2217), 1697 states have internal predecessors, (2217), 64 states have call successors, (64), 4 states have call predecessors, (64), 4 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-09 06:39:07,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1766 states to 1766 states and 2345 transitions. [2024-11-09 06:39:07,001 INFO L78 Accepts]: Start accepts. Automaton has 1766 states and 2345 transitions. Word has length 46 [2024-11-09 06:39:07,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:39:07,001 INFO L471 AbstractCegarLoop]: Abstraction has 1766 states and 2345 transitions. [2024-11-09 06:39:07,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:39:07,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1766 states and 2345 transitions. [2024-11-09 06:39:07,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 06:39:07,002 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:39:07,003 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:39:07,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-09 06:39:07,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:39:07,207 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:39:07,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:39:07,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1041888097, now seen corresponding path program 1 times [2024-11-09 06:39:07,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:39:07,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025836858] [2024-11-09 06:39:07,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:07,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:39:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:39:07,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1467234964] [2024-11-09 06:39:07,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:07,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:39:07,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:39:07,234 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:39:07,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-09 06:39:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:39:07,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 06:39:07,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:39:08,088 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:39:08,088 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:39:19,901 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:39:19,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025836858] [2024-11-09 06:39:19,902 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:39:19,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467234964] [2024-11-09 06:39:19,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467234964] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:39:19,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [115180556] [2024-11-09 06:39:19,904 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2024-11-09 06:39:19,904 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:39:19,904 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:39:19,904 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:39:19,905 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:39:23,692 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 37 for LOIs [2024-11-09 06:39:23,700 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:40:37,554 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '59498#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~a~0#1_186| Int) (|v_ULTIMATE.start_main_~b~0#1_194| Int) (|v_ULTIMATE.start_main_~p~0#1_113| Int)) (and (not (= (+ |v_ULTIMATE.start_main_~b~0#1_194| 1) 0)) (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~a~0#1_186| |v_ULTIMATE.start_main_~p~0#1_113|) (* |v_ULTIMATE.start_main_~b~0#1_194| |v_ULTIMATE.start_main_~p~0#1_113|) |v_ULTIMATE.start_main_~p~0#1_113|)) (= (+ (* |v_ULTIMATE.start_main_~a~0#1_186| |v_ULTIMATE.start_main_~b~0#1_194| |v_ULTIMATE.start_main_~p~0#1_113|) (* |v_ULTIMATE.start_main_~a~0#1_186| |v_ULTIMATE.start_main_~p~0#1_113|) (* |v_ULTIMATE.start_main_~b~0#1_194| |v_ULTIMATE.start_main_~p~0#1_113|) |v_ULTIMATE.start_main_~p~0#1_113|) (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (not (= (+ |v_ULTIMATE.start_main_~a~0#1_186| 1) 0)))))' at error location [2024-11-09 06:40:37,554 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:40:37,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:40:37,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-09 06:40:37,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109814202] [2024-11-09 06:40:37,555 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:40:37,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:40:37,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:40:37,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:40:37,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=1471, Unknown=16, NotChecked=0, Total=1722 [2024-11-09 06:40:37,556 INFO L87 Difference]: Start difference. First operand 1766 states and 2345 transitions. Second operand has 9 states, 8 states have (on average 5.25) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:40:39,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:40:39,333 INFO L93 Difference]: Finished difference Result 1903 states and 2536 transitions. [2024-11-09 06:40:39,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 06:40:39,333 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2024-11-09 06:40:39,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:40:39,341 INFO L225 Difference]: With dead ends: 1903 [2024-11-09 06:40:39,341 INFO L226 Difference]: Without dead ends: 1895 [2024-11-09 06:40:39,342 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 83 SyntacticMatches, 5 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 699 ImplicationChecksByTransitivity, 83.8s TimeCoverageRelationStatistics Valid=247, Invalid=1543, Unknown=16, NotChecked=0, Total=1806 [2024-11-09 06:40:39,343 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 70 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 1107 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:40:39,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 171 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1107 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 06:40:39,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1895 states. [2024-11-09 06:40:39,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1895 to 1892. [2024-11-09 06:40:39,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1892 states, 1799 states have (on average 1.3157309616453585) internal successors, (2367), 1819 states have internal predecessors, (2367), 68 states have call successors, (68), 4 states have call predecessors, (68), 4 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-09 06:40:39,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1892 states to 1892 states and 2503 transitions. [2024-11-09 06:40:39,709 INFO L78 Accepts]: Start accepts. Automaton has 1892 states and 2503 transitions. Word has length 47 [2024-11-09 06:40:39,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:40:39,709 INFO L471 AbstractCegarLoop]: Abstraction has 1892 states and 2503 transitions. [2024-11-09 06:40:39,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:40:39,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1892 states and 2503 transitions. [2024-11-09 06:40:39,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 06:40:39,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:40:39,711 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:40:39,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-09 06:40:39,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:40:39,912 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:40:39,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:40:39,912 INFO L85 PathProgramCache]: Analyzing trace with hash -165922349, now seen corresponding path program 1 times [2024-11-09 06:40:39,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:40:39,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199401342] [2024-11-09 06:40:39,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:40:39,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:40:39,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:40:39,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1830980566] [2024-11-09 06:40:39,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:40:39,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:40:39,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:40:39,946 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:40:39,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-09 06:40:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:40:40,030 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 06:40:40,032 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:40:50,507 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:40:50,507 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:40:53,622 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 06:40:53,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:40:53,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199401342] [2024-11-09 06:40:53,623 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:40:53,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830980566] [2024-11-09 06:40:53,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830980566] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:40:53,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:40:53,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2024-11-09 06:40:53,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242561737] [2024-11-09 06:40:53,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:40:53,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:40:53,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:40:53,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:40:53,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=211, Unknown=4, NotChecked=0, Total=272 [2024-11-09 06:40:53,624 INFO L87 Difference]: Start difference. First operand 1892 states and 2503 transitions. Second operand has 7 states, 5 states have (on average 8.0) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:41:00,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:41:02,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:41:02,577 INFO L93 Difference]: Finished difference Result 1893 states and 2503 transitions. [2024-11-09 06:41:02,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:41:02,578 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 8.0) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2024-11-09 06:41:02,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:41:02,583 INFO L225 Difference]: With dead ends: 1893 [2024-11-09 06:41:02,583 INFO L226 Difference]: Without dead ends: 1892 [2024-11-09 06:41:02,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=64, Invalid=238, Unknown=4, NotChecked=0, Total=306 [2024-11-09 06:41:02,585 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 67 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:41:02,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 64 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2024-11-09 06:41:02,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1892 states. [2024-11-09 06:41:02,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1892 to 1892. [2024-11-09 06:41:02,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1892 states, 1799 states have (on average 1.310728182323513) internal successors, (2358), 1819 states have internal predecessors, (2358), 68 states have call successors, (68), 4 states have call predecessors, (68), 4 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-09 06:41:02,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1892 states to 1892 states and 2494 transitions. [2024-11-09 06:41:02,810 INFO L78 Accepts]: Start accepts. Automaton has 1892 states and 2494 transitions. Word has length 47 [2024-11-09 06:41:02,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:41:02,810 INFO L471 AbstractCegarLoop]: Abstraction has 1892 states and 2494 transitions. [2024-11-09 06:41:02,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 8.0) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:41:02,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1892 states and 2494 transitions. [2024-11-09 06:41:02,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-09 06:41:02,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:41:02,812 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:41:02,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-09 06:41:03,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:41:03,016 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:41:03,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:41:03,016 INFO L85 PathProgramCache]: Analyzing trace with hash -306532799, now seen corresponding path program 1 times [2024-11-09 06:41:03,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:41:03,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683759477] [2024-11-09 06:41:03,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:41:03,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:41:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:41:03,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1419327600] [2024-11-09 06:41:03,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:41:03,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:41:03,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:41:03,040 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:41:03,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-09 06:41:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:41:03,109 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:41:03,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:41:03,428 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 06:41:03,428 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:41:03,867 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:41:03,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683759477] [2024-11-09 06:41:03,868 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:41:03,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419327600] [2024-11-09 06:41:03,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419327600] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:41:03,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [524998329] [2024-11-09 06:41:03,869 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 06:41:03,870 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:41:03,870 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:41:03,870 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:41:03,870 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:42:00,594 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 40 for LOIs [2024-11-09 06:42:00,608 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:42:34,871 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '68223#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~b~0#1_206| Int) (|v_ULTIMATE.start_main_~a~0#1_206| Int) (|v_ULTIMATE.start_main_~p~0#1_124| Int)) (<= (* |v_ULTIMATE.start_main_~a~0#1_206| |v_ULTIMATE.start_main_~b~0#1_206| |v_ULTIMATE.start_main_~p~0#1_124|) 9223372036854775807)) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y~0#1| 2147483647))' at error location [2024-11-09 06:42:34,871 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:42:34,871 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:42:34,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-09 06:42:34,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612097948] [2024-11-09 06:42:34,871 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:42:34,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:42:34,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:42:34,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:42:34,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=605, Unknown=7, NotChecked=0, Total=756 [2024-11-09 06:42:34,873 INFO L87 Difference]: Start difference. First operand 1892 states and 2494 transitions. Second operand has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:42:37,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:42:39,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:42:40,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:42:40,752 INFO L93 Difference]: Finished difference Result 2040 states and 2681 transitions. [2024-11-09 06:42:40,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:42:40,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2024-11-09 06:42:40,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:42:40,757 INFO L225 Difference]: With dead ends: 2040 [2024-11-09 06:42:40,757 INFO L226 Difference]: Without dead ends: 2039 [2024-11-09 06:42:40,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 79 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 34.5s TimeCoverageRelationStatistics Valid=157, Invalid=706, Unknown=7, NotChecked=0, Total=870 [2024-11-09 06:42:40,759 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 65 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:42:40,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 119 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 313 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2024-11-09 06:42:40,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2039 states. [2024-11-09 06:42:41,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2039 to 1952. [2024-11-09 06:42:41,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1952 states, 1856 states have (on average 1.3044181034482758) internal successors, (2421), 1876 states have internal predecessors, (2421), 71 states have call successors, (71), 4 states have call predecessors, (71), 4 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-09 06:42:41,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1952 states to 1952 states and 2563 transitions. [2024-11-09 06:42:41,011 INFO L78 Accepts]: Start accepts. Automaton has 1952 states and 2563 transitions. Word has length 48 [2024-11-09 06:42:41,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:42:41,012 INFO L471 AbstractCegarLoop]: Abstraction has 1952 states and 2563 transitions. [2024-11-09 06:42:41,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:42:41,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1952 states and 2563 transitions. [2024-11-09 06:42:41,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-09 06:42:41,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:42:41,013 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:42:41,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-09 06:42:41,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-09 06:42:41,217 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:42:41,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:42:41,218 INFO L85 PathProgramCache]: Analyzing trace with hash -328774785, now seen corresponding path program 2 times [2024-11-09 06:42:41,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:42:41,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564710698] [2024-11-09 06:42:41,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:42:41,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:42:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:42:41,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1380395393] [2024-11-09 06:42:41,257 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:42:41,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:42:41,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:42:41,261 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:42:41,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-09 06:42:41,329 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 06:42:41,330 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:42:41,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 06:42:41,332 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:42:44,293 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 06:42:44,293 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:42:46,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:42:46,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564710698] [2024-11-09 06:42:46,637 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:42:46,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380395393] [2024-11-09 06:42:46,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380395393] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:42:46,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1435316085] [2024-11-09 06:42:46,639 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 06:42:46,639 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:42:46,640 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:42:46,640 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:42:46,640 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:43:47,178 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 40 for LOIs [2024-11-09 06:43:47,187 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:44:16,728 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '72766#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (exists ((|v_ULTIMATE.start_main_~p~0#1_131| Int) (|v_ULTIMATE.start_main_~a~0#1_224| Int) (|v_ULTIMATE.start_main_~b~0#1_213| Int)) (<= (* |v_ULTIMATE.start_main_~a~0#1_224| |v_ULTIMATE.start_main_~b~0#1_213| |v_ULTIMATE.start_main_~p~0#1_131|) 9223372036854775807)) (<= |ULTIMATE.start_main_~y~0#1| 2147483647))' at error location [2024-11-09 06:44:16,728 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:44:16,728 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:44:16,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-09 06:44:16,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014017698] [2024-11-09 06:44:16,729 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:44:16,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:44:16,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:44:16,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:44:16,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=815, Unknown=6, NotChecked=0, Total=992 [2024-11-09 06:44:16,730 INFO L87 Difference]: Start difference. First operand 1952 states and 2563 transitions. Second operand has 8 states, 6 states have (on average 6.5) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:44:18,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:21,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:23,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:25,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:27,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:29,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:32,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:34,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:36,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:44:36,313 INFO L93 Difference]: Finished difference Result 2012 states and 2630 transitions. [2024-11-09 06:44:36,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:44:36,319 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 6.5) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2024-11-09 06:44:36,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:44:36,323 INFO L225 Difference]: With dead ends: 2012 [2024-11-09 06:44:36,323 INFO L226 Difference]: Without dead ends: 2011 [2024-11-09 06:44:36,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 75 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 34.0s TimeCoverageRelationStatistics Valid=171, Invalid=815, Unknown=6, NotChecked=0, Total=992 [2024-11-09 06:44:36,324 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 60 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 7 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:44:36,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 128 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 326 Invalid, 8 Unknown, 0 Unchecked, 19.4s Time] [2024-11-09 06:44:36,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2011 states. [2024-11-09 06:44:36,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2011 to 1976. [2024-11-09 06:44:36,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1976 states, 1880 states have (on average 1.3021276595744682) internal successors, (2448), 1900 states have internal predecessors, (2448), 71 states have call successors, (71), 4 states have call predecessors, (71), 4 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-09 06:44:36,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 2590 transitions. [2024-11-09 06:44:36,564 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 2590 transitions. Word has length 48 [2024-11-09 06:44:36,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:44:36,564 INFO L471 AbstractCegarLoop]: Abstraction has 1976 states and 2590 transitions. [2024-11-09 06:44:36,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 6.5) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:44:36,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 2590 transitions. [2024-11-09 06:44:36,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-09 06:44:36,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:44:36,565 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:44:36,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-11-09 06:44:36,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-09 06:44:36,766 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 06:44:36,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:44:36,766 INFO L85 PathProgramCache]: Analyzing trace with hash 709523601, now seen corresponding path program 1 times [2024-11-09 06:44:36,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:44:36,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973907130] [2024-11-09 06:44:36,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:44:36,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:44:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:44:37,584 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:44:37,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:44:37,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973907130] [2024-11-09 06:44:37,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973907130] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:44:37,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695381607] [2024-11-09 06:44:37,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:44:37,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:44:37,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:44:37,587 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:44:37,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a832fc4-e1d4-42e9-96b8-0ab30184d35b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-09 06:44:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:44:37,649 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 06:44:37,650 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:44:38,345 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:44:38,345 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:44:39,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695381607] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:44:39,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1604628662] [2024-11-09 06:44:39,346 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2024-11-09 06:44:39,346 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:44:39,346 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:44:39,346 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:44:39,346 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:44:40,553 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 44 for LOIs [2024-11-09 06:44:40,566 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:44:54,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1604628662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:44:54,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:44:54,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [7, 6] total 36 [2024-11-09 06:44:54,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196381616] [2024-11-09 06:44:54,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:44:54,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-09 06:44:54,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:44:54,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-09 06:44:54,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=1394, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 06:44:54,547 INFO L87 Difference]: Start difference. First operand 1976 states and 2590 transitions. Second operand has 26 states, 24 states have (on average 1.375) internal successors, (33), 23 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)