./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/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_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/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_79400a68-cec4-44b9-ba8a-5d552a3ab61d/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 014459ae7f9a4506b7655fe1f167856eb64829e3739070f7d1f854e4ecd5b5bc --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:47:10,460 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:47:10,561 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 05:47:10,568 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:47:10,569 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:47:10,611 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:47:10,612 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:47:10,612 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:47:10,616 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:47:10,616 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:47:10,617 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:47:10,617 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:47:10,618 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:47:10,618 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:47:10,618 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:47:10,619 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:47:10,619 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:47:10,623 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:47:10,623 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:47:10,624 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:47:10,624 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:47:10,625 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:47:10,630 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:47:10,630 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:47:10,630 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:47:10,631 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:47:10,631 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:47:10,632 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:47:10,632 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:47:10,632 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:47:10,633 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:47:10,633 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:47:10,633 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 05:47:10,636 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:47:10,637 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:47:10,637 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:47:10,637 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:47:10,638 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:47:10,638 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:47:10,638 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:47:10,638 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:47:10,639 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:47:10,639 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:47:10,639 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:47:10,640 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:47:10,640 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:47:10,640 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:47:10,640 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:47:10,641 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:47:10,641 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_79400a68-cec4-44b9-ba8a-5d552a3ab61d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 014459ae7f9a4506b7655fe1f167856eb64829e3739070f7d1f854e4ecd5b5bc [2024-11-09 05:47:10,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:47:11,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:47:11,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:47:11,015 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:47:11,016 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:47:11,017 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound20.c Unable to find full path for "g++" [2024-11-09 05:47:13,114 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:47:13,315 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:47:13,316 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound20.c [2024-11-09 05:47:13,324 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/data/11c8966f8/6297c8aaa9ed4af4aa70ce92d1bea0bd/FLAG3850b4de4 [2024-11-09 05:47:13,700 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/data/11c8966f8/6297c8aaa9ed4af4aa70ce92d1bea0bd [2024-11-09 05:47:13,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:47:13,705 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:47:13,707 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:47:13,707 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:47:13,715 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:47:13,716 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:47:13" (1/1) ... [2024-11-09 05:47:13,717 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bfa2b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:13, skipping insertion in model container [2024-11-09 05:47:13,718 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:47:13" (1/1) ... [2024-11-09 05:47:13,741 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:47:13,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:47:13,978 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:47:14,003 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:47:14,022 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:47:14,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:14 WrapperNode [2024-11-09 05:47:14,023 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:47:14,024 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:47:14,024 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:47:14,025 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:47:14,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:14" (1/1) ... [2024-11-09 05:47:14,040 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:14" (1/1) ... [2024-11-09 05:47:14,063 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 91 [2024-11-09 05:47:14,063 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:47:14,064 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:47:14,064 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:47:14,065 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:47:14,073 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:14" (1/1) ... [2024-11-09 05:47:14,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:14" (1/1) ... [2024-11-09 05:47:14,075 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:14" (1/1) ... [2024-11-09 05:47:14,076 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:14" (1/1) ... [2024-11-09 05:47:14,079 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:14" (1/1) ... [2024-11-09 05:47:14,084 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:14" (1/1) ... [2024-11-09 05:47:14,089 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:14" (1/1) ... [2024-11-09 05:47:14,093 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:14" (1/1) ... [2024-11-09 05:47:14,096 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:47:14,098 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:47:14,100 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:47:14,100 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:47:14,101 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:14" (1/1) ... [2024-11-09 05:47:14,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:47:14,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:47:14,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:47:14,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:47:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:47:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:47:14,190 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:47:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:47:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:47:14,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:47:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 05:47:14,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 05:47:14,272 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:47:14,274 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:47:14,743 INFO L? ?]: Removed 63 outVars from TransFormulas that were not future-live. [2024-11-09 05:47:14,743 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:47:14,786 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:47:14,787 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 05:47:14,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:47:14 BoogieIcfgContainer [2024-11-09 05:47:14,787 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:47:14,790 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:47:14,790 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:47:14,794 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:47:14,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:47:13" (1/3) ... [2024-11-09 05:47:14,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@290308cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:47:14, skipping insertion in model container [2024-11-09 05:47:14,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:14" (2/3) ... [2024-11-09 05:47:14,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@290308cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:47:14, skipping insertion in model container [2024-11-09 05:47:14,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:47:14" (3/3) ... [2024-11-09 05:47:14,797 INFO L112 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound20.c [2024-11-09 05:47:14,818 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:47:14,819 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2024-11-09 05:47:14,887 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:47:14,895 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;@5ecbd271, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:47:14,895 INFO L334 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2024-11-09 05:47:14,900 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 40 states have (on average 1.85) internal successors, (74), 70 states have internal predecessors, (74), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 05:47:14,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 05:47:14,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:47:14,910 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:47:14,910 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:47:14,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:47:14,919 INFO L85 PathProgramCache]: Analyzing trace with hash 2139381359, now seen corresponding path program 1 times [2024-11-09 05:47:14,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:47:14,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259044286] [2024-11-09 05:47:14,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:14,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:47:15,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:47:15,162 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:47:15,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:47:15,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259044286] [2024-11-09 05:47:15,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259044286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:47:15,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:47:15,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:47:15,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495180669] [2024-11-09 05:47:15,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:47:15,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:47:15,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:47:15,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:47:15,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:47:15,196 INFO L87 Difference]: Start difference. First operand has 83 states, 40 states have (on average 1.85) internal successors, (74), 70 states have internal predecessors, (74), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 05:47:15,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:47:15,240 INFO L93 Difference]: Finished difference Result 158 states and 178 transitions. [2024-11-09 05:47:15,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:47:15,243 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 14 [2024-11-09 05:47:15,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:47:15,249 INFO L225 Difference]: With dead ends: 158 [2024-11-09 05:47:15,249 INFO L226 Difference]: Without dead ends: 80 [2024-11-09 05:47:15,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:47:15,257 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:47:15,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:47:15,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-09 05:47:15,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-11-09 05:47:15,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 39 states have (on average 1.794871794871795) internal successors, (70), 68 states have internal predecessors, (70), 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 05:47:15,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2024-11-09 05:47:15,304 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 14 [2024-11-09 05:47:15,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:47:15,306 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2024-11-09 05:47:15,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 05:47:15,307 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2024-11-09 05:47:15,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 05:47:15,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:47:15,308 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:47:15,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:47:15,309 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:47:15,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:47:15,310 INFO L85 PathProgramCache]: Analyzing trace with hash 2139376689, now seen corresponding path program 1 times [2024-11-09 05:47:15,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:47:15,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403021464] [2024-11-09 05:47:15,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:15,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:47:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:47:15,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [789568214] [2024-11-09 05:47:15,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:15,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:47:15,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:47:15,345 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:47:15,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:47:15,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:47:15,420 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:47:15,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:47:15,456 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:47:15,456 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:47:15,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:47:15,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403021464] [2024-11-09 05:47:15,457 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:47:15,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789568214] [2024-11-09 05:47:15,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789568214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:47:15,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:47:15,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:47:15,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372521018] [2024-11-09 05:47:15,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:47:15,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:47:15,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:47:15,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:47:15,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:47:15,462 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 05:47:15,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:47:15,653 INFO L93 Difference]: Finished difference Result 104 states and 114 transitions. [2024-11-09 05:47:15,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:47:15,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 14 [2024-11-09 05:47:15,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:47:15,658 INFO L225 Difference]: With dead ends: 104 [2024-11-09 05:47:15,658 INFO L226 Difference]: Without dead ends: 102 [2024-11-09 05:47:15,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 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 05:47:15,663 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 18 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:47:15,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 146 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:47:15,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-09 05:47:15,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 83. [2024-11-09 05:47:15,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 42 states have (on average 1.7380952380952381) internal successors, (73), 71 states have internal predecessors, (73), 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 05:47:15,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 91 transitions. [2024-11-09 05:47:15,685 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 91 transitions. Word has length 14 [2024-11-09 05:47:15,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:47:15,687 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 91 transitions. [2024-11-09 05:47:15,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 05:47:15,688 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 91 transitions. [2024-11-09 05:47:15,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 05:47:15,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:47:15,688 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:47:15,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:47:15,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:47:15,890 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:47:15,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:47:15,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1712720476, now seen corresponding path program 1 times [2024-11-09 05:47:15,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:47:15,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527936422] [2024-11-09 05:47:15,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:15,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:47:15,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:47:15,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [7948219] [2024-11-09 05:47:15,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:15,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:47:15,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:47:15,925 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:47:15,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:47:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:47:16,010 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:47:16,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:47:16,043 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:47:16,043 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:47:16,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:47:16,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527936422] [2024-11-09 05:47:16,044 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:47:16,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7948219] [2024-11-09 05:47:16,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7948219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:47:16,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:47:16,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:47:16,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557405274] [2024-11-09 05:47:16,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:47:16,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:47:16,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:47:16,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:47:16,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:47:16,047 INFO L87 Difference]: Start difference. First operand 83 states and 91 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:47:16,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:47:16,224 INFO L93 Difference]: Finished difference Result 140 states and 163 transitions. [2024-11-09 05:47:16,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:47:16,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 19 [2024-11-09 05:47:16,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:47:16,230 INFO L225 Difference]: With dead ends: 140 [2024-11-09 05:47:16,230 INFO L226 Difference]: Without dead ends: 134 [2024-11-09 05:47:16,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 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 05:47:16,235 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 45 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:47:16,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 121 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:47:16,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-09 05:47:16,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 114. [2024-11-09 05:47:16,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 67 states have (on average 1.7313432835820894) internal successors, (116), 96 states have internal predecessors, (116), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 05:47:16,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 146 transitions. [2024-11-09 05:47:16,261 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 146 transitions. Word has length 19 [2024-11-09 05:47:16,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:47:16,262 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 146 transitions. [2024-11-09 05:47:16,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:47:16,262 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 146 transitions. [2024-11-09 05:47:16,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 05:47:16,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:47:16,263 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:47:16,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:47:16,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:47:16,472 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:47:16,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:47:16,473 INFO L85 PathProgramCache]: Analyzing trace with hash -951901338, now seen corresponding path program 1 times [2024-11-09 05:47:16,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:47:16,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696463005] [2024-11-09 05:47:16,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:16,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:47:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:47:16,931 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:47:16,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:47:16,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696463005] [2024-11-09 05:47:16,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696463005] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:47:16,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373351449] [2024-11-09 05:47:16,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:16,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:47:16,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:47:16,935 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:47:16,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:47:16,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:47:16,997 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:47:16,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:47:17,155 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:47:17,155 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:47:17,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373351449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:47:17,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:47:17,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-09 05:47:17,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46318467] [2024-11-09 05:47:17,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:47:17,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:47:17,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:47:17,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:47:17,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:47:17,158 INFO L87 Difference]: Start difference. First operand 114 states and 146 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:47:17,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:47:17,433 INFO L93 Difference]: Finished difference Result 133 states and 153 transitions. [2024-11-09 05:47:17,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:47:17,434 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 21 [2024-11-09 05:47:17,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:47:17,438 INFO L225 Difference]: With dead ends: 133 [2024-11-09 05:47:17,439 INFO L226 Difference]: Without dead ends: 130 [2024-11-09 05:47:17,439 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:47:17,440 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 155 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:47:17,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 120 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:47:17,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-09 05:47:17,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 115. [2024-11-09 05:47:17,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 68 states have (on average 1.6911764705882353) internal successors, (115), 97 states have internal predecessors, (115), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 05:47:17,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 145 transitions. [2024-11-09 05:47:17,469 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 145 transitions. Word has length 21 [2024-11-09 05:47:17,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:47:17,469 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 145 transitions. [2024-11-09 05:47:17,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:47:17,473 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 145 transitions. [2024-11-09 05:47:17,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 05:47:17,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:47:17,474 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:47:17,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 05:47:17,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:47:17,675 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:47:17,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:47:17,676 INFO L85 PathProgramCache]: Analyzing trace with hash 555829652, now seen corresponding path program 1 times [2024-11-09 05:47:17,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:47:17,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655769644] [2024-11-09 05:47:17,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:17,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:47:17,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:47:17,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [960987824] [2024-11-09 05:47:17,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:17,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:47:17,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:47:17,722 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:47:17,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:47:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:47:17,782 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:47:17,784 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:47:17,897 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:47:17,897 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:47:17,898 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:47:17,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655769644] [2024-11-09 05:47:17,898 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:47:17,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960987824] [2024-11-09 05:47:17,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960987824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:47:17,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:47:17,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:47:17,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786691397] [2024-11-09 05:47:17,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:47:17,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:47:17,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:47:17,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:47:17,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:47:17,904 INFO L87 Difference]: Start difference. First operand 115 states and 145 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:47:18,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:47:18,123 INFO L93 Difference]: Finished difference Result 133 states and 150 transitions. [2024-11-09 05:47:18,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:47:18,124 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 22 [2024-11-09 05:47:18,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:47:18,125 INFO L225 Difference]: With dead ends: 133 [2024-11-09 05:47:18,126 INFO L226 Difference]: Without dead ends: 126 [2024-11-09 05:47:18,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:47:18,127 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 151 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:47:18,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 123 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:47:18,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-11-09 05:47:18,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 112. [2024-11-09 05:47:18,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 65 states have (on average 1.676923076923077) internal successors, (109), 94 states have internal predecessors, (109), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 05:47:18,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 139 transitions. [2024-11-09 05:47:18,150 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 139 transitions. Word has length 22 [2024-11-09 05:47:18,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:47:18,151 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 139 transitions. [2024-11-09 05:47:18,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:47:18,151 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 139 transitions. [2024-11-09 05:47:18,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 05:47:18,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:47:18,152 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 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 05:47:18,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 05:47:18,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:47:18,353 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:47:18,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:47:18,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1804965154, now seen corresponding path program 1 times [2024-11-09 05:47:18,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:47:18,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260780167] [2024-11-09 05:47:18,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:18,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:47:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:47:18,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1333001198] [2024-11-09 05:47:18,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:18,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:47:18,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:47:18,380 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:47:18,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 05:47:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:47:18,448 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:47:18,450 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:47:18,527 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:47:18,527 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:47:18,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:47:18,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260780167] [2024-11-09 05:47:18,528 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:47:18,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333001198] [2024-11-09 05:47:18,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333001198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:47:18,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:47:18,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:47:18,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205942593] [2024-11-09 05:47:18,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:47:18,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:47:18,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:47:18,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:47:18,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:47:18,531 INFO L87 Difference]: Start difference. First operand 112 states and 139 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:47:18,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:47:18,783 INFO L93 Difference]: Finished difference Result 179 states and 247 transitions. [2024-11-09 05:47:18,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:47:18,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 28 [2024-11-09 05:47:18,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:47:18,786 INFO L225 Difference]: With dead ends: 179 [2024-11-09 05:47:18,786 INFO L226 Difference]: Without dead ends: 174 [2024-11-09 05:47:18,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 25 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 05:47:18,787 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 74 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:47:18,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 83 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:47:18,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-09 05:47:18,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 158. [2024-11-09 05:47:18,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 103 states have (on average 1.6407766990291262) internal successors, (169), 132 states have internal predecessors, (169), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-09 05:47:18,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 215 transitions. [2024-11-09 05:47:18,829 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 215 transitions. Word has length 28 [2024-11-09 05:47:18,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:47:18,829 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 215 transitions. [2024-11-09 05:47:18,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:47:18,829 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 215 transitions. [2024-11-09 05:47:18,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 05:47:18,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:47:18,830 INFO L215 NwaCegarLoop]: trace histogram [3, 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 05:47:18,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 05:47:19,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:47:19,032 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:47:19,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:47:19,032 INFO L85 PathProgramCache]: Analyzing trace with hash 119345002, now seen corresponding path program 1 times [2024-11-09 05:47:19,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:47:19,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679289286] [2024-11-09 05:47:19,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:19,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:47:19,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:47:19,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [500642131] [2024-11-09 05:47:19,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:19,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:47:19,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:47:19,058 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:47:19,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 05:47:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:47:19,124 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:47:19,125 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:47:19,189 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:47:19,189 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:47:19,189 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:47:19,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679289286] [2024-11-09 05:47:19,190 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:47:19,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500642131] [2024-11-09 05:47:19,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500642131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:47:19,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:47:19,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:47:19,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327991623] [2024-11-09 05:47:19,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:47:19,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:47:19,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:47:19,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:47:19,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:47:19,192 INFO L87 Difference]: Start difference. First operand 158 states and 215 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:47:19,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:47:19,420 INFO L93 Difference]: Finished difference Result 177 states and 238 transitions. [2024-11-09 05:47:19,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:47:19,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 29 [2024-11-09 05:47:19,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:47:19,423 INFO L225 Difference]: With dead ends: 177 [2024-11-09 05:47:19,423 INFO L226 Difference]: Without dead ends: 174 [2024-11-09 05:47:19,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 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 05:47:19,425 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 73 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:47:19,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 83 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:47:19,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-09 05:47:19,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 159. [2024-11-09 05:47:19,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 104 states have (on average 1.5961538461538463) internal successors, (166), 133 states have internal predecessors, (166), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-09 05:47:19,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 212 transitions. [2024-11-09 05:47:19,446 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 212 transitions. Word has length 29 [2024-11-09 05:47:19,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:47:19,447 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 212 transitions. [2024-11-09 05:47:19,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:47:19,447 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 212 transitions. [2024-11-09 05:47:19,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-09 05:47:19,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:47:19,448 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:47:19,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 05:47:19,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:47:19,649 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:47:19,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:47:19,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1142858813, now seen corresponding path program 1 times [2024-11-09 05:47:19,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:47:19,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339235257] [2024-11-09 05:47:19,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:19,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:47:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:47:19,783 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-09 05:47:19,784 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:47:19,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339235257] [2024-11-09 05:47:19,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339235257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:47:19,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:47:19,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:47:19,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024338588] [2024-11-09 05:47:19,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:47:19,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:47:19,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:47:19,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:47:19,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:47:19,786 INFO L87 Difference]: Start difference. First operand 159 states and 212 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:47:20,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:47:20,513 INFO L93 Difference]: Finished difference Result 192 states and 241 transitions. [2024-11-09 05:47:20,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:47:20,514 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), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 43 [2024-11-09 05:47:20,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:47:20,516 INFO L225 Difference]: With dead ends: 192 [2024-11-09 05:47:20,516 INFO L226 Difference]: Without dead ends: 190 [2024-11-09 05:47:20,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:47:20,519 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 114 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:47:20,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 71 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:47:20,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-09 05:47:20,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 161. [2024-11-09 05:47:20,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 106 states have (on average 1.5660377358490567) internal successors, (166), 135 states have internal predecessors, (166), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-09 05:47:20,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 212 transitions. [2024-11-09 05:47:20,546 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 212 transitions. Word has length 43 [2024-11-09 05:47:20,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:47:20,547 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 212 transitions. [2024-11-09 05:47:20,547 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), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:47:20,547 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 212 transitions. [2024-11-09 05:47:20,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 05:47:20,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:47:20,550 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:47:20,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 05:47:20,550 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:47:20,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:47:20,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1068884744, now seen corresponding path program 1 times [2024-11-09 05:47:20,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:47:20,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997453323] [2024-11-09 05:47:20,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:20,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:47:20,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:47:20,724 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-09 05:47:20,725 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:47:20,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997453323] [2024-11-09 05:47:20,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997453323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:47:20,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:47:20,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:47:20,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829653525] [2024-11-09 05:47:20,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:47:20,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:47:20,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:47:20,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:47:20,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:47:20,728 INFO L87 Difference]: Start difference. First operand 161 states and 212 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:47:20,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:47:20,973 INFO L93 Difference]: Finished difference Result 192 states and 237 transitions. [2024-11-09 05:47:20,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:47:20,973 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 44 [2024-11-09 05:47:20,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:47:20,975 INFO L225 Difference]: With dead ends: 192 [2024-11-09 05:47:20,976 INFO L226 Difference]: Without dead ends: 190 [2024-11-09 05:47:20,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:47:20,977 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 111 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:47:20,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 73 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:47:20,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-09 05:47:20,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 163. [2024-11-09 05:47:20,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 108 states have (on average 1.537037037037037) internal successors, (166), 137 states have internal predecessors, (166), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-09 05:47:21,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 212 transitions. [2024-11-09 05:47:21,001 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 212 transitions. Word has length 44 [2024-11-09 05:47:21,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:47:21,002 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 212 transitions. [2024-11-09 05:47:21,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:47:21,002 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 212 transitions. [2024-11-09 05:47:21,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 05:47:21,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:47:21,004 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:47:21,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 05:47:21,004 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:47:21,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:47:21,005 INFO L85 PathProgramCache]: Analyzing trace with hash -701052208, now seen corresponding path program 1 times [2024-11-09 05:47:21,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:47:21,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070361968] [2024-11-09 05:47:21,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:21,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:47:21,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:47:21,079 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-09 05:47:21,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:47:21,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070361968] [2024-11-09 05:47:21,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070361968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:47:21,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:47:21,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:47:21,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145050422] [2024-11-09 05:47:21,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:47:21,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:47:21,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:47:21,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:47:21,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:47:21,082 INFO L87 Difference]: Start difference. First operand 163 states and 212 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:47:21,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:47:21,172 INFO L93 Difference]: Finished difference Result 168 states and 212 transitions. [2024-11-09 05:47:21,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:47:21,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 46 [2024-11-09 05:47:21,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:47:21,175 INFO L225 Difference]: With dead ends: 168 [2024-11-09 05:47:21,175 INFO L226 Difference]: Without dead ends: 167 [2024-11-09 05:47:21,175 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 05:47:21,176 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 13 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:47:21,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 129 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:47:21,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-09 05:47:21,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 163. [2024-11-09 05:47:21,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 108 states have (on average 1.5277777777777777) internal successors, (165), 137 states have internal predecessors, (165), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-09 05:47:21,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 211 transitions. [2024-11-09 05:47:21,204 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 211 transitions. Word has length 46 [2024-11-09 05:47:21,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:47:21,205 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 211 transitions. [2024-11-09 05:47:21,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:47:21,206 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 211 transitions. [2024-11-09 05:47:21,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 05:47:21,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:47:21,208 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:47:21,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 05:47:21,209 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:47:21,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:47:21,209 INFO L85 PathProgramCache]: Analyzing trace with hash -701052166, now seen corresponding path program 1 times [2024-11-09 05:47:21,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:47:21,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341305049] [2024-11-09 05:47:21,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:21,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:47:21,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:47:21,365 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 05:47:21,365 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:47:21,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341305049] [2024-11-09 05:47:21,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341305049] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:47:21,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24706642] [2024-11-09 05:47:21,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:21,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:47:21,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:47:21,368 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:47:21,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 05:47:21,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:47:21,426 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:47:21,428 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:47:21,605 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 05:47:21,605 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:47:21,721 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 05:47:21,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24706642] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:47:21,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [496039007] [2024-11-09 05:47:21,745 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2024-11-09 05:47:21,745 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:47:21,749 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:47:21,755 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:47:21,756 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:47:22,850 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 34 for LOIs [2024-11-09 05:47:22,857 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:47:22,859 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:47:24,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [496039007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:47:24,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:47:24,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [3, 3, 3] total 16 [2024-11-09 05:47:24,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376289022] [2024-11-09 05:47:24,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:47:24,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:47:24,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:47:24,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:47:24,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2024-11-09 05:47:24,125 INFO L87 Difference]: Start difference. First operand 163 states and 211 transitions. Second operand has 13 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-09 05:47:24,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:47:24,737 INFO L93 Difference]: Finished difference Result 168 states and 215 transitions. [2024-11-09 05:47:24,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 05:47:24,738 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 46 [2024-11-09 05:47:24,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:47:24,740 INFO L225 Difference]: With dead ends: 168 [2024-11-09 05:47:24,742 INFO L226 Difference]: Without dead ends: 165 [2024-11-09 05:47:24,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 109 SyntacticMatches, 15 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2024-11-09 05:47:24,743 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 196 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:47:24,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 66 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 05:47:24,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-09 05:47:24,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2024-11-09 05:47:24,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 111 states have (on average 1.4414414414414414) internal successors, (160), 138 states have internal predecessors, (160), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-09 05:47:24,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 206 transitions. [2024-11-09 05:47:24,771 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 206 transitions. Word has length 46 [2024-11-09 05:47:24,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:47:24,772 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 206 transitions. [2024-11-09 05:47:24,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-09 05:47:24,772 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 206 transitions. [2024-11-09 05:47:24,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-09 05:47:24,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:47:24,777 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:47:24,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 05:47:24,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:47:24,982 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:47:24,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:47:24,982 INFO L85 PathProgramCache]: Analyzing trace with hash 598697426, now seen corresponding path program 1 times [2024-11-09 05:47:24,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:47:24,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671344887] [2024-11-09 05:47:24,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:24,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:47:24,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:47:25,080 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-09 05:47:25,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:47:25,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671344887] [2024-11-09 05:47:25,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671344887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:47:25,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:47:25,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:47:25,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907520611] [2024-11-09 05:47:25,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:47:25,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:47:25,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:47:25,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:47:25,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:47:25,083 INFO L87 Difference]: Start difference. First operand 165 states and 206 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:47:25,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:47:25,373 INFO L93 Difference]: Finished difference Result 185 states and 218 transitions. [2024-11-09 05:47:25,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:47:25,374 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), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 48 [2024-11-09 05:47:25,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:47:25,376 INFO L225 Difference]: With dead ends: 185 [2024-11-09 05:47:25,377 INFO L226 Difference]: Without dead ends: 183 [2024-11-09 05:47:25,377 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 05:47:25,378 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 49 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:47:25,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 138 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:47:25,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-09 05:47:25,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2024-11-09 05:47:25,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 113 states have (on average 1.4336283185840708) internal successors, (162), 140 states have internal predecessors, (162), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-09 05:47:25,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 208 transitions. [2024-11-09 05:47:25,404 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 208 transitions. Word has length 48 [2024-11-09 05:47:25,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:47:25,404 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 208 transitions. [2024-11-09 05:47:25,405 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), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:47:25,405 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 208 transitions. [2024-11-09 05:47:25,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 05:47:25,406 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:47:25,406 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:47:25,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 05:47:25,406 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:47:25,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:47:25,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1789089111, now seen corresponding path program 1 times [2024-11-09 05:47:25,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:47:25,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002592867] [2024-11-09 05:47:25,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:25,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:47:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:47:25,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [655401488] [2024-11-09 05:47:25,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:25,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:47:25,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:47:25,429 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:47:25,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 05:47:25,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:47:25,492 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 05:47:25,495 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:47:25,856 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-09 05:47:25,856 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:47:26,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:47:26,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002592867] [2024-11-09 05:47:26,101 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:47:26,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655401488] [2024-11-09 05:47:26,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655401488] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:47:26,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [987505947] [2024-11-09 05:47:26,105 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2024-11-09 05:47:26,105 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:47:26,106 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:47:26,106 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:47:26,106 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:47:32,912 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:47:32,913 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:47:32,914 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:47:36,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [987505947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:47:36,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:47:36,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [7] total 22 [2024-11-09 05:47:36,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500138127] [2024-11-09 05:47:36,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:47:36,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 05:47:36,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:47:36,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 05:47:36,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=486, Unknown=0, NotChecked=0, Total=650 [2024-11-09 05:47:36,820 INFO L87 Difference]: Start difference. First operand 167 states and 208 transitions. Second operand has 17 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-09 05:47:37,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:47:37,827 INFO L93 Difference]: Finished difference Result 222 states and 270 transitions. [2024-11-09 05:47:37,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 05:47:37,828 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 56 [2024-11-09 05:47:37,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:47:37,829 INFO L225 Difference]: With dead ends: 222 [2024-11-09 05:47:37,829 INFO L226 Difference]: Without dead ends: 203 [2024-11-09 05:47:37,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 85 SyntacticMatches, 18 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=164, Invalid=486, Unknown=0, NotChecked=0, Total=650 [2024-11-09 05:47:37,831 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 154 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:47:37,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 64 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 05:47:37,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-11-09 05:47:37,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 190. [2024-11-09 05:47:37,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 131 states have (on average 1.381679389312977) internal successors, (181), 158 states have internal predecessors, (181), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-09 05:47:37,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 237 transitions. [2024-11-09 05:47:37,862 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 237 transitions. Word has length 56 [2024-11-09 05:47:37,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:47:37,863 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 237 transitions. [2024-11-09 05:47:37,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-09 05:47:37,863 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 237 transitions. [2024-11-09 05:47:37,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-09 05:47:37,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:47:37,865 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:47:37,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 05:47:38,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-09 05:47:38,069 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:47:38,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:47:38,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1613296994, now seen corresponding path program 1 times [2024-11-09 05:47:38,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:47:38,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651611640] [2024-11-09 05:47:38,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:38,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:47:38,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:47:38,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1920858877] [2024-11-09 05:47:38,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:38,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:47:38,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:47:38,100 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:47:38,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 05:47:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:47:38,163 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:47:38,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:47:38,465 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-09 05:47:38,465 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:47:38,541 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:47:38,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651611640] [2024-11-09 05:47:38,541 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:47:38,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920858877] [2024-11-09 05:47:38,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1920858877] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:47:38,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1668652897] [2024-11-09 05:47:38,544 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2024-11-09 05:47:38,545 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:47:38,545 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:47:38,546 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:47:38,546 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:47:42,495 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:47:42,496 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:47:42,498 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:47:45,591 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6023#(exists ((|v_ULTIMATE.start_main_~a~0#1_52| Int) (|v_ULTIMATE.start_main_~y~0#1_73| Int)) (and (<= 2 |ULTIMATE.start_main_~x~0#1|) (<= 1 |#StackHeapBarrier|) (<= 0 (+ 4611686018427387904 (div |ULTIMATE.start_main_~b~0#1| 2))) (<= 1 |v_ULTIMATE.start_main_~y~0#1_73|) (<= 2 |ULTIMATE.start_main_~r~0#1|) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~y~0#1_73| |v_ULTIMATE.start_main_~a~0#1_52|)) 0) (<= |ULTIMATE.start_main_~r~0#1| 20) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |v_ULTIMATE.start_main_~y~0#1_73| 20) (<= (div |ULTIMATE.start_main_~b~0#1| 2) 40) (= (mod |v_ULTIMATE.start_main_~a~0#1_52| 2) 0) (<= |ULTIMATE.start_main_~x~0#1| 20) (= (mod |ULTIMATE.start_main_~b~0#1| 2) 0)))' at error location [2024-11-09 05:47:45,591 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:47:45,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:47:45,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-09 05:47:45,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395963110] [2024-11-09 05:47:45,592 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:47:45,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 05:47:45,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:47:45,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 05:47:45,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=977, Unknown=0, NotChecked=0, Total=1190 [2024-11-09 05:47:45,593 INFO L87 Difference]: Start difference. First operand 190 states and 237 transitions. Second operand has 9 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-09 05:47:46,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:47:46,184 INFO L93 Difference]: Finished difference Result 201 states and 258 transitions. [2024-11-09 05:47:46,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 05:47:46,184 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 58 [2024-11-09 05:47:46,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:47:46,186 INFO L225 Difference]: With dead ends: 201 [2024-11-09 05:47:46,186 INFO L226 Difference]: Without dead ends: 194 [2024-11-09 05:47:46,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 81 SyntacticMatches, 8 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=287, Invalid=1353, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 05:47:46,187 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 214 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:47:46,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 145 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:47:46,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-09 05:47:46,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 183. [2024-11-09 05:47:46,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 131 states have (on average 1.282442748091603) internal successors, (168), 151 states have internal predecessors, (168), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-09 05:47:46,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 224 transitions. [2024-11-09 05:47:46,224 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 224 transitions. Word has length 58 [2024-11-09 05:47:46,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:47:46,224 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 224 transitions. [2024-11-09 05:47:46,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-09 05:47:46,225 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 224 transitions. [2024-11-09 05:47:46,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 05:47:46,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:47:46,226 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:47:46,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-09 05:47:46,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:47:46,426 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:47:46,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:47:46,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1527400814, now seen corresponding path program 1 times [2024-11-09 05:47:46,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:47:46,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000133245] [2024-11-09 05:47:46,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:46,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:47:46,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:47:46,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1772773788] [2024-11-09 05:47:46,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:46,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:47:46,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:47:46,452 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:47:46,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 05:47:46,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:47:46,530 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:47:46,533 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:47:46,853 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-09 05:47:46,854 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:47:47,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:47:47,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000133245] [2024-11-09 05:47:47,178 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:47:47,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772773788] [2024-11-09 05:47:47,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772773788] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:47:47,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [166186838] [2024-11-09 05:47:47,181 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2024-11-09 05:47:47,181 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:47:47,181 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:47:47,182 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:47:47,182 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:47:50,211 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:47:50,213 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:47:50,215 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:47:53,514 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6740#(exists ((|v_ULTIMATE.start_main_~a~0#1_60| Int) (|v_ULTIMATE.start_main_~y~0#1_74| Int)) (and (<= 2 |ULTIMATE.start_main_~x~0#1|) (<= 1 |#StackHeapBarrier|) (<= (div |v_ULTIMATE.start_main_~a~0#1_60| 2) 4611686018427387903) (<= (div (* (- 1) |ULTIMATE.start_main_~b~0#1|) 2) 4611686018427387904) (= (mod |v_ULTIMATE.start_main_~a~0#1_60| 2) 0) (<= 2 |ULTIMATE.start_main_~r~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 20) (= |ULTIMATE.start_main_~q~0#1| 0) (<= 1 |v_ULTIMATE.start_main_~y~0#1_74|) (<= 0 (+ 40 (div (* (- 1) |ULTIMATE.start_main_~b~0#1|) 2))) (<= |v_ULTIMATE.start_main_~y~0#1_74| 20) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_74| |v_ULTIMATE.start_main_~a~0#1_60|)) (<= |ULTIMATE.start_main_~x~0#1| 20) (= (mod |ULTIMATE.start_main_~b~0#1| 2) 0)))' at error location [2024-11-09 05:47:53,514 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:47:53,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:47:53,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-09 05:47:53,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551632831] [2024-11-09 05:47:53,514 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:47:53,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 05:47:53,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:47:53,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 05:47:53,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=982, Unknown=0, NotChecked=0, Total=1190 [2024-11-09 05:47:53,516 INFO L87 Difference]: Start difference. First operand 183 states and 224 transitions. Second operand has 9 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-09 05:47:54,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:47:54,210 INFO L93 Difference]: Finished difference Result 346 states and 464 transitions. [2024-11-09 05:47:54,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:47:54,211 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 59 [2024-11-09 05:47:54,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:47:54,213 INFO L225 Difference]: With dead ends: 346 [2024-11-09 05:47:54,214 INFO L226 Difference]: Without dead ends: 342 [2024-11-09 05:47:54,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 84 SyntacticMatches, 8 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=290, Invalid=1432, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 05:47:54,215 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 518 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:47:54,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 206 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:47:54,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-11-09 05:47:54,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 260. [2024-11-09 05:47:54,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 194 states have (on average 1.2989690721649485) internal successors, (252), 214 states have internal predecessors, (252), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-09 05:47:54,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 336 transitions. [2024-11-09 05:47:54,261 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 336 transitions. Word has length 59 [2024-11-09 05:47:54,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:47:54,262 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 336 transitions. [2024-11-09 05:47:54,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-09 05:47:54,262 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 336 transitions. [2024-11-09 05:47:54,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 05:47:54,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:47:54,263 INFO L215 NwaCegarLoop]: trace histogram [9, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:47:54,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-09 05:47:54,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-09 05:47:54,468 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:47:54,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:47:54,469 INFO L85 PathProgramCache]: Analyzing trace with hash 122231412, now seen corresponding path program 1 times [2024-11-09 05:47:54,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:47:54,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100377998] [2024-11-09 05:47:54,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:54,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:47:54,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:47:54,604 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-09 05:47:54,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:47:54,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100377998] [2024-11-09 05:47:54,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100377998] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:47:54,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68196157] [2024-11-09 05:47:54,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:54,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:47:54,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:47:54,608 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:47:54,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 05:47:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:47:54,674 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:47:54,676 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:47:54,758 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-09 05:47:54,759 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:47:54,935 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-09 05:47:54,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68196157] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:47:54,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [641434773] [2024-11-09 05:47:54,941 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2024-11-09 05:47:54,941 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:47:54,942 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:47:54,942 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:47:54,942 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:47:57,656 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:47:57,657 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:47:57,658 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:48:00,114 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7969#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 20) (= |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~q~0#1| 0) (<= 1 |ULTIMATE.start_main_~r~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 20))' at error location [2024-11-09 05:48:00,114 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:48:00,114 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:48:00,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 10 [2024-11-09 05:48:00,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724138729] [2024-11-09 05:48:00,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:48:00,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:48:00,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:48:00,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:48:00,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=869, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 05:48:00,116 INFO L87 Difference]: Start difference. First operand 260 states and 336 transitions. Second operand has 11 states, 10 states have (on average 10.1) internal successors, (101), 11 states have internal predecessors, (101), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-09 05:48:00,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:48:00,927 INFO L93 Difference]: Finished difference Result 441 states and 558 transitions. [2024-11-09 05:48:00,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 05:48:00,928 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.1) internal successors, (101), 11 states have internal predecessors, (101), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) Word has length 74 [2024-11-09 05:48:00,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:48:00,930 INFO L225 Difference]: With dead ends: 441 [2024-11-09 05:48:00,930 INFO L226 Difference]: Without dead ends: 439 [2024-11-09 05:48:00,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 191 SyntacticMatches, 8 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 801 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=434, Invalid=1546, Unknown=0, NotChecked=0, Total=1980 [2024-11-09 05:48:00,933 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 712 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:48:00,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 340 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 05:48:00,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-09 05:48:00,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 315. [2024-11-09 05:48:00,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 239 states have (on average 1.3096234309623431) internal successors, (313), 258 states have internal predecessors, (313), 53 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-09 05:48:00,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 419 transitions. [2024-11-09 05:48:00,995 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 419 transitions. Word has length 74 [2024-11-09 05:48:00,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:48:00,996 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 419 transitions. [2024-11-09 05:48:00,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.1) internal successors, (101), 11 states have internal predecessors, (101), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-09 05:48:00,996 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 419 transitions. [2024-11-09 05:48:00,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 05:48:01,000 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:48:01,001 INFO L215 NwaCegarLoop]: trace histogram [9, 3, 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, 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 05:48:01,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-09 05:48:01,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 05:48:01,202 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:48:01,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:48:01,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1500272972, now seen corresponding path program 1 times [2024-11-09 05:48:01,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:48:01,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719217700] [2024-11-09 05:48:01,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:01,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:48:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:01,290 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-09 05:48:01,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:48:01,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719217700] [2024-11-09 05:48:01,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719217700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:48:01,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:48:01,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:48:01,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356421376] [2024-11-09 05:48:01,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:48:01,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:48:01,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:48:01,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:48:01,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:48:01,294 INFO L87 Difference]: Start difference. First operand 315 states and 419 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-09 05:48:01,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:48:01,412 INFO L93 Difference]: Finished difference Result 315 states and 419 transitions. [2024-11-09 05:48:01,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:48:01,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 76 [2024-11-09 05:48:01,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:48:01,415 INFO L225 Difference]: With dead ends: 315 [2024-11-09 05:48:01,415 INFO L226 Difference]: Without dead ends: 314 [2024-11-09 05:48:01,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:48:01,416 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 16 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:48:01,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 131 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:48:01,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-09 05:48:01,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 313. [2024-11-09 05:48:01,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 238 states have (on average 1.3025210084033614) internal successors, (310), 256 states have internal predecessors, (310), 53 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-09 05:48:01,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 416 transitions. [2024-11-09 05:48:01,464 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 416 transitions. Word has length 76 [2024-11-09 05:48:01,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:48:01,465 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 416 transitions. [2024-11-09 05:48:01,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-09 05:48:01,465 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 416 transitions. [2024-11-09 05:48:01,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 05:48:01,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:48:01,467 INFO L215 NwaCegarLoop]: trace histogram [9, 3, 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, 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 05:48:01,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 05:48:01,467 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:48:01,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:48:01,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1346681522, now seen corresponding path program 1 times [2024-11-09 05:48:01,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:48:01,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923776079] [2024-11-09 05:48:01,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:01,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:48:01,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:01,578 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-09 05:48:01,578 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:48:01,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923776079] [2024-11-09 05:48:01,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923776079] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:48:01,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126144104] [2024-11-09 05:48:01,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:01,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:48:01,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:48:01,581 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:48:01,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 05:48:01,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:01,635 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:48:01,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:48:01,792 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-09 05:48:01,792 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:48:01,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126144104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:48:01,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:48:01,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-09 05:48:01,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263870483] [2024-11-09 05:48:01,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:48:01,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:48:01,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:48:01,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:48:01,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:48:01,794 INFO L87 Difference]: Start difference. First operand 313 states and 416 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-09 05:48:02,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:48:02,071 INFO L93 Difference]: Finished difference Result 338 states and 460 transitions. [2024-11-09 05:48:02,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:48:02,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 78 [2024-11-09 05:48:02,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:48:02,074 INFO L225 Difference]: With dead ends: 338 [2024-11-09 05:48:02,074 INFO L226 Difference]: Without dead ends: 337 [2024-11-09 05:48:02,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:48:02,075 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 51 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:48:02,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 100 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:48:02,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-09 05:48:02,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 312. [2024-11-09 05:48:02,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 238 states have (on average 1.2899159663865547) internal successors, (307), 255 states have internal predecessors, (307), 53 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-09 05:48:02,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 413 transitions. [2024-11-09 05:48:02,122 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 413 transitions. Word has length 78 [2024-11-09 05:48:02,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:48:02,123 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 413 transitions. [2024-11-09 05:48:02,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-09 05:48:02,123 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 413 transitions. [2024-11-09 05:48:02,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-09 05:48:02,124 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:48:02,124 INFO L215 NwaCegarLoop]: trace histogram [9, 3, 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, 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 05:48:02,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-09 05:48:02,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 05:48:02,325 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:48:02,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:48:02,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1202545902, now seen corresponding path program 1 times [2024-11-09 05:48:02,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:48:02,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150692648] [2024-11-09 05:48:02,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:02,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:48:02,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:02,428 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-09 05:48:02,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:48:02,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150692648] [2024-11-09 05:48:02,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150692648] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:48:02,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100610618] [2024-11-09 05:48:02,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:02,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:48:02,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:48:02,432 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:48:02,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 05:48:02,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:02,493 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:48:02,495 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:48:02,660 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-09 05:48:02,660 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:48:02,822 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-09 05:48:02,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100610618] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:48:02,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1404732985] [2024-11-09 05:48:02,825 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:48:02,825 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:48:02,825 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:48:02,826 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:48:02,826 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:48:05,442 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:48:05,443 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:48:05,444 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:48:08,560 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11247#(and (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~b~0#1|) (exists ((|v_ULTIMATE.start_main_~a~0#1_78| Int) (|v_ULTIMATE.start_main_~q~0#1_54| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (= |v_ULTIMATE.start_main_~q~0#1_54| 0) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 9223372036854775808 |v_ULTIMATE.start_main_~a~0#1_78|) (<= |ULTIMATE.start_main_~y~0#1| 20) (<= |ULTIMATE.start_main_~x~0#1| 20) (= (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|) |ULTIMATE.start_main_~x~0#1|))))' at error location [2024-11-09 05:48:08,560 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:48:08,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:48:08,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-09 05:48:08,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137049822] [2024-11-09 05:48:08,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:48:08,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:48:08,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:48:08,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:48:08,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=1154, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 05:48:08,562 INFO L87 Difference]: Start difference. First operand 312 states and 413 transitions. Second operand has 11 states, 10 states have (on average 12.7) internal successors, (127), 11 states have internal predecessors, (127), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-09 05:48:09,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:48:09,341 INFO L93 Difference]: Finished difference Result 611 states and 836 transitions. [2024-11-09 05:48:09,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:48:09,342 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.7) internal successors, (127), 11 states have internal predecessors, (127), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) Word has length 79 [2024-11-09 05:48:09,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:48:09,347 INFO L225 Difference]: With dead ends: 611 [2024-11-09 05:48:09,347 INFO L226 Difference]: Without dead ends: 609 [2024-11-09 05:48:09,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 194 SyntacticMatches, 9 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 817 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=325, Invalid=1481, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 05:48:09,349 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 282 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:48:09,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 239 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 05:48:09,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2024-11-09 05:48:09,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 471. [2024-11-09 05:48:09,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 370 states have (on average 1.2837837837837838) internal successors, (475), 387 states have internal predecessors, (475), 80 states have call successors, (80), 3 states have call predecessors, (80), 3 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-09 05:48:09,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 635 transitions. [2024-11-09 05:48:09,434 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 635 transitions. Word has length 79 [2024-11-09 05:48:09,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:48:09,434 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 635 transitions. [2024-11-09 05:48:09,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.7) internal successors, (127), 11 states have internal predecessors, (127), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-09 05:48:09,435 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 635 transitions. [2024-11-09 05:48:09,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-09 05:48:09,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:48:09,436 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:48:09,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-09 05:48:09,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:48:09,640 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:48:09,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:48:09,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1413434917, now seen corresponding path program 1 times [2024-11-09 05:48:09,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:48:09,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311655806] [2024-11-09 05:48:09,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:09,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:48:09,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:48:09,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [136236749] [2024-11-09 05:48:09,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:09,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:48:09,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:48:09,668 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:48:09,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 05:48:09,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:09,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 05:48:09,745 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:48:10,290 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-09 05:48:10,290 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:48:10,458 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:48:10,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311655806] [2024-11-09 05:48:10,458 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:48:10,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136236749] [2024-11-09 05:48:10,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136236749] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:48:10,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [683430949] [2024-11-09 05:48:10,461 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:48:10,461 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:48:10,462 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:48:10,462 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:48:10,462 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:48:22,801 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:48:22,805 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:48:22,807 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:48:27,334 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12927#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (exists ((|v_ULTIMATE.start_main_~y~0#1_75| Int) (|v_ULTIMATE.start_main_~q~0#1_62| Int)) (and (<= |v_ULTIMATE.start_main_~y~0#1_75| 20) (= |ULTIMATE.start_main_~b~0#1| (* |v_ULTIMATE.start_main_~y~0#1_75| |ULTIMATE.start_main_~a~0#1|)) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_62| |v_ULTIMATE.start_main_~y~0#1_75|)) 0) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_62| 9223372036854775808)) (<= 1 |v_ULTIMATE.start_main_~y~0#1_75|))) (<= 0 (+ |ULTIMATE.start_main_~b~0#1| 4611686018427387901)) (<= |ULTIMATE.start_main_~r~0#1| 4611686018427387902) (<= 0 (+ 4611686018427387902 |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~x~0#1| 20))' at error location [2024-11-09 05:48:27,334 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:48:27,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:48:27,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 05:48:27,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495490011] [2024-11-09 05:48:27,335 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:48:27,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:48:27,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:48:27,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:48:27,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=2183, Unknown=0, NotChecked=0, Total=2450 [2024-11-09 05:48:27,337 INFO L87 Difference]: Start difference. First operand 471 states and 635 transitions. Second operand has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-09 05:48:28,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:48:28,386 INFO L93 Difference]: Finished difference Result 580 states and 783 transitions. [2024-11-09 05:48:28,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 05:48:28,387 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) Word has length 86 [2024-11-09 05:48:28,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:48:28,389 INFO L225 Difference]: With dead ends: 580 [2024-11-09 05:48:28,390 INFO L226 Difference]: Without dead ends: 577 [2024-11-09 05:48:28,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 125 SyntacticMatches, 13 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1540 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=351, Invalid=3189, Unknown=0, NotChecked=0, Total=3540 [2024-11-09 05:48:28,393 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 187 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:48:28,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 294 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:48:28,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-11-09 05:48:28,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 559. [2024-11-09 05:48:28,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 442 states have (on average 1.2850678733031675) internal successors, (568), 459 states have internal predecessors, (568), 96 states have call successors, (96), 3 states have call predecessors, (96), 3 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-09 05:48:28,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 760 transitions. [2024-11-09 05:48:28,494 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 760 transitions. Word has length 86 [2024-11-09 05:48:28,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:48:28,498 INFO L471 AbstractCegarLoop]: Abstraction has 559 states and 760 transitions. [2024-11-09 05:48:28,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-09 05:48:28,499 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 760 transitions. [2024-11-09 05:48:28,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 05:48:28,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:48:28,500 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:48:28,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-09 05:48:28,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:48:28,702 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:48:28,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:48:28,702 INFO L85 PathProgramCache]: Analyzing trace with hash 866809521, now seen corresponding path program 1 times [2024-11-09 05:48:28,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:48:28,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068546768] [2024-11-09 05:48:28,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:28,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:48:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:48:28,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [82570708] [2024-11-09 05:48:28,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:28,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:48:28,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:48:28,748 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:48:28,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 05:48:28,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:28,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 05:48:28,821 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:48:29,353 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-09 05:48:29,354 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:48:29,838 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:48:29,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068546768] [2024-11-09 05:48:29,838 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:48:29,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82570708] [2024-11-09 05:48:29,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82570708] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:48:29,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1728521308] [2024-11-09 05:48:29,840 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:48:29,841 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:48:29,841 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:48:29,841 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:48:29,842 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:48:41,157 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:48:41,158 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:48:41,159 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:48:45,491 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14704#(exists ((|v_ULTIMATE.start_main_~y~0#1_76| Int) (|v_ULTIMATE.start_main_~q~0#1_70| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_70| |v_ULTIMATE.start_main_~y~0#1_76|)) (<= 1 |v_ULTIMATE.start_main_~y~0#1_76|) (<= |v_ULTIMATE.start_main_~y~0#1_76| 20) (<= |ULTIMATE.start_main_~x~0#1| 20)))' at error location [2024-11-09 05:48:45,491 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:48:45,491 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:48:45,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 05:48:45,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204251859] [2024-11-09 05:48:45,492 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:48:45,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:48:45,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:48:45,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:48:45,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=297, Invalid=2153, Unknown=0, NotChecked=0, Total=2450 [2024-11-09 05:48:45,494 INFO L87 Difference]: Start difference. First operand 559 states and 760 transitions. Second operand has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 11 states have internal predecessors, (51), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-09 05:48:46,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:48:46,520 INFO L93 Difference]: Finished difference Result 580 states and 776 transitions. [2024-11-09 05:48:46,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:48:46,521 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 11 states have internal predecessors, (51), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) Word has length 87 [2024-11-09 05:48:46,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:48:46,524 INFO L225 Difference]: With dead ends: 580 [2024-11-09 05:48:46,524 INFO L226 Difference]: Without dead ends: 577 [2024-11-09 05:48:46,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 128 SyntacticMatches, 13 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1737 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=360, Invalid=2946, Unknown=0, NotChecked=0, Total=3306 [2024-11-09 05:48:46,527 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 190 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:48:46,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 282 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:48:46,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-11-09 05:48:46,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 560. [2024-11-09 05:48:46,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 443 states have (on average 1.2708803611738149) internal successors, (563), 460 states have internal predecessors, (563), 96 states have call successors, (96), 3 states have call predecessors, (96), 3 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-09 05:48:46,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 755 transitions. [2024-11-09 05:48:46,634 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 755 transitions. Word has length 87 [2024-11-09 05:48:46,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:48:46,634 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 755 transitions. [2024-11-09 05:48:46,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 11 states have internal predecessors, (51), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-09 05:48:46,635 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 755 transitions. [2024-11-09 05:48:46,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-09 05:48:46,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:48:46,636 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:48:46,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-09 05:48:46,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:48:46,837 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:48:46,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:48:46,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1101291431, now seen corresponding path program 1 times [2024-11-09 05:48:46,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:48:46,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432373043] [2024-11-09 05:48:46,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:46,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:48:46,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:46,975 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-09 05:48:46,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:48:46,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432373043] [2024-11-09 05:48:46,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432373043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:48:46,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:48:46,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:48:46,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455356836] [2024-11-09 05:48:46,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:48:46,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:48:46,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:48:46,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:48:46,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:48:46,978 INFO L87 Difference]: Start difference. First operand 560 states and 755 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-09 05:48:47,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:48:47,981 INFO L93 Difference]: Finished difference Result 563 states and 755 transitions. [2024-11-09 05:48:47,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 05:48:47,981 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 88 [2024-11-09 05:48:47,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:48:47,985 INFO L225 Difference]: With dead ends: 563 [2024-11-09 05:48:47,985 INFO L226 Difference]: Without dead ends: 560 [2024-11-09 05:48:47,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-11-09 05:48:47,986 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 83 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:48:47,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 175 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:48:47,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-09 05:48:48,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 557. [2024-11-09 05:48:48,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 443 states have (on average 1.2257336343115124) internal successors, (543), 457 states have internal predecessors, (543), 96 states have call successors, (96), 3 states have call predecessors, (96), 3 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-09 05:48:48,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 735 transitions. [2024-11-09 05:48:48,086 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 735 transitions. Word has length 88 [2024-11-09 05:48:48,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:48:48,087 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 735 transitions. [2024-11-09 05:48:48,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-09 05:48:48,087 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 735 transitions. [2024-11-09 05:48:48,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-09 05:48:48,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:48:48,089 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:48:48,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 05:48:48,089 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:48:48,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:48:48,090 INFO L85 PathProgramCache]: Analyzing trace with hash -219703949, now seen corresponding path program 1 times [2024-11-09 05:48:48,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:48:48,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217586731] [2024-11-09 05:48:48,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:48,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:48:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:48:48,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2143716454] [2024-11-09 05:48:48,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:48,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:48:48,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:48:48,116 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:48:48,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 05:48:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:48,188 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 05:48:48,190 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:48:48,635 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 9 proven. 23 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-09 05:48:48,636 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:48:48,686 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:48:48,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217586731] [2024-11-09 05:48:48,687 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:48:48,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143716454] [2024-11-09 05:48:48,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143716454] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:48:48,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [320561248] [2024-11-09 05:48:48,689 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:48:48,689 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:48:48,690 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:48:48,690 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:48:48,690 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:48:59,570 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:48:59,572 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:48:59,573 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:49:05,053 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '17857#(exists ((|v_ULTIMATE.start_main_~y~0#1_79| Int) (|v_ULTIMATE.start_main_~r~0#1_68| Int) (|v_ULTIMATE.start_main_~q~0#1_77| Int)) (and (<= 1 |v_ULTIMATE.start_main_~y~0#1_79|) (<= 1 |#StackHeapBarrier|) (<= |v_ULTIMATE.start_main_~y~0#1_79| 20) (<= (* |v_ULTIMATE.start_main_~q~0#1_77| |v_ULTIMATE.start_main_~y~0#1_79|) 9223372036854775807) (<= |ULTIMATE.start_main_~x~0#1| 20) (<= 9223372036854775808 (+ |v_ULTIMATE.start_main_~r~0#1_68| (* |v_ULTIMATE.start_main_~q~0#1_77| |v_ULTIMATE.start_main_~y~0#1_79|)))))' at error location [2024-11-09 05:49:05,053 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:49:05,053 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:49:05,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 05:49:05,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141720828] [2024-11-09 05:49:05,054 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:49:05,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:49:05,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:49:05,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:49:05,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=2067, Unknown=0, NotChecked=0, Total=2352 [2024-11-09 05:49:05,056 INFO L87 Difference]: Start difference. First operand 557 states and 735 transitions. Second operand has 11 states, 8 states have (on average 6.75) internal successors, (54), 11 states have internal predecessors, (54), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-09 05:49:06,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:49:06,180 INFO L93 Difference]: Finished difference Result 575 states and 745 transitions. [2024-11-09 05:49:06,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:49:06,180 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 6.75) internal successors, (54), 11 states have internal predecessors, (54), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 89 [2024-11-09 05:49:06,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:49:06,183 INFO L225 Difference]: With dead ends: 575 [2024-11-09 05:49:06,183 INFO L226 Difference]: Without dead ends: 568 [2024-11-09 05:49:06,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 122 SyntacticMatches, 13 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1458 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=330, Invalid=2750, Unknown=0, NotChecked=0, Total=3080 [2024-11-09 05:49:06,185 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 175 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:49:06,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 401 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:49:06,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-09 05:49:06,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 555. [2024-11-09 05:49:06,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 441 states have (on average 1.2108843537414966) internal successors, (534), 455 states have internal predecessors, (534), 96 states have call successors, (96), 3 states have call predecessors, (96), 3 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-09 05:49:06,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 726 transitions. [2024-11-09 05:49:06,287 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 726 transitions. Word has length 89 [2024-11-09 05:49:06,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:49:06,288 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 726 transitions. [2024-11-09 05:49:06,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 6.75) internal successors, (54), 11 states have internal predecessors, (54), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-09 05:49:06,288 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 726 transitions. [2024-11-09 05:49:06,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-09 05:49:06,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:49:06,290 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 05:49:06,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-09 05:49:06,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:49:06,491 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:49:06,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:49:06,491 INFO L85 PathProgramCache]: Analyzing trace with hash -482794382, now seen corresponding path program 2 times [2024-11-09 05:49:06,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:49:06,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625823890] [2024-11-09 05:49:06,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:49:06,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:49:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:49:06,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [455927489] [2024-11-09 05:49:06,508 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:49:06,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:49:06,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:49:06,511 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:49:06,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 05:49:06,567 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 05:49:06,567 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:49:06,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 05:49:06,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:49:06,864 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 13 proven. 11 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-09 05:49:06,865 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:49:08,099 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:49:08,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625823890] [2024-11-09 05:49:08,099 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:49:08,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455927489] [2024-11-09 05:49:08,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455927489] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:49:08,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1082263656] [2024-11-09 05:49:08,101 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2024-11-09 05:49:08,101 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:49:08,102 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:49:08,102 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:49:08,102 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:49:10,502 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:49:10,503 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:49:10,504 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:49:14,402 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '19602#(exists ((|v_ULTIMATE.start_main_~a~0#1_154| Int) (|v_ULTIMATE.start_main_~y~0#1_82| Int)) (and (<= 2 |ULTIMATE.start_main_~x~0#1|) (<= |v_ULTIMATE.start_main_~y~0#1_82| 20) (= (mod |v_ULTIMATE.start_main_~a~0#1_154| 2) 0) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_154| |v_ULTIMATE.start_main_~y~0#1_82|)) (<= 1 |#StackHeapBarrier|) (<= (div (* (- 1) |ULTIMATE.start_main_~b~0#1|) 2) 4611686018427387904) (<= 2 |ULTIMATE.start_main_~r~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 20) (<= 1 |v_ULTIMATE.start_main_~y~0#1_82|) (= |ULTIMATE.start_main_~q~0#1| 0) (<= (div |v_ULTIMATE.start_main_~a~0#1_154| 2) 4611686018427387903) (<= 0 (+ 40 (div (* (- 1) |ULTIMATE.start_main_~b~0#1|) 2))) (<= |ULTIMATE.start_main_~x~0#1| 20) (= (mod |ULTIMATE.start_main_~b~0#1| 2) 0)))' at error location [2024-11-09 05:49:14,402 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:49:14,402 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:49:14,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-09 05:49:14,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620187843] [2024-11-09 05:49:14,403 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:49:14,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:49:14,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:49:14,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:49:14,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=1015, Unknown=1, NotChecked=0, Total=1260 [2024-11-09 05:49:14,404 INFO L87 Difference]: Start difference. First operand 555 states and 726 transitions. Second operand has 10 states, 7 states have (on average 6.142857142857143) internal successors, (43), 9 states have internal predecessors, (43), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-09 05:49:15,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:49:15,521 INFO L93 Difference]: Finished difference Result 577 states and 753 transitions. [2024-11-09 05:49:15,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 05:49:15,522 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 6.142857142857143) internal successors, (43), 9 states have internal predecessors, (43), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 89 [2024-11-09 05:49:15,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:49:15,525 INFO L225 Difference]: With dead ends: 577 [2024-11-09 05:49:15,525 INFO L226 Difference]: Without dead ends: 573 [2024-11-09 05:49:15,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 141 SyntacticMatches, 10 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=326, Invalid=1313, Unknown=1, NotChecked=0, Total=1640 [2024-11-09 05:49:15,527 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 195 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:49:15,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 151 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 05:49:15,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2024-11-09 05:49:15,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 548. [2024-11-09 05:49:15,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 435 states have (on average 1.2) internal successors, (522), 449 states have internal predecessors, (522), 95 states have call successors, (95), 3 states have call predecessors, (95), 3 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-09 05:49:15,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 712 transitions. [2024-11-09 05:49:15,636 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 712 transitions. Word has length 89 [2024-11-09 05:49:15,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:49:15,636 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 712 transitions. [2024-11-09 05:49:15,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 6.142857142857143) internal successors, (43), 9 states have internal predecessors, (43), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-09 05:49:15,637 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 712 transitions. [2024-11-09 05:49:15,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-09 05:49:15,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:49:15,638 INFO L215 NwaCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:49:15,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-09 05:49:15,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-09 05:49:15,839 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:49:15,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:49:15,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1741192822, now seen corresponding path program 1 times [2024-11-09 05:49:15,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:49:15,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130005990] [2024-11-09 05:49:15,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:49:15,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:49:15,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:49:15,901 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-09 05:49:15,901 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:49:15,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130005990] [2024-11-09 05:49:15,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130005990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:49:15,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:49:15,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:49:15,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56138580] [2024-11-09 05:49:15,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:49:15,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:49:15,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:49:15,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:49:15,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:49:15,903 INFO L87 Difference]: Start difference. First operand 548 states and 712 transitions. Second operand has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 05:49:16,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:49:16,379 INFO L93 Difference]: Finished difference Result 548 states and 712 transitions. [2024-11-09 05:49:16,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:49:16,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 100 [2024-11-09 05:49:16,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:49:16,382 INFO L225 Difference]: With dead ends: 548 [2024-11-09 05:49:16,382 INFO L226 Difference]: Without dead ends: 546 [2024-11-09 05:49:16,383 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 05:49:16,383 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 13 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:49:16,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 50 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:49:16,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2024-11-09 05:49:16,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 546. [2024-11-09 05:49:16,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 435 states have (on average 1.174712643678161) internal successors, (511), 447 states have internal predecessors, (511), 95 states have call successors, (95), 3 states have call predecessors, (95), 3 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-09 05:49:16,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 701 transitions. [2024-11-09 05:49:16,498 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 701 transitions. Word has length 100 [2024-11-09 05:49:16,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:49:16,498 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 701 transitions. [2024-11-09 05:49:16,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 05:49:16,499 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 701 transitions. [2024-11-09 05:49:16,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-09 05:49:16,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:49:16,500 INFO L215 NwaCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:49:16,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 05:49:16,500 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:49:16,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:49:16,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1857597447, now seen corresponding path program 1 times [2024-11-09 05:49:16,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:49:16,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816886313] [2024-11-09 05:49:16,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:49:16,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:49:16,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:49:16,550 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-09 05:49:16,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:49:16,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816886313] [2024-11-09 05:49:16,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816886313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:49:16,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:49:16,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:49:16,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971379584] [2024-11-09 05:49:16,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:49:16,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:49:16,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:49:16,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:49:16,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:49:16,554 INFO L87 Difference]: Start difference. First operand 546 states and 701 transitions. Second operand has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 05:49:17,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:49:17,103 INFO L93 Difference]: Finished difference Result 546 states and 701 transitions. [2024-11-09 05:49:17,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:49:17,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2024-11-09 05:49:17,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:49:17,105 INFO L225 Difference]: With dead ends: 546 [2024-11-09 05:49:17,105 INFO L226 Difference]: Without dead ends: 544 [2024-11-09 05:49:17,105 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 05:49:17,106 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 14 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:49:17,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 51 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:49:17,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2024-11-09 05:49:17,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 544. [2024-11-09 05:49:17,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 435 states have (on average 1.1494252873563218) internal successors, (500), 445 states have internal predecessors, (500), 95 states have call successors, (95), 3 states have call predecessors, (95), 3 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-09 05:49:17,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 690 transitions. [2024-11-09 05:49:17,220 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 690 transitions. Word has length 101 [2024-11-09 05:49:17,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:49:17,220 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 690 transitions. [2024-11-09 05:49:17,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 05:49:17,221 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 690 transitions. [2024-11-09 05:49:17,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 05:49:17,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:49:17,222 INFO L215 NwaCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:49:17,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-09 05:49:17,224 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:49:17,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:49:17,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1555245911, now seen corresponding path program 1 times [2024-11-09 05:49:17,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:49:17,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970787473] [2024-11-09 05:49:17,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:49:17,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:49:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:49:17,284 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-09 05:49:17,285 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:49:17,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970787473] [2024-11-09 05:49:17,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970787473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:49:17,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:49:17,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:49:17,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012693400] [2024-11-09 05:49:17,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:49:17,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:49:17,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:49:17,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:49:17,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:49:17,287 INFO L87 Difference]: Start difference. First operand 544 states and 690 transitions. Second operand has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 05:49:17,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:49:17,599 INFO L93 Difference]: Finished difference Result 544 states and 690 transitions. [2024-11-09 05:49:17,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:49:17,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 103 [2024-11-09 05:49:17,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:49:17,601 INFO L225 Difference]: With dead ends: 544 [2024-11-09 05:49:17,601 INFO L226 Difference]: Without dead ends: 538 [2024-11-09 05:49:17,602 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 05:49:17,602 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 8 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:49:17,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 57 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:49:17,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-09 05:49:17,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 451. [2024-11-09 05:49:17,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 360 states have (on average 1.113888888888889) internal successors, (401), 368 states have internal predecessors, (401), 79 states have call successors, (79), 3 states have call predecessors, (79), 3 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-09 05:49:17,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 559 transitions. [2024-11-09 05:49:17,698 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 559 transitions. Word has length 103 [2024-11-09 05:49:17,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:49:17,698 INFO L471 AbstractCegarLoop]: Abstraction has 451 states and 559 transitions. [2024-11-09 05:49:17,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 05:49:17,699 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 559 transitions. [2024-11-09 05:49:17,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-09 05:49:17,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:49:17,701 INFO L215 NwaCegarLoop]: trace histogram [14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:49:17,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-09 05:49:17,701 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:49:17,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:49:17,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1276923743, now seen corresponding path program 2 times [2024-11-09 05:49:17,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:49:17,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952755609] [2024-11-09 05:49:17,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:49:17,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:49:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:49:17,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [851868048] [2024-11-09 05:49:17,729 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:49:17,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:49:17,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:49:17,731 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:49:17,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-09 05:49:17,882 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 05:49:17,882 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:49:17,883 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 05:49:17,886 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:49:18,340 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2024-11-09 05:49:18,340 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:49:21,397 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:49:21,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952755609] [2024-11-09 05:49:21,397 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:49:21,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851868048] [2024-11-09 05:49:21,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851868048] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:49:21,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1818227660] [2024-11-09 05:49:21,399 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:49:21,399 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:49:21,400 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:49:21,400 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:49:21,400 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:49:32,315 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:49:32,317 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:49:32,318 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:49:39,001 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '25376#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~q~0#1_85| Int) (|v_ULTIMATE.start_main_~y~0#1_85| Int)) (and (= |ULTIMATE.start_main_~b~0#1| (* |v_ULTIMATE.start_main_~y~0#1_85| |ULTIMATE.start_main_~a~0#1|)) (<= |v_ULTIMATE.start_main_~y~0#1_85| 20) (<= 1 |v_ULTIMATE.start_main_~y~0#1_85|) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_85| 9223372036854775808)) (<= (+ (* |v_ULTIMATE.start_main_~q~0#1_85| |v_ULTIMATE.start_main_~y~0#1_85|) 9223372036854775809) 0))) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= 0 (+ |ULTIMATE.start_main_~b~0#1| 4611686018427387901)) (<= |ULTIMATE.start_main_~r~0#1| 4611686018427387902) (<= 0 (+ 4611686018427387902 |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~x~0#1| 20))' at error location [2024-11-09 05:49:39,002 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:49:39,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:49:39,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-09 05:49:39,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412359887] [2024-11-09 05:49:39,002 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:49:39,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:49:39,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:49:39,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:49:39,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=2273, Unknown=0, NotChecked=0, Total=2550 [2024-11-09 05:49:39,004 INFO L87 Difference]: Start difference. First operand 451 states and 559 transitions. Second operand has 10 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-09 05:49:39,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:49:39,830 INFO L93 Difference]: Finished difference Result 465 states and 574 transitions. [2024-11-09 05:49:39,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 05:49:39,830 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 116 [2024-11-09 05:49:39,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:49:39,833 INFO L225 Difference]: With dead ends: 465 [2024-11-09 05:49:39,833 INFO L226 Difference]: Without dead ends: 464 [2024-11-09 05:49:39,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 179 SyntacticMatches, 18 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1641 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=380, Invalid=3160, Unknown=0, NotChecked=0, Total=3540 [2024-11-09 05:49:39,835 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 189 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:49:39,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 140 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:49:39,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-11-09 05:49:39,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 450. [2024-11-09 05:49:39,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 360 states have (on average 1.1055555555555556) internal successors, (398), 367 states have internal predecessors, (398), 79 states have call successors, (79), 3 states have call predecessors, (79), 3 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-09 05:49:39,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 556 transitions. [2024-11-09 05:49:39,950 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 556 transitions. Word has length 116 [2024-11-09 05:49:39,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:49:39,950 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 556 transitions. [2024-11-09 05:49:39,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-09 05:49:39,951 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 556 transitions. [2024-11-09 05:49:39,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-09 05:49:39,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:49:39,952 INFO L215 NwaCegarLoop]: trace histogram [14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:49:39,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-09 05:49:40,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-09 05:49:40,157 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:49:40,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:49:40,157 INFO L85 PathProgramCache]: Analyzing trace with hash -929930315, now seen corresponding path program 2 times [2024-11-09 05:49:40,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:49:40,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454023328] [2024-11-09 05:49:40,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:49:40,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:49:40,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:49:40,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1415007410] [2024-11-09 05:49:40,181 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:49:40,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:49:40,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:49:40,183 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:49:40,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 05:49:40,307 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 05:49:40,307 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:49:40,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:49:40,309 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:49:40,523 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-09 05:49:40,524 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:49:43,037 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-09 05:49:43,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:49:43,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454023328] [2024-11-09 05:49:43,037 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:49:43,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415007410] [2024-11-09 05:49:43,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415007410] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:49:43,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [249450156] [2024-11-09 05:49:43,039 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:49:43,040 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:49:43,040 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:49:43,040 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:49:43,040 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:49:53,636 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:49:53,638 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:49:53,639 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:49:58,372 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '27270#(exists ((|v_ULTIMATE.start_main_~y~0#1_86| Int) (|v_ULTIMATE.start_main_~q~0#1_94| Int)) (and (<= 1 |#StackHeapBarrier|) (<= |v_ULTIMATE.start_main_~y~0#1_86| 20) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_94| |v_ULTIMATE.start_main_~y~0#1_86|)) (<= |ULTIMATE.start_main_~x~0#1| 20) (<= 1 |v_ULTIMATE.start_main_~y~0#1_86|)))' at error location [2024-11-09 05:49:58,372 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:49:58,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:49:58,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2024-11-09 05:49:58,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178380583] [2024-11-09 05:49:58,373 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:49:58,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:49:58,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:49:58,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:49:58,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=1532, Unknown=1, NotChecked=0, Total=1806 [2024-11-09 05:49:58,375 INFO L87 Difference]: Start difference. First operand 450 states and 556 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-09 05:49:59,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:49:59,336 INFO L93 Difference]: Finished difference Result 465 states and 574 transitions. [2024-11-09 05:49:59,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:49:59,337 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 117 [2024-11-09 05:49:59,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:49:59,338 INFO L225 Difference]: With dead ends: 465 [2024-11-09 05:49:59,338 INFO L226 Difference]: Without dead ends: 464 [2024-11-09 05:49:59,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 289 SyntacticMatches, 19 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1389 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=285, Invalid=1694, Unknown=1, NotChecked=0, Total=1980 [2024-11-09 05:49:59,340 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 41 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:49:59,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 137 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 05:49:59,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-11-09 05:49:59,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 460. [2024-11-09 05:49:59,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 369 states have (on average 1.100271002710027) internal successors, (406), 376 states have internal predecessors, (406), 80 states have call successors, (80), 3 states have call predecessors, (80), 3 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-09 05:49:59,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 566 transitions. [2024-11-09 05:49:59,456 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 566 transitions. Word has length 117 [2024-11-09 05:49:59,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:49:59,457 INFO L471 AbstractCegarLoop]: Abstraction has 460 states and 566 transitions. [2024-11-09 05:49:59,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-09 05:49:59,457 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 566 transitions. [2024-11-09 05:49:59,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-09 05:49:59,459 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:49:59,459 INFO L215 NwaCegarLoop]: trace histogram [14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:49:59,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-09 05:49:59,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-09 05:49:59,660 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:49:59,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:49:59,661 INFO L85 PathProgramCache]: Analyzing trace with hash -309833353, now seen corresponding path program 2 times [2024-11-09 05:49:59,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:49:59,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987931552] [2024-11-09 05:49:59,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:49:59,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:49:59,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:49:59,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [750187783] [2024-11-09 05:49:59,704 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:49:59,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:49:59,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:49:59,706 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:49:59,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-09 05:49:59,771 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 05:49:59,772 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:49:59,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 05:49:59,776 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:50:00,242 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2024-11-09 05:50:00,242 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:50:01,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:50:01,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987931552] [2024-11-09 05:50:01,173 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:50:01,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750187783] [2024-11-09 05:50:01,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750187783] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:50:01,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [778849392] [2024-11-09 05:50:01,175 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:50:01,175 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:50:01,176 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:50:01,176 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:50:01,176 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:50:12,307 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:50:12,308 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:50:12,309 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:50:17,452 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '28887#(exists ((|v_ULTIMATE.start_main_~r~0#1_91| Int) (|v_ULTIMATE.start_main_~y~0#1_89| Int) (|v_ULTIMATE.start_main_~q~0#1_102| Int)) (and (<= |v_ULTIMATE.start_main_~y~0#1_89| 20) (<= 1 |#StackHeapBarrier|) (<= 1 |v_ULTIMATE.start_main_~y~0#1_89|) (<= (* |v_ULTIMATE.start_main_~q~0#1_102| |v_ULTIMATE.start_main_~y~0#1_89|) 9223372036854775807) (<= |ULTIMATE.start_main_~x~0#1| 20) (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~q~0#1_102| |v_ULTIMATE.start_main_~y~0#1_89|) |v_ULTIMATE.start_main_~r~0#1_91|))))' at error location [2024-11-09 05:50:17,452 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:50:17,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:50:17,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 05:50:17,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865595239] [2024-11-09 05:50:17,453 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:50:17,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:50:17,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:50:17,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:50:17,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=392, Invalid=2470, Unknown=0, NotChecked=0, Total=2862 [2024-11-09 05:50:17,455 INFO L87 Difference]: Start difference. First operand 460 states and 566 transitions. Second operand has 11 states, 8 states have (on average 5.75) internal successors, (46), 10 states have internal predecessors, (46), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-09 05:50:18,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:50:18,206 INFO L93 Difference]: Finished difference Result 580 states and 720 transitions. [2024-11-09 05:50:18,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:50:18,207 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 5.75) internal successors, (46), 10 states have internal predecessors, (46), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 119 [2024-11-09 05:50:18,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:50:18,210 INFO L225 Difference]: With dead ends: 580 [2024-11-09 05:50:18,210 INFO L226 Difference]: Without dead ends: 579 [2024-11-09 05:50:18,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 185 SyntacticMatches, 18 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2006 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=403, Invalid=2567, Unknown=0, NotChecked=0, Total=2970 [2024-11-09 05:50:18,212 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 78 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:50:18,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 208 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 05:50:18,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-09 05:50:18,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 462. [2024-11-09 05:50:18,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 371 states have (on average 1.0970350404312668) internal successors, (407), 378 states have internal predecessors, (407), 80 states have call successors, (80), 3 states have call predecessors, (80), 3 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-09 05:50:18,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 567 transitions. [2024-11-09 05:50:18,330 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 567 transitions. Word has length 119 [2024-11-09 05:50:18,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:50:18,334 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 567 transitions. [2024-11-09 05:50:18,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 5.75) internal successors, (46), 10 states have internal predecessors, (46), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-09 05:50:18,334 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 567 transitions. [2024-11-09 05:50:18,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-09 05:50:18,336 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:50:18,337 INFO L215 NwaCegarLoop]: trace histogram [15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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 05:50:18,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-09 05:50:18,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:50:18,538 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:50:18,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:50:18,538 INFO L85 PathProgramCache]: Analyzing trace with hash -148211402, now seen corresponding path program 3 times [2024-11-09 05:50:18,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:50:18,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354594970] [2024-11-09 05:50:18,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:50:18,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:50:18,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:50:18,672 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2024-11-09 05:50:18,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:50:18,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354594970] [2024-11-09 05:50:18,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354594970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:50:18,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:50:18,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:50:18,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890352661] [2024-11-09 05:50:18,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:50:18,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:50:18,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:50:18,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:50:18,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:50:18,675 INFO L87 Difference]: Start difference. First operand 462 states and 567 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-09 05:50:19,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:50:19,081 INFO L93 Difference]: Finished difference Result 701 states and 866 transitions. [2024-11-09 05:50:19,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:50:19,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 124 [2024-11-09 05:50:19,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:50:19,083 INFO L225 Difference]: With dead ends: 701 [2024-11-09 05:50:19,083 INFO L226 Difference]: Without dead ends: 430 [2024-11-09 05:50:19,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:50:19,084 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 22 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:50:19,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 122 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:50:19,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-11-09 05:50:19,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 413. [2024-11-09 05:50:19,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 331 states have (on average 1.1027190332326284) internal successors, (365), 338 states have internal predecessors, (365), 71 states have call successors, (71), 3 states have call predecessors, (71), 3 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-09 05:50:19,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 507 transitions. [2024-11-09 05:50:19,174 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 507 transitions. Word has length 124 [2024-11-09 05:50:19,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:50:19,175 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 507 transitions. [2024-11-09 05:50:19,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-09 05:50:19,175 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 507 transitions. [2024-11-09 05:50:19,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-09 05:50:19,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:50:19,177 INFO L215 NwaCegarLoop]: trace histogram [15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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 05:50:19,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-09 05:50:19,177 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:50:19,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:50:19,177 INFO L85 PathProgramCache]: Analyzing trace with hash 122198638, now seen corresponding path program 4 times [2024-11-09 05:50:19,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:50:19,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397395760] [2024-11-09 05:50:19,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:50:19,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:50:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:50:19,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1911200604] [2024-11-09 05:50:19,199 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 05:50:19,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:50:19,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:50:19,201 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:50:19,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-09 05:50:19,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:50:19,278 INFO L255 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 05:50:19,280 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:50:19,939 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2024-11-09 05:50:19,939 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:50:20,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:50:20,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397395760] [2024-11-09 05:50:20,435 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:50:20,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911200604] [2024-11-09 05:50:20,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911200604] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:50:20,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1682474102] [2024-11-09 05:50:20,436 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:50:20,437 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:50:20,437 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:50:20,437 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:50:20,437 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:50:30,773 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:50:30,774 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:50:30,775 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:50:35,512 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '32037#(exists ((|v_ULTIMATE.start_main_~y~0#1_90| Int) (|v_ULTIMATE.start_main_~q~0#1_111| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_111| |v_ULTIMATE.start_main_~y~0#1_90|)) (<= 1 |#StackHeapBarrier|) (<= |v_ULTIMATE.start_main_~y~0#1_90| 20) (<= |ULTIMATE.start_main_~x~0#1| 20) (<= 1 |v_ULTIMATE.start_main_~y~0#1_90|)))' at error location [2024-11-09 05:50:35,512 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:50:35,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:50:35,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-09 05:50:35,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691715066] [2024-11-09 05:50:35,512 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:50:35,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:50:35,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:50:35,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:50:35,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=2347, Unknown=0, NotChecked=0, Total=2652 [2024-11-09 05:50:35,515 INFO L87 Difference]: Start difference. First operand 413 states and 507 transitions. Second operand has 13 states, 11 states have (on average 6.636363636363637) internal successors, (73), 13 states have internal predecessors, (73), 8 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 7 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-09 05:50:36,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:50:36,546 INFO L93 Difference]: Finished difference Result 497 states and 613 transitions. [2024-11-09 05:50:36,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 05:50:36,547 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.636363636363637) internal successors, (73), 13 states have internal predecessors, (73), 8 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 7 states have call predecessors, (18), 8 states have call successors, (18) Word has length 124 [2024-11-09 05:50:36,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:50:36,549 INFO L225 Difference]: With dead ends: 497 [2024-11-09 05:50:36,549 INFO L226 Difference]: Without dead ends: 496 [2024-11-09 05:50:36,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 193 SyntacticMatches, 20 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2431 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=384, Invalid=3522, Unknown=0, NotChecked=0, Total=3906 [2024-11-09 05:50:36,550 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 250 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:50:36,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 327 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 847 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:50:36,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-11-09 05:50:36,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 423. [2024-11-09 05:50:36,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 340 states have (on average 1.1) internal successors, (374), 347 states have internal predecessors, (374), 72 states have call successors, (72), 3 states have call predecessors, (72), 3 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-09 05:50:36,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 518 transitions. [2024-11-09 05:50:36,648 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 518 transitions. Word has length 124 [2024-11-09 05:50:36,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:50:36,649 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 518 transitions. [2024-11-09 05:50:36,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.636363636363637) internal successors, (73), 13 states have internal predecessors, (73), 8 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 7 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-09 05:50:36,649 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 518 transitions. [2024-11-09 05:50:36,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-09 05:50:36,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:50:36,650 INFO L215 NwaCegarLoop]: trace histogram [15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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 05:50:36,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-09 05:50:36,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-09 05:50:36,855 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:50:36,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:50:36,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1468775920, now seen corresponding path program 3 times [2024-11-09 05:50:36,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:50:36,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642417541] [2024-11-09 05:50:36,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:50:36,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:50:36,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:50:36,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1247367850] [2024-11-09 05:50:36,877 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:50:36,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:50:36,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:50:36,879 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:50:36,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-09 05:50:36,960 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:50:36,960 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:50:36,962 INFO L255 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 05:50:36,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:50:37,835 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2024-11-09 05:50:37,836 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:50:44,294 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:50:44,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642417541] [2024-11-09 05:50:44,294 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:50:44,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247367850] [2024-11-09 05:50:44,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247367850] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:50:44,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [818412302] [2024-11-09 05:50:44,296 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:50:44,296 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:50:44,296 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:50:44,296 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:50:44,297 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:50:54,611 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:50:54,612 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:50:54,613 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:50:59,896 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '33933#(exists ((|v_ULTIMATE.start_main_~y~0#1_91| Int) (|v_ULTIMATE.start_main_~q~0#1_121| Int) (|v_ULTIMATE.start_main_~r~0#1_108| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 1 |v_ULTIMATE.start_main_~y~0#1_91|) (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~q~0#1_121| |v_ULTIMATE.start_main_~y~0#1_91|) |v_ULTIMATE.start_main_~r~0#1_108|)) (<= (* |v_ULTIMATE.start_main_~q~0#1_121| |v_ULTIMATE.start_main_~y~0#1_91|) 9223372036854775807) (<= |v_ULTIMATE.start_main_~y~0#1_91| 20) (<= |ULTIMATE.start_main_~x~0#1| 20)))' at error location [2024-11-09 05:50:59,896 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:50:59,896 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:50:59,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-09 05:50:59,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360234265] [2024-11-09 05:50:59,897 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:50:59,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:50:59,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:50:59,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:50:59,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=326, Invalid=2751, Unknown=3, NotChecked=0, Total=3080 [2024-11-09 05:50:59,898 INFO L87 Difference]: Start difference. First operand 423 states and 518 transitions. Second operand has 13 states, 11 states have (on average 6.818181818181818) internal successors, (75), 13 states have internal predecessors, (75), 8 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 7 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-09 05:51:01,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:51:01,039 INFO L93 Difference]: Finished difference Result 495 states and 609 transitions. [2024-11-09 05:51:01,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 05:51:01,039 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.818181818181818) internal successors, (75), 13 states have internal predecessors, (75), 8 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 7 states have call predecessors, (18), 8 states have call successors, (18) Word has length 126 [2024-11-09 05:51:01,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:51:01,042 INFO L225 Difference]: With dead ends: 495 [2024-11-09 05:51:01,042 INFO L226 Difference]: Without dead ends: 482 [2024-11-09 05:51:01,043 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 278 SyntacticMatches, 21 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2357 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=390, Invalid=3767, Unknown=3, NotChecked=0, Total=4160 [2024-11-09 05:51:01,044 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 195 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:51:01,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 329 Invalid, 945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:51:01,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-09 05:51:01,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 413. [2024-11-09 05:51:01,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 331 states have (on average 1.0996978851963746) internal successors, (364), 338 states have internal predecessors, (364), 71 states have call successors, (71), 3 states have call predecessors, (71), 3 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-09 05:51:01,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 506 transitions. [2024-11-09 05:51:01,104 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 506 transitions. Word has length 126 [2024-11-09 05:51:01,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:51:01,105 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 506 transitions. [2024-11-09 05:51:01,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.818181818181818) internal successors, (75), 13 states have internal predecessors, (75), 8 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 7 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-09 05:51:01,105 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 506 transitions. [2024-11-09 05:51:01,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-09 05:51:01,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:51:01,107 INFO L215 NwaCegarLoop]: trace histogram [19, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:51:01,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-09 05:51:01,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-09 05:51:01,318 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:51:01,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:51:01,319 INFO L85 PathProgramCache]: Analyzing trace with hash 921509554, now seen corresponding path program 5 times [2024-11-09 05:51:01,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:51:01,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875593538] [2024-11-09 05:51:01,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:51:01,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:51:01,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:51:01,480 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 74 proven. 39 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2024-11-09 05:51:01,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:51:01,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875593538] [2024-11-09 05:51:01,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875593538] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:51:01,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982905135] [2024-11-09 05:51:01,481 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:51:01,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:51:01,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:51:01,483 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:51:01,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-09 05:51:01,626 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-09 05:51:01,627 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:51:01,628 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 05:51:01,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:51:03,106 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 41 proven. 99 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2024-11-09 05:51:03,106 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:51:04,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982905135] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:51:04,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [669764887] [2024-11-09 05:51:04,621 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:51:04,621 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:51:04,621 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:51:04,621 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:51:04,621 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:51:14,743 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:51:14,744 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:51:14,745 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:51:22,206 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '35641#(exists ((|v_ULTIMATE.start_main_~q~0#1_130| Int) (|v_ULTIMATE.start_main_~y~0#1_94| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 1 |v_ULTIMATE.start_main_~y~0#1_94|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_130| |v_ULTIMATE.start_main_~y~0#1_94|)) (<= |v_ULTIMATE.start_main_~y~0#1_94| 20) (<= |ULTIMATE.start_main_~x~0#1| 20)))' at error location [2024-11-09 05:51:22,207 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:51:22,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:51:22,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12] total 18 [2024-11-09 05:51:22,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814473889] [2024-11-09 05:51:22,207 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:51:22,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 05:51:22,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:51:22,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 05:51:22,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=353, Invalid=3069, Unknown=0, NotChecked=0, Total=3422 [2024-11-09 05:51:22,209 INFO L87 Difference]: Start difference. First operand 413 states and 506 transitions. Second operand has 18 states, 16 states have (on average 10.1875) internal successors, (163), 18 states have internal predecessors, (163), 11 states have call successors, (37), 1 states have call predecessors, (37), 3 states have return successors, (39), 11 states have call predecessors, (39), 11 states have call successors, (39) [2024-11-09 05:51:24,450 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 05:51:31,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:51:31,480 INFO L93 Difference]: Finished difference Result 595 states and 733 transitions. [2024-11-09 05:51:31,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-09 05:51:31,480 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 10.1875) internal successors, (163), 18 states have internal predecessors, (163), 11 states have call successors, (37), 1 states have call predecessors, (37), 3 states have return successors, (39), 11 states have call predecessors, (39), 11 states have call successors, (39) Word has length 154 [2024-11-09 05:51:31,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:51:31,482 INFO L225 Difference]: With dead ends: 595 [2024-11-09 05:51:31,482 INFO L226 Difference]: Without dead ends: 350 [2024-11-09 05:51:31,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 254 SyntacticMatches, 25 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4712 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=1072, Invalid=9434, Unknown=0, NotChecked=0, Total=10506 [2024-11-09 05:51:31,484 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 537 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 141 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:51:31,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 387 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 1216 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2024-11-09 05:51:31,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-09 05:51:31,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 330. [2024-11-09 05:51:31,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 263 states have (on average 1.102661596958175) internal successors, (290), 269 states have internal predecessors, (290), 57 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-09 05:51:31,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 404 transitions. [2024-11-09 05:51:31,571 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 404 transitions. Word has length 154 [2024-11-09 05:51:31,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:51:31,572 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 404 transitions. [2024-11-09 05:51:31,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 10.1875) internal successors, (163), 18 states have internal predecessors, (163), 11 states have call successors, (37), 1 states have call predecessors, (37), 3 states have return successors, (39), 11 states have call predecessors, (39), 11 states have call successors, (39) [2024-11-09 05:51:31,572 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 404 transitions. [2024-11-09 05:51:31,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-09 05:51:31,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:51:31,574 INFO L215 NwaCegarLoop]: trace histogram [19, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:51:31,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-09 05:51:31,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:51:31,777 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:51:31,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:51:31,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1321536404, now seen corresponding path program 4 times [2024-11-09 05:51:31,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:51:31,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116273654] [2024-11-09 05:51:31,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:51:31,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:51:31,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:51:31,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1287973643] [2024-11-09 05:51:31,802 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 05:51:31,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:51:31,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:51:31,804 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:51:31,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-09 05:51:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:51:31,888 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-09 05:51:31,891 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:51:33,081 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2024-11-09 05:51:33,081 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:51:37,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:51:37,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116273654] [2024-11-09 05:51:37,684 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:51:37,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287973643] [2024-11-09 05:51:37,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287973643] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:51:37,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [185623953] [2024-11-09 05:51:37,686 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:51:37,686 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:51:37,686 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:51:37,686 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:51:37,686 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:51:47,886 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:51:47,887 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:51:47,888 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:51:53,954 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '37803#(exists ((|v_ULTIMATE.start_main_~q~0#1_140| Int) (|v_ULTIMATE.start_main_~r~0#1_127| Int) (|v_ULTIMATE.start_main_~y~0#1_95| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~q~0#1_140| |v_ULTIMATE.start_main_~y~0#1_95|) |v_ULTIMATE.start_main_~r~0#1_127|)) (<= |v_ULTIMATE.start_main_~y~0#1_95| 20) (<= (* |v_ULTIMATE.start_main_~q~0#1_140| |v_ULTIMATE.start_main_~y~0#1_95|) 9223372036854775807) (<= |ULTIMATE.start_main_~x~0#1| 20) (<= 1 |v_ULTIMATE.start_main_~y~0#1_95|)))' at error location [2024-11-09 05:51:53,954 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:51:53,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:51:53,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-09 05:51:53,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624190827] [2024-11-09 05:51:53,954 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:51:53,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 05:51:53,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:51:53,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 05:51:53,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=3187, Unknown=2, NotChecked=0, Total=3540 [2024-11-09 05:51:53,956 INFO L87 Difference]: Start difference. First operand 330 states and 404 transitions. Second operand has 15 states, 13 states have (on average 7.153846153846154) internal successors, (93), 15 states have internal predecessors, (93), 9 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 8 states have call predecessors, (22), 9 states have call successors, (22) [2024-11-09 05:51:55,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:51:55,138 INFO L93 Difference]: Finished difference Result 415 states and 512 transitions. [2024-11-09 05:51:55,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 05:51:55,140 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 7.153846153846154) internal successors, (93), 15 states have internal predecessors, (93), 9 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 8 states have call predecessors, (22), 9 states have call successors, (22) Word has length 156 [2024-11-09 05:51:55,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:51:55,142 INFO L225 Difference]: With dead ends: 415 [2024-11-09 05:51:55,142 INFO L226 Difference]: Without dead ends: 402 [2024-11-09 05:51:55,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 359 SyntacticMatches, 26 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3063 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=440, Invalid=4528, Unknown=2, NotChecked=0, Total=4970 [2024-11-09 05:51:55,144 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 222 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:51:55,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 359 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:51:55,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2024-11-09 05:51:55,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 326. [2024-11-09 05:51:55,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 259 states have (on average 1.1003861003861004) internal successors, (285), 265 states have internal predecessors, (285), 57 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-09 05:51:55,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 399 transitions. [2024-11-09 05:51:55,200 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 399 transitions. Word has length 156 [2024-11-09 05:51:55,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:51:55,200 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 399 transitions. [2024-11-09 05:51:55,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 7.153846153846154) internal successors, (93), 15 states have internal predecessors, (93), 9 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 8 states have call predecessors, (22), 9 states have call successors, (22) [2024-11-09 05:51:55,201 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 399 transitions. [2024-11-09 05:51:55,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-09 05:51:55,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:51:55,202 INFO L215 NwaCegarLoop]: trace histogram [19, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 05:51:55,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-09 05:51:55,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-09 05:51:55,404 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:51:55,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:51:55,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1584626837, now seen corresponding path program 1 times [2024-11-09 05:51:55,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:51:55,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755173995] [2024-11-09 05:51:55,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:51:55,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:51:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:51:55,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1332441463] [2024-11-09 05:51:55,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:51:55,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:51:55,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:51:55,437 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:51:55,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-09 05:51:55,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:51:55,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 05:51:55,529 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:51:56,220 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2024-11-09 05:51:56,220 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:51:56,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:51:56,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755173995] [2024-11-09 05:51:56,594 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:51:56,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332441463] [2024-11-09 05:51:56,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332441463] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:51:56,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2064307213] [2024-11-09 05:51:56,596 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:51:56,596 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:51:56,596 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:51:56,596 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:51:56,596 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:52:06,587 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:52:06,587 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:52:06,588 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:52:10,859 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '39287#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~r~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 20) (exists ((|v_ULTIMATE.start_main_~a~0#1_343| Int) (|v_ULTIMATE.start_main_~y~0#1_96| Int)) (and (<= 1 |v_ULTIMATE.start_main_~y~0#1_96|) (<= |v_ULTIMATE.start_main_~y~0#1_96| 20) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_343| |v_ULTIMATE.start_main_~y~0#1_96|)))))' at error location [2024-11-09 05:52:10,859 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:52:10,859 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:52:10,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-09 05:52:10,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066853573] [2024-11-09 05:52:10,859 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:52:10,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:52:10,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:52:10,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:52:10,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=288, Invalid=2262, Unknown=0, NotChecked=0, Total=2550 [2024-11-09 05:52:10,861 INFO L87 Difference]: Start difference. First operand 326 states and 399 transitions. Second operand has 13 states, 11 states have (on average 8.454545454545455) internal successors, (93), 13 states have internal predecessors, (93), 9 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 8 states have call predecessors, (22), 9 states have call successors, (22) [2024-11-09 05:52:12,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:12,125 INFO L93 Difference]: Finished difference Result 533 states and 656 transitions. [2024-11-09 05:52:12,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 05:52:12,125 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 8.454545454545455) internal successors, (93), 13 states have internal predecessors, (93), 9 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 8 states have call predecessors, (22), 9 states have call successors, (22) Word has length 156 [2024-11-09 05:52:12,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:12,127 INFO L225 Difference]: With dead ends: 533 [2024-11-09 05:52:12,127 INFO L226 Difference]: Without dead ends: 371 [2024-11-09 05:52:12,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 246 SyntacticMatches, 24 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2409 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=397, Invalid=3509, Unknown=0, NotChecked=0, Total=3906 [2024-11-09 05:52:12,128 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 249 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:12,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 548 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:52:12,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-11-09 05:52:12,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 329. [2024-11-09 05:52:12,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 262 states have (on average 1.0916030534351144) internal successors, (286), 268 states have internal predecessors, (286), 57 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-09 05:52:12,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 400 transitions. [2024-11-09 05:52:12,195 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 400 transitions. Word has length 156 [2024-11-09 05:52:12,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:12,195 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 400 transitions. [2024-11-09 05:52:12,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 8.454545454545455) internal successors, (93), 13 states have internal predecessors, (93), 9 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 8 states have call predecessors, (22), 9 states have call successors, (22) [2024-11-09 05:52:12,195 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 400 transitions. [2024-11-09 05:52:12,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-09 05:52:12,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:12,197 INFO L215 NwaCegarLoop]: trace histogram [22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:52:12,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-09 05:52:12,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-09 05:52:12,401 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:52:12,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:12,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1209178019, now seen corresponding path program 1 times [2024-11-09 05:52:12,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:12,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887523640] [2024-11-09 05:52:12,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:12,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:12,658 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2024-11-09 05:52:12,658 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:12,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887523640] [2024-11-09 05:52:12,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887523640] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:52:12,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441493479] [2024-11-09 05:52:12,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:12,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:12,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:52:12,661 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:52:12,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-09 05:52:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:12,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:52:12,756 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:52:13,174 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2024-11-09 05:52:13,175 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:52:13,571 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2024-11-09 05:52:13,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441493479] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:52:13,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [244919437] [2024-11-09 05:52:13,573 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:52:13,573 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:52:13,573 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:52:13,574 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:52:13,574 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:52:23,409 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:52:23,410 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:52:23,411 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:52:27,245 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '41492#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 1 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 20) (<= |ULTIMATE.start_main_~x~0#1| 20))' at error location [2024-11-09 05:52:27,245 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:52:27,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:52:27,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-11-09 05:52:27,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041157229] [2024-11-09 05:52:27,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:52:27,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 05:52:27,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:52:27,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 05:52:27,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=386, Invalid=2806, Unknown=0, NotChecked=0, Total=3192 [2024-11-09 05:52:27,247 INFO L87 Difference]: Start difference. First operand 329 states and 400 transitions. Second operand has 22 states, 21 states have (on average 14.0) internal successors, (294), 22 states have internal predecessors, (294), 21 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 21 states have call predecessors, (67), 21 states have call successors, (67) [2024-11-09 05:52:28,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:28,802 INFO L93 Difference]: Finished difference Result 989 states and 1235 transitions. [2024-11-09 05:52:28,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 05:52:28,803 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 14.0) internal successors, (294), 22 states have internal predecessors, (294), 21 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 21 states have call predecessors, (67), 21 states have call successors, (67) Word has length 176 [2024-11-09 05:52:28,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:28,806 INFO L225 Difference]: With dead ends: 989 [2024-11-09 05:52:28,807 INFO L226 Difference]: Without dead ends: 988 [2024-11-09 05:52:28,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 450 SyntacticMatches, 29 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4198 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=780, Invalid=4622, Unknown=0, NotChecked=0, Total=5402 [2024-11-09 05:52:28,809 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 1049 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:28,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1063 Valid, 402 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:52:28,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2024-11-09 05:52:29,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 694. [2024-11-09 05:52:29,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 562 states have (on average 1.1085409252669038) internal successors, (623), 568 states have internal predecessors, (623), 122 states have call successors, (122), 3 states have call predecessors, (122), 3 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) [2024-11-09 05:52:29,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 867 transitions. [2024-11-09 05:52:29,041 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 867 transitions. Word has length 176 [2024-11-09 05:52:29,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:29,042 INFO L471 AbstractCegarLoop]: Abstraction has 694 states and 867 transitions. [2024-11-09 05:52:29,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 14.0) internal successors, (294), 22 states have internal predecessors, (294), 21 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 21 states have call predecessors, (67), 21 states have call successors, (67) [2024-11-09 05:52:29,043 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 867 transitions. [2024-11-09 05:52:29,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-09 05:52:29,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:29,044 INFO L215 NwaCegarLoop]: trace histogram [23, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:52:29,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-09 05:52:29,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-09 05:52:29,249 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:52:29,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:29,249 INFO L85 PathProgramCache]: Analyzing trace with hash -393349456, now seen corresponding path program 5 times [2024-11-09 05:52:29,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:29,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233451139] [2024-11-09 05:52:29,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:29,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:52:29,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1124225845] [2024-11-09 05:52:29,287 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:52:29,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:29,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:52:29,289 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:52:29,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-09 05:52:29,362 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-09 05:52:29,362 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:52:29,364 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 05:52:29,370 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:52:29,795 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 34 proven. 132 refuted. 0 times theorem prover too weak. 533 trivial. 0 not checked. [2024-11-09 05:52:29,795 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:52:30,222 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:30,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233451139] [2024-11-09 05:52:30,222 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:52:30,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124225845] [2024-11-09 05:52:30,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124225845] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:52:30,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2054283057] [2024-11-09 05:52:30,224 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:52:30,224 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:52:30,224 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:52:30,224 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:52:30,224 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:52:39,372 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:52:39,373 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:52:39,374 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:52:45,090 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '44419#(exists ((|v_ULTIMATE.start_main_~q~0#1_163| Int) (|v_ULTIMATE.start_main_~r~0#1_150| Int) (|v_ULTIMATE.start_main_~y~0#1_101| Int)) (and (<= 1 |#StackHeapBarrier|) (<= (* |v_ULTIMATE.start_main_~y~0#1_101| |v_ULTIMATE.start_main_~q~0#1_163|) 9223372036854775807) (<= 1 |v_ULTIMATE.start_main_~y~0#1_101|) (<= |v_ULTIMATE.start_main_~y~0#1_101| 20) (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~y~0#1_101| |v_ULTIMATE.start_main_~q~0#1_163|) |v_ULTIMATE.start_main_~r~0#1_150|)) (<= |ULTIMATE.start_main_~x~0#1| 20)))' at error location [2024-11-09 05:52:45,090 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:52:45,090 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:52:45,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 05:52:45,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784583931] [2024-11-09 05:52:45,090 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:52:45,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:52:45,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:52:45,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:52:45,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=2244, Unknown=0, NotChecked=0, Total=2550 [2024-11-09 05:52:45,092 INFO L87 Difference]: Start difference. First operand 694 states and 867 transitions. Second operand has 11 states, 8 states have (on average 9.125) internal successors, (73), 11 states have internal predecessors, (73), 6 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-09 05:52:46,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:46,029 INFO L93 Difference]: Finished difference Result 698 states and 873 transitions. [2024-11-09 05:52:46,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 05:52:46,030 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 9.125) internal successors, (73), 11 states have internal predecessors, (73), 6 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 6 states have call successors, (16) Word has length 186 [2024-11-09 05:52:46,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:46,033 INFO L225 Difference]: With dead ends: 698 [2024-11-09 05:52:46,033 INFO L226 Difference]: Without dead ends: 609 [2024-11-09 05:52:46,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 363 SyntacticMatches, 31 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2823 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=403, Invalid=3257, Unknown=0, NotChecked=0, Total=3660 [2024-11-09 05:52:46,035 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 138 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:46,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 100 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:52:46,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2024-11-09 05:52:46,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 595. [2024-11-09 05:52:46,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 481 states have (on average 1.1039501039501038) internal successors, (531), 486 states have internal predecessors, (531), 105 states have call successors, (105), 3 states have call predecessors, (105), 3 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-09 05:52:46,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 741 transitions. [2024-11-09 05:52:46,194 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 741 transitions. Word has length 186 [2024-11-09 05:52:46,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:46,194 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 741 transitions. [2024-11-09 05:52:46,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 9.125) internal successors, (73), 11 states have internal predecessors, (73), 6 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-09 05:52:46,194 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 741 transitions. [2024-11-09 05:52:46,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-09 05:52:46,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:46,196 INFO L215 NwaCegarLoop]: trace histogram [23, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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 05:52:46,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-09 05:52:46,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-09 05:52:46,400 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:52:46,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:46,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1509570791, now seen corresponding path program 2 times [2024-11-09 05:52:46,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:46,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378875048] [2024-11-09 05:52:46,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:46,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:52:46,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1002551078] [2024-11-09 05:52:46,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:52:46,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:46,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:52:46,453 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:52:46,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-09 05:52:46,519 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 05:52:46,519 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:52:46,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 05:52:46,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:52:47,106 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 100 proven. 28 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked. [2024-11-09 05:52:47,106 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:52:48,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:48,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378875048] [2024-11-09 05:52:48,152 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:52:48,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002551078] [2024-11-09 05:52:48,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002551078] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:52:48,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [859257281] [2024-11-09 05:52:48,154 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:52:48,154 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:52:48,154 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:52:48,154 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:52:48,155 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:52:58,981 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:52:58,982 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:52:58,983 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:53:03,964 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '46675#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~r~0#1|) (exists ((|v_ULTIMATE.start_main_~a~0#1_425| Int) (|v_ULTIMATE.start_main_~y~0#1_104| Int)) (and (<= 1 |v_ULTIMATE.start_main_~y~0#1_104|) (<= |v_ULTIMATE.start_main_~y~0#1_104| 20) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_104| |v_ULTIMATE.start_main_~a~0#1_425|)))) (<= |ULTIMATE.start_main_~x~0#1| 20))' at error location [2024-11-09 05:53:03,965 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:53:03,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:53:03,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-09 05:53:03,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812210911] [2024-11-09 05:53:03,965 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:53:03,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 05:53:03,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:53:03,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 05:53:03,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=2344, Unknown=1, NotChecked=0, Total=2652 [2024-11-09 05:53:03,967 INFO L87 Difference]: Start difference. First operand 595 states and 741 transitions. Second operand has 12 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 5 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-09 05:53:04,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:53:04,897 INFO L93 Difference]: Finished difference Result 609 states and 759 transitions. [2024-11-09 05:53:04,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 05:53:04,897 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 5 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 186 [2024-11-09 05:53:04,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:53:04,899 INFO L225 Difference]: With dead ends: 609 [2024-11-09 05:53:04,899 INFO L226 Difference]: Without dead ends: 598 [2024-11-09 05:53:04,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 300 SyntacticMatches, 29 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2758 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=400, Invalid=3139, Unknown=1, NotChecked=0, Total=3540 [2024-11-09 05:53:04,900 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 141 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:53:04,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 240 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 05:53:04,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2024-11-09 05:53:05,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 570. [2024-11-09 05:53:05,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 460 states have (on average 1.0369565217391303) internal successors, (477), 461 states have internal predecessors, (477), 105 states have call successors, (105), 3 states have call predecessors, (105), 3 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-09 05:53:05,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 687 transitions. [2024-11-09 05:53:05,005 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 687 transitions. Word has length 186 [2024-11-09 05:53:05,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:53:05,005 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 687 transitions. [2024-11-09 05:53:05,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 5 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-09 05:53:05,006 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 687 transitions. [2024-11-09 05:53:05,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2024-11-09 05:53:05,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:53:05,008 INFO L215 NwaCegarLoop]: trace histogram [38, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 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 05:53:05,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-09 05:53:05,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-09 05:53:05,209 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:53:05,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:53:05,210 INFO L85 PathProgramCache]: Analyzing trace with hash -852696689, now seen corresponding path program 1 times [2024-11-09 05:53:05,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:53:05,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605543268] [2024-11-09 05:53:05,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:53:05,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:53:05,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:53:05,503 INFO L134 CoverageAnalysis]: Checked inductivity of 2071 backedges. 299 proven. 150 refuted. 0 times theorem prover too weak. 1622 trivial. 0 not checked. [2024-11-09 05:53:05,503 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:53:05,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605543268] [2024-11-09 05:53:05,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605543268] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:53:05,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352700890] [2024-11-09 05:53:05,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:53:05,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:53:05,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:53:05,506 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:53:05,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-09 05:53:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:53:05,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 05:53:05,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:53:06,023 INFO L134 CoverageAnalysis]: Checked inductivity of 2071 backedges. 755 proven. 363 refuted. 0 times theorem prover too weak. 953 trivial. 0 not checked. [2024-11-09 05:53:06,024 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:53:06,492 INFO L134 CoverageAnalysis]: Checked inductivity of 2071 backedges. 275 proven. 363 refuted. 0 times theorem prover too weak. 1433 trivial. 0 not checked. [2024-11-09 05:53:06,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352700890] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:53:06,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1271718254] [2024-11-09 05:53:06,493 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:53:06,493 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:53:06,494 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:53:06,494 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:53:06,494 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:53:16,917 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:53:16,917 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:53:16,918 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:53:22,234 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '49956#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 1 |ULTIMATE.start_main_~r~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 20) (<= |ULTIMATE.start_main_~x~0#1| 20))' at error location [2024-11-09 05:53:22,235 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:53:22,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:53:22,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 11, 11] total 20 [2024-11-09 05:53:22,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889727382] [2024-11-09 05:53:22,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:53:22,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-09 05:53:22,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:53:22,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 05:53:22,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=311, Invalid=2769, Unknown=0, NotChecked=0, Total=3080 [2024-11-09 05:53:22,238 INFO L87 Difference]: Start difference. First operand 570 states and 687 transitions. Second operand has 20 states, 20 states have (on average 13.25) internal successors, (265), 20 states have internal predecessors, (265), 17 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (67), 17 states have call predecessors, (67), 17 states have call successors, (67) [2024-11-09 05:53:25,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:53:25,383 INFO L93 Difference]: Finished difference Result 1146 states and 1373 transitions. [2024-11-09 05:53:25,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-09 05:53:25,384 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.25) internal successors, (265), 20 states have internal predecessors, (265), 17 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (67), 17 states have call predecessors, (67), 17 states have call successors, (67) Word has length 291 [2024-11-09 05:53:25,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:53:25,386 INFO L225 Difference]: With dead ends: 1146 [2024-11-09 05:53:25,386 INFO L226 Difference]: Without dead ends: 834 [2024-11-09 05:53:25,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 933 GetRequests, 778 SyntacticMatches, 54 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5951 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=1191, Invalid=9315, Unknown=0, NotChecked=0, Total=10506 [2024-11-09 05:53:25,389 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 537 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 2653 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 1395 SdHoareTripleChecker+Invalid, 2793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 2653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:53:25,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 1395 Invalid, 2793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 2653 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 05:53:25,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-11-09 05:53:25,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 696. [2024-11-09 05:53:25,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 564 states have (on average 1.0301418439716312) internal successors, (581), 564 states have internal predecessors, (581), 128 states have call successors, (128), 3 states have call predecessors, (128), 3 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-09 05:53:25,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 837 transitions. [2024-11-09 05:53:25,546 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 837 transitions. Word has length 291 [2024-11-09 05:53:25,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:53:25,546 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 837 transitions. [2024-11-09 05:53:25,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.25) internal successors, (265), 20 states have internal predecessors, (265), 17 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (67), 17 states have call predecessors, (67), 17 states have call successors, (67) [2024-11-09 05:53:25,547 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 837 transitions. [2024-11-09 05:53:25,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-11-09 05:53:25,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:53:25,550 INFO L215 NwaCegarLoop]: trace histogram [42, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:53:25,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-09 05:53:25,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-09 05:53:25,751 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:53:25,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:53:25,751 INFO L85 PathProgramCache]: Analyzing trace with hash -2115341777, now seen corresponding path program 2 times [2024-11-09 05:53:25,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:53:25,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934529195] [2024-11-09 05:53:25,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:53:25,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:53:25,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:53:26,348 INFO L134 CoverageAnalysis]: Checked inductivity of 2579 backedges. 0 proven. 851 refuted. 0 times theorem prover too weak. 1728 trivial. 0 not checked. [2024-11-09 05:53:26,348 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:53:26,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934529195] [2024-11-09 05:53:26,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934529195] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:53:26,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741135241] [2024-11-09 05:53:26,349 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:53:26,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:53:26,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:53:26,351 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:53:26,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-09 05:53:26,439 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 05:53:26,439 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:53:26,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 05:53:26,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:53:27,481 INFO L134 CoverageAnalysis]: Checked inductivity of 2579 backedges. 105 proven. 537 refuted. 0 times theorem prover too weak. 1937 trivial. 0 not checked. [2024-11-09 05:53:27,481 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:53:27,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741135241] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:53:27,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1024313005] [2024-11-09 05:53:27,769 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:53:27,769 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:53:27,770 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:53:27,770 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:53:27,770 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:53:38,061 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:53:38,062 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:53:38,063 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:53:44,517 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '53440#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 1 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 20) (<= |ULTIMATE.start_main_~x~0#1| 20))' at error location [2024-11-09 05:53:44,517 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:53:44,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:53:44,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 22 [2024-11-09 05:53:44,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599070842] [2024-11-09 05:53:44,518 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:53:44,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 05:53:44,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:53:44,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 05:53:44,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=403, Invalid=3379, Unknown=0, NotChecked=0, Total=3782 [2024-11-09 05:53:44,520 INFO L87 Difference]: Start difference. First operand 696 states and 837 transitions. Second operand has 23 states, 20 states have (on average 13.25) internal successors, (265), 22 states have internal predecessors, (265), 17 states have call successors, (59), 1 states have call predecessors, (59), 3 states have return successors, (61), 18 states have call predecessors, (61), 17 states have call successors, (61) [2024-11-09 05:53:50,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:53:50,411 INFO L93 Difference]: Finished difference Result 1081 states and 1299 transitions. [2024-11-09 05:53:50,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-11-09 05:53:50,412 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 13.25) internal successors, (265), 22 states have internal predecessors, (265), 17 states have call successors, (59), 1 states have call predecessors, (59), 3 states have return successors, (61), 18 states have call predecessors, (61), 17 states have call successors, (61) Word has length 326 [2024-11-09 05:53:50,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:53:50,415 INFO L225 Difference]: With dead ends: 1081 [2024-11-09 05:53:50,415 INFO L226 Difference]: Without dead ends: 1076 [2024-11-09 05:53:50,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 747 GetRequests, 568 SyntacticMatches, 54 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10290 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=2496, Invalid=13506, Unknown=0, NotChecked=0, Total=16002 [2024-11-09 05:53:50,419 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 846 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:53:50,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 195 Invalid, 933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 05:53:50,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2024-11-09 05:53:50,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 938. [2024-11-09 05:53:50,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 764 states have (on average 1.031413612565445) internal successors, (788), 764 states have internal predecessors, (788), 170 states have call successors, (170), 3 states have call predecessors, (170), 3 states have return successors, (170), 170 states have call predecessors, (170), 170 states have call successors, (170) [2024-11-09 05:53:50,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1128 transitions. [2024-11-09 05:53:50,669 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1128 transitions. Word has length 326 [2024-11-09 05:53:50,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:53:50,669 INFO L471 AbstractCegarLoop]: Abstraction has 938 states and 1128 transitions. [2024-11-09 05:53:50,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 13.25) internal successors, (265), 22 states have internal predecessors, (265), 17 states have call successors, (59), 1 states have call predecessors, (59), 3 states have return successors, (61), 18 states have call predecessors, (61), 17 states have call successors, (61) [2024-11-09 05:53:50,670 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1128 transitions. [2024-11-09 05:53:50,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2024-11-09 05:53:50,673 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:53:50,673 INFO L215 NwaCegarLoop]: trace histogram [43, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:53:50,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-09 05:53:50,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:53:50,877 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:53:50,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:53:50,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1311174250, now seen corresponding path program 3 times [2024-11-09 05:53:50,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:53:50,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599678195] [2024-11-09 05:53:50,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:53:50,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:53:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:53:51,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2628 backedges. 0 proven. 816 refuted. 0 times theorem prover too weak. 1812 trivial. 0 not checked. [2024-11-09 05:53:51,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:53:51,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599678195] [2024-11-09 05:53:51,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599678195] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:53:51,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938696205] [2024-11-09 05:53:51,513 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:53:51,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:53:51,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:53:51,514 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:53:51,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-09 05:53:51,632 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:53:51,632 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:53:51,634 INFO L255 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 05:53:51,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:53:52,361 INFO L134 CoverageAnalysis]: Checked inductivity of 2628 backedges. 0 proven. 816 refuted. 0 times theorem prover too weak. 1812 trivial. 0 not checked. [2024-11-09 05:53:52,361 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:53:53,108 INFO L134 CoverageAnalysis]: Checked inductivity of 2628 backedges. 0 proven. 816 refuted. 0 times theorem prover too weak. 1812 trivial. 0 not checked. [2024-11-09 05:53:53,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938696205] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:53:53,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [866065303] [2024-11-09 05:53:53,109 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:53:53,109 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:53:53,109 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:53:53,110 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:53:53,110 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:54:02,751 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:54:02,752 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:54:02,753 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:54:07,903 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '58138#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 1 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 20) (<= |ULTIMATE.start_main_~x~0#1| 20))' at error location [2024-11-09 05:54:07,903 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:54:07,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:54:07,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 38 [2024-11-09 05:54:07,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679859323] [2024-11-09 05:54:07,904 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:54:07,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-09 05:54:07,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:54:07,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-09 05:54:07,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=715, Invalid=4835, Unknown=0, NotChecked=0, Total=5550 [2024-11-09 05:54:07,907 INFO L87 Difference]: Start difference. First operand 938 states and 1128 transitions. Second operand has 39 states, 38 states have (on average 14.973684210526315) internal successors, (569), 39 states have internal predecessors, (569), 38 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 38 states have call predecessors, (128), 38 states have call successors, (128) [2024-11-09 05:54:10,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:54:10,971 INFO L93 Difference]: Finished difference Result 2460 states and 2970 transitions. [2024-11-09 05:54:10,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-09 05:54:10,972 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 14.973684210526315) internal successors, (569), 39 states have internal predecessors, (569), 38 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 38 states have call predecessors, (128), 38 states have call successors, (128) Word has length 333 [2024-11-09 05:54:10,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:54:10,980 INFO L225 Difference]: With dead ends: 2460 [2024-11-09 05:54:10,980 INFO L226 Difference]: Without dead ends: 2358 [2024-11-09 05:54:10,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1043 GetRequests, 882 SyntacticMatches, 56 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10594 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=1936, Invalid=9406, Unknown=0, NotChecked=0, Total=11342 [2024-11-09 05:54:10,982 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 1748 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1771 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:54:10,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1771 Valid, 726 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 05:54:10,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2358 states. [2024-11-09 05:54:11,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2358 to 1650. [2024-11-09 05:54:11,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1650 states, 1346 states have (on average 1.0304606240713223) internal successors, (1387), 1346 states have internal predecessors, (1387), 300 states have call successors, (300), 3 states have call predecessors, (300), 3 states have return successors, (300), 300 states have call predecessors, (300), 300 states have call successors, (300) [2024-11-09 05:54:11,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1650 states to 1650 states and 1987 transitions. [2024-11-09 05:54:11,375 INFO L78 Accepts]: Start accepts. Automaton has 1650 states and 1987 transitions. Word has length 333 [2024-11-09 05:54:11,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:54:11,375 INFO L471 AbstractCegarLoop]: Abstraction has 1650 states and 1987 transitions. [2024-11-09 05:54:11,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 14.973684210526315) internal successors, (569), 39 states have internal predecessors, (569), 38 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 38 states have call predecessors, (128), 38 states have call successors, (128) [2024-11-09 05:54:11,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1650 states and 1987 transitions. [2024-11-09 05:54:11,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2024-11-09 05:54:11,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:54:11,382 INFO L215 NwaCegarLoop]: trace histogram [55, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:54:11,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-09 05:54:11,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:54:11,583 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:54:11,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:54:11,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1788660898, now seen corresponding path program 4 times [2024-11-09 05:54:11,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:54:11,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110596692] [2024-11-09 05:54:11,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:54:11,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:54:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:54:12,498 INFO L134 CoverageAnalysis]: Checked inductivity of 4437 backedges. 0 proven. 1461 refuted. 0 times theorem prover too weak. 2976 trivial. 0 not checked. [2024-11-09 05:54:12,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:54:12,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110596692] [2024-11-09 05:54:12,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110596692] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:54:12,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681576043] [2024-11-09 05:54:12,499 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 05:54:12,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:54:12,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:54:12,501 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:54:12,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-09 05:54:12,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:54:12,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:54:12,689 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:54:12,989 INFO L134 CoverageAnalysis]: Checked inductivity of 4437 backedges. 1739 proven. 157 refuted. 0 times theorem prover too weak. 2541 trivial. 0 not checked. [2024-11-09 05:54:12,989 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:54:13,505 INFO L134 CoverageAnalysis]: Checked inductivity of 4437 backedges. 987 proven. 157 refuted. 0 times theorem prover too weak. 3293 trivial. 0 not checked. [2024-11-09 05:54:13,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681576043] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:54:13,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [117846476] [2024-11-09 05:54:13,507 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:54:13,507 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:54:13,508 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:54:13,508 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:54:13,508 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:54:23,149 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:54:23,150 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:54:23,151 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:54:29,269 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '65857#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 1 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 20) (<= |ULTIMATE.start_main_~x~0#1| 20))' at error location [2024-11-09 05:54:29,269 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:54:29,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:54:29,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 9, 9] total 27 [2024-11-09 05:54:29,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413462745] [2024-11-09 05:54:29,270 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:54:29,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-09 05:54:29,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:54:29,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-09 05:54:29,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=362, Invalid=3544, Unknown=0, NotChecked=0, Total=3906 [2024-11-09 05:54:29,273 INFO L87 Difference]: Start difference. First operand 1650 states and 1987 transitions. Second operand has 27 states, 27 states have (on average 15.11111111111111) internal successors, (408), 27 states have internal predecessors, (408), 25 states have call successors, (95), 2 states have call predecessors, (95), 2 states have return successors, (95), 25 states have call predecessors, (95), 25 states have call successors, (95) [2024-11-09 05:54:32,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:54:32,142 INFO L93 Difference]: Finished difference Result 2745 states and 3295 transitions. [2024-11-09 05:54:32,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-09 05:54:32,143 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 15.11111111111111) internal successors, (408), 27 states have internal predecessors, (408), 25 states have call successors, (95), 2 states have call predecessors, (95), 2 states have return successors, (95), 25 states have call predecessors, (95), 25 states have call successors, (95) Word has length 423 [2024-11-09 05:54:32,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:54:32,149 INFO L225 Difference]: With dead ends: 2745 [2024-11-09 05:54:32,150 INFO L226 Difference]: Without dead ends: 1598 [2024-11-09 05:54:32,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1322 GetRequests, 1150 SyntacticMatches, 76 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7845 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=837, Invalid=8669, Unknown=0, NotChecked=0, Total=9506 [2024-11-09 05:54:32,153 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 582 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 2382 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 2502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 2382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:54:32,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 929 Invalid, 2502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 2382 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 05:54:32,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2024-11-09 05:54:32,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1304. [2024-11-09 05:54:32,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 1064 states have (on average 1.0300751879699248) internal successors, (1096), 1064 states have internal predecessors, (1096), 236 states have call successors, (236), 3 states have call predecessors, (236), 3 states have return successors, (236), 236 states have call predecessors, (236), 236 states have call successors, (236) [2024-11-09 05:54:32,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1568 transitions. [2024-11-09 05:54:32,465 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1568 transitions. Word has length 423 [2024-11-09 05:54:32,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:54:32,465 INFO L471 AbstractCegarLoop]: Abstraction has 1304 states and 1568 transitions. [2024-11-09 05:54:32,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 15.11111111111111) internal successors, (408), 27 states have internal predecessors, (408), 25 states have call successors, (95), 2 states have call predecessors, (95), 2 states have return successors, (95), 25 states have call predecessors, (95), 25 states have call successors, (95) [2024-11-09 05:54:32,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1568 transitions. [2024-11-09 05:54:32,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2024-11-09 05:54:32,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:54:32,470 INFO L215 NwaCegarLoop]: trace histogram [55, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:54:32,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-09 05:54:32,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:54:32,671 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:54:32,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:54:32,671 INFO L85 PathProgramCache]: Analyzing trace with hash -272956854, now seen corresponding path program 5 times [2024-11-09 05:54:32,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:54:32,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754587280] [2024-11-09 05:54:32,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:54:32,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:54:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:54:33,616 INFO L134 CoverageAnalysis]: Checked inductivity of 4437 backedges. 0 proven. 1461 refuted. 0 times theorem prover too weak. 2976 trivial. 0 not checked. [2024-11-09 05:54:33,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:54:33,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754587280] [2024-11-09 05:54:33,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754587280] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:54:33,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416885877] [2024-11-09 05:54:33,617 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:54:33,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:54:33,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:54:33,619 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:54:33,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-09 05:54:33,720 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 05:54:33,721 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:54:33,722 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 05:54:33,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:54:34,852 INFO L134 CoverageAnalysis]: Checked inductivity of 4437 backedges. 100 proven. 174 refuted. 0 times theorem prover too weak. 4163 trivial. 0 not checked. [2024-11-09 05:54:34,853 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:54:35,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416885877] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:54:35,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1357444442] [2024-11-09 05:54:35,261 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:54:35,261 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:54:35,261 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:54:35,262 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:54:35,262 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:54:44,503 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:54:44,504 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:54:44,505 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:54:50,773 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '72364#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 1 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 20) (<= |ULTIMATE.start_main_~x~0#1| 20))' at error location [2024-11-09 05:54:50,773 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:54:50,773 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:54:50,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 7] total 23 [2024-11-09 05:54:50,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035094881] [2024-11-09 05:54:50,774 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:54:50,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-09 05:54:50,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:54:50,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-09 05:54:50,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=489, Invalid=3543, Unknown=0, NotChecked=0, Total=4032 [2024-11-09 05:54:50,776 INFO L87 Difference]: Start difference. First operand 1304 states and 1568 transitions. Second operand has 24 states, 21 states have (on average 14.333333333333334) internal successors, (301), 23 states have internal predecessors, (301), 19 states have call successors, (69), 1 states have call predecessors, (69), 3 states have return successors, (72), 20 states have call predecessors, (72), 19 states have call successors, (72) [2024-11-09 05:54:54,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:54:54,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:54:54,463 INFO L93 Difference]: Finished difference Result 2062 states and 2474 transitions. [2024-11-09 05:54:54,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-09 05:54:54,464 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 14.333333333333334) internal successors, (301), 23 states have internal predecessors, (301), 19 states have call successors, (69), 1 states have call predecessors, (69), 3 states have return successors, (72), 20 states have call predecessors, (72), 19 states have call successors, (72) Word has length 423 [2024-11-09 05:54:54,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:54:54,472 INFO L225 Difference]: With dead ends: 2062 [2024-11-09 05:54:54,472 INFO L226 Difference]: Without dead ends: 1827 [2024-11-09 05:54:54,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 931 GetRequests, 761 SyntacticMatches, 71 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9685 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=1416, Invalid=8684, Unknown=0, NotChecked=0, Total=10100 [2024-11-09 05:54:54,475 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 747 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:54:54,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [747 Valid, 249 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 05:54:54,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1827 states. [2024-11-09 05:54:54,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1827 to 1153. [2024-11-09 05:54:54,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 940 states have (on average 1.024468085106383) internal successors, (963), 940 states have internal predecessors, (963), 209 states have call successors, (209), 3 states have call predecessors, (209), 3 states have return successors, (209), 209 states have call predecessors, (209), 209 states have call successors, (209) [2024-11-09 05:54:54,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1381 transitions. [2024-11-09 05:54:54,781 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1381 transitions. Word has length 423 [2024-11-09 05:54:54,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:54:54,782 INFO L471 AbstractCegarLoop]: Abstraction has 1153 states and 1381 transitions. [2024-11-09 05:54:54,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 14.333333333333334) internal successors, (301), 23 states have internal predecessors, (301), 19 states have call successors, (69), 1 states have call predecessors, (69), 3 states have return successors, (72), 20 states have call predecessors, (72), 19 states have call successors, (72) [2024-11-09 05:54:54,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1381 transitions. [2024-11-09 05:54:54,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2024-11-09 05:54:54,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:54:54,787 INFO L215 NwaCegarLoop]: trace histogram [59, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:54:54,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-09 05:54:54,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:54:54,988 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:54:54,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:54:54,988 INFO L85 PathProgramCache]: Analyzing trace with hash 319384142, now seen corresponding path program 6 times [2024-11-09 05:54:54,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:54:54,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222265664] [2024-11-09 05:54:54,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:54:54,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:54:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:54:55,907 INFO L134 CoverageAnalysis]: Checked inductivity of 5148 backedges. 0 proven. 1720 refuted. 0 times theorem prover too weak. 3428 trivial. 0 not checked. [2024-11-09 05:54:55,907 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:54:55,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222265664] [2024-11-09 05:54:55,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222265664] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:54:55,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818108516] [2024-11-09 05:54:55,908 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:54:55,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:54:55,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:54:55,910 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:54:55,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-09 05:54:56,076 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:54:56,076 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:54:56,079 INFO L255 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 05:54:56,083 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:54:56,661 INFO L134 CoverageAnalysis]: Checked inductivity of 5148 backedges. 1825 proven. 1039 refuted. 0 times theorem prover too weak. 2284 trivial. 0 not checked. [2024-11-09 05:54:56,661 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:54:57,383 INFO L134 CoverageAnalysis]: Checked inductivity of 5148 backedges. 629 proven. 1039 refuted. 0 times theorem prover too weak. 3480 trivial. 0 not checked. [2024-11-09 05:54:57,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818108516] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:54:57,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1728731543] [2024-11-09 05:54:57,385 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:54:57,385 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:54:57,385 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:54:57,385 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:54:57,385 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:55:06,476 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:55:06,477 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:55:06,478 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:55:13,937 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '79189#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 1 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 20) (<= |ULTIMATE.start_main_~x~0#1| 20))' at error location [2024-11-09 05:55:13,937 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:55:13,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:55:13,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15, 15] total 37 [2024-11-09 05:55:13,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299266537] [2024-11-09 05:55:13,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:55:13,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-09 05:55:13,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:55:13,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-09 05:55:13,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=392, Invalid=4720, Unknown=0, NotChecked=0, Total=5112 [2024-11-09 05:55:13,941 INFO L87 Difference]: Start difference. First operand 1153 states and 1381 transitions. Second operand has 37 states, 37 states have (on average 15.486486486486486) internal successors, (573), 37 states have internal predecessors, (573), 35 states have call successors, (135), 2 states have call predecessors, (135), 2 states have return successors, (135), 35 states have call predecessors, (135), 35 states have call successors, (135) [2024-11-09 05:55:23,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:55:23,436 INFO L93 Difference]: Finished difference Result 2653 states and 3167 transitions. [2024-11-09 05:55:23,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2024-11-09 05:55:23,436 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 15.486486486486486) internal successors, (573), 37 states have internal predecessors, (573), 35 states have call successors, (135), 2 states have call predecessors, (135), 2 states have return successors, (135), 35 states have call predecessors, (135), 35 states have call successors, (135) Word has length 453 [2024-11-09 05:55:23,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:55:23,444 INFO L225 Difference]: With dead ends: 2653 [2024-11-09 05:55:23,444 INFO L226 Difference]: Without dead ends: 2385 [2024-11-09 05:55:23,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1484 GetRequests, 1230 SyntacticMatches, 84 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15841 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=2205, Invalid=27207, Unknown=0, NotChecked=0, Total=29412 [2024-11-09 05:55:23,447 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 1556 mSDsluCounter, 2783 mSDsCounter, 0 mSdLazyCounter, 7791 mSolverCounterSat, 371 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1577 SdHoareTripleChecker+Valid, 2983 SdHoareTripleChecker+Invalid, 8162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 371 IncrementalHoareTripleChecker+Valid, 7791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:55:23,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1577 Valid, 2983 Invalid, 8162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [371 Valid, 7791 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-09 05:55:23,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2385 states. [2024-11-09 05:55:23,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2385 to 1568. [2024-11-09 05:55:23,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1280 states have (on average 1.025) internal successors, (1312), 1280 states have internal predecessors, (1312), 284 states have call successors, (284), 3 states have call predecessors, (284), 3 states have return successors, (284), 284 states have call predecessors, (284), 284 states have call successors, (284) [2024-11-09 05:55:23,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 1880 transitions. [2024-11-09 05:55:23,867 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 1880 transitions. Word has length 453 [2024-11-09 05:55:23,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:55:23,868 INFO L471 AbstractCegarLoop]: Abstraction has 1568 states and 1880 transitions. [2024-11-09 05:55:23,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 15.486486486486486) internal successors, (573), 37 states have internal predecessors, (573), 35 states have call successors, (135), 2 states have call predecessors, (135), 2 states have return successors, (135), 35 states have call predecessors, (135), 35 states have call successors, (135) [2024-11-09 05:55:23,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 1880 transitions. [2024-11-09 05:55:23,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2024-11-09 05:55:23,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:55:23,874 INFO L215 NwaCegarLoop]: trace histogram [63, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:55:23,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-09 05:55:24,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:55:24,075 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:55:24,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:55:24,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1946255846, now seen corresponding path program 7 times [2024-11-09 05:55:24,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:55:24,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405250932] [2024-11-09 05:55:24,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:55:24,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:55:24,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:55:25,016 INFO L134 CoverageAnalysis]: Checked inductivity of 5913 backedges. 0 proven. 2001 refuted. 0 times theorem prover too weak. 3912 trivial. 0 not checked. [2024-11-09 05:55:25,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:55:25,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405250932] [2024-11-09 05:55:25,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405250932] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:55:25,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433791094] [2024-11-09 05:55:25,016 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 05:55:25,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:55:25,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:55:25,018 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:55:25,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-09 05:55:25,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:55:25,174 INFO L255 TraceCheckSpWp]: Trace formula consists of 781 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 05:55:25,179 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:55:26,311 INFO L134 CoverageAnalysis]: Checked inductivity of 5913 backedges. 0 proven. 2001 refuted. 0 times theorem prover too weak. 3912 trivial. 0 not checked. [2024-11-09 05:55:26,312 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:55:27,399 INFO L134 CoverageAnalysis]: Checked inductivity of 5913 backedges. 0 proven. 2001 refuted. 0 times theorem prover too weak. 3912 trivial. 0 not checked. [2024-11-09 05:55:27,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433791094] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:55:27,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2092152709] [2024-11-09 05:55:27,400 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:55:27,400 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:55:27,400 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:55:27,401 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:55:27,401 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:55:37,273 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:55:37,274 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:55:37,275 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:55:42,815 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '87578#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 1 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 20) (<= |ULTIMATE.start_main_~x~0#1| 20))' at error location [2024-11-09 05:55:42,815 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:55:42,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:55:42,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 53 [2024-11-09 05:55:42,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641791909] [2024-11-09 05:55:42,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:55:42,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-11-09 05:55:42,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:55:42,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-11-09 05:55:42,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1108, Invalid=6724, Unknown=0, NotChecked=0, Total=7832 [2024-11-09 05:55:42,819 INFO L87 Difference]: Start difference. First operand 1568 states and 1880 transitions. Second operand has 54 states, 53 states have (on average 15.830188679245284) internal successors, (839), 54 states have internal predecessors, (839), 53 states have call successors, (188), 1 states have call predecessors, (188), 1 states have return successors, (188), 53 states have call predecessors, (188), 53 states have call successors, (188) [2024-11-09 05:55:47,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:55:47,396 INFO L93 Difference]: Finished difference Result 3957 states and 4758 transitions. [2024-11-09 05:55:47,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2024-11-09 05:55:47,397 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 15.830188679245284) internal successors, (839), 54 states have internal predecessors, (839), 53 states have call successors, (188), 1 states have call predecessors, (188), 1 states have return successors, (188), 53 states have call predecessors, (188), 53 states have call successors, (188) Word has length 483 [2024-11-09 05:55:47,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:55:47,412 INFO L225 Difference]: With dead ends: 3957 [2024-11-09 05:55:47,417 INFO L226 Difference]: Without dead ends: 3692 [2024-11-09 05:55:47,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1507 GetRequests, 1298 SyntacticMatches, 81 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17631 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=3055, Invalid=13715, Unknown=0, NotChecked=0, Total=16770 [2024-11-09 05:55:47,421 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 2492 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 632 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2517 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 1997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 632 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:55:47,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2517 Valid, 926 Invalid, 1997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [632 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 05:55:47,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3692 states. [2024-11-09 05:55:48,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3692 to 2566. [2024-11-09 05:55:48,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 2096 states have (on average 1.025763358778626) internal successors, (2150), 2096 states have internal predecessors, (2150), 466 states have call successors, (466), 3 states have call predecessors, (466), 3 states have return successors, (466), 466 states have call predecessors, (466), 466 states have call successors, (466) [2024-11-09 05:55:48,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 3082 transitions. [2024-11-09 05:55:48,602 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 3082 transitions. Word has length 483 [2024-11-09 05:55:48,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:55:48,603 INFO L471 AbstractCegarLoop]: Abstraction has 2566 states and 3082 transitions. [2024-11-09 05:55:48,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 15.830188679245284) internal successors, (839), 54 states have internal predecessors, (839), 53 states have call successors, (188), 1 states have call predecessors, (188), 1 states have return successors, (188), 53 states have call predecessors, (188), 53 states have call successors, (188) [2024-11-09 05:55:48,603 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 3082 transitions. [2024-11-09 05:55:48,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2024-11-09 05:55:48,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:55:48,610 INFO L215 NwaCegarLoop]: trace histogram [67, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:55:48,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-09 05:55:48,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-09 05:55:48,810 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:55:48,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:55:48,811 INFO L85 PathProgramCache]: Analyzing trace with hash -936795762, now seen corresponding path program 8 times [2024-11-09 05:55:48,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:55:48,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957308514] [2024-11-09 05:55:48,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:55:48,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:55:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:55:49,749 INFO L134 CoverageAnalysis]: Checked inductivity of 6732 backedges. 0 proven. 2304 refuted. 0 times theorem prover too weak. 4428 trivial. 0 not checked. [2024-11-09 05:55:49,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:55:49,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957308514] [2024-11-09 05:55:49,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957308514] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:55:49,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183280566] [2024-11-09 05:55:49,749 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:55:49,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:55:49,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:55:49,751 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:55:49,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-09 05:55:49,858 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 05:55:49,858 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:55:49,859 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 05:55:49,864 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:55:53,084 INFO L134 CoverageAnalysis]: Checked inductivity of 6732 backedges. 1117 proven. 500 refuted. 0 times theorem prover too weak. 5115 trivial. 0 not checked. [2024-11-09 05:55:53,085 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:55:53,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183280566] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:55:53,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [853083017] [2024-11-09 05:55:53,794 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:55:53,794 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:55:53,794 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:55:53,794 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:55:53,794 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:56:04,177 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:56:04,178 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:56:04,178 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:56:13,083 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '97380#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 1 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 20) (<= |ULTIMATE.start_main_~x~0#1| 20))' at error location [2024-11-09 05:56:13,083 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:56:13,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:56:13,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15] total 34 [2024-11-09 05:56:13,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149637436] [2024-11-09 05:56:13,083 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:56:13,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-09 05:56:13,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:56:13,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-09 05:56:13,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=470, Invalid=4932, Unknown=0, NotChecked=0, Total=5402 [2024-11-09 05:56:13,086 INFO L87 Difference]: Start difference. First operand 2566 states and 3082 transitions. Second operand has 35 states, 31 states have (on average 13.193548387096774) internal successors, (409), 33 states have internal predecessors, (409), 27 states have call successors, (93), 1 states have call predecessors, (93), 3 states have return successors, (94), 28 states have call predecessors, (94), 27 states have call successors, (94) [2024-11-09 05:56:18,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:56:18,623 INFO L93 Difference]: Finished difference Result 2698 states and 3234 transitions. [2024-11-09 05:56:18,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-09 05:56:18,623 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 31 states have (on average 13.193548387096774) internal successors, (409), 33 states have internal predecessors, (409), 27 states have call successors, (93), 1 states have call predecessors, (93), 3 states have return successors, (94), 28 states have call predecessors, (94), 27 states have call successors, (94) Word has length 513 [2024-11-09 05:56:18,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:56:18,624 INFO L225 Difference]: With dead ends: 2698 [2024-11-09 05:56:18,624 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 05:56:18,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1107 GetRequests, 915 SyntacticMatches, 86 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10699 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=1383, Invalid=10173, Unknown=0, NotChecked=0, Total=11556 [2024-11-09 05:56:18,629 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 411 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 1770 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 1892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:56:18,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 652 Invalid, 1892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1770 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-09 05:56:18,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 05:56:18,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 05:56:18,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 05:56:18,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 05:56:18,632 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 513 [2024-11-09 05:56:18,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:56:18,632 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 05:56:18,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 31 states have (on average 13.193548387096774) internal successors, (409), 33 states have internal predecessors, (409), 27 states have call successors, (93), 1 states have call predecessors, (93), 3 states have return successors, (94), 28 states have call predecessors, (94), 27 states have call successors, (94) [2024-11-09 05:56:18,632 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 05:56:18,633 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 05:56:18,635 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 30 remaining) [2024-11-09 05:56:18,636 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 30 remaining) [2024-11-09 05:56:18,636 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 30 remaining) [2024-11-09 05:56:18,636 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 30 remaining) [2024-11-09 05:56:18,636 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 30 remaining) [2024-11-09 05:56:18,636 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 30 remaining) [2024-11-09 05:56:18,637 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 30 remaining) [2024-11-09 05:56:18,637 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 30 remaining) [2024-11-09 05:56:18,637 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 30 remaining) [2024-11-09 05:56:18,637 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 30 remaining) [2024-11-09 05:56:18,637 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 30 remaining) [2024-11-09 05:56:18,637 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 30 remaining) [2024-11-09 05:56:18,638 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 30 remaining) [2024-11-09 05:56:18,638 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 30 remaining) [2024-11-09 05:56:18,638 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 30 remaining) [2024-11-09 05:56:18,638 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 30 remaining) [2024-11-09 05:56:18,638 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 30 remaining) [2024-11-09 05:56:18,638 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 30 remaining) [2024-11-09 05:56:18,639 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 30 remaining) [2024-11-09 05:56:18,639 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 30 remaining) [2024-11-09 05:56:18,639 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 30 remaining) [2024-11-09 05:56:18,639 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 30 remaining) [2024-11-09 05:56:18,639 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 30 remaining) [2024-11-09 05:56:18,639 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 30 remaining) [2024-11-09 05:56:18,639 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 30 remaining) [2024-11-09 05:56:18,640 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 30 remaining) [2024-11-09 05:56:18,640 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 30 remaining) [2024-11-09 05:56:18,640 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 30 remaining) [2024-11-09 05:56:18,640 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 30 remaining) [2024-11-09 05:56:18,640 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 30 remaining) [2024-11-09 05:56:18,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-09 05:56:18,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79400a68-cec4-44b9-ba8a-5d552a3ab61d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-09 05:56:18,843 INFO L407 BasicCegarLoop]: Path program histogram: [8, 5, 5, 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] [2024-11-09 05:56:18,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.