./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/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_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/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_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/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 3f9b33d2a8120d9ea8a3a6c5d650c2a90b549ffb583b3e9890b411aeb4530efd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:11:54,017 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:11:54,075 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 05:11:54,080 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:11:54,080 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:11:54,101 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:11:54,102 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:11:54,102 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:11:54,103 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:11:54,103 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:11:54,103 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:11:54,104 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:11:54,104 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:11:54,105 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:11:54,105 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:11:54,105 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:11:54,106 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:11:54,106 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:11:54,107 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:11:54,107 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:11:54,107 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:11:54,108 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:11:54,109 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:11:54,109 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:11:54,109 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:11:54,110 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:11:54,110 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:11:54,110 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:11:54,111 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:11:54,111 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:11:54,112 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:11:54,112 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:11:54,112 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 05:11:54,113 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:11:54,113 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:11:54,113 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:11:54,114 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:11:54,114 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:11:54,114 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:11:54,115 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:11:54,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:11:54,116 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:11:54,116 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:11:54,116 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:11:54,117 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:11:54,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:11:54,117 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:11:54,117 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:11:54,122 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:11:54,122 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_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f9b33d2a8120d9ea8a3a6c5d650c2a90b549ffb583b3e9890b411aeb4530efd [2024-11-09 05:11:54,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:11:54,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:11:54,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:11:54,404 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:11:54,405 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:11:54,406 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound5.c Unable to find full path for "g++" [2024-11-09 05:11:56,545 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:11:56,737 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:11:56,738 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound5.c [2024-11-09 05:11:56,747 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/data/a33360947/5f3a86d6127e4533b94f314d138939ef/FLAGbe42f16ce [2024-11-09 05:11:56,764 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/data/a33360947/5f3a86d6127e4533b94f314d138939ef [2024-11-09 05:11:56,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:11:56,769 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:11:56,771 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:11:56,771 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:11:56,778 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:11:56,780 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:11:56" (1/1) ... [2024-11-09 05:11:56,781 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48927707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:56, skipping insertion in model container [2024-11-09 05:11:56,781 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:11:56" (1/1) ... [2024-11-09 05:11:56,810 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:11:57,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:11:57,035 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:11:57,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:11:57,077 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:11:57,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:57 WrapperNode [2024-11-09 05:11:57,078 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:11:57,079 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:11:57,079 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:11:57,080 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:11:57,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:57" (1/1) ... [2024-11-09 05:11:57,094 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:57" (1/1) ... [2024-11-09 05:11:57,119 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 118 [2024-11-09 05:11:57,120 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:11:57,121 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:11:57,121 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:11:57,121 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:11:57,132 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:57" (1/1) ... [2024-11-09 05:11:57,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:57" (1/1) ... [2024-11-09 05:11:57,134 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:57" (1/1) ... [2024-11-09 05:11:57,135 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:57" (1/1) ... [2024-11-09 05:11:57,139 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:57" (1/1) ... [2024-11-09 05:11:57,147 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:57" (1/1) ... [2024-11-09 05:11:57,148 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:57" (1/1) ... [2024-11-09 05:11:57,154 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:57" (1/1) ... [2024-11-09 05:11:57,157 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:11:57,158 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:11:57,158 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:11:57,158 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:11:57,165 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:57" (1/1) ... [2024-11-09 05:11:57,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:11:57,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:11:57,207 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:11:57,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:11:57,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:11:57,251 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:11:57,252 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:11:57,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:11:57,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:11:57,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:11:57,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 05:11:57,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 05:11:57,333 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:11:57,335 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:11:58,205 INFO L? ?]: Removed 157 outVars from TransFormulas that were not future-live. [2024-11-09 05:11:58,205 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:11:58,274 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:11:58,274 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:11:58,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:11:58 BoogieIcfgContainer [2024-11-09 05:11:58,279 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:11:58,282 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:11:58,282 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:11:58,288 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:11:58,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:11:56" (1/3) ... [2024-11-09 05:11:58,290 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@469a9635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:11:58, skipping insertion in model container [2024-11-09 05:11:58,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:57" (2/3) ... [2024-11-09 05:11:58,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@469a9635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:11:58, skipping insertion in model container [2024-11-09 05:11:58,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:11:58" (3/3) ... [2024-11-09 05:11:58,292 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd-ll_valuebound5.c [2024-11-09 05:11:58,322 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:11:58,323 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2024-11-09 05:11:58,409 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:11:58,416 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;@35fed5c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:11:58,417 INFO L334 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2024-11-09 05:11:58,421 INFO L276 IsEmpty]: Start isEmpty. Operand has 135 states, 65 states have (on average 1.9076923076923078) internal successors, (124), 121 states have internal predecessors, (124), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 05:11:58,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 05:11:58,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:11:58,430 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:11:58,430 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:11:58,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:11:58,437 INFO L85 PathProgramCache]: Analyzing trace with hash -740955412, now seen corresponding path program 1 times [2024-11-09 05:11:58,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:11:58,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588255096] [2024-11-09 05:11:58,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:58,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:11:58,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:11:58,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1486552989] [2024-11-09 05:11:58,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:58,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:11:58,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:11:58,584 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:11:58,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:11:58,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:11:58,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:11:58,681 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:11:58,736 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:11:58,736 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:11:58,736 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:11:58,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588255096] [2024-11-09 05:11:58,737 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:11:58,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486552989] [2024-11-09 05:11:58,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486552989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:11:58,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:11:58,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:11:58,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737836879] [2024-11-09 05:11:58,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:11:58,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:11:58,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:11:58,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:11:58,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:11:58,782 INFO L87 Difference]: Start difference. First operand has 135 states, 65 states have (on average 1.9076923076923078) internal successors, (124), 121 states have internal predecessors, (124), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:11:59,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:11:59,286 INFO L93 Difference]: Finished difference Result 280 states and 337 transitions. [2024-11-09 05:11:59,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:11:59,290 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 17 [2024-11-09 05:11:59,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:11:59,305 INFO L225 Difference]: With dead ends: 280 [2024-11-09 05:11:59,305 INFO L226 Difference]: Without dead ends: 213 [2024-11-09 05:11:59,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 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 05:11:59,315 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 74 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:11:59,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 137 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:11:59,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-09 05:11:59,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 171. [2024-11-09 05:11:59,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 98 states have (on average 1.8775510204081634) internal successors, (184), 153 states have internal predecessors, (184), 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 05:11:59,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 214 transitions. [2024-11-09 05:11:59,409 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 214 transitions. Word has length 17 [2024-11-09 05:11:59,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:11:59,409 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 214 transitions. [2024-11-09 05:11:59,410 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:11:59,410 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 214 transitions. [2024-11-09 05:11:59,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 05:11:59,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:11:59,412 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:11:59,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 05:11:59,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 05:11:59,613 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:11:59,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:11:59,614 INFO L85 PathProgramCache]: Analyzing trace with hash 906421806, now seen corresponding path program 1 times [2024-11-09 05:11:59,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:11:59,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105664667] [2024-11-09 05:11:59,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:59,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:11:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:11:59,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [832219857] [2024-11-09 05:11:59,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:59,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:11:59,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:11:59,641 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:11:59,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:11:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:11:59,692 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:11:59,694 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:11:59,709 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:11:59,709 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:11:59,710 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:11:59,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105664667] [2024-11-09 05:11:59,710 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:11:59,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832219857] [2024-11-09 05:11:59,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832219857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:11:59,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:11:59,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:11:59,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873805695] [2024-11-09 05:11:59,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:11:59,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:11:59,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:11:59,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:11:59,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:11:59,714 INFO L87 Difference]: Start difference. First operand 171 states and 214 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:12:00,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:00,168 INFO L93 Difference]: Finished difference Result 272 states and 338 transitions. [2024-11-09 05:12:00,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:12:00,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 19 [2024-11-09 05:12:00,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:00,172 INFO L225 Difference]: With dead ends: 272 [2024-11-09 05:12:00,172 INFO L226 Difference]: Without dead ends: 264 [2024-11-09 05:12:00,173 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 05:12:00,175 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 84 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:00,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 191 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:12:00,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-09 05:12:00,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 224. [2024-11-09 05:12:00,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 145 states have (on average 1.813793103448276) internal successors, (263), 200 states have internal predecessors, (263), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-09 05:12:00,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 305 transitions. [2024-11-09 05:12:00,197 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 305 transitions. Word has length 19 [2024-11-09 05:12:00,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:00,197 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 305 transitions. [2024-11-09 05:12:00,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:12:00,198 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 305 transitions. [2024-11-09 05:12:00,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 05:12:00,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:00,199 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:12:00,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:12:00,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:00,403 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:12:00,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:00,404 INFO L85 PathProgramCache]: Analyzing trace with hash -807003792, now seen corresponding path program 1 times [2024-11-09 05:12:00,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:00,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715989235] [2024-11-09 05:12:00,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:00,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:00,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:12:00,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [310627399] [2024-11-09 05:12:00,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:00,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:00,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:12:00,435 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:12:00,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:12:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:00,490 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:12:00,492 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:00,603 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:12:00,603 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:12:00,603 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:00,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715989235] [2024-11-09 05:12:00,604 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:12:00,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310627399] [2024-11-09 05:12:00,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310627399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:12:00,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:12:00,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:12:00,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734457740] [2024-11-09 05:12:00,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:12:00,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:12:00,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:00,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:12:00,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:12:00,606 INFO L87 Difference]: Start difference. First operand 224 states and 305 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:12:01,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:01,253 INFO L93 Difference]: Finished difference Result 258 states and 324 transitions. [2024-11-09 05:12:01,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:12:01,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 21 [2024-11-09 05:12:01,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:01,255 INFO L225 Difference]: With dead ends: 258 [2024-11-09 05:12:01,255 INFO L226 Difference]: Without dead ends: 244 [2024-11-09 05:12:01,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:12:01,257 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 61 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:01,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 119 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 05:12:01,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-09 05:12:01,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 189. [2024-11-09 05:12:01,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 115 states have (on average 1.7391304347826086) internal successors, (200), 170 states have internal predecessors, (200), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 05:12:01,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 232 transitions. [2024-11-09 05:12:01,273 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 232 transitions. Word has length 21 [2024-11-09 05:12:01,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:01,274 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 232 transitions. [2024-11-09 05:12:01,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:12:01,274 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 232 transitions. [2024-11-09 05:12:01,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 05:12:01,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:01,275 INFO L215 NwaCegarLoop]: trace histogram [4, 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 05:12:01,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 05:12:01,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:01,476 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:12:01,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:01,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1682603225, now seen corresponding path program 1 times [2024-11-09 05:12:01,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:01,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277468214] [2024-11-09 05:12:01,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:01,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:12:01,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1699470300] [2024-11-09 05:12:01,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:01,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:01,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:12:01,508 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:12:01,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:12:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:01,561 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:12:01,563 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:01,606 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:12:01,607 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:12:01,607 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:01,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277468214] [2024-11-09 05:12:01,607 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:12:01,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699470300] [2024-11-09 05:12:01,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699470300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:12:01,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:12:01,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:12:01,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426921703] [2024-11-09 05:12:01,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:12:01,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:12:01,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:01,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:12:01,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:12:01,610 INFO L87 Difference]: Start difference. First operand 189 states and 232 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 05:12:01,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:01,910 INFO L93 Difference]: Finished difference Result 351 states and 451 transitions. [2024-11-09 05:12:01,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:12:01,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 26 [2024-11-09 05:12:01,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:01,913 INFO L225 Difference]: With dead ends: 351 [2024-11-09 05:12:01,914 INFO L226 Difference]: Without dead ends: 343 [2024-11-09 05:12:01,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 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 05:12:01,915 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 84 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:01,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 187 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:12:01,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-09 05:12:01,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 268. [2024-11-09 05:12:01,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 185 states have (on average 1.7081081081081082) internal successors, (316), 240 states have internal predecessors, (316), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:12:01,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 366 transitions. [2024-11-09 05:12:01,938 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 366 transitions. Word has length 26 [2024-11-09 05:12:01,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:01,938 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 366 transitions. [2024-11-09 05:12:01,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 05:12:01,939 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 366 transitions. [2024-11-09 05:12:01,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 05:12:01,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:01,940 INFO L215 NwaCegarLoop]: trace histogram [4, 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 05:12:01,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 05:12:02,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:02,141 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:12:02,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:02,141 INFO L85 PathProgramCache]: Analyzing trace with hash -2073993911, now seen corresponding path program 1 times [2024-11-09 05:12:02,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:02,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083620932] [2024-11-09 05:12:02,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:02,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:12:02,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [420618201] [2024-11-09 05:12:02,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:02,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:02,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:12:02,187 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:12:02,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 05:12:02,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:02,256 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:12:02,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:02,399 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:12:02,400 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:12:02,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:02,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083620932] [2024-11-09 05:12:02,400 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:12:02,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420618201] [2024-11-09 05:12:02,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420618201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:12:02,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:12:02,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:12:02,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254689822] [2024-11-09 05:12:02,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:12:02,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:12:02,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:02,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:12:02,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:12:02,406 INFO L87 Difference]: Start difference. First operand 268 states and 366 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 05:12:02,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:02,905 INFO L93 Difference]: Finished difference Result 321 states and 431 transitions. [2024-11-09 05:12:02,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:12:02,906 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 05:12:02,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:02,908 INFO L225 Difference]: With dead ends: 321 [2024-11-09 05:12:02,909 INFO L226 Difference]: Without dead ends: 319 [2024-11-09 05:12:02,909 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 05:12:02,911 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 231 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:02,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 130 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:12:02,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-09 05:12:02,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 268. [2024-11-09 05:12:02,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 185 states have (on average 1.6864864864864866) internal successors, (312), 240 states have internal predecessors, (312), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:12:02,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 362 transitions. [2024-11-09 05:12:02,948 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 362 transitions. Word has length 28 [2024-11-09 05:12:02,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:02,948 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 362 transitions. [2024-11-09 05:12:02,949 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 05:12:02,949 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 362 transitions. [2024-11-09 05:12:02,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 05:12:02,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:02,950 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 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 05:12:02,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 05:12:03,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:03,155 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:12:03,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:03,156 INFO L85 PathProgramCache]: Analyzing trace with hash 130698266, now seen corresponding path program 1 times [2024-11-09 05:12:03,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:03,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330775875] [2024-11-09 05:12:03,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:03,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:03,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:12:03,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2034914005] [2024-11-09 05:12:03,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:03,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:03,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:12:03,217 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:12:03,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 05:12:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:03,272 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:12:03,274 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:03,408 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:12:03,409 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:12:03,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:03,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330775875] [2024-11-09 05:12:03,409 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:12:03,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034914005] [2024-11-09 05:12:03,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034914005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:12:03,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:12:03,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:12:03,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910336380] [2024-11-09 05:12:03,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:12:03,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:12:03,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:03,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:12:03,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:12:03,416 INFO L87 Difference]: Start difference. First operand 268 states and 362 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 05:12:03,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:03,674 INFO L93 Difference]: Finished difference Result 321 states and 427 transitions. [2024-11-09 05:12:03,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:12:03,675 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 05:12:03,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:03,678 INFO L225 Difference]: With dead ends: 321 [2024-11-09 05:12:03,679 INFO L226 Difference]: Without dead ends: 319 [2024-11-09 05:12:03,679 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 05:12:03,681 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 229 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:03,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 130 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:12:03,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-09 05:12:03,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 268. [2024-11-09 05:12:03,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 185 states have (on average 1.664864864864865) internal successors, (308), 240 states have internal predecessors, (308), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:12:03,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 358 transitions. [2024-11-09 05:12:03,717 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 358 transitions. Word has length 29 [2024-11-09 05:12:03,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:03,717 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 358 transitions. [2024-11-09 05:12:03,718 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 05:12:03,718 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 358 transitions. [2024-11-09 05:12:03,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 05:12:03,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:03,721 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 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 05:12:03,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 05:12:03,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:03,922 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:12:03,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:03,922 INFO L85 PathProgramCache]: Analyzing trace with hash -243320981, now seen corresponding path program 1 times [2024-11-09 05:12:03,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:03,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599211412] [2024-11-09 05:12:03,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:03,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:12:03,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [365537882] [2024-11-09 05:12:03,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:03,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:03,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:12:03,950 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:12:03,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 05:12:04,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:04,001 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:12:04,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:04,058 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:12:04,058 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:12:04,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:04,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599211412] [2024-11-09 05:12:04,059 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:12:04,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365537882] [2024-11-09 05:12:04,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365537882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:12:04,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:12:04,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:12:04,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612912334] [2024-11-09 05:12:04,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:12:04,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:12:04,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:04,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:12:04,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:12:04,066 INFO L87 Difference]: Start difference. First operand 268 states and 358 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 05:12:05,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:05,430 INFO L93 Difference]: Finished difference Result 341 states and 431 transitions. [2024-11-09 05:12:05,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:12:05,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 30 [2024-11-09 05:12:05,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:05,433 INFO L225 Difference]: With dead ends: 341 [2024-11-09 05:12:05,433 INFO L226 Difference]: Without dead ends: 339 [2024-11-09 05:12:05,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 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 05:12:05,435 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 85 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:05,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 203 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 05:12:05,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-09 05:12:05,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 269. [2024-11-09 05:12:05,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 186 states have (on average 1.6451612903225807) internal successors, (306), 241 states have internal predecessors, (306), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:12:05,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 356 transitions. [2024-11-09 05:12:05,453 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 356 transitions. Word has length 30 [2024-11-09 05:12:05,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:05,453 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 356 transitions. [2024-11-09 05:12:05,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 05:12:05,454 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 356 transitions. [2024-11-09 05:12:05,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 05:12:05,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:05,455 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 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 05:12:05,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 05:12:05,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:05,660 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:12:05,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:05,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1046984252, now seen corresponding path program 1 times [2024-11-09 05:12:05,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:05,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684852469] [2024-11-09 05:12:05,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:05,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:12:05,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2015211406] [2024-11-09 05:12:05,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:05,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:05,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:12:05,682 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:12:05,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 05:12:05,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:05,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:12:05,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:05,948 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:12:05,948 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:12:05,948 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:05,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684852469] [2024-11-09 05:12:05,948 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:12:05,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015211406] [2024-11-09 05:12:05,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015211406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:12:05,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:12:05,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:12:05,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030634959] [2024-11-09 05:12:05,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:12:05,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:12:05,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:05,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:12:05,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:12:05,950 INFO L87 Difference]: Start difference. First operand 269 states and 356 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 05:12:07,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:07,387 INFO L93 Difference]: Finished difference Result 341 states and 427 transitions. [2024-11-09 05:12:07,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:12:07,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 31 [2024-11-09 05:12:07,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:07,389 INFO L225 Difference]: With dead ends: 341 [2024-11-09 05:12:07,389 INFO L226 Difference]: Without dead ends: 339 [2024-11-09 05:12:07,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:12:07,390 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 85 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:07,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 206 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 05:12:07,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-09 05:12:07,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 270. [2024-11-09 05:12:07,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 187 states have (on average 1.625668449197861) internal successors, (304), 242 states have internal predecessors, (304), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:12:07,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 354 transitions. [2024-11-09 05:12:07,414 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 354 transitions. Word has length 31 [2024-11-09 05:12:07,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:07,415 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 354 transitions. [2024-11-09 05:12:07,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 05:12:07,415 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 354 transitions. [2024-11-09 05:12:07,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-09 05:12:07,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:07,416 INFO L215 NwaCegarLoop]: trace histogram [4, 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 05:12:07,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 05:12:07,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:07,617 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:12:07,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:07,617 INFO L85 PathProgramCache]: Analyzing trace with hash 597716388, now seen corresponding path program 1 times [2024-11-09 05:12:07,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:07,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478684933] [2024-11-09 05:12:07,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:07,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:07,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:12:07,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1635796763] [2024-11-09 05:12:07,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:07,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:07,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:12:07,661 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:12:07,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 05:12:07,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:07,714 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:12:07,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:07,861 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:12:07,862 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:12:07,862 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:07,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478684933] [2024-11-09 05:12:07,862 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:12:07,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635796763] [2024-11-09 05:12:07,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635796763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:12:07,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:12:07,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:12:07,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781893338] [2024-11-09 05:12:07,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:12:07,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:12:07,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:07,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:12:07,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:12:07,864 INFO L87 Difference]: Start difference. First operand 270 states and 354 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 05:12:08,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:08,445 INFO L93 Difference]: Finished difference Result 292 states and 373 transitions. [2024-11-09 05:12:08,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:12:08,446 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, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 37 [2024-11-09 05:12:08,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:08,447 INFO L225 Difference]: With dead ends: 292 [2024-11-09 05:12:08,448 INFO L226 Difference]: Without dead ends: 290 [2024-11-09 05:12:08,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 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 05:12:08,449 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 155 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:08,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 151 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 05:12:08,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-09 05:12:08,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 271. [2024-11-09 05:12:08,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 188 states have (on average 1.6117021276595744) internal successors, (303), 243 states have internal predecessors, (303), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:12:08,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 353 transitions. [2024-11-09 05:12:08,465 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 353 transitions. Word has length 37 [2024-11-09 05:12:08,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:08,466 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 353 transitions. [2024-11-09 05:12:08,466 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, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 05:12:08,466 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 353 transitions. [2024-11-09 05:12:08,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 05:12:08,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:08,467 INFO L215 NwaCegarLoop]: trace histogram [4, 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 05:12:08,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 05:12:08,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:08,670 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:12:08,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:08,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1349338924, now seen corresponding path program 1 times [2024-11-09 05:12:08,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:08,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676792682] [2024-11-09 05:12:08,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:08,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:12:08,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1937314817] [2024-11-09 05:12:08,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:08,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:08,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:12:08,716 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:12:08,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 05:12:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:08,760 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:12:08,761 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:08,858 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:12:08,858 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:12:08,859 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:08,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676792682] [2024-11-09 05:12:08,859 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:12:08,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937314817] [2024-11-09 05:12:08,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937314817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:12:08,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:12:08,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:12:08,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619312009] [2024-11-09 05:12:08,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:12:08,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:12:08,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:08,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:12:08,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:12:08,862 INFO L87 Difference]: Start difference. First operand 271 states and 353 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, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 05:12:09,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:09,274 INFO L93 Difference]: Finished difference Result 292 states and 370 transitions. [2024-11-09 05:12:09,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:12:09,274 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, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 38 [2024-11-09 05:12:09,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:09,276 INFO L225 Difference]: With dead ends: 292 [2024-11-09 05:12:09,276 INFO L226 Difference]: Without dead ends: 290 [2024-11-09 05:12:09,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 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 05:12:09,277 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 207 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:09,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 140 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:12:09,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-09 05:12:09,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 272. [2024-11-09 05:12:09,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 189 states have (on average 1.597883597883598) internal successors, (302), 244 states have internal predecessors, (302), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:12:09,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 352 transitions. [2024-11-09 05:12:09,293 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 352 transitions. Word has length 38 [2024-11-09 05:12:09,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:09,293 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 352 transitions. [2024-11-09 05:12:09,293 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, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 05:12:09,294 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 352 transitions. [2024-11-09 05:12:09,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 05:12:09,294 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:09,294 INFO L215 NwaCegarLoop]: trace histogram [4, 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 05:12:09,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-09 05:12:09,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:09,495 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:12:09,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:09,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1120166234, now seen corresponding path program 1 times [2024-11-09 05:12:09,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:09,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675011835] [2024-11-09 05:12:09,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:09,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:09,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:12:09,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [126667445] [2024-11-09 05:12:09,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:09,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:09,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:12:09,517 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:12:09,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 05:12:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:09,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:12:09,566 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:09,619 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:12:09,622 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:12:09,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:09,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675011835] [2024-11-09 05:12:09,623 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:12:09,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126667445] [2024-11-09 05:12:09,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126667445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:12:09,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:12:09,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:12:09,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813626160] [2024-11-09 05:12:09,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:12:09,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:12:09,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:09,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:12:09,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:12:09,625 INFO L87 Difference]: Start difference. First operand 272 states and 352 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:12:10,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:10,576 INFO L93 Difference]: Finished difference Result 300 states and 359 transitions. [2024-11-09 05:12:10,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:12:10,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2024-11-09 05:12:10,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:10,578 INFO L225 Difference]: With dead ends: 300 [2024-11-09 05:12:10,578 INFO L226 Difference]: Without dead ends: 298 [2024-11-09 05:12:10,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 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 05:12:10,579 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 127 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:10,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 188 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 05:12:10,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-09 05:12:10,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 273. [2024-11-09 05:12:10,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 190 states have (on average 1.5842105263157895) internal successors, (301), 245 states have internal predecessors, (301), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:12:10,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 351 transitions. [2024-11-09 05:12:10,596 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 351 transitions. Word has length 39 [2024-11-09 05:12:10,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:10,596 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 351 transitions. [2024-11-09 05:12:10,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:12:10,596 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 351 transitions. [2024-11-09 05:12:10,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 05:12:10,597 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:10,597 INFO L215 NwaCegarLoop]: trace histogram [4, 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 05:12:10,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-09 05:12:10,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 05:12:10,803 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:12:10,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:10,803 INFO L85 PathProgramCache]: Analyzing trace with hash -365414802, now seen corresponding path program 1 times [2024-11-09 05:12:10,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:10,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343934119] [2024-11-09 05:12:10,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:10,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:12:10,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1836889974] [2024-11-09 05:12:10,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:10,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:10,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:12:10,841 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:12:10,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 05:12:10,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:10,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:12:10,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:11,070 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:12:11,070 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:12:11,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:11,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343934119] [2024-11-09 05:12:11,071 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:12:11,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836889974] [2024-11-09 05:12:11,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836889974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:12:11,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:12:11,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:12:11,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558923252] [2024-11-09 05:12:11,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:12:11,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:12:11,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:11,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:12:11,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:12:11,073 INFO L87 Difference]: Start difference. First operand 273 states and 351 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:12:12,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:12,418 INFO L93 Difference]: Finished difference Result 300 states and 356 transitions. [2024-11-09 05:12:12,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:12:12,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2024-11-09 05:12:12,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:12,420 INFO L225 Difference]: With dead ends: 300 [2024-11-09 05:12:12,420 INFO L226 Difference]: Without dead ends: 298 [2024-11-09 05:12:12,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:12:12,421 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 77 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:12,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 233 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 05:12:12,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-09 05:12:12,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 274. [2024-11-09 05:12:12,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 191 states have (on average 1.5706806282722514) internal successors, (300), 246 states have internal predecessors, (300), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:12:12,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 350 transitions. [2024-11-09 05:12:12,438 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 350 transitions. Word has length 40 [2024-11-09 05:12:12,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:12,439 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 350 transitions. [2024-11-09 05:12:12,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:12:12,439 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 350 transitions. [2024-11-09 05:12:12,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-09 05:12:12,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:12,442 INFO L215 NwaCegarLoop]: trace histogram [4, 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 05:12:12,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-09 05:12:12,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-09 05:12:12,643 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:12:12,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:12,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1501587617, now seen corresponding path program 1 times [2024-11-09 05:12:12,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:12,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007097241] [2024-11-09 05:12:12,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:12,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:12,805 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 05:12:12,806 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:12,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007097241] [2024-11-09 05:12:12,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007097241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:12:12,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:12:12,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:12:12,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591540998] [2024-11-09 05:12:12,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:12:12,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:12:12,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:12,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:12:12,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:12:12,808 INFO L87 Difference]: Start difference. First operand 274 states and 350 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-09 05:12:12,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:12,862 INFO L93 Difference]: Finished difference Result 274 states and 350 transitions. [2024-11-09 05:12:12,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:12:12,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 45 [2024-11-09 05:12:12,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:12,864 INFO L225 Difference]: With dead ends: 274 [2024-11-09 05:12:12,864 INFO L226 Difference]: Without dead ends: 272 [2024-11-09 05:12:12,865 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 05:12:12,865 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 46 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:12,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 194 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:12:12,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-09 05:12:12,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2024-11-09 05:12:12,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 191 states have (on average 1.5392670157068062) internal successors, (294), 244 states have internal predecessors, (294), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:12:12,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 344 transitions. [2024-11-09 05:12:12,882 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 344 transitions. Word has length 45 [2024-11-09 05:12:12,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:12,883 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 344 transitions. [2024-11-09 05:12:12,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-09 05:12:12,883 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 344 transitions. [2024-11-09 05:12:12,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 05:12:12,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:12,884 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-11-09 05:12:12,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 05:12:12,885 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:12:12,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:12,885 INFO L85 PathProgramCache]: Analyzing trace with hash 695424256, now seen corresponding path program 1 times [2024-11-09 05:12:12,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:12,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899492284] [2024-11-09 05:12:12,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:12,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:12,945 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 05:12:12,945 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:12,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899492284] [2024-11-09 05:12:12,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899492284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:12:12,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:12:12,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:12:12,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794220263] [2024-11-09 05:12:12,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:12:12,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:12:12,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:12,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:12:12,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:12:12,948 INFO L87 Difference]: Start difference. First operand 272 states and 344 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-09 05:12:13,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:13,007 INFO L93 Difference]: Finished difference Result 272 states and 344 transitions. [2024-11-09 05:12:13,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:12:13,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 46 [2024-11-09 05:12:13,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:13,009 INFO L225 Difference]: With dead ends: 272 [2024-11-09 05:12:13,009 INFO L226 Difference]: Without dead ends: 270 [2024-11-09 05:12:13,010 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 05:12:13,010 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 45 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:13,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 193 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:12:13,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-09 05:12:13,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2024-11-09 05:12:13,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 191 states have (on average 1.4973821989528795) internal successors, (286), 242 states have internal predecessors, (286), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:12:13,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 336 transitions. [2024-11-09 05:12:13,027 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 336 transitions. Word has length 46 [2024-11-09 05:12:13,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:13,028 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 336 transitions. [2024-11-09 05:12:13,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-09 05:12:13,028 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 336 transitions. [2024-11-09 05:12:13,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 05:12:13,029 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:13,029 INFO L215 NwaCegarLoop]: trace histogram [4, 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 05:12:13,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 05:12:13,030 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:12:13,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:13,030 INFO L85 PathProgramCache]: Analyzing trace with hash 83357293, now seen corresponding path program 1 times [2024-11-09 05:12:13,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:13,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247469518] [2024-11-09 05:12:13,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:13,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:13,143 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 05:12:13,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:13,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247469518] [2024-11-09 05:12:13,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247469518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:12:13,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:12:13,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:12:13,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495305757] [2024-11-09 05:12:13,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:12:13,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:12:13,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:13,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:12:13,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:12:13,146 INFO L87 Difference]: Start difference. First operand 270 states and 336 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-09 05:12:14,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:14,010 INFO L93 Difference]: Finished difference Result 271 states and 336 transitions. [2024-11-09 05:12:14,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:12:14,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 47 [2024-11-09 05:12:14,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:14,013 INFO L225 Difference]: With dead ends: 271 [2024-11-09 05:12:14,013 INFO L226 Difference]: Without dead ends: 270 [2024-11-09 05:12:14,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:12:14,015 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 277 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:14,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 134 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:12:14,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-09 05:12:14,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2024-11-09 05:12:14,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 191 states have (on average 1.4921465968586387) internal successors, (285), 242 states have internal predecessors, (285), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:12:14,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 335 transitions. [2024-11-09 05:12:14,032 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 335 transitions. Word has length 47 [2024-11-09 05:12:14,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:14,033 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 335 transitions. [2024-11-09 05:12:14,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-09 05:12:14,033 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 335 transitions. [2024-11-09 05:12:14,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 05:12:14,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:14,040 INFO L215 NwaCegarLoop]: trace histogram [4, 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 05:12:14,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 05:12:14,040 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:12:14,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:14,041 INFO L85 PathProgramCache]: Analyzing trace with hash 83343391, now seen corresponding path program 1 times [2024-11-09 05:12:14,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:14,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36873502] [2024-11-09 05:12:14,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:14,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:14,193 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 05:12:14,193 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:14,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36873502] [2024-11-09 05:12:14,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36873502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:12:14,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:12:14,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:12:14,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890369927] [2024-11-09 05:12:14,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:12:14,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:12:14,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:14,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:12:14,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:12:14,196 INFO L87 Difference]: Start difference. First operand 270 states and 335 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-09 05:12:14,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:14,984 INFO L93 Difference]: Finished difference Result 273 states and 338 transitions. [2024-11-09 05:12:14,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:12:14,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 47 [2024-11-09 05:12:14,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:14,989 INFO L225 Difference]: With dead ends: 273 [2024-11-09 05:12:14,989 INFO L226 Difference]: Without dead ends: 272 [2024-11-09 05:12:14,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:12:14,990 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 277 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:14,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 134 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:12:14,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-09 05:12:15,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2024-11-09 05:12:15,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 193 states have (on average 1.4870466321243523) internal successors, (287), 244 states have internal predecessors, (287), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:12:15,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 337 transitions. [2024-11-09 05:12:15,015 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 337 transitions. Word has length 47 [2024-11-09 05:12:15,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:15,016 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 337 transitions. [2024-11-09 05:12:15,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-09 05:12:15,016 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 337 transitions. [2024-11-09 05:12:15,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-09 05:12:15,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:15,017 INFO L215 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1] [2024-11-09 05:12:15,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 05:12:15,018 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:12:15,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:15,018 INFO L85 PathProgramCache]: Analyzing trace with hash 806130950, now seen corresponding path program 1 times [2024-11-09 05:12:15,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:15,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049334970] [2024-11-09 05:12:15,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:15,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:15,109 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 05:12:15,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:15,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049334970] [2024-11-09 05:12:15,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049334970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:12:15,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:12:15,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:12:15,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137543117] [2024-11-09 05:12:15,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:12:15,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:12:15,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:15,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:12:15,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:12:15,112 INFO L87 Difference]: Start difference. First operand 272 states and 337 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 05:12:15,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:15,387 INFO L93 Difference]: Finished difference Result 329 states and 405 transitions. [2024-11-09 05:12:15,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:12:15,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 50 [2024-11-09 05:12:15,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:15,390 INFO L225 Difference]: With dead ends: 329 [2024-11-09 05:12:15,390 INFO L226 Difference]: Without dead ends: 325 [2024-11-09 05:12:15,391 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 05:12:15,391 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 43 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:15,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 133 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:12:15,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-11-09 05:12:15,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 282. [2024-11-09 05:12:15,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 203 states have (on average 1.4679802955665024) internal successors, (298), 254 states have internal predecessors, (298), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:12:15,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 348 transitions. [2024-11-09 05:12:15,413 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 348 transitions. Word has length 50 [2024-11-09 05:12:15,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:15,414 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 348 transitions. [2024-11-09 05:12:15,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 05:12:15,415 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 348 transitions. [2024-11-09 05:12:15,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-09 05:12:15,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:15,416 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-11-09 05:12:15,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 05:12:15,416 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:12:15,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:15,417 INFO L85 PathProgramCache]: Analyzing trace with hash -2009871949, now seen corresponding path program 1 times [2024-11-09 05:12:15,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:15,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520360063] [2024-11-09 05:12:15,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:15,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:15,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:12:15,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [514204034] [2024-11-09 05:12:15,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:15,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:15,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:12:15,438 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:12:15,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 05:12:15,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:15,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:12:15,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:15,734 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 05:12:15,735 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:12:16,038 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:16,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520360063] [2024-11-09 05:12:16,038 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:12:16,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514204034] [2024-11-09 05:12:16,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514204034] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:12:16,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1291511917] [2024-11-09 05:12:16,062 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-09 05:12:16,062 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:12:16,067 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:12:16,073 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:12:16,074 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:12:20,653 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:12:20,655 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:12:20,660 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:12:23,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1291511917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:12:23,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:12:23,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [3] total 22 [2024-11-09 05:12:23,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156293846] [2024-11-09 05:12:23,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:12:23,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-09 05:12:23,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:23,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-09 05:12:23,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2024-11-09 05:12:23,319 INFO L87 Difference]: Start difference. First operand 282 states and 348 transitions. Second operand has 21 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-09 05:12:26,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:26,776 INFO L93 Difference]: Finished difference Result 348 states and 403 transitions. [2024-11-09 05:12:26,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 05:12:26,777 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) Word has length 53 [2024-11-09 05:12:26,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:26,778 INFO L225 Difference]: With dead ends: 348 [2024-11-09 05:12:26,779 INFO L226 Difference]: Without dead ends: 260 [2024-11-09 05:12:26,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 82 SyntacticMatches, 12 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=304, Invalid=752, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 05:12:26,780 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 518 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 1579 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:26,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 123 Invalid, 1672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1579 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-09 05:12:26,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-09 05:12:26,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 255. [2024-11-09 05:12:26,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 179 states have (on average 1.4301675977653632) internal successors, (256), 230 states have internal predecessors, (256), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-09 05:12:26,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 300 transitions. [2024-11-09 05:12:26,805 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 300 transitions. Word has length 53 [2024-11-09 05:12:26,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:26,806 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 300 transitions. [2024-11-09 05:12:26,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-09 05:12:26,806 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 300 transitions. [2024-11-09 05:12:26,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-09 05:12:26,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:26,807 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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 05:12:26,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-09 05:12:27,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 05:12:27,008 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:12:27,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:27,008 INFO L85 PathProgramCache]: Analyzing trace with hash -622365746, now seen corresponding path program 1 times [2024-11-09 05:12:27,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:27,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059094614] [2024-11-09 05:12:27,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:27,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:12:27,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [230039091] [2024-11-09 05:12:27,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:27,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:27,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:12:27,031 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:12:27,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 05:12:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:27,094 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:12:27,096 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:27,415 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 05:12:27,415 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:12:27,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:27,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059094614] [2024-11-09 05:12:27,569 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:12:27,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230039091] [2024-11-09 05:12:27,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230039091] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:12:27,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [809380943] [2024-11-09 05:12:27,575 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-09 05:12:27,576 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:12:27,576 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:12:27,576 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:12:27,577 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:12:31,362 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:12:31,363 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:12:31,364 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:12:33,959 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12966#(and (<= |ULTIMATE.start_main_~x~0#1| 5) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~p~0#1| 1) (<= 0 (+ 5 |ULTIMATE.start_main_~a~0#1|)) (<= |ULTIMATE.start_main_~a~0#1| 5) (<= |ULTIMATE.start_main_~b~0#1| 5) (<= 1 |ULTIMATE.start_main_~b~0#1|) (= |ULTIMATE.start_main_~q~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (exists ((|v_ULTIMATE.start_main_~y~0#1_64| Int) (|v_ULTIMATE.start_main_~r~0#1_74| Int)) (and (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~r~0#1_74|)) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~y~0#1_64| |v_ULTIMATE.start_main_~r~0#1_74|)) 0) (<= |v_ULTIMATE.start_main_~y~0#1_64| 5) (<= 1 |v_ULTIMATE.start_main_~y~0#1_64|))) (= |ULTIMATE.start_main_~s~0#1| 1))' at error location [2024-11-09 05:12:33,959 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:12:33,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:12:33,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-09 05:12:33,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861049829] [2024-11-09 05:12:33,959 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:12:33,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:12:33,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:33,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:12:33,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=533, Unknown=0, NotChecked=0, Total=650 [2024-11-09 05:12:33,961 INFO L87 Difference]: Start difference. First operand 255 states and 300 transitions. Second operand has 6 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 05:12:34,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:34,670 INFO L93 Difference]: Finished difference Result 403 states and 511 transitions. [2024-11-09 05:12:34,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:12:34,671 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 62 [2024-11-09 05:12:34,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:34,673 INFO L225 Difference]: With dead ends: 403 [2024-11-09 05:12:34,673 INFO L226 Difference]: Without dead ends: 401 [2024-11-09 05:12:34,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 102 SyntacticMatches, 17 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=117, Invalid=533, Unknown=0, NotChecked=0, Total=650 [2024-11-09 05:12:34,674 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 264 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:34,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 208 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:12:34,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-11-09 05:12:34,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 325. [2024-11-09 05:12:34,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 241 states have (on average 1.4688796680497926) internal successors, (354), 292 states have internal predecessors, (354), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-09 05:12:34,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 414 transitions. [2024-11-09 05:12:34,707 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 414 transitions. Word has length 62 [2024-11-09 05:12:34,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:34,707 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 414 transitions. [2024-11-09 05:12:34,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 05:12:34,708 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 414 transitions. [2024-11-09 05:12:34,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 05:12:34,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:34,709 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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] [2024-11-09 05:12:34,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-09 05:12:34,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:34,909 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:12:34,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:34,910 INFO L85 PathProgramCache]: Analyzing trace with hash -2113468879, now seen corresponding path program 1 times [2024-11-09 05:12:34,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:34,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547454498] [2024-11-09 05:12:34,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:34,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:34,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:12:34,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [545360370] [2024-11-09 05:12:34,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:34,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:34,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:12:34,941 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:12:34,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 05:12:34,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:34,998 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:12:35,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:35,291 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 05:12:35,291 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:12:37,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:37,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547454498] [2024-11-09 05:12:37,982 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:12:37,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545360370] [2024-11-09 05:12:37,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545360370] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:12:37,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [898426617] [2024-11-09 05:12:37,985 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-09 05:12:37,985 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:12:37,985 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:12:37,986 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:12:37,986 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:12:40,891 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:12:40,895 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:12:40,897 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:12:43,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [898426617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:12:43,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:12:43,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [5] total 22 [2024-11-09 05:12:43,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851733605] [2024-11-09 05:12:43,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:12:43,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 05:12:43,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:43,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 05:12:43,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=471, Unknown=1, NotChecked=0, Total=600 [2024-11-09 05:12:43,795 INFO L87 Difference]: Start difference. First operand 325 states and 414 transitions. Second operand has 19 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-09 05:12:47,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:47,114 INFO L93 Difference]: Finished difference Result 348 states and 420 transitions. [2024-11-09 05:12:47,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 05:12:47,115 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 63 [2024-11-09 05:12:47,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:47,116 INFO L225 Difference]: With dead ends: 348 [2024-11-09 05:12:47,117 INFO L226 Difference]: Without dead ends: 311 [2024-11-09 05:12:47,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 106 SyntacticMatches, 18 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=344, Invalid=915, Unknown=1, NotChecked=0, Total=1260 [2024-11-09 05:12:47,118 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 557 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:47,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [563 Valid, 120 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 05:12:47,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-09 05:12:47,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 302. [2024-11-09 05:12:47,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 221 states have (on average 1.3981900452488687) internal successors, (309), 272 states have internal predecessors, (309), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-09 05:12:47,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 363 transitions. [2024-11-09 05:12:47,151 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 363 transitions. Word has length 63 [2024-11-09 05:12:47,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:47,152 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 363 transitions. [2024-11-09 05:12:47,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-09 05:12:47,153 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 363 transitions. [2024-11-09 05:12:47,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 05:12:47,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:47,154 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:12:47,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-09 05:12:47,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:47,358 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:12:47,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:47,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1323783293, now seen corresponding path program 1 times [2024-11-09 05:12:47,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:47,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18563234] [2024-11-09 05:12:47,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:47,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:47,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:47,500 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 05:12:47,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:47,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18563234] [2024-11-09 05:12:47,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18563234] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:12:47,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710739420] [2024-11-09 05:12:47,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:47,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:47,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:12:47,503 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:12:47,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 05:12:47,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:47,567 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:12:47,569 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:47,767 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 05:12:47,768 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:12:47,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710739420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:12:47,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:12:47,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-09 05:12:47,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253738087] [2024-11-09 05:12:47,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:12:47,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:12:47,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:47,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:12:47,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:12:47,770 INFO L87 Difference]: Start difference. First operand 302 states and 363 transitions. Second operand has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 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 05:12:48,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:48,342 INFO L93 Difference]: Finished difference Result 411 states and 545 transitions. [2024-11-09 05:12:48,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:12:48,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 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 84 [2024-11-09 05:12:48,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:48,347 INFO L225 Difference]: With dead ends: 411 [2024-11-09 05:12:48,347 INFO L226 Difference]: Without dead ends: 409 [2024-11-09 05:12:48,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:12:48,358 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 95 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:48,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 148 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:12:48,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-09 05:12:48,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 298. [2024-11-09 05:12:48,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 219 states have (on average 1.3835616438356164) internal successors, (303), 268 states have internal predecessors, (303), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-09 05:12:48,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 357 transitions. [2024-11-09 05:12:48,396 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 357 transitions. Word has length 84 [2024-11-09 05:12:48,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:48,396 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 357 transitions. [2024-11-09 05:12:48,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 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 05:12:48,396 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 357 transitions. [2024-11-09 05:12:48,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-09 05:12:48,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:48,398 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:12:48,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-09 05:12:48,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:48,599 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:12:48,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:48,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1912390776, now seen corresponding path program 1 times [2024-11-09 05:12:48,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:48,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561690507] [2024-11-09 05:12:48,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:48,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:48,755 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 05:12:48,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:48,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561690507] [2024-11-09 05:12:48,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561690507] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:12:48,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343102465] [2024-11-09 05:12:48,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:48,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:48,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:12:48,758 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:12:48,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 05:12:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:48,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:12:48,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:49,056 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 05:12:49,057 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:12:49,213 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 05:12:49,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343102465] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:12:49,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1598174007] [2024-11-09 05:12:49,215 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-09 05:12:49,215 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:12:49,216 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:12:49,216 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:12:49,216 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:12:51,369 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:12:51,370 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:12:51,372 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:12:54,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1598174007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:12:54,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:12:54,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [3, 3, 3] total 28 [2024-11-09 05:12:54,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029141413] [2024-11-09 05:12:54,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:12:54,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 05:12:54,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:54,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 05:12:54,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=662, Unknown=0, NotChecked=0, Total=812 [2024-11-09 05:12:54,862 INFO L87 Difference]: Start difference. First operand 298 states and 357 transitions. Second operand has 23 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-09 05:12:57,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:57,987 INFO L93 Difference]: Finished difference Result 302 states and 360 transitions. [2024-11-09 05:12:57,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 05:12:57,988 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) Word has length 85 [2024-11-09 05:12:57,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:57,989 INFO L225 Difference]: With dead ends: 302 [2024-11-09 05:12:57,990 INFO L226 Difference]: Without dead ends: 301 [2024-11-09 05:12:57,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 208 SyntacticMatches, 22 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=363, Invalid=1197, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 05:12:57,991 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 605 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:57,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 146 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 05:12:57,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-09 05:12:58,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 298. [2024-11-09 05:12:58,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 219 states have (on average 1.3789954337899544) internal successors, (302), 268 states have internal predecessors, (302), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-09 05:12:58,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 356 transitions. [2024-11-09 05:12:58,025 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 356 transitions. Word has length 85 [2024-11-09 05:12:58,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:58,026 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 356 transitions. [2024-11-09 05:12:58,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-09 05:12:58,026 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 356 transitions. [2024-11-09 05:12:58,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-09 05:12:58,027 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:58,028 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:12:58,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-09 05:12:58,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:58,229 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:12:58,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:58,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1343176531, now seen corresponding path program 1 times [2024-11-09 05:12:58,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:58,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082462417] [2024-11-09 05:12:58,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:58,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:58,364 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 05:12:58,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:58,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082462417] [2024-11-09 05:12:58,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082462417] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:12:58,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36194993] [2024-11-09 05:12:58,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:58,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:58,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:12:58,367 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:12:58,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-09 05:12:58,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:58,433 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:12:58,435 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:58,684 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 05:12:58,684 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:12:58,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36194993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:12:58,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:12:58,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-09 05:12:58,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105701409] [2024-11-09 05:12:58,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:12:58,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:12:58,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:58,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:12:58,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:12:58,688 INFO L87 Difference]: Start difference. First operand 298 states and 356 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 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 05:12:59,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:59,194 INFO L93 Difference]: Finished difference Result 411 states and 543 transitions. [2024-11-09 05:12:59,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:12:59,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 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 86 [2024-11-09 05:12:59,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:59,196 INFO L225 Difference]: With dead ends: 411 [2024-11-09 05:12:59,197 INFO L226 Difference]: Without dead ends: 409 [2024-11-09 05:12:59,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:12:59,198 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 89 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:59,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 165 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:12:59,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-09 05:12:59,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 296. [2024-11-09 05:12:59,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 219 states have (on average 1.365296803652968) internal successors, (299), 266 states have internal predecessors, (299), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-09 05:12:59,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 353 transitions. [2024-11-09 05:12:59,234 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 353 transitions. Word has length 86 [2024-11-09 05:12:59,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:59,234 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 353 transitions. [2024-11-09 05:12:59,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 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 05:12:59,235 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 353 transitions. [2024-11-09 05:12:59,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 05:12:59,236 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:59,236 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:12:59,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-09 05:12:59,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-09 05:12:59,437 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:12:59,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:59,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1311200618, now seen corresponding path program 1 times [2024-11-09 05:12:59,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:59,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193268830] [2024-11-09 05:12:59,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:59,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:59,556 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 05:12:59,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:59,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193268830] [2024-11-09 05:12:59,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193268830] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:12:59,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970249244] [2024-11-09 05:12:59,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:59,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:59,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:12:59,560 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:12:59,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 05:12:59,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:59,621 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:12:59,623 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:59,859 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 05:12:59,859 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:13:00,034 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 05:13:00,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970249244] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:13:00,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1137202136] [2024-11-09 05:13:00,036 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-09 05:13:00,036 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:13:00,038 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:13:00,038 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:13:00,039 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:13:02,682 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:13:02,687 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:13:02,691 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:13:06,064 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '18680#(and (<= |ULTIMATE.start_main_~x~0#1| 5) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~y~0#1| (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 5) (not (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|)) (= (+ |ULTIMATE.start_main_~q~0#1| 1) 0) (<= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ 2 |ULTIMATE.start_main_~a~0#1|)))' at error location [2024-11-09 05:13:06,065 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:13:06,065 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:13:06,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-11-09 05:13:06,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469253664] [2024-11-09 05:13:06,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:13:06,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 05:13:06,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:13:06,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 05:13:06,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=697, Unknown=0, NotChecked=0, Total=812 [2024-11-09 05:13:06,067 INFO L87 Difference]: Start difference. First operand 296 states and 353 transitions. Second operand has 8 states, 7 states have (on average 24.142857142857142) internal successors, (169), 8 states have internal predecessors, (169), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-09 05:13:07,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:13:07,088 INFO L93 Difference]: Finished difference Result 667 states and 892 transitions. [2024-11-09 05:13:07,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:13:07,089 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 24.142857142857142) internal successors, (169), 8 states have internal predecessors, (169), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) Word has length 87 [2024-11-09 05:13:07,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:13:07,092 INFO L225 Difference]: With dead ends: 667 [2024-11-09 05:13:07,093 INFO L226 Difference]: Without dead ends: 665 [2024-11-09 05:13:07,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 207 SyntacticMatches, 28 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=123, Invalid=747, Unknown=0, NotChecked=0, Total=870 [2024-11-09 05:13:07,094 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 220 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:13:07,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 345 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 05:13:07,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-09 05:13:07,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 490. [2024-11-09 05:13:07,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 395 states have (on average 1.4455696202531645) internal successors, (571), 442 states have internal predecessors, (571), 45 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-09 05:13:07,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 661 transitions. [2024-11-09 05:13:07,150 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 661 transitions. Word has length 87 [2024-11-09 05:13:07,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:13:07,150 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 661 transitions. [2024-11-09 05:13:07,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 24.142857142857142) internal successors, (169), 8 states have internal predecessors, (169), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-09 05:13:07,151 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 661 transitions. [2024-11-09 05:13:07,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-09 05:13:07,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:13:07,152 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 05:13:07,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-09 05:13:07,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-09 05:13:07,353 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:13:07,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:13:07,354 INFO L85 PathProgramCache]: Analyzing trace with hash 463116716, now seen corresponding path program 1 times [2024-11-09 05:13:07,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:13:07,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526884350] [2024-11-09 05:13:07,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:13:07,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:13:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:13:07,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [789313409] [2024-11-09 05:13:07,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:13:07,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:13:07,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:13:07,382 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:13:07,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-09 05:13:07,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:13:07,444 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:13:07,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:13:07,874 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 05:13:07,874 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:13:07,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:13:07,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526884350] [2024-11-09 05:13:07,961 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:13:07,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789313409] [2024-11-09 05:13:07,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789313409] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:13:07,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [155715549] [2024-11-09 05:13:07,963 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-09 05:13:07,964 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:13:07,964 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:13:07,964 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:13:07,964 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:13:21,163 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:13:21,164 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:13:21,165 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:13:33,196 WARN L286 SmtUtils]: Spent 8.46s on a formula simplification. DAG size of input: 52 DAG size of output: 45 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:13:46,110 WARN L286 SmtUtils]: Spent 10.56s on a formula simplification. DAG size of input: 54 DAG size of output: 47 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:13:58,842 WARN L286 SmtUtils]: Spent 12.59s on a formula simplification. DAG size of input: 56 DAG size of output: 49 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:14:04,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [155715549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:14:04,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:14:04,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [5] total 38 [2024-11-09 05:14:04,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694205612] [2024-11-09 05:14:04,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:14:04,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-09 05:14:04,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:14:04,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-09 05:14:04,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=1380, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 05:14:04,780 INFO L87 Difference]: Start difference. First operand 490 states and 661 transitions. Second operand has 35 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 26 states have internal predecessors, (40), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 05:14:51,193 WARN L286 SmtUtils]: Spent 5.42s on a formula simplification. DAG size of input: 119 DAG size of output: 68 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:15:01,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 05:15:55,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 05:15:59,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:15:59,353 INFO L93 Difference]: Finished difference Result 629 states and 905 transitions. [2024-11-09 05:15:59,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2024-11-09 05:15:59,353 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 26 states have internal predecessors, (40), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 89 [2024-11-09 05:15:59,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:15:59,358 INFO L225 Difference]: With dead ends: 629 [2024-11-09 05:15:59,358 INFO L226 Difference]: Without dead ends: 508 [2024-11-09 05:15:59,362 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 133 SyntacticMatches, 18 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3260 ImplicationChecksByTransitivity, 101.1s TimeCoverageRelationStatistics Valid=2792, Invalid=9418, Unknown=0, NotChecked=0, Total=12210 [2024-11-09 05:15:59,363 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 1530 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 2674 mSolverCounterSat, 362 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1530 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 3038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 2674 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:15:59,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1530 Valid, 114 Invalid, 3038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 2674 Invalid, 2 Unknown, 0 Unchecked, 56.8s Time] [2024-11-09 05:15:59,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-11-09 05:15:59,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 412. [2024-11-09 05:15:59,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 360 states have (on average 1.1388888888888888) internal successors, (410), 367 states have internal predecessors, (410), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-09 05:15:59,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 494 transitions. [2024-11-09 05:15:59,432 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 494 transitions. Word has length 89 [2024-11-09 05:15:59,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:15:59,433 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 494 transitions. [2024-11-09 05:15:59,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 26 states have internal predecessors, (40), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 05:15:59,433 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 494 transitions. [2024-11-09 05:15:59,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 05:15:59,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:15:59,435 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 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, 1, 1, 1, 1] [2024-11-09 05:15:59,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-09 05:15:59,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-09 05:15:59,636 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:15:59,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:15:59,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1471716358, now seen corresponding path program 1 times [2024-11-09 05:15:59,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:15:59,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629079447] [2024-11-09 05:15:59,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:15:59,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:15:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:15:59,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [595729625] [2024-11-09 05:15:59,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:15:59,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:15:59,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:15:59,668 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:15:59,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-09 05:15:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:15:59,744 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:15:59,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:00,274 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 05:16:00,274 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:16:00,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:00,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629079447] [2024-11-09 05:16:00,750 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:16:00,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595729625] [2024-11-09 05:16:00,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595729625] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:16:00,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1101137780] [2024-11-09 05:16:00,753 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-09 05:16:00,753 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:16:00,754 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:16:00,754 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:16:00,754 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:16:13,413 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:16:13,414 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:16:13,415 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:16:22,016 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21966#(and (<= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 5) (<= 1 |#StackHeapBarrier|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 0 (+ |ULTIMATE.start_main_~b~0#1| 4)) (<= |ULTIMATE.start_main_~y~0#1| 5) (exists ((|v_ULTIMATE.start_main_~s~0#1_112| Int) (|v_ULTIMATE.start_main_~p~0#1_100| Int)) (and (<= |v_ULTIMATE.start_main_~s~0#1_112| 9223372036854775808) (<= 1 |v_ULTIMATE.start_main_~p~0#1_100|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~s~0#1_112| |v_ULTIMATE.start_main_~p~0#1_100|)) (<= |v_ULTIMATE.start_main_~p~0#1_100| 9223372036854775807))) (<= |ULTIMATE.start_main_~b~0#1| 5) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)))' at error location [2024-11-09 05:16:22,016 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:16:22,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:16:22,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-09 05:16:22,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849706015] [2024-11-09 05:16:22,016 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:16:22,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:16:22,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:22,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:16:22,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=1418, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 05:16:22,019 INFO L87 Difference]: Start difference. First operand 412 states and 494 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 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 05:16:22,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:22,388 INFO L93 Difference]: Finished difference Result 490 states and 582 transitions. [2024-11-09 05:16:22,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:16:22,389 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 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 90 [2024-11-09 05:16:22,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:22,390 INFO L225 Difference]: With dead ends: 490 [2024-11-09 05:16:22,391 INFO L226 Difference]: Without dead ends: 489 [2024-11-09 05:16:22,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 135 SyntacticMatches, 17 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 896 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=222, Invalid=1418, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 05:16:22,392 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 65 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:22,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 103 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:16:22,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2024-11-09 05:16:22,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 451. [2024-11-09 05:16:22,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 396 states have (on average 1.128787878787879) internal successors, (447), 403 states have internal predecessors, (447), 45 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-09 05:16:22,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 537 transitions. [2024-11-09 05:16:22,491 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 537 transitions. Word has length 90 [2024-11-09 05:16:22,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:22,491 INFO L471 AbstractCegarLoop]: Abstraction has 451 states and 537 transitions. [2024-11-09 05:16:22,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 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 05:16:22,492 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 537 transitions. [2024-11-09 05:16:22,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 05:16:22,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:22,493 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 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, 1, 1, 1, 1] [2024-11-09 05:16:22,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-09 05:16:22,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-09 05:16:22,695 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:16:22,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:22,696 INFO L85 PathProgramCache]: Analyzing trace with hash -749900538, now seen corresponding path program 2 times [2024-11-09 05:16:22,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:22,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615724592] [2024-11-09 05:16:22,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:22,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:16:22,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1254218774] [2024-11-09 05:16:22,750 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:16:22,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:22,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:16:22,752 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:16:22,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-09 05:16:22,828 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-09 05:16:22,828 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:16:22,830 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:16:22,832 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:23,033 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 05:16:23,033 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:16:23,486 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:23,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615724592] [2024-11-09 05:16:23,486 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:16:23,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254218774] [2024-11-09 05:16:23,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254218774] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:16:23,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [364601516] [2024-11-09 05:16:23,488 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-09 05:16:23,489 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:16:23,489 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:16:23,489 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:16:23,489 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:16:35,791 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:16:35,792 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:16:35,793 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:16:44,289 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '23381#(and (<= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 5) (<= 1 |#StackHeapBarrier|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 5) (<= |ULTIMATE.start_main_~b~0#1| 5) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (exists ((|v_ULTIMATE.start_main_~s~0#1_128| Int) (|v_ULTIMATE.start_main_~p~0#1_106| Int)) (and (<= |v_ULTIMATE.start_main_~p~0#1_106| 9223372036854775807) (<= |v_ULTIMATE.start_main_~s~0#1_128| 9223372036854775808) (<= 1 |v_ULTIMATE.start_main_~s~0#1_128|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~s~0#1_128| |v_ULTIMATE.start_main_~p~0#1_106|)))))' at error location [2024-11-09 05:16:44,289 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:16:44,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:16:44,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-09 05:16:44,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32197396] [2024-11-09 05:16:44,290 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:16:44,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:16:44,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:44,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:16:44,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1347, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 05:16:44,291 INFO L87 Difference]: Start difference. First operand 451 states and 537 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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 05:16:44,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:44,631 INFO L93 Difference]: Finished difference Result 571 states and 680 transitions. [2024-11-09 05:16:44,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:16:44,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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 90 [2024-11-09 05:16:44,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:44,634 INFO L225 Difference]: With dead ends: 571 [2024-11-09 05:16:44,635 INFO L226 Difference]: Without dead ends: 570 [2024-11-09 05:16:44,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 136 SyntacticMatches, 17 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 852 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=220, Invalid=1420, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 05:16:44,637 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 69 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:44,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 118 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:16:44,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2024-11-09 05:16:44,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 553. [2024-11-09 05:16:44,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 489 states have (on average 1.1349693251533743) internal successors, (555), 496 states have internal predecessors, (555), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-09 05:16:44,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 663 transitions. [2024-11-09 05:16:44,732 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 663 transitions. Word has length 90 [2024-11-09 05:16:44,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:44,732 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 663 transitions. [2024-11-09 05:16:44,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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 05:16:44,733 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 663 transitions. [2024-11-09 05:16:44,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-09 05:16:44,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:44,734 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 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 05:16:44,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-09 05:16:44,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-09 05:16:44,938 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:16:44,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:44,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1275181320, now seen corresponding path program 1 times [2024-11-09 05:16:44,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:44,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305066752] [2024-11-09 05:16:44,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:44,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:44,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:16:44,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [634245021] [2024-11-09 05:16:44,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:44,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:44,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:16:44,969 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:16:44,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-09 05:16:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:45,043 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:16:45,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:45,514 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 05:16:45,514 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:16:45,822 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:45,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305066752] [2024-11-09 05:16:45,822 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:16:45,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634245021] [2024-11-09 05:16:45,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634245021] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:16:45,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [897514716] [2024-11-09 05:16:45,824 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-09 05:16:45,825 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:16:45,825 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:16:45,825 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:16:45,826 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:16:56,912 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:16:56,913 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:16:56,913 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:17:05,369 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '25014#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 5) (<= 1 |ULTIMATE.start_main_~p~0#1|) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 0 (+ |ULTIMATE.start_main_~b~0#1| 4)) (<= |ULTIMATE.start_main_~y~0#1| 5) (<= |ULTIMATE.start_main_~b~0#1| 5) (<= 1 |ULTIMATE.start_main_~a~0#1|) (exists ((|v_ULTIMATE.start_main_~r~0#1_112| Int) (|v_ULTIMATE.start_main_~q~0#1_141| Int)) (and (<= |v_ULTIMATE.start_main_~q~0#1_141| 0) (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~r~0#1_112|)) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_141| 9223372036854775808)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_141| |v_ULTIMATE.start_main_~r~0#1_112|)))) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|) 9223372036854775807))' at error location [2024-11-09 05:17:05,369 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:17:05,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:17:05,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-09 05:17:05,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042107262] [2024-11-09 05:17:05,370 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:17:05,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:17:05,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:17:05,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:17:05,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1362, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 05:17:05,372 INFO L87 Difference]: Start difference. First operand 553 states and 663 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 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 05:17:05,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:17:05,791 INFO L93 Difference]: Finished difference Result 590 states and 705 transitions. [2024-11-09 05:17:05,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:17:05,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 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 92 [2024-11-09 05:17:05,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:17:05,794 INFO L225 Difference]: With dead ends: 590 [2024-11-09 05:17:05,795 INFO L226 Difference]: Without dead ends: 589 [2024-11-09 05:17:05,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 141 SyntacticMatches, 18 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 769 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=198, Invalid=1362, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 05:17:05,797 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 36 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:17:05,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 133 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:17:05,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2024-11-09 05:17:05,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 555. [2024-11-09 05:17:05,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 491 states have (on average 1.1344195519348268) internal successors, (557), 498 states have internal predecessors, (557), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-09 05:17:05,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 665 transitions. [2024-11-09 05:17:05,876 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 665 transitions. Word has length 92 [2024-11-09 05:17:05,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:17:05,876 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 665 transitions. [2024-11-09 05:17:05,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 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 05:17:05,877 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 665 transitions. [2024-11-09 05:17:05,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-09 05:17:05,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:17:05,878 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 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 05:17:05,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-09 05:17:06,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-09 05:17:06,082 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:17:06,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:17:06,083 INFO L85 PathProgramCache]: Analyzing trace with hash 900090376, now seen corresponding path program 2 times [2024-11-09 05:17:06,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:17:06,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832303462] [2024-11-09 05:17:06,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:17:06,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:17:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:17:06,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1016924825] [2024-11-09 05:17:06,112 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:17:06,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:17:06,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:17:06,115 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:17:06,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-09 05:17:06,201 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-09 05:17:06,202 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:17:06,203 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 05:17:06,206 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:17:06,724 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 05:17:06,724 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:17:09,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:17:09,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832303462] [2024-11-09 05:17:09,136 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:17:09,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016924825] [2024-11-09 05:17:09,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016924825] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:17:09,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1072585772] [2024-11-09 05:17:09,139 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-09 05:17:09,139 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:17:09,139 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:17:09,140 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:17:09,140 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:17:24,006 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:17:24,007 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:17:24,008 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:17:35,559 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '26669#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 5) (<= 1 |ULTIMATE.start_main_~p~0#1|) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~q~0#1_157| Int) (|v_ULTIMATE.start_main_~r~0#1_118| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_157| 9223372036854775808)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_157| |v_ULTIMATE.start_main_~r~0#1_118|)) (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~r~0#1_118|)) (<= |v_ULTIMATE.start_main_~q~0#1_157| 0))) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 0 (+ |ULTIMATE.start_main_~b~0#1| 4)) (<= |ULTIMATE.start_main_~y~0#1| 5) (<= |ULTIMATE.start_main_~b~0#1| 5) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|) 9223372036854775807))' at error location [2024-11-09 05:17:35,559 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:17:35,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:17:35,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-09 05:17:35,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892389916] [2024-11-09 05:17:35,560 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:17:35,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:17:35,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:17:35,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:17:35,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1361, Unknown=1, NotChecked=0, Total=1560 [2024-11-09 05:17:35,562 INFO L87 Difference]: Start difference. First operand 555 states and 665 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 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 05:17:35,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:17:35,939 INFO L93 Difference]: Finished difference Result 563 states and 672 transitions. [2024-11-09 05:17:35,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:17:35,939 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 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 92 [2024-11-09 05:17:35,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:17:35,942 INFO L225 Difference]: With dead ends: 563 [2024-11-09 05:17:35,942 INFO L226 Difference]: Without dead ends: 562 [2024-11-09 05:17:35,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 141 SyntacticMatches, 18 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=198, Invalid=1361, Unknown=1, NotChecked=0, Total=1560 [2024-11-09 05:17:35,944 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 36 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:17:35,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 131 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:17:35,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-11-09 05:17:36,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 555. [2024-11-09 05:17:36,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 491 states have (on average 1.1323828920570265) internal successors, (556), 498 states have internal predecessors, (556), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-09 05:17:36,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 664 transitions. [2024-11-09 05:17:36,029 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 664 transitions. Word has length 92 [2024-11-09 05:17:36,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:17:36,030 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 664 transitions. [2024-11-09 05:17:36,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 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 05:17:36,030 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 664 transitions. [2024-11-09 05:17:36,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-09 05:17:36,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:17:36,032 INFO L215 NwaCegarLoop]: trace histogram [7, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:17:36,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-09 05:17:36,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-09 05:17:36,232 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:17:36,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:17:36,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1046240501, now seen corresponding path program 2 times [2024-11-09 05:17:36,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:17:36,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145146395] [2024-11-09 05:17:36,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:17:36,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:17:36,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:17:36,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [750827977] [2024-11-09 05:17:36,257 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:17:36,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:17:36,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:17:36,260 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:17:36,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-09 05:17:36,339 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-09 05:17:36,339 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:17:36,341 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 05:17:36,343 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:17:37,188 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 2 proven. 50 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-09 05:17:37,188 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:17:39,377 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:17:39,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145146395] [2024-11-09 05:17:39,378 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:17:39,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750827977] [2024-11-09 05:17:39,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750827977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:17:39,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1184699716] [2024-11-09 05:17:39,379 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-09 05:17:39,379 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:17:39,380 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:17:39,380 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:17:39,380 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:17:41,758 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:17:41,759 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:17:41,760 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:17:48,481 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '28336#(and (<= |ULTIMATE.start_main_~x~0#1| 5) (exists ((|v_ULTIMATE.start_main_~r~0#1_126| Int) (|v_ULTIMATE.start_main_~y~0#1_66| Int)) (and (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~r~0#1_126|)) (<= (+ (* |v_ULTIMATE.start_main_~y~0#1_66| |v_ULTIMATE.start_main_~r~0#1_126|) 9223372036854775809) 0) (<= 1 |v_ULTIMATE.start_main_~y~0#1_66|) (<= |v_ULTIMATE.start_main_~y~0#1_66| 5))) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~p~0#1| 1) (<= |ULTIMATE.start_main_~a~0#1| 5) (<= 0 (+ 3 |ULTIMATE.start_main_~a~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 5) (<= 1 |ULTIMATE.start_main_~b~0#1|) (= |ULTIMATE.start_main_~q~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~s~0#1| 1))' at error location [2024-11-09 05:17:48,481 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:17:48,481 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:17:48,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-09 05:17:48,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277850565] [2024-11-09 05:17:48,481 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:17:48,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:17:48,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:17:48,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:17:48,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=783, Unknown=1, NotChecked=0, Total=930 [2024-11-09 05:17:48,483 INFO L87 Difference]: Start difference. First operand 555 states and 664 transitions. Second operand has 10 states, 8 states have (on average 8.5) internal successors, (68), 9 states have internal predecessors, (68), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-09 05:17:49,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:17:49,355 INFO L93 Difference]: Finished difference Result 601 states and 717 transitions. [2024-11-09 05:17:49,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 05:17:49,356 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 8.5) internal successors, (68), 9 states have internal predecessors, (68), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 98 [2024-11-09 05:17:49,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:17:49,358 INFO L225 Difference]: With dead ends: 601 [2024-11-09 05:17:49,358 INFO L226 Difference]: Without dead ends: 600 [2024-11-09 05:17:49,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 155 SyntacticMatches, 31 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 776 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=186, Invalid=1073, Unknown=1, NotChecked=0, Total=1260 [2024-11-09 05:17:49,359 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 213 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:17:49,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 234 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 05:17:49,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-11-09 05:17:49,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 555. [2024-11-09 05:17:49,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 491 states have (on average 1.1303462321792261) internal successors, (555), 498 states have internal predecessors, (555), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-09 05:17:49,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 663 transitions. [2024-11-09 05:17:49,489 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 663 transitions. Word has length 98 [2024-11-09 05:17:49,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:17:49,490 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 663 transitions. [2024-11-09 05:17:49,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 8.5) internal successors, (68), 9 states have internal predecessors, (68), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-09 05:17:49,491 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 663 transitions. [2024-11-09 05:17:49,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-09 05:17:49,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:17:49,493 INFO L215 NwaCegarLoop]: trace histogram [7, 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, 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 05:17:49,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-09 05:17:49,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:17:49,697 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:17:49,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:17:49,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1170285862, now seen corresponding path program 1 times [2024-11-09 05:17:49,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:17:49,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041070855] [2024-11-09 05:17:49,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:17:49,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:17:49,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:17:49,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1903279607] [2024-11-09 05:17:49,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:17:49,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:17:49,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:17:49,736 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:17:49,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-09 05:17:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:17:49,831 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 05:17:49,833 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:17:50,699 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 1 proven. 50 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-09 05:17:50,699 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:17:51,692 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:17:51,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041070855] [2024-11-09 05:17:51,693 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:17:51,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903279607] [2024-11-09 05:17:51,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903279607] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:17:51,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1771284294] [2024-11-09 05:17:51,695 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-09 05:17:51,695 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:17:51,695 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:17:51,696 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:17:51,696 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:18:04,254 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:18:04,255 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:18:04,256 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:18:16,985 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '30059#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= |ULTIMATE.start_main_~q~0#1| 0) (<= 1 |#StackHeapBarrier|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 5) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775808) (exists ((|v_ULTIMATE.start_main_~x~0#1_64| Int) (|v_ULTIMATE.start_main_~p~0#1_128| Int)) (and (<= |v_ULTIMATE.start_main_~x~0#1_64| 5) (<= |v_ULTIMATE.start_main_~p~0#1_128| 9223372036854775807) (<= 1 |v_ULTIMATE.start_main_~x~0#1_64|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~x~0#1_64| |v_ULTIMATE.start_main_~p~0#1_128|)))) (<= |ULTIMATE.start_main_~b~0#1| 5) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 0) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)))' at error location [2024-11-09 05:18:16,985 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:18:16,986 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:18:16,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 05:18:16,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007466688] [2024-11-09 05:18:16,986 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:18:16,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:18:16,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:18:16,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:18:16,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=1901, Unknown=0, NotChecked=0, Total=2162 [2024-11-09 05:18:16,988 INFO L87 Difference]: Start difference. First operand 555 states and 663 transitions. Second operand has 11 states, 9 states have (on average 7.888888888888889) internal successors, (71), 10 states have internal predecessors, (71), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-09 05:18:18,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:18:18,002 INFO L93 Difference]: Finished difference Result 657 states and 787 transitions. [2024-11-09 05:18:18,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:18:18,002 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.888888888888889) internal successors, (71), 10 states have internal predecessors, (71), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 101 [2024-11-09 05:18:18,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:18:18,004 INFO L225 Difference]: With dead ends: 657 [2024-11-09 05:18:18,004 INFO L226 Difference]: Without dead ends: 656 [2024-11-09 05:18:18,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 159 SyntacticMatches, 20 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1311 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=316, Invalid=2654, Unknown=0, NotChecked=0, Total=2970 [2024-11-09 05:18:18,006 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 116 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:18:18,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 287 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:18:18,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2024-11-09 05:18:18,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 640. [2024-11-09 05:18:18,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 567 states have (on average 1.1305114638447973) internal successors, (641), 574 states have internal predecessors, (641), 63 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-09 05:18:18,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 767 transitions. [2024-11-09 05:18:18,139 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 767 transitions. Word has length 101 [2024-11-09 05:18:18,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:18:18,139 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 767 transitions. [2024-11-09 05:18:18,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.888888888888889) internal successors, (71), 10 states have internal predecessors, (71), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-09 05:18:18,139 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 767 transitions. [2024-11-09 05:18:18,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-09 05:18:18,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:18:18,140 INFO L215 NwaCegarLoop]: trace histogram [7, 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, 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 05:18:18,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-09 05:18:18,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:18:18,345 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:18:18,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:18:18,346 INFO L85 PathProgramCache]: Analyzing trace with hash 36530650, now seen corresponding path program 2 times [2024-11-09 05:18:18,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:18:18,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100712896] [2024-11-09 05:18:18,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:18,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:18:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:18:18,558 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-09 05:18:18,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:18:18,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100712896] [2024-11-09 05:18:18,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100712896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:18:18,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:18:18,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:18:18,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99278562] [2024-11-09 05:18:18,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:18:18,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:18:18,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:18:18,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:18:18,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:18:18,561 INFO L87 Difference]: Start difference. First operand 640 states and 767 transitions. Second operand has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 05:18:19,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:18:19,204 INFO L93 Difference]: Finished difference Result 643 states and 767 transitions. [2024-11-09 05:18:19,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:18:19,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2024-11-09 05:18:19,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:18:19,208 INFO L225 Difference]: With dead ends: 643 [2024-11-09 05:18:19,208 INFO L226 Difference]: Without dead ends: 642 [2024-11-09 05:18:19,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:18:19,209 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 7 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:18:19,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 79 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:18:19,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-11-09 05:18:19,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 562. [2024-11-09 05:18:19,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 497 states have (on average 1.1167002012072436) internal successors, (555), 504 states have internal predecessors, (555), 55 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-09 05:18:19,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 665 transitions. [2024-11-09 05:18:19,332 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 665 transitions. Word has length 101 [2024-11-09 05:18:19,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:18:19,333 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 665 transitions. [2024-11-09 05:18:19,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 05:18:19,333 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 665 transitions. [2024-11-09 05:18:19,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-09 05:18:19,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:18:19,334 INFO L215 NwaCegarLoop]: trace histogram [8, 4, 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, 1, 1, 1, 1, 1] [2024-11-09 05:18:19,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-09 05:18:19,335 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:18:19,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:18:19,335 INFO L85 PathProgramCache]: Analyzing trace with hash -522923422, now seen corresponding path program 1 times [2024-11-09 05:18:19,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:18:19,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405919869] [2024-11-09 05:18:19,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:19,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:18:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:18:19,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1107102865] [2024-11-09 05:18:19,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:19,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:18:19,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:18:19,367 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:18:19,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-09 05:18:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:18:19,447 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:18:19,450 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:18:20,370 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-09 05:18:20,370 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:18:22,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:18:22,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405919869] [2024-11-09 05:18:22,548 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:18:22,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107102865] [2024-11-09 05:18:22,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107102865] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:18:22,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1278802843] [2024-11-09 05:18:22,550 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-09 05:18:22,551 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:18:22,551 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:18:22,551 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:18:22,551 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:18:35,494 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:18:35,496 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:18:35,497 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:18:48,864 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '33369#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= 1 |ULTIMATE.start_main_~p~0#1|) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 5) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775808) (<= |ULTIMATE.start_main_~b~0#1| 5) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 0) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (exists ((|v_ULTIMATE.start_main_~q~0#1_187| Int) (|v_ULTIMATE.start_main_~x~0#1_65| Int)) (and (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~x~0#1_65| |v_ULTIMATE.start_main_~q~0#1_187|)) 0) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_187| 9223372036854775808)) (<= |v_ULTIMATE.start_main_~x~0#1_65| 5) (= (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) (* |v_ULTIMATE.start_main_~x~0#1_65| |ULTIMATE.start_main_~p~0#1|)) |ULTIMATE.start_main_~a~0#1|) (<= (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) (* |v_ULTIMATE.start_main_~x~0#1_65| |ULTIMATE.start_main_~p~0#1|)) 9223372036854775807))) (<= |ULTIMATE.start_main_~p~0#1| 9223372036854775807))' at error location [2024-11-09 05:18:48,865 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:18:48,865 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:18:48,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-09 05:18:48,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600647868] [2024-11-09 05:18:48,865 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:18:48,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:18:48,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:18:48,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:18:48,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=1807, Unknown=1, NotChecked=0, Total=2070 [2024-11-09 05:18:48,868 INFO L87 Difference]: Start difference. First operand 562 states and 665 transitions. Second operand has 10 states, 8 states have (on average 9.25) internal successors, (74), 10 states have internal predecessors, (74), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-09 05:18:49,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:18:49,493 INFO L93 Difference]: Finished difference Result 643 states and 762 transitions. [2024-11-09 05:18:49,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 05:18:49,493 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 9.25) internal successors, (74), 10 states have internal predecessors, (74), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 107 [2024-11-09 05:18:49,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:18:49,496 INFO L225 Difference]: With dead ends: 643 [2024-11-09 05:18:49,496 INFO L226 Difference]: Without dead ends: 642 [2024-11-09 05:18:49,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 178 SyntacticMatches, 20 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1049 ImplicationChecksByTransitivity, 15.5s TimeCoverageRelationStatistics Valid=273, Invalid=1888, Unknown=1, NotChecked=0, Total=2162 [2024-11-09 05:18:49,498 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 72 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:18:49,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 292 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:18:49,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-11-09 05:18:49,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 562. [2024-11-09 05:18:49,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 497 states have (on average 1.1146881287726358) internal successors, (554), 504 states have internal predecessors, (554), 55 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-09 05:18:49,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 664 transitions. [2024-11-09 05:18:49,627 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 664 transitions. Word has length 107 [2024-11-09 05:18:49,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:18:49,627 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 664 transitions. [2024-11-09 05:18:49,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 9.25) internal successors, (74), 10 states have internal predecessors, (74), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-09 05:18:49,628 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 664 transitions. [2024-11-09 05:18:49,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-09 05:18:49,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:18:49,629 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 05:18:49,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-09 05:18:49,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-09 05:18:49,830 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:18:49,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:18:49,830 INFO L85 PathProgramCache]: Analyzing trace with hash -515643519, now seen corresponding path program 1 times [2024-11-09 05:18:49,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:18:49,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939666107] [2024-11-09 05:18:49,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:49,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:18:49,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:18:50,007 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-09 05:18:50,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:18:50,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939666107] [2024-11-09 05:18:50,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939666107] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:18:50,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206941102] [2024-11-09 05:18:50,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:50,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:18:50,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:18:50,011 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:18:50,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-09 05:18:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:18:50,105 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:18:50,108 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:18:50,495 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-09 05:18:50,495 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:18:50,744 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-09 05:18:50,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206941102] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:18:50,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1182494457] [2024-11-09 05:18:50,747 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-09 05:18:50,747 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:18:50,747 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:18:50,747 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:18:50,747 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:19:03,555 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:19:03,556 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:19:03,557 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:19:11,600 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '35502#(exists ((|v_ULTIMATE.start_main_~p~0#1_141| Int) (|v_ULTIMATE.start_main_~q~0#1_204| Int)) (and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= 0 |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 5) (<= 1 |#StackHeapBarrier|) (<= (+ |v_ULTIMATE.start_main_~q~0#1_204| 9223372036854775808) |v_ULTIMATE.start_main_~p~0#1_141|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 5) (<= |ULTIMATE.start_main_~a~0#1| 5) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 0) (<= |ULTIMATE.start_main_~b~0#1| 4) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 1 |v_ULTIMATE.start_main_~p~0#1_141|) (<= |v_ULTIMATE.start_main_~q~0#1_204| 0)))' at error location [2024-11-09 05:19:11,600 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:19:11,600 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:19:11,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-09 05:19:11,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206535959] [2024-11-09 05:19:11,600 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:19:11,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:19:11,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:11,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:19:11,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=1657, Unknown=0, NotChecked=0, Total=1892 [2024-11-09 05:19:11,602 INFO L87 Difference]: Start difference. First operand 562 states and 664 transitions. Second operand has 11 states, 10 states have (on average 24.4) internal successors, (244), 11 states have internal predecessors, (244), 10 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-11-09 05:19:12,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:12,131 INFO L93 Difference]: Finished difference Result 1224 states and 1466 transitions. [2024-11-09 05:19:12,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 05:19:12,132 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 24.4) internal successors, (244), 11 states have internal predecessors, (244), 10 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) Word has length 121 [2024-11-09 05:19:12,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:12,134 INFO L225 Difference]: With dead ends: 1224 [2024-11-09 05:19:12,134 INFO L226 Difference]: Without dead ends: 1223 [2024-11-09 05:19:12,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 299 SyntacticMatches, 24 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1526 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=269, Invalid=1893, Unknown=0, NotChecked=0, Total=2162 [2024-11-09 05:19:12,135 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 95 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:12,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 322 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:19:12,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2024-11-09 05:19:12,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 1169. [2024-11-09 05:19:12,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1169 states, 1046 states have (on average 1.1367112810707456) internal successors, (1189), 1053 states have internal predecessors, (1189), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-09 05:19:12,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1415 transitions. [2024-11-09 05:19:12,322 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1415 transitions. Word has length 121 [2024-11-09 05:19:12,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:12,323 INFO L471 AbstractCegarLoop]: Abstraction has 1169 states and 1415 transitions. [2024-11-09 05:19:12,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 24.4) internal successors, (244), 11 states have internal predecessors, (244), 10 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-11-09 05:19:12,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1415 transitions. [2024-11-09 05:19:12,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-09 05:19:12,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:12,325 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 05:19:12,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-09 05:19:12,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-09 05:19:12,525 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:19:12,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:12,526 INFO L85 PathProgramCache]: Analyzing trace with hash 701900063, now seen corresponding path program 3 times [2024-11-09 05:19:12,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:12,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137008438] [2024-11-09 05:19:12,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:12,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:12,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:19:12,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [967989236] [2024-11-09 05:19:12,580 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:19:12,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:19:12,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:19:12,588 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:19:12,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-09 05:19:12,706 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:19:12,706 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:19:12,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 05:19:12,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:19:13,352 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-09 05:19:13,353 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:19:13,711 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:13,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137008438] [2024-11-09 05:19:13,712 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:19:13,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967989236] [2024-11-09 05:19:13,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967989236] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:19:13,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [253763176] [2024-11-09 05:19:13,713 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-09 05:19:13,713 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:19:13,714 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:19:13,714 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:19:13,714 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:19:24,572 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:19:24,572 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:19:24,573 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:19:33,664 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '38662#(and (<= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 5) (<= 1 |#StackHeapBarrier|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 5) (exists ((|v_ULTIMATE.start_main_~s~0#1_214| Int) (|v_ULTIMATE.start_main_~p~0#1_148| Int)) (and (<= |v_ULTIMATE.start_main_~p~0#1_148| 9223372036854775807) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~s~0#1_214| |v_ULTIMATE.start_main_~p~0#1_148|)) (<= 1 |v_ULTIMATE.start_main_~s~0#1_214|) (<= |v_ULTIMATE.start_main_~s~0#1_214| 9223372036854775808))) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)))' at error location [2024-11-09 05:19:33,665 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:19:33,665 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:19:33,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-09 05:19:33,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496437508] [2024-11-09 05:19:33,665 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:19:33,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:19:33,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:33,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:19:33,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=1481, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 05:19:33,667 INFO L87 Difference]: Start difference. First operand 1169 states and 1415 transitions. Second operand has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 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 05:19:34,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:34,107 INFO L93 Difference]: Finished difference Result 1211 states and 1462 transitions. [2024-11-09 05:19:34,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:19:34,108 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 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 126 [2024-11-09 05:19:34,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:34,112 INFO L225 Difference]: With dead ends: 1211 [2024-11-09 05:19:34,113 INFO L226 Difference]: Without dead ends: 1210 [2024-11-09 05:19:34,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 198 SyntacticMatches, 25 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1121 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=259, Invalid=1633, Unknown=0, NotChecked=0, Total=1892 [2024-11-09 05:19:34,114 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 138 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:34,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 110 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:19:34,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2024-11-09 05:19:34,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1178. [2024-11-09 05:19:34,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 1055 states have (on average 1.1355450236966824) internal successors, (1198), 1062 states have internal predecessors, (1198), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-09 05:19:34,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1424 transitions. [2024-11-09 05:19:34,249 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1424 transitions. Word has length 126 [2024-11-09 05:19:34,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:34,249 INFO L471 AbstractCegarLoop]: Abstraction has 1178 states and 1424 transitions. [2024-11-09 05:19:34,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 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 05:19:34,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1424 transitions. [2024-11-09 05:19:34,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-09 05:19:34,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:34,251 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 05:19:34,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-09 05:19:34,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-09 05:19:34,455 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:19:34,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:34,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1519716833, now seen corresponding path program 4 times [2024-11-09 05:19:34,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:34,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995121664] [2024-11-09 05:19:34,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:34,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:34,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:19:34,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2043337096] [2024-11-09 05:19:34,487 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 05:19:34,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:19:34,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:19:34,492 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:19:34,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-09 05:19:34,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:34,570 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 05:19:34,572 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:19:35,210 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-09 05:19:35,210 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:19:35,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:35,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995121664] [2024-11-09 05:19:35,825 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:19:35,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043337096] [2024-11-09 05:19:35,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043337096] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:19:35,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1531116930] [2024-11-09 05:19:35,826 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-09 05:19:35,826 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:19:35,826 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:19:35,826 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:19:35,826 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:19:47,587 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:19:47,588 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:19:47,589 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:19:57,565 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '41821#(and (<= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 5) (<= 1 |#StackHeapBarrier|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 5) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (exists ((|v_ULTIMATE.start_main_~s~0#1_231| Int) (|v_ULTIMATE.start_main_~p~0#1_154| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~s~0#1_231| |v_ULTIMATE.start_main_~p~0#1_154|)) (<= |v_ULTIMATE.start_main_~s~0#1_231| 9223372036854775808) (<= 1 |v_ULTIMATE.start_main_~p~0#1_154|) (<= |v_ULTIMATE.start_main_~p~0#1_154| 9223372036854775807))))' at error location [2024-11-09 05:19:57,565 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:19:57,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:19:57,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-09 05:19:57,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868642385] [2024-11-09 05:19:57,566 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:19:57,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:19:57,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:57,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:19:57,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=1483, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 05:19:57,567 INFO L87 Difference]: Start difference. First operand 1178 states and 1424 transitions. Second operand has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 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 05:19:58,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:58,126 INFO L93 Difference]: Finished difference Result 1185 states and 1428 transitions. [2024-11-09 05:19:58,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:19:58,127 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 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 126 [2024-11-09 05:19:58,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:58,129 INFO L225 Difference]: With dead ends: 1185 [2024-11-09 05:19:58,130 INFO L226 Difference]: Without dead ends: 1184 [2024-11-09 05:19:58,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 198 SyntacticMatches, 25 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1086 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=239, Invalid=1483, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 05:19:58,131 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 47 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:58,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 226 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:19:58,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2024-11-09 05:19:58,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1178. [2024-11-09 05:19:58,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 1055 states have (on average 1.1345971563981043) internal successors, (1197), 1062 states have internal predecessors, (1197), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-09 05:19:58,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1423 transitions. [2024-11-09 05:19:58,269 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1423 transitions. Word has length 126 [2024-11-09 05:19:58,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:58,270 INFO L471 AbstractCegarLoop]: Abstraction has 1178 states and 1423 transitions. [2024-11-09 05:19:58,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 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 05:19:58,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1423 transitions. [2024-11-09 05:19:58,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-09 05:19:58,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:58,271 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 05:19:58,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-09 05:19:58,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-09 05:19:58,471 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:19:58,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:58,472 INFO L85 PathProgramCache]: Analyzing trace with hash -2112781395, now seen corresponding path program 5 times [2024-11-09 05:19:58,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:58,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406981769] [2024-11-09 05:19:58,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:58,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:58,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:19:58,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1433323495] [2024-11-09 05:19:58,497 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:19:58,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:19:58,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:19:58,499 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:19:58,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-09 05:19:58,586 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-09 05:19:58,586 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:19:58,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 05:19:58,594 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:19:59,031 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 6 proven. 65 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-09 05:19:59,032 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:19:59,405 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:59,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406981769] [2024-11-09 05:19:59,405 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:19:59,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433323495] [2024-11-09 05:19:59,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433323495] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:19:59,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1582376236] [2024-11-09 05:19:59,406 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-09 05:19:59,406 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:19:59,407 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:19:59,407 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:19:59,407 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:20:09,968 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:20:09,969 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:20:09,970 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:20:18,583 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '44948#(and (<= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 5) (<= 1 |#StackHeapBarrier|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 5) (exists ((|v_ULTIMATE.start_main_~p~0#1_162| Int) (|v_ULTIMATE.start_main_~s~0#1_245| Int)) (and (<= 1 |v_ULTIMATE.start_main_~s~0#1_245|) (<= |v_ULTIMATE.start_main_~p~0#1_162| 9223372036854775807) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~s~0#1_245| |v_ULTIMATE.start_main_~p~0#1_162|)) (<= |v_ULTIMATE.start_main_~s~0#1_245| 9223372036854775808))) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)))' at error location [2024-11-09 05:20:18,584 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:20:18,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:20:18,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-09 05:20:18,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968014497] [2024-11-09 05:20:18,584 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:20:18,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 05:20:18,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:20:18,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 05:20:18,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=1492, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 05:20:18,586 INFO L87 Difference]: Start difference. First operand 1178 states and 1423 transitions. Second operand has 8 states, 6 states have (on average 11.666666666666666) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-09 05:20:19,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:19,086 INFO L93 Difference]: Finished difference Result 1294 states and 1564 transitions. [2024-11-09 05:20:19,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 05:20:19,087 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 11.666666666666666) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 126 [2024-11-09 05:20:19,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:19,091 INFO L225 Difference]: With dead ends: 1294 [2024-11-09 05:20:19,092 INFO L226 Difference]: Without dead ends: 1292 [2024-11-09 05:20:19,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 198 SyntacticMatches, 25 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1099 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=260, Invalid=1810, Unknown=0, NotChecked=0, Total=2070 [2024-11-09 05:20:19,093 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 188 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:19,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 209 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:20:19,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2024-11-09 05:20:19,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1268. [2024-11-09 05:20:19,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1136 states have (on average 1.1338028169014085) internal successors, (1288), 1143 states have internal predecessors, (1288), 122 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) [2024-11-09 05:20:19,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1532 transitions. [2024-11-09 05:20:19,235 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1532 transitions. Word has length 126 [2024-11-09 05:20:19,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:19,235 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1532 transitions. [2024-11-09 05:20:19,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 11.666666666666666) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-09 05:20:19,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1532 transitions. [2024-11-09 05:20:19,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-09 05:20:19,237 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:19,237 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 05:20:19,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-09 05:20:19,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-09 05:20:19,441 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:20:19,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:19,441 INFO L85 PathProgramCache]: Analyzing trace with hash -950938451, now seen corresponding path program 6 times [2024-11-09 05:20:19,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:19,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18449503] [2024-11-09 05:20:19,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:19,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:20:19,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [742327130] [2024-11-09 05:20:19,472 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:20:19,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:20:19,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:20:19,473 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:20:19,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-09 05:20:19,632 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:20:19,632 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:20:19,634 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 05:20:19,636 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:20:20,263 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-09 05:20:20,263 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:20:20,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:20:20,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18449503] [2024-11-09 05:20:20,607 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:20:20,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742327130] [2024-11-09 05:20:20,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742327130] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:20:20,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [529830421] [2024-11-09 05:20:20,608 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-09 05:20:20,608 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:20:20,609 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:20:20,609 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:20:20,609 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:20:35,439 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:20:35,440 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:20:35,441 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:20:44,006 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '48304#(and (<= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 5) (<= 1 |#StackHeapBarrier|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 5) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (exists ((|v_ULTIMATE.start_main_~p~0#1_170| Int) (|v_ULTIMATE.start_main_~s~0#1_260| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~s~0#1_260| |v_ULTIMATE.start_main_~p~0#1_170|)) (<= 1 |v_ULTIMATE.start_main_~s~0#1_260|) (<= |v_ULTIMATE.start_main_~s~0#1_260| 9223372036854775808) (<= |v_ULTIMATE.start_main_~p~0#1_170| 9223372036854775807))))' at error location [2024-11-09 05:20:44,006 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:20:44,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:20:44,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-09 05:20:44,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784144290] [2024-11-09 05:20:44,007 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:20:44,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:20:44,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:20:44,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:20:44,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=1485, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 05:20:44,009 INFO L87 Difference]: Start difference. First operand 1268 states and 1532 transitions. Second operand has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 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 05:20:44,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:44,531 INFO L93 Difference]: Finished difference Result 1271 states and 1532 transitions. [2024-11-09 05:20:44,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:20:44,531 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 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 126 [2024-11-09 05:20:44,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:44,534 INFO L225 Difference]: With dead ends: 1271 [2024-11-09 05:20:44,535 INFO L226 Difference]: Without dead ends: 1270 [2024-11-09 05:20:44,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 198 SyntacticMatches, 25 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1034 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=237, Invalid=1485, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 05:20:44,536 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 48 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:44,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 226 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:20:44,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2024-11-09 05:20:44,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1268. [2024-11-09 05:20:44,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1136 states have (on average 1.1329225352112675) internal successors, (1287), 1143 states have internal predecessors, (1287), 122 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) [2024-11-09 05:20:44,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1531 transitions. [2024-11-09 05:20:44,739 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1531 transitions. Word has length 126 [2024-11-09 05:20:44,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:44,739 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1531 transitions. [2024-11-09 05:20:44,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 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 05:20:44,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1531 transitions. [2024-11-09 05:20:44,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-09 05:20:44,740 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:44,740 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:20:44,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-09 05:20:44,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-09 05:20:44,941 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:20:44,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:44,941 INFO L85 PathProgramCache]: Analyzing trace with hash -158994207, now seen corresponding path program 3 times [2024-11-09 05:20:44,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:44,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435109316] [2024-11-09 05:20:44,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:44,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:44,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:20:44,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1375027307] [2024-11-09 05:20:44,975 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:20:44,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:20:44,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:20:44,977 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:20:44,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-09 05:20:45,064 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:20:45,064 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:20:45,066 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 05:20:45,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:20:46,750 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 7 proven. 94 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-09 05:20:46,750 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:20:49,413 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:20:49,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435109316] [2024-11-09 05:20:49,413 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:20:49,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375027307] [2024-11-09 05:20:49,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375027307] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:20:49,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1589648930] [2024-11-09 05:20:49,415 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-09 05:20:49,415 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:20:49,415 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:20:49,415 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:20:49,415 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:21:06,733 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:21:06,734 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:21:06,735 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:21:17,493 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '51650#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 5) (<= 1 |ULTIMATE.start_main_~p~0#1|) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 5) (exists ((|v_ULTIMATE.start_main_~r~0#1_169| Int) (|v_ULTIMATE.start_main_~q~0#1_278| Int)) (and (<= |v_ULTIMATE.start_main_~r~0#1_169| 0) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_278| 9223372036854775808)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_278| |v_ULTIMATE.start_main_~r~0#1_169|)) (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~r~0#1_169|)))) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|) 9223372036854775807))' at error location [2024-11-09 05:21:17,493 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:21:17,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:21:17,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-09 05:21:17,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767309262] [2024-11-09 05:21:17,494 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:21:17,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 05:21:17,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:21:17,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 05:21:17,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=2269, Unknown=1, NotChecked=0, Total=2550 [2024-11-09 05:21:17,495 INFO L87 Difference]: Start difference. First operand 1268 states and 1531 transitions. Second operand has 15 states, 13 states have (on average 7.076923076923077) internal successors, (92), 15 states have internal predecessors, (92), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-09 05:21:20,977 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 05:21:23,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:21:24,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:21:27,440 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 05:21:29,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:29,024 INFO L93 Difference]: Finished difference Result 1270 states and 1532 transitions. [2024-11-09 05:21:29,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 05:21:29,024 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 7.076923076923077) internal successors, (92), 15 states have internal predecessors, (92), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 128 [2024-11-09 05:21:29,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:29,028 INFO L225 Difference]: With dead ends: 1270 [2024-11-09 05:21:29,029 INFO L226 Difference]: Without dead ends: 1269 [2024-11-09 05:21:29,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 194 SyntacticMatches, 26 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1517 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=318, Invalid=2651, Unknown=1, NotChecked=0, Total=2970 [2024-11-09 05:21:29,030 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 57 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 1374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:29,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 290 Invalid, 1374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1365 Invalid, 6 Unknown, 0 Unchecked, 11.0s Time] [2024-11-09 05:21:29,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2024-11-09 05:21:29,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1268. [2024-11-09 05:21:29,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1136 states have (on average 1.1320422535211268) internal successors, (1286), 1143 states have internal predecessors, (1286), 122 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) [2024-11-09 05:21:29,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1530 transitions. [2024-11-09 05:21:29,181 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1530 transitions. Word has length 128 [2024-11-09 05:21:29,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:29,181 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1530 transitions. [2024-11-09 05:21:29,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 7.076923076923077) internal successors, (92), 15 states have internal predecessors, (92), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-09 05:21:29,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1530 transitions. [2024-11-09 05:21:29,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-09 05:21:29,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:29,183 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:21:29,205 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-09 05:21:29,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-09 05:21:29,383 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:21:29,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:29,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1136612079, now seen corresponding path program 4 times [2024-11-09 05:21:29,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:21:29,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797477550] [2024-11-09 05:21:29,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:29,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:21:29,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:21:29,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1148143917] [2024-11-09 05:21:29,427 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 05:21:29,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:21:29,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:21:29,430 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:21:29,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-09 05:21:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:29,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:21:29,527 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:21:30,274 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-09 05:21:30,275 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:21:30,449 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:21:30,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797477550] [2024-11-09 05:21:30,450 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:21:30,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148143917] [2024-11-09 05:21:30,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148143917] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:21:30,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [424730740] [2024-11-09 05:21:30,452 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-09 05:21:30,452 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:21:30,452 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:21:30,452 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:21:30,452 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:21:43,606 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:21:43,611 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:21:43,612 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:21:52,370 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '54993#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 5) (<= 1 |ULTIMATE.start_main_~p~0#1|) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~q~0#1_293| Int) (|v_ULTIMATE.start_main_~r~0#1_177| Int)) (and (<= |v_ULTIMATE.start_main_~q~0#1_293| 0) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_293| 9223372036854775808)) (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~r~0#1_177|)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_293| |v_ULTIMATE.start_main_~r~0#1_177|)))) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 5) (<= |ULTIMATE.start_main_~b~0#1| 5) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|) 9223372036854775807))' at error location [2024-11-09 05:21:52,370 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:21:52,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:21:52,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-09 05:21:52,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881849701] [2024-11-09 05:21:52,370 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:21:52,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:21:52,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:21:52,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:21:52,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=1513, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 05:21:52,371 INFO L87 Difference]: Start difference. First operand 1268 states and 1530 transitions. Second operand has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 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 05:21:52,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:52,859 INFO L93 Difference]: Finished difference Result 1270 states and 1530 transitions. [2024-11-09 05:21:52,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:21:52,859 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 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 128 [2024-11-09 05:21:52,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:52,862 INFO L225 Difference]: With dead ends: 1270 [2024-11-09 05:21:52,862 INFO L226 Difference]: Without dead ends: 1269 [2024-11-09 05:21:52,863 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 203 SyntacticMatches, 26 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1019 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=209, Invalid=1513, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 05:21:52,863 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 48 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:52,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 173 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:21:52,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2024-11-09 05:21:53,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1268. [2024-11-09 05:21:53,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1136 states have (on average 1.131161971830986) internal successors, (1285), 1143 states have internal predecessors, (1285), 122 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) [2024-11-09 05:21:53,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1529 transitions. [2024-11-09 05:21:53,014 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1529 transitions. Word has length 128 [2024-11-09 05:21:53,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:53,014 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1529 transitions. [2024-11-09 05:21:53,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 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 05:21:53,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1529 transitions. [2024-11-09 05:21:53,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-09 05:21:53,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:53,016 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:21:53,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-09 05:21:53,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-09 05:21:53,216 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:21:53,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:53,217 INFO L85 PathProgramCache]: Analyzing trace with hash -319421983, now seen corresponding path program 5 times [2024-11-09 05:21:53,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:21:53,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502982272] [2024-11-09 05:21:53,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:53,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:21:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:21:53,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [701514450] [2024-11-09 05:21:53,244 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:21:53,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:21:53,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:21:53,247 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:21:53,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-09 05:21:53,328 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-09 05:21:53,328 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:21:53,330 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 05:21:53,332 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:22:04,945 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 67 proven. 4 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-09 05:22:04,946 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:22:08,995 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 59 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-09 05:22:08,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:22:08,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502982272] [2024-11-09 05:22:08,995 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:22:08,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701514450] [2024-11-09 05:22:08,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701514450] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:22:08,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1829027677] [2024-11-09 05:22:08,997 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-09 05:22:08,998 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:22:08,998 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:22:08,998 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:22:08,998 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:22:21,199 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:22:21,200 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:22:21,201 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:23:09,565 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '58671#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 5) (<= 1 |ULTIMATE.start_main_~p~0#1|) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 0 (+ |ULTIMATE.start_main_~b~0#1| 4)) (<= |ULTIMATE.start_main_~y~0#1| 5) (<= |ULTIMATE.start_main_~b~0#1| 5) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|) 9223372036854775807) (exists ((|v_ULTIMATE.start_main_~r~0#1_184| Int) (|v_ULTIMATE.start_main_~q~0#1_311| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_311| |v_ULTIMATE.start_main_~r~0#1_184|)) (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~r~0#1_184|)) (<= |v_ULTIMATE.start_main_~q~0#1_311| 0) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_311| 9223372036854775808)))))' at error location [2024-11-09 05:23:09,565 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:23:09,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:23:09,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 12 [2024-11-09 05:23:09,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074534464] [2024-11-09 05:23:09,566 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:23:09,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:23:09,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:23:09,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:23:09,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=1743, Unknown=5, NotChecked=0, Total=1980 [2024-11-09 05:23:09,567 INFO L87 Difference]: Start difference. First operand 1268 states and 1529 transitions. Second operand has 13 states, 11 states have (on average 8.636363636363637) internal successors, (95), 13 states have internal predecessors, (95), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-09 05:23:13,030 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 05:23:15,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:23:17,053 WARN L539 Checker$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 05:23:19,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:23:21,751 WARN L539 Checker$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 05:23:23,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:23:25,768 WARN L539 Checker$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 05:23:28,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:23:30,716 WARN L539 Checker$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 05:23:33,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:23:35,052 WARN L539 Checker$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 05:23:37,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:23:39,082 WARN L539 Checker$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 05:23:41,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:23:43,104 WARN L539 Checker$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 05:23:45,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:23:47,123 WARN L539 Checker$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 05:23:49,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:23:51,141 WARN L539 Checker$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 05:23:53,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:23:55,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:23:57,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:23:59,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:24:01,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:24:03,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:24:05,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:24:07,220 WARN L539 Checker$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 05:24:09,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:24:12,057 WARN L539 Checker$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 05:24:14,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:24:17,095 WARN L539 Checker$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 05:24:19,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 05:24:21,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 05:24:23,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 05:24:24,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:24:24,648 INFO L93 Difference]: Finished difference Result 1306 states and 1573 transitions. [2024-11-09 05:24:24,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 05:24:24,648 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 8.636363636363637) internal successors, (95), 13 states have internal predecessors, (95), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 128 [2024-11-09 05:24:24,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:24:24,651 INFO L225 Difference]: With dead ends: 1306 [2024-11-09 05:24:24,652 INFO L226 Difference]: Without dead ends: 1305 [2024-11-09 05:24:24,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 313 SyntacticMatches, 26 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1371 ImplicationChecksByTransitivity, 62.5s TimeCoverageRelationStatistics Valid=280, Invalid=2067, Unknown=5, NotChecked=0, Total=2352 [2024-11-09 05:24:24,653 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 166 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 26 mSolverCounterUnsat, 34 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 34 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:24:24,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 172 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 313 Invalid, 34 Unknown, 0 Unchecked, 73.8s Time] [2024-11-09 05:24:24,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2024-11-09 05:24:24,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1268. [2024-11-09 05:24:24,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1136 states have (on average 1.118838028169014) internal successors, (1271), 1143 states have internal predecessors, (1271), 122 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) [2024-11-09 05:24:24,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1515 transitions. [2024-11-09 05:24:24,877 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1515 transitions. Word has length 128 [2024-11-09 05:24:24,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:24:24,877 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1515 transitions. [2024-11-09 05:24:24,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 8.636363636363637) internal successors, (95), 13 states have internal predecessors, (95), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-09 05:24:24,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1515 transitions. [2024-11-09 05:24:24,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-09 05:24:24,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:24:24,879 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:24:24,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-09 05:24:25,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:24:25,084 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:24:25,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:24:25,085 INFO L85 PathProgramCache]: Analyzing trace with hash 976184303, now seen corresponding path program 6 times [2024-11-09 05:24:25,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:24:25,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927628877] [2024-11-09 05:24:25,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:24:25,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:24:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:24:25,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2027585513] [2024-11-09 05:24:25,129 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:24:25,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:24:25,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:24:25,131 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:24:25,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-09 05:24:25,310 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:24:25,311 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:24:25,312 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 05:24:25,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:24:26,321 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-09 05:24:26,321 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:24:26,703 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:24:26,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927628877] [2024-11-09 05:24:26,704 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:24:26,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027585513] [2024-11-09 05:24:26,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027585513] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:24:26,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1006264108] [2024-11-09 05:24:26,706 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-09 05:24:26,706 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:24:26,707 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:24:26,707 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:24:26,707 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:24:38,372 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:24:38,372 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:24:38,374 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:24:48,227 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '62052#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 5) (<= 1 |ULTIMATE.start_main_~p~0#1|) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 5) (exists ((|v_ULTIMATE.start_main_~q~0#1_326| Int) (|v_ULTIMATE.start_main_~r~0#1_192| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_326| 9223372036854775808)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_326| |v_ULTIMATE.start_main_~r~0#1_192|)) (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~r~0#1_192|)) (<= |v_ULTIMATE.start_main_~q~0#1_326| 0))) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|) 9223372036854775807))' at error location [2024-11-09 05:24:48,227 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:24:48,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:24:48,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-09 05:24:48,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348272194] [2024-11-09 05:24:48,227 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:24:48,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:24:48,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:24:48,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:24:48,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=1498, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 05:24:48,229 INFO L87 Difference]: Start difference. First operand 1268 states and 1515 transitions. Second operand has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 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 05:24:48,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:24:48,893 INFO L93 Difference]: Finished difference Result 1271 states and 1516 transitions. [2024-11-09 05:24:48,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:24:48,894 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 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 128 [2024-11-09 05:24:48,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:24:48,898 INFO L225 Difference]: With dead ends: 1271 [2024-11-09 05:24:48,898 INFO L226 Difference]: Without dead ends: 1270 [2024-11-09 05:24:48,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 203 SyntacticMatches, 26 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1061 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=224, Invalid=1498, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 05:24:48,899 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 42 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:24:48,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 268 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:24:48,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2024-11-09 05:24:49,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1268. [2024-11-09 05:24:49,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1136 states have (on average 1.1179577464788732) internal successors, (1270), 1143 states have internal predecessors, (1270), 122 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) [2024-11-09 05:24:49,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1514 transitions. [2024-11-09 05:24:49,146 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1514 transitions. Word has length 128 [2024-11-09 05:24:49,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:24:49,147 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1514 transitions. [2024-11-09 05:24:49,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 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 05:24:49,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1514 transitions. [2024-11-09 05:24:49,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-09 05:24:49,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:24:49,149 INFO L215 NwaCegarLoop]: trace histogram [10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 05:24:49,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-11-09 05:24:49,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:24:49,350 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:24:49,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:24:49,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1114653426, now seen corresponding path program 1 times [2024-11-09 05:24:49,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:24:49,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330266204] [2024-11-09 05:24:49,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:24:49,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:24:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:24:49,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1793697475] [2024-11-09 05:24:49,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:24:49,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:24:49,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:24:49,387 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:24:49,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-09 05:24:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:24:49,483 INFO L255 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 05:24:49,487 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:24:51,217 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 1 proven. 107 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-09 05:24:51,218 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:24:55,455 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:24:55,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330266204] [2024-11-09 05:24:55,456 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:24:55,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793697475] [2024-11-09 05:24:55,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793697475] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:24:55,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1023883182] [2024-11-09 05:24:55,457 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-09 05:24:55,457 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:24:55,458 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:24:55,458 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:24:55,458 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:25:06,180 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:25:06,181 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:25:06,182 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:25:24,210 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '65431#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= 0 |ULTIMATE.start_main_~b~0#1|) (exists ((|v_ULTIMATE.start_main_~r~0#1_200| Int) (|v_ULTIMATE.start_main_~y~0#1_67| Int)) (and (<= |v_ULTIMATE.start_main_~y~0#1_67| 5) (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~r~0#1_200|)) (<= |v_ULTIMATE.start_main_~r~0#1_200| 0) (= (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|) (+ (* |ULTIMATE.start_main_~q~0#1| |v_ULTIMATE.start_main_~r~0#1_200|) 1)) (<= (+ (* |v_ULTIMATE.start_main_~y~0#1_67| |v_ULTIMATE.start_main_~r~0#1_200|) 9223372036854775809) 0) (<= 0 (+ 9223372036854775806 |ULTIMATE.start_main_~q~0#1|)))) (<= |ULTIMATE.start_main_~x~0#1| 5) (<= 1 |ULTIMATE.start_main_~p~0#1|) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775808) (<= |ULTIMATE.start_main_~a~0#1| 5) (<= |ULTIMATE.start_main_~b~0#1| 5) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~p~0#1| 9223372036854775807))' at error location [2024-11-09 05:25:24,211 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:25:24,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:25:24,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-09 05:25:24,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781367552] [2024-11-09 05:25:24,211 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:25:24,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:25:24,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:25:24,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:25:24,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=2067, Unknown=2, NotChecked=0, Total=2352 [2024-11-09 05:25:24,214 INFO L87 Difference]: Start difference. First operand 1268 states and 1514 transitions. Second operand has 13 states, 11 states have (on average 8.636363636363637) internal successors, (95), 12 states have internal predecessors, (95), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-09 05:25:25,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:25:25,658 INFO L93 Difference]: Finished difference Result 1339 states and 1599 transitions. [2024-11-09 05:25:25,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 05:25:25,659 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 8.636363636363637) internal successors, (95), 12 states have internal predecessors, (95), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 134 [2024-11-09 05:25:25,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:25:25,664 INFO L225 Difference]: With dead ends: 1339 [2024-11-09 05:25:25,664 INFO L226 Difference]: Without dead ends: 1338 [2024-11-09 05:25:25,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 214 SyntacticMatches, 26 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1486 ImplicationChecksByTransitivity, 22.4s TimeCoverageRelationStatistics Valid=312, Invalid=2338, Unknown=2, NotChecked=0, Total=2652 [2024-11-09 05:25:25,666 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 96 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:25:25,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 419 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 05:25:25,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2024-11-09 05:25:25,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 1262. [2024-11-09 05:25:25,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1130 states have (on average 1.1176991150442477) internal successors, (1263), 1137 states have internal predecessors, (1263), 122 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) [2024-11-09 05:25:25,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 1507 transitions. [2024-11-09 05:25:25,872 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 1507 transitions. Word has length 134 [2024-11-09 05:25:25,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:25:25,872 INFO L471 AbstractCegarLoop]: Abstraction has 1262 states and 1507 transitions. [2024-11-09 05:25:25,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 8.636363636363637) internal successors, (95), 12 states have internal predecessors, (95), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-09 05:25:25,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 1507 transitions. [2024-11-09 05:25:25,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-09 05:25:25,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:25:25,874 INFO L215 NwaCegarLoop]: trace histogram [10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 05:25:25,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-09 05:25:26,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:25:26,079 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:25:26,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:25:26,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1777274382, now seen corresponding path program 2 times [2024-11-09 05:25:26,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:25:26,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369451459] [2024-11-09 05:25:26,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:25:26,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:25:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:25:26,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [623448307] [2024-11-09 05:25:26,118 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:25:26,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:25:26,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:25:26,120 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:25:26,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-09 05:25:26,230 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-09 05:25:26,230 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:25:26,232 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 05:25:26,236 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:25:29,636 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 14 proven. 87 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-09 05:25:29,636 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:25:32,250 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:25:32,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369451459] [2024-11-09 05:25:32,251 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:25:32,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623448307] [2024-11-09 05:25:32,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623448307] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:25:32,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1232517626] [2024-11-09 05:25:32,252 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-09 05:25:32,252 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:25:32,253 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:25:32,253 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:25:32,253 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:25:46,544 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:25:46,545 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:25:46,546 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:26:06,738 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '68890#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= 0 |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 5) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775808) (<= |ULTIMATE.start_main_~a~0#1| 5) (<= |ULTIMATE.start_main_~b~0#1| 5) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= 1 |ULTIMATE.start_main_~x~0#1|) (exists ((|v_ULTIMATE.start_main_~y~0#1_70| Int) (|v_ULTIMATE.start_main_~r~0#1_207| Int)) (and (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~r~0#1_207|)) (<= |v_ULTIMATE.start_main_~y~0#1_70| 5) (<= 1 |v_ULTIMATE.start_main_~y~0#1_70|) (<= 0 (+ 9223372036854775806 |ULTIMATE.start_main_~q~0#1|)) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~y~0#1_70| |v_ULTIMATE.start_main_~r~0#1_207|)) 0) (= (+ (* |ULTIMATE.start_main_~q~0#1| |v_ULTIMATE.start_main_~r~0#1_207|) 1) (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|)))) (<= |ULTIMATE.start_main_~p~0#1| 9223372036854775807))' at error location [2024-11-09 05:26:06,739 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:26:06,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:26:06,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-09 05:26:06,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646691682] [2024-11-09 05:26:06,739 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:26:06,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 05:26:06,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:26:06,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 05:26:06,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=313, Invalid=2338, Unknown=1, NotChecked=0, Total=2652 [2024-11-09 05:26:06,741 INFO L87 Difference]: Start difference. First operand 1262 states and 1507 transitions. Second operand has 16 states, 13 states have (on average 5.923076923076923) internal successors, (77), 15 states have internal predecessors, (77), 6 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2024-11-09 05:26:10,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:26:10,904 INFO L93 Difference]: Finished difference Result 1414 states and 1687 transitions. [2024-11-09 05:26:10,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 05:26:10,905 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 5.923076923076923) internal successors, (77), 15 states have internal predecessors, (77), 6 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) Word has length 134 [2024-11-09 05:26:10,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:26:10,911 INFO L225 Difference]: With dead ends: 1414 [2024-11-09 05:26:10,912 INFO L226 Difference]: Without dead ends: 1411 [2024-11-09 05:26:10,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 211 SyntacticMatches, 26 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1480 ImplicationChecksByTransitivity, 24.5s TimeCoverageRelationStatistics Valid=364, Invalid=2827, Unknown=1, NotChecked=0, Total=3192 [2024-11-09 05:26:10,913 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 136 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 1107 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:26:10,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 217 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1107 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-09 05:26:10,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1411 states. [2024-11-09 05:26:11,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1411 to 1276. [2024-11-09 05:26:11,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 1143 states have (on average 1.1128608923884515) internal successors, (1272), 1150 states have internal predecessors, (1272), 123 states have call successors, (123), 2 states have call predecessors, (123), 2 states have return successors, (123), 123 states have call predecessors, (123), 123 states have call successors, (123) [2024-11-09 05:26:11,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1518 transitions. [2024-11-09 05:26:11,118 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1518 transitions. Word has length 134 [2024-11-09 05:26:11,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:26:11,119 INFO L471 AbstractCegarLoop]: Abstraction has 1276 states and 1518 transitions. [2024-11-09 05:26:11,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 5.923076923076923) internal successors, (77), 15 states have internal predecessors, (77), 6 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2024-11-09 05:26:11,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1518 transitions. [2024-11-09 05:26:11,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-09 05:26:11,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:26:11,120 INFO L215 NwaCegarLoop]: trace histogram [10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:26:11,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-11-09 05:26:11,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:26:11,321 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-09 05:26:11,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:26:11,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1243480420, now seen corresponding path program 3 times [2024-11-09 05:26:11,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:26:11,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579282126] [2024-11-09 05:26:11,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:26:11,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:26:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:26:11,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [132169186] [2024-11-09 05:26:11,347 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:26:11,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:26:11,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:26:11,349 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:26:11,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f568d9b-a0a5-4acd-87ac-e235a5fc6f20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-09 05:26:11,452 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:26:11,453 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:26:11,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:26:11,462 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:26:12,530 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 3 proven. 118 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-09 05:26:12,531 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:26:14,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:26:14,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579282126] [2024-11-09 05:26:14,718 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:26:14,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132169186] [2024-11-09 05:26:14,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132169186] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:26:14,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [924366432] [2024-11-09 05:26:14,720 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-09 05:26:14,720 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:26:14,721 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:26:14,721 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:26:14,721 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:26:17,271 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:26:17,272 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:26:17,274 INFO L180 IcfgInterpreter]: Interpretation finished