./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound2.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_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/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_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/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_49cc6180-4ecd-4c9e-960f-eb69d02c967e/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 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:19:19,952 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:19:20,069 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 01:19:20,076 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:19:20,077 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:19:20,110 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:19:20,111 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:19:20,111 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:19:20,112 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:19:20,113 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:19:20,114 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:19:20,115 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:19:20,115 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:19:20,116 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:19:20,116 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:19:20,117 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:19:20,118 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:19:20,118 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:19:20,119 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:19:20,119 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:19:20,120 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:19:20,121 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:19:20,122 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:19:20,122 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:19:20,123 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:19:20,124 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:19:20,124 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:19:20,125 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:19:20,125 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:19:20,126 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:19:20,126 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:19:20,127 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:19:20,127 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 01:19:20,128 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 01:19:20,129 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:19:20,129 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:19:20,130 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:19:20,130 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:19:20,131 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:19:20,131 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:19:20,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:19:20,133 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:19:20,133 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:19:20,133 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:19:20,134 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:19:20,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:19:20,135 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:19:20,135 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:19:20,136 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:19:20,136 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_49cc6180-4ecd-4c9e-960f-eb69d02c967e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 [2024-11-09 01:19:20,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:19:20,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:19:20,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:19:20,563 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:19:20,563 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:19:20,565 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound2.c Unable to find full path for "g++" [2024-11-09 01:19:23,171 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:19:23,552 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:19:23,553 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound2.c [2024-11-09 01:19:23,564 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/data/896e2c714/9c534969fc2d4830a97e2d5be8adef49/FLAGdf2cecb2d [2024-11-09 01:19:23,597 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/data/896e2c714/9c534969fc2d4830a97e2d5be8adef49 [2024-11-09 01:19:23,602 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:19:23,603 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:19:23,605 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:19:23,605 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:19:23,613 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:19:23,614 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:19:23" (1/1) ... [2024-11-09 01:19:23,616 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73ea4a55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:23, skipping insertion in model container [2024-11-09 01:19:23,616 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:19:23" (1/1) ... [2024-11-09 01:19:23,645 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:19:23,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:19:23,966 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:19:23,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:19:24,013 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:19:24,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:24 WrapperNode [2024-11-09 01:19:24,014 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:19:24,015 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:19:24,015 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:19:24,015 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:19:24,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:24" (1/1) ... [2024-11-09 01:19:24,032 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:24" (1/1) ... [2024-11-09 01:19:24,059 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2024-11-09 01:19:24,062 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:19:24,063 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:19:24,063 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:19:24,064 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:19:24,076 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:24" (1/1) ... [2024-11-09 01:19:24,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:24" (1/1) ... [2024-11-09 01:19:24,078 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:24" (1/1) ... [2024-11-09 01:19:24,078 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:24" (1/1) ... [2024-11-09 01:19:24,083 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:24" (1/1) ... [2024-11-09 01:19:24,087 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:24" (1/1) ... [2024-11-09 01:19:24,089 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:24" (1/1) ... [2024-11-09 01:19:24,090 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:24" (1/1) ... [2024-11-09 01:19:24,093 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:19:24,094 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:19:24,094 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:19:24,094 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:19:24,096 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:24" (1/1) ... [2024-11-09 01:19:24,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:19:24,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:19:24,152 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:19:24,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:19:24,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:19:24,192 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 01:19:24,192 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 01:19:24,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:19:24,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:19:24,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:19:24,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 01:19:24,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 01:19:24,275 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:19:24,278 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:19:24,577 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-09 01:19:24,577 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:19:24,644 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:19:24,645 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 01:19:24,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:19:24 BoogieIcfgContainer [2024-11-09 01:19:24,646 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:19:24,649 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:19:24,650 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:19:24,654 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:19:24,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:19:23" (1/3) ... [2024-11-09 01:19:24,656 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@264ec828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:19:24, skipping insertion in model container [2024-11-09 01:19:24,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:24" (2/3) ... [2024-11-09 01:19:24,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@264ec828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:19:24, skipping insertion in model container [2024-11-09 01:19:24,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:19:24" (3/3) ... [2024-11-09 01:19:24,659 INFO L112 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound2.c [2024-11-09 01:19:24,685 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:19:24,686 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-11-09 01:19:24,763 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:19:24,773 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;@543be1a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:19:24,773 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-09 01:19:24,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 28 states have (on average 1.8214285714285714) internal successors, (51), 48 states have internal predecessors, (51), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 01:19:24,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 01:19:24,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:19:24,807 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:19:24,807 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:19:24,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:19:24,815 INFO L85 PathProgramCache]: Analyzing trace with hash 229463047, now seen corresponding path program 1 times [2024-11-09 01:19:24,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:19:24,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247564625] [2024-11-09 01:19:24,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:24,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:19:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:19:25,108 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:19:25,109 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:19:25,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247564625] [2024-11-09 01:19:25,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247564625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:19:25,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:19:25,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:19:25,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237152430] [2024-11-09 01:19:25,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:19:25,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 01:19:25,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:19:25,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 01:19:25,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 01:19:25,152 INFO L87 Difference]: Start difference. First operand has 55 states, 28 states have (on average 1.8214285714285714) internal successors, (51), 48 states have internal predecessors, (51), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:19:25,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:19:25,197 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2024-11-09 01:19:25,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 01:19:25,203 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 10 [2024-11-09 01:19:25,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:19:25,212 INFO L225 Difference]: With dead ends: 68 [2024-11-09 01:19:25,212 INFO L226 Difference]: Without dead ends: 52 [2024-11-09 01:19:25,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 01:19:25,219 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:19:25,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:19:25,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-09 01:19:25,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-09 01:19:25,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 46 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 01:19:25,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2024-11-09 01:19:25,254 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 10 [2024-11-09 01:19:25,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:19:25,256 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2024-11-09 01:19:25,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:19:25,257 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2024-11-09 01:19:25,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 01:19:25,258 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:19:25,258 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:19:25,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 01:19:25,259 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:19:25,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:19:25,260 INFO L85 PathProgramCache]: Analyzing trace with hash 229459900, now seen corresponding path program 1 times [2024-11-09 01:19:25,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:19:25,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594561928] [2024-11-09 01:19:25,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:25,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:19:25,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:19:25,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1487826370] [2024-11-09 01:19:25,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:25,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:19:25,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:19:25,295 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:19:25,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 01:19:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:19:25,377 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:19:25,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:19:25,412 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:19:25,414 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:19:25,414 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:19:25,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594561928] [2024-11-09 01:19:25,415 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:19:25,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487826370] [2024-11-09 01:19:25,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487826370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:19:25,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:19:25,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:19:25,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252047743] [2024-11-09 01:19:25,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:19:25,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:19:25,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:19:25,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:19:25,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:19:25,423 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:19:25,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:19:25,580 INFO L93 Difference]: Finished difference Result 86 states and 96 transitions. [2024-11-09 01:19:25,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:19:25,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 10 [2024-11-09 01:19:25,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:19:25,584 INFO L225 Difference]: With dead ends: 86 [2024-11-09 01:19:25,585 INFO L226 Difference]: Without dead ends: 80 [2024-11-09 01:19:25,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:19:25,587 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 26 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:19:25,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 61 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:19:25,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-09 01:19:25,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 72. [2024-11-09 01:19:25,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 46 states have (on average 1.7173913043478262) internal successors, (79), 65 states have internal predecessors, (79), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 01:19:25,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 87 transitions. [2024-11-09 01:19:25,607 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 87 transitions. Word has length 10 [2024-11-09 01:19:25,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:19:25,608 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 87 transitions. [2024-11-09 01:19:25,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:19:25,609 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 87 transitions. [2024-11-09 01:19:25,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 01:19:25,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:19:25,610 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:19:25,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 01:19:25,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:19:25,814 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:19:25,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:19:25,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1467633310, now seen corresponding path program 1 times [2024-11-09 01:19:25,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:19:25,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098882353] [2024-11-09 01:19:25,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:25,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:19:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:19:25,979 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:19:25,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:19:25,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098882353] [2024-11-09 01:19:25,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098882353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:19:25,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:19:25,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:19:25,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807306494] [2024-11-09 01:19:25,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:19:25,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:19:25,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:19:25,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:19:25,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:19:25,988 INFO L87 Difference]: Start difference. First operand 72 states and 87 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:19:26,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:19:26,206 INFO L93 Difference]: Finished difference Result 116 states and 148 transitions. [2024-11-09 01:19:26,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:19:26,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 12 [2024-11-09 01:19:26,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:19:26,210 INFO L225 Difference]: With dead ends: 116 [2024-11-09 01:19:26,211 INFO L226 Difference]: Without dead ends: 109 [2024-11-09 01:19:26,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:19:26,213 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 34 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:19:26,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 59 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:19:26,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-09 01:19:26,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 105. [2024-11-09 01:19:26,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 77 states have (on average 1.5974025974025974) internal successors, (123), 96 states have internal predecessors, (123), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 01:19:26,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 135 transitions. [2024-11-09 01:19:26,236 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 135 transitions. Word has length 12 [2024-11-09 01:19:26,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:19:26,237 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 135 transitions. [2024-11-09 01:19:26,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:19:26,238 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 135 transitions. [2024-11-09 01:19:26,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 01:19:26,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:19:26,239 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:19:26,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 01:19:26,239 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:19:26,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:19:26,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1748007595, now seen corresponding path program 1 times [2024-11-09 01:19:26,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:19:26,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947893430] [2024-11-09 01:19:26,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:26,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:19:26,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:19:26,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:19:26,431 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:19:26,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947893430] [2024-11-09 01:19:26,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947893430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:19:26,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:19:26,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:19:26,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369453463] [2024-11-09 01:19:26,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:19:26,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:19:26,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:19:26,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:19:26,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:19:26,436 INFO L87 Difference]: Start difference. First operand 105 states and 135 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:19:26,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:19:26,962 INFO L93 Difference]: Finished difference Result 111 states and 136 transitions. [2024-11-09 01:19:26,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:19:26,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2024-11-09 01:19:26,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:19:26,965 INFO L225 Difference]: With dead ends: 111 [2024-11-09 01:19:26,965 INFO L226 Difference]: Without dead ends: 102 [2024-11-09 01:19:26,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:19:26,972 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 20 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:19:26,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 76 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 01:19:26,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-09 01:19:27,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2024-11-09 01:19:27,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 72 states have (on average 1.5694444444444444) internal successors, (113), 91 states have internal predecessors, (113), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 01:19:27,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions. [2024-11-09 01:19:27,009 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 13 [2024-11-09 01:19:27,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:19:27,010 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions. [2024-11-09 01:19:27,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:19:27,011 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions. [2024-11-09 01:19:27,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 01:19:27,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:19:27,013 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:19:27,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 01:19:27,014 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:19:27,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:19:27,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1646339456, now seen corresponding path program 1 times [2024-11-09 01:19:27,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:19:27,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068438249] [2024-11-09 01:19:27,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:27,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:19:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:19:27,424 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:19:27,425 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:19:27,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068438249] [2024-11-09 01:19:27,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068438249] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:19:27,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409481628] [2024-11-09 01:19:27,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:27,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:19:27,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:19:27,430 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:19:27,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 01:19:27,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:19:27,516 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 01:19:27,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:19:27,753 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:19:27,754 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:19:27,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409481628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:19:27,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:19:27,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-09 01:19:27,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014922375] [2024-11-09 01:19:27,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:19:27,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:19:27,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:19:27,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:19:27,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-09 01:19:27,762 INFO L87 Difference]: Start difference. First operand 100 states and 125 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:19:27,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:19:27,953 INFO L93 Difference]: Finished difference Result 103 states and 129 transitions. [2024-11-09 01:19:27,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:19:27,954 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-11-09 01:19:27,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:19:27,955 INFO L225 Difference]: With dead ends: 103 [2024-11-09 01:19:27,956 INFO L226 Difference]: Without dead ends: 102 [2024-11-09 01:19:27,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 01:19:27,958 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 72 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:19:27,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 42 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:19:27,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-09 01:19:27,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2024-11-09 01:19:27,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 72 states have (on average 1.5555555555555556) internal successors, (112), 91 states have internal predecessors, (112), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 01:19:27,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 124 transitions. [2024-11-09 01:19:27,973 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 124 transitions. Word has length 14 [2024-11-09 01:19:27,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:19:27,973 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 124 transitions. [2024-11-09 01:19:27,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:19:27,974 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 124 transitions. [2024-11-09 01:19:27,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 01:19:27,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:19:27,975 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:19:27,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 01:19:28,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:19:28,176 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:19:28,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:19:28,177 INFO L85 PathProgramCache]: Analyzing trace with hash -503084361, now seen corresponding path program 1 times [2024-11-09 01:19:28,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:19:28,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161661401] [2024-11-09 01:19:28,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:28,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:19:28,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:19:28,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1925660267] [2024-11-09 01:19:28,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:28,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:19:28,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:19:28,197 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:19:28,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 01:19:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:19:28,259 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 01:19:28,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:19:28,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:19:28,377 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:19:28,379 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:19:28,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161661401] [2024-11-09 01:19:28,379 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:19:28,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925660267] [2024-11-09 01:19:28,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925660267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:19:28,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:19:28,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:19:28,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378729740] [2024-11-09 01:19:28,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:19:28,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:19:28,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:19:28,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:19:28,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:19:28,385 INFO L87 Difference]: Start difference. First operand 100 states and 124 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:19:28,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:19:28,539 INFO L93 Difference]: Finished difference Result 101 states and 124 transitions. [2024-11-09 01:19:28,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:19:28,540 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-09 01:19:28,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:19:28,541 INFO L225 Difference]: With dead ends: 101 [2024-11-09 01:19:28,541 INFO L226 Difference]: Without dead ends: 100 [2024-11-09 01:19:28,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:19:28,542 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 65 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:19:28,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 47 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:19:28,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-09 01:19:28,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-09 01:19:28,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 72 states have (on average 1.5416666666666667) internal successors, (111), 91 states have internal predecessors, (111), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 01:19:28,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 123 transitions. [2024-11-09 01:19:28,567 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 123 transitions. Word has length 15 [2024-11-09 01:19:28,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:19:28,568 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 123 transitions. [2024-11-09 01:19:28,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:19:28,568 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 123 transitions. [2024-11-09 01:19:28,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 01:19:28,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:19:28,569 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:19:28,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 01:19:28,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 01:19:28,770 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:19:28,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:19:28,771 INFO L85 PathProgramCache]: Analyzing trace with hash 982078532, now seen corresponding path program 1 times [2024-11-09 01:19:28,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:19:28,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692685840] [2024-11-09 01:19:28,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:28,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:19:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:19:28,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:19:28,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:19:28,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692685840] [2024-11-09 01:19:28,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692685840] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:19:28,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419590565] [2024-11-09 01:19:28,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:28,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:19:28,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:19:28,901 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:19:28,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 01:19:28,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:19:28,958 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:19:28,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:19:29,012 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:19:29,012 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:19:29,148 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:19:29,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419590565] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:19:29,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2136198649] [2024-11-09 01:19:29,176 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2024-11-09 01:19:29,176 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:19:29,182 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:19:29,189 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:19:29,190 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:19:29,858 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 44 for LOIs [2024-11-09 01:19:29,879 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:19:29,925 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:19:31,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2136198649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:19:31,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:19:31,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 4, 4] total 16 [2024-11-09 01:19:31,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393641711] [2024-11-09 01:19:31,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:19:31,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 01:19:31,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:19:31,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 01:19:31,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-09 01:19:31,359 INFO L87 Difference]: Start difference. First operand 100 states and 123 transitions. Second operand has 12 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 01:19:31,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:19:31,937 INFO L93 Difference]: Finished difference Result 106 states and 128 transitions. [2024-11-09 01:19:31,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 01:19:31,938 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 25 [2024-11-09 01:19:31,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:19:31,939 INFO L225 Difference]: With dead ends: 106 [2024-11-09 01:19:31,939 INFO L226 Difference]: Without dead ends: 104 [2024-11-09 01:19:31,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 59 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-09 01:19:31,941 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 74 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:19:31,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 70 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 01:19:31,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-09 01:19:31,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-11-09 01:19:31,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 75 states have (on average 1.52) internal successors, (114), 94 states have internal predecessors, (114), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 01:19:31,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 126 transitions. [2024-11-09 01:19:31,969 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 126 transitions. Word has length 25 [2024-11-09 01:19:31,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:19:31,969 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 126 transitions. [2024-11-09 01:19:31,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 01:19:31,970 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 126 transitions. [2024-11-09 01:19:31,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 01:19:31,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:19:31,971 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:19:31,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 01:19:32,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-09 01:19:32,176 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:19:32,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:19:32,177 INFO L85 PathProgramCache]: Analyzing trace with hash 981770692, now seen corresponding path program 1 times [2024-11-09 01:19:32,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:19:32,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870468806] [2024-11-09 01:19:32,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:32,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:19:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:19:32,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:19:32,288 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:19:32,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870468806] [2024-11-09 01:19:32,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870468806] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:19:32,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375535716] [2024-11-09 01:19:32,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:32,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:19:32,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:19:32,291 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:19:32,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 01:19:32,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:19:32,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:19:32,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:19:32,419 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:19:32,419 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:19:32,522 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:19:32,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375535716] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:19:32,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1756155650] [2024-11-09 01:19:32,527 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2024-11-09 01:19:32,527 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:19:32,528 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:19:32,528 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:19:32,528 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:19:32,901 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 44 for LOIs [2024-11-09 01:19:32,909 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:19:32,937 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:19:34,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1756155650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:19:34,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:19:34,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 4, 4] total 16 [2024-11-09 01:19:34,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713644998] [2024-11-09 01:19:34,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:19:34,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 01:19:34,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:19:34,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 01:19:34,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2024-11-09 01:19:34,235 INFO L87 Difference]: Start difference. First operand 104 states and 126 transitions. Second operand has 12 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 01:19:34,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:19:34,832 INFO L93 Difference]: Finished difference Result 110 states and 132 transitions. [2024-11-09 01:19:34,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 01:19:34,833 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 25 [2024-11-09 01:19:34,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:19:34,834 INFO L225 Difference]: With dead ends: 110 [2024-11-09 01:19:34,834 INFO L226 Difference]: Without dead ends: 108 [2024-11-09 01:19:34,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 59 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2024-11-09 01:19:34,836 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 80 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:19:34,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 67 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 01:19:34,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-09 01:19:34,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-09 01:19:34,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 79 states have (on average 1.4936708860759493) internal successors, (118), 98 states have internal predecessors, (118), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 01:19:34,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 130 transitions. [2024-11-09 01:19:34,869 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 130 transitions. Word has length 25 [2024-11-09 01:19:34,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:19:34,869 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 130 transitions. [2024-11-09 01:19:34,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 01:19:34,870 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 130 transitions. [2024-11-09 01:19:34,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 01:19:34,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:19:34,871 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:19:34,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 01:19:35,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:19:35,072 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:19:35,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:19:35,073 INFO L85 PathProgramCache]: Analyzing trace with hash -796525974, now seen corresponding path program 1 times [2024-11-09 01:19:35,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:19:35,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903625259] [2024-11-09 01:19:35,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:35,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:19:35,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:19:35,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [436864670] [2024-11-09 01:19:35,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:35,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:19:35,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:19:35,113 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:19:35,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 01:19:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:19:35,181 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 01:19:35,183 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:19:35,398 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:19:35,399 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:19:35,664 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:19:35,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903625259] [2024-11-09 01:19:35,665 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:19:35,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436864670] [2024-11-09 01:19:35,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436864670] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:19:35,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [882295420] [2024-11-09 01:19:35,668 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 01:19:35,668 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:19:35,669 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:19:35,669 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:19:35,670 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:19:37,218 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-09 01:19:37,247 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:19:37,282 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:19:41,074 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2400#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~y2~0#1| 0) (exists ((|v_ULTIMATE.start_main_~x2~0#1_39| Int) (|v_ULTIMATE.start_main_~y1~0#1_50| Int)) (and (<= |v_ULTIMATE.start_main_~y1~0#1_50| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_50|) (<= (+ (* |v_ULTIMATE.start_main_~x2~0#1_39| |v_ULTIMATE.start_main_~y1~0#1_50|) 2147483649) 0) (<= 0 (+ |v_ULTIMATE.start_main_~x2~0#1_39| 2147483648)))) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:19:41,074 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:19:41,074 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:19:41,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-09 01:19:41,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420933640] [2024-11-09 01:19:41,075 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 01:19:41,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:19:41,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:19:41,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:19:41,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=592, Unknown=0, NotChecked=0, Total=756 [2024-11-09 01:19:41,077 INFO L87 Difference]: Start difference. First operand 108 states and 130 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:19:41,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:19:41,291 INFO L93 Difference]: Finished difference Result 116 states and 133 transitions. [2024-11-09 01:19:41,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 01:19:41,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2024-11-09 01:19:41,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:19:41,293 INFO L225 Difference]: With dead ends: 116 [2024-11-09 01:19:41,293 INFO L226 Difference]: Without dead ends: 109 [2024-11-09 01:19:41,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=175, Invalid=637, Unknown=0, NotChecked=0, Total=812 [2024-11-09 01:19:41,295 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 84 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:19:41,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 36 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:19:41,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-09 01:19:41,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2024-11-09 01:19:41,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 80 states have (on average 1.375) internal successors, (110), 94 states have internal predecessors, (110), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 01:19:41,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 122 transitions. [2024-11-09 01:19:41,313 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 122 transitions. Word has length 28 [2024-11-09 01:19:41,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:19:41,313 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 122 transitions. [2024-11-09 01:19:41,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:19:41,314 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 122 transitions. [2024-11-09 01:19:41,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 01:19:41,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:19:41,315 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:19:41,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 01:19:41,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:19:41,516 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:19:41,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:19:41,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1077498629, now seen corresponding path program 1 times [2024-11-09 01:19:41,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:19:41,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905167456] [2024-11-09 01:19:41,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:41,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:19:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:19:41,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [606149641] [2024-11-09 01:19:41,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:41,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:19:41,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:19:41,538 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:19:41,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 01:19:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:19:41,607 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 01:19:41,609 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:19:41,798 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:19:41,799 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:19:42,310 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:19:42,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905167456] [2024-11-09 01:19:42,311 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:19:42,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606149641] [2024-11-09 01:19:42,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606149641] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:19:42,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [917176152] [2024-11-09 01:19:42,314 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 01:19:42,315 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:19:42,315 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:19:42,315 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:19:42,316 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:19:43,340 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-09 01:19:43,353 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:19:43,371 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:19:46,453 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2802#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~y2~0#1| 0) (exists ((|v_ULTIMATE.start_main_~x2~0#1_40| Int) (|v_ULTIMATE.start_main_~y1~0#1_57| Int)) (and (<= |v_ULTIMATE.start_main_~y1~0#1_57| 2147483647) (<= |v_ULTIMATE.start_main_~x2~0#1_40| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_57|) (<= 2147483648 (* |v_ULTIMATE.start_main_~x2~0#1_40| |v_ULTIMATE.start_main_~y1~0#1_57|)))) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:19:46,453 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:19:46,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:19:46,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-09 01:19:46,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693637055] [2024-11-09 01:19:46,454 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 01:19:46,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:19:46,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:19:46,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:19:46,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2024-11-09 01:19:46,461 INFO L87 Difference]: Start difference. First operand 104 states and 122 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:19:46,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:19:46,704 INFO L93 Difference]: Finished difference Result 154 states and 181 transitions. [2024-11-09 01:19:46,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:19:46,705 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2024-11-09 01:19:46,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:19:46,706 INFO L225 Difference]: With dead ends: 154 [2024-11-09 01:19:46,706 INFO L226 Difference]: Without dead ends: 151 [2024-11-09 01:19:46,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2024-11-09 01:19:46,708 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 80 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:19:46,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 81 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:19:46,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-09 01:19:46,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 140. [2024-11-09 01:19:46,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 114 states have (on average 1.3859649122807018) internal successors, (158), 128 states have internal predecessors, (158), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 01:19:46,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 174 transitions. [2024-11-09 01:19:46,727 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 174 transitions. Word has length 29 [2024-11-09 01:19:46,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:19:46,727 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 174 transitions. [2024-11-09 01:19:46,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:19:46,728 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 174 transitions. [2024-11-09 01:19:46,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 01:19:46,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:19:46,729 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:19:46,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 01:19:46,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:19:46,933 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:19:46,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:19:46,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1023093162, now seen corresponding path program 1 times [2024-11-09 01:19:46,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:19:46,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572784145] [2024-11-09 01:19:46,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:46,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:19:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:19:47,094 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:19:47,095 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:19:47,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572784145] [2024-11-09 01:19:47,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572784145] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:19:47,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198185636] [2024-11-09 01:19:47,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:47,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:19:47,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:19:47,098 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:19:47,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 01:19:47,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:19:47,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:19:47,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:19:47,332 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:19:47,333 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:19:47,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198185636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:19:47,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:19:47,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-09 01:19:47,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236631846] [2024-11-09 01:19:47,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:19:47,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:19:47,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:19:47,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:19:47,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-09 01:19:47,336 INFO L87 Difference]: Start difference. First operand 140 states and 174 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:19:47,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:19:47,550 INFO L93 Difference]: Finished difference Result 140 states and 174 transitions. [2024-11-09 01:19:47,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:19:47,551 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2024-11-09 01:19:47,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:19:47,552 INFO L225 Difference]: With dead ends: 140 [2024-11-09 01:19:47,552 INFO L226 Difference]: Without dead ends: 138 [2024-11-09 01:19:47,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-09 01:19:47,554 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 28 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:19:47,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 46 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:19:47,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-09 01:19:47,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 135. [2024-11-09 01:19:47,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 111 states have (on average 1.3783783783783783) internal successors, (153), 123 states have internal predecessors, (153), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 01:19:47,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 169 transitions. [2024-11-09 01:19:47,570 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 169 transitions. Word has length 30 [2024-11-09 01:19:47,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:19:47,571 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 169 transitions. [2024-11-09 01:19:47,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:19:47,571 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 169 transitions. [2024-11-09 01:19:47,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 01:19:47,572 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:19:47,573 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:19:47,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-09 01:19:47,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 01:19:47,774 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:19:47,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:19:47,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1651116899, now seen corresponding path program 1 times [2024-11-09 01:19:47,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:19:47,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266720775] [2024-11-09 01:19:47,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:47,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:19:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:19:48,007 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:19:48,008 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:19:48,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266720775] [2024-11-09 01:19:48,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266720775] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:19:48,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472199601] [2024-11-09 01:19:48,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:48,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:19:48,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:19:48,011 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:19:48,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 01:19:48,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:19:48,071 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:19:48,072 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:19:48,187 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:19:48,188 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:19:48,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472199601] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:19:48,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [572384162] [2024-11-09 01:19:48,389 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 01:19:48,390 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:19:48,390 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:19:48,391 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:19:48,391 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:19:49,476 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 31 for LOIs [2024-11-09 01:19:49,482 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:19:49,503 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:19:50,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [572384162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:19:50,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:19:50,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [8, 3] total 26 [2024-11-09 01:19:50,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175477099] [2024-11-09 01:19:50,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:19:50,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 01:19:50,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:19:50,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 01:19:50,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=690, Unknown=0, NotChecked=0, Total=812 [2024-11-09 01:19:50,784 INFO L87 Difference]: Start difference. First operand 135 states and 169 transitions. Second operand has 18 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 01:19:52,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:19:52,596 INFO L93 Difference]: Finished difference Result 140 states and 169 transitions. [2024-11-09 01:19:52,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 01:19:52,596 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 31 [2024-11-09 01:19:52,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:19:52,598 INFO L225 Difference]: With dead ends: 140 [2024-11-09 01:19:52,598 INFO L226 Difference]: Without dead ends: 135 [2024-11-09 01:19:52,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 54 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=275, Invalid=1131, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 01:19:52,600 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 177 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:19:52,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 49 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 01:19:52,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-09 01:19:52,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 131. [2024-11-09 01:19:52,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 107 states have (on average 1.3457943925233644) internal successors, (144), 119 states have internal predecessors, (144), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 01:19:52,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 160 transitions. [2024-11-09 01:19:52,614 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 160 transitions. Word has length 31 [2024-11-09 01:19:52,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:19:52,615 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 160 transitions. [2024-11-09 01:19:52,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 01:19:52,615 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 160 transitions. [2024-11-09 01:19:52,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-09 01:19:52,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:19:52,617 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:19:52,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-09 01:19:52,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:19:52,818 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:19:52,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:19:52,819 INFO L85 PathProgramCache]: Analyzing trace with hash -823865042, now seen corresponding path program 1 times [2024-11-09 01:19:52,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:19:52,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525474599] [2024-11-09 01:19:52,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:52,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:19:52,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:19:53,173 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:19:53,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:19:53,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525474599] [2024-11-09 01:19:53,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525474599] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:19:53,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981158002] [2024-11-09 01:19:53,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:53,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:19:53,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:19:53,177 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:19:53,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 01:19:53,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:19:53,232 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 01:19:53,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:19:53,370 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:19:53,371 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:19:53,686 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:19:53,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981158002] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:19:53,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1405256518] [2024-11-09 01:19:53,688 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 01:19:53,689 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:19:53,689 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:19:53,689 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:19:53,689 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:19:54,843 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-09 01:19:54,858 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:19:54,879 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:19:57,051 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4256#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~y1~0#1_65| Int) (|v_ULTIMATE.start_main_~x2~0#1_42| Int)) (and (<= 0 |v_ULTIMATE.start_main_~y1~0#1_65|) (<= 0 (+ (* |v_ULTIMATE.start_main_~x2~0#1_42| |v_ULTIMATE.start_main_~y1~0#1_65|) 2147483648)) (<= |v_ULTIMATE.start_main_~y1~0#1_65| 2147483647) (<= (+ (* |v_ULTIMATE.start_main_~x2~0#1_42| |v_ULTIMATE.start_main_~y1~0#1_65|) 1) 0))) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:19:57,051 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:19:57,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:19:57,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2024-11-09 01:19:57,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306211438] [2024-11-09 01:19:57,052 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:19:57,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 01:19:57,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:19:57,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 01:19:57,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=955, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 01:19:57,054 INFO L87 Difference]: Start difference. First operand 131 states and 160 transitions. Second operand has 15 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 14 states have internal predecessors, (44), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 01:19:57,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:19:57,749 INFO L93 Difference]: Finished difference Result 134 states and 162 transitions. [2024-11-09 01:19:57,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 01:19:57,749 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 14 states have internal predecessors, (44), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 32 [2024-11-09 01:19:57,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:19:57,751 INFO L225 Difference]: With dead ends: 134 [2024-11-09 01:19:57,751 INFO L226 Difference]: Without dead ends: 131 [2024-11-09 01:19:57,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 65 SyntacticMatches, 5 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 611 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=269, Invalid=1537, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 01:19:57,753 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 131 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:19:57,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 62 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 01:19:57,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-09 01:19:57,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2024-11-09 01:19:57,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 107 states have (on average 1.2710280373831775) internal successors, (136), 116 states have internal predecessors, (136), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 01:19:57,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 152 transitions. [2024-11-09 01:19:57,775 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 152 transitions. Word has length 32 [2024-11-09 01:19:57,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:19:57,777 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 152 transitions. [2024-11-09 01:19:57,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 14 states have internal predecessors, (44), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 01:19:57,777 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 152 transitions. [2024-11-09 01:19:57,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 01:19:57,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:19:57,780 INFO L215 NwaCegarLoop]: trace histogram [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 01:19:57,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-09 01:19:57,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-09 01:19:57,985 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:19:57,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:19:57,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1880406017, now seen corresponding path program 1 times [2024-11-09 01:19:57,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:19:57,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906243893] [2024-11-09 01:19:57,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:57,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:19:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:19:58,053 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:19:58,054 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:19:58,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906243893] [2024-11-09 01:19:58,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906243893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:19:58,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:19:58,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:19:58,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214892126] [2024-11-09 01:19:58,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:19:58,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:19:58,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:19:58,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:19:58,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:19:58,057 INFO L87 Difference]: Start difference. First operand 128 states and 152 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:19:58,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:19:58,274 INFO L93 Difference]: Finished difference Result 129 states and 152 transitions. [2024-11-09 01:19:58,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:19:58,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2024-11-09 01:19:58,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:19:58,276 INFO L225 Difference]: With dead ends: 129 [2024-11-09 01:19:58,276 INFO L226 Difference]: Without dead ends: 128 [2024-11-09 01:19:58,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 01:19:58,277 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:19:58,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:19:58,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-09 01:19:58,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2024-11-09 01:19:58,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 107 states have (on average 1.2429906542056075) internal successors, (133), 116 states have internal predecessors, (133), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 01:19:58,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 149 transitions. [2024-11-09 01:19:58,295 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 149 transitions. Word has length 33 [2024-11-09 01:19:58,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:19:58,296 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 149 transitions. [2024-11-09 01:19:58,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:19:58,296 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 149 transitions. [2024-11-09 01:19:58,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 01:19:58,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:19:58,297 INFO L215 NwaCegarLoop]: trace histogram [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 01:19:58,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 01:19:58,298 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:19:58,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:19:58,298 INFO L85 PathProgramCache]: Analyzing trace with hash 229987529, now seen corresponding path program 1 times [2024-11-09 01:19:58,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:19:58,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903371955] [2024-11-09 01:19:58,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:58,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:19:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:19:58,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [721167999] [2024-11-09 01:19:58,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:58,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:19:58,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:19:58,314 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:19:58,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 01:19:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:19:58,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 01:19:58,400 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:19:58,631 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:19:58,631 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:19:58,749 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:19:58,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:19:58,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903371955] [2024-11-09 01:19:58,750 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:19:58,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721167999] [2024-11-09 01:19:58,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721167999] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:19:58,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1642908290] [2024-11-09 01:19:58,752 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 01:19:58,752 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:19:58,753 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:19:58,753 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:19:58,753 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:19:59,490 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-09 01:19:59,499 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:19:59,522 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:20:01,622 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5099#(exists ((|v_ULTIMATE.start_main_~y3~0#1_63| Int) (|v_ULTIMATE.start_main_~y2~0#1_79| Int) (|v_ULTIMATE.start_main_~y1~0#1_73| Int) (|v_ULTIMATE.start_main_~x2~0#1_43| Int)) (and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= (* |v_ULTIMATE.start_main_~x2~0#1_43| |v_ULTIMATE.start_main_~y1~0#1_73|) 2147483647) (<= 1 |#StackHeapBarrier|) (= |v_ULTIMATE.start_main_~y2~0#1_79| 0) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_73|) (<= 2147483648 (+ (* |v_ULTIMATE.start_main_~x2~0#1_43| |v_ULTIMATE.start_main_~y1~0#1_73|) |v_ULTIMATE.start_main_~y3~0#1_63|)) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647) (<= |v_ULTIMATE.start_main_~y3~0#1_63| 2147483647)))' at error location [2024-11-09 01:20:01,622 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:20:01,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:20:01,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-09 01:20:01,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877922751] [2024-11-09 01:20:01,623 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 01:20:01,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 01:20:01,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:20:01,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 01:20:01,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=730, Unknown=0, NotChecked=0, Total=870 [2024-11-09 01:20:01,625 INFO L87 Difference]: Start difference. First operand 128 states and 149 transitions. Second operand has 11 states, 10 states have (on average 4.9) internal successors, (49), 11 states have internal predecessors, (49), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 01:20:02,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:20:02,291 INFO L93 Difference]: Finished difference Result 213 states and 249 transitions. [2024-11-09 01:20:02,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 01:20:02,291 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.9) internal successors, (49), 11 states have internal predecessors, (49), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 33 [2024-11-09 01:20:02,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:20:02,292 INFO L225 Difference]: With dead ends: 213 [2024-11-09 01:20:02,293 INFO L226 Difference]: Without dead ends: 141 [2024-11-09 01:20:02,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=192, Invalid=1140, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 01:20:02,294 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 85 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:20:02,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 44 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 01:20:02,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-09 01:20:02,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 139. [2024-11-09 01:20:02,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 118 states have (on average 1.2033898305084745) internal successors, (142), 126 states have internal predecessors, (142), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 01:20:02,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 160 transitions. [2024-11-09 01:20:02,320 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 160 transitions. Word has length 33 [2024-11-09 01:20:02,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:20:02,322 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 160 transitions. [2024-11-09 01:20:02,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.9) internal successors, (49), 11 states have internal predecessors, (49), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 01:20:02,322 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 160 transitions. [2024-11-09 01:20:02,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 01:20:02,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:20:02,324 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:20:02,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-09 01:20:02,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-09 01:20:02,526 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:20:02,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:20:02,527 INFO L85 PathProgramCache]: Analyzing trace with hash 566079496, now seen corresponding path program 1 times [2024-11-09 01:20:02,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:20:02,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25190161] [2024-11-09 01:20:02,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:20:02,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:20:02,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:20:02,666 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 01:20:02,667 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:20:02,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25190161] [2024-11-09 01:20:02,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25190161] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:20:02,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324969005] [2024-11-09 01:20:02,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:20:02,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:20:02,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:20:02,670 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:20:02,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 01:20:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:20:02,723 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:20:02,724 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:20:02,773 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 01:20:02,773 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:20:02,841 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 01:20:02,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324969005] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:20:02,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [968151717] [2024-11-09 01:20:02,843 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 01:20:02,843 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:20:02,845 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:20:02,845 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:20:02,845 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:20:03,811 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 31 for LOIs [2024-11-09 01:20:03,822 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:20:03,852 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:20:05,099 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5771#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x2~0#1| 2147483647) (= |ULTIMATE.start_main_~y1~0#1| 0) (<= 0 (+ |ULTIMATE.start_main_~x2~0#1| 2147483648)) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:20:05,099 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:20:05,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:20:05,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-09 01:20:05,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318616526] [2024-11-09 01:20:05,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:20:05,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 01:20:05,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:20:05,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 01:20:05,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=466, Unknown=0, NotChecked=0, Total=552 [2024-11-09 01:20:05,103 INFO L87 Difference]: Start difference. First operand 139 states and 160 transitions. Second operand has 7 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-09 01:20:05,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:20:05,242 INFO L93 Difference]: Finished difference Result 305 states and 370 transitions. [2024-11-09 01:20:05,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:20:05,242 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 39 [2024-11-09 01:20:05,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:20:05,244 INFO L225 Difference]: With dead ends: 305 [2024-11-09 01:20:05,245 INFO L226 Difference]: Without dead ends: 303 [2024-11-09 01:20:05,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 94 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=86, Invalid=466, Unknown=0, NotChecked=0, Total=552 [2024-11-09 01:20:05,246 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 51 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:20:05,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 94 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:20:05,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-09 01:20:05,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 275. [2024-11-09 01:20:05,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 246 states have (on average 1.2113821138211383) internal successors, (298), 253 states have internal predecessors, (298), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 01:20:05,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 334 transitions. [2024-11-09 01:20:05,277 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 334 transitions. Word has length 39 [2024-11-09 01:20:05,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:20:05,277 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 334 transitions. [2024-11-09 01:20:05,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-09 01:20:05,278 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 334 transitions. [2024-11-09 01:20:05,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 01:20:05,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:20:05,278 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:20:05,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-09 01:20:05,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 01:20:05,479 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:20:05,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:20:05,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1459403096, now seen corresponding path program 1 times [2024-11-09 01:20:05,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:20:05,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348066536] [2024-11-09 01:20:05,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:20:05,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:20:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:20:05,520 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 01:20:05,521 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:20:05,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348066536] [2024-11-09 01:20:05,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348066536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:20:05,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:20:05,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:20:05,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525145443] [2024-11-09 01:20:05,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:20:05,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:20:05,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:20:05,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:20:05,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:20:05,524 INFO L87 Difference]: Start difference. First operand 275 states and 334 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 01:20:05,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:20:05,752 INFO L93 Difference]: Finished difference Result 275 states and 334 transitions. [2024-11-09 01:20:05,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:20:05,756 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), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2024-11-09 01:20:05,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:20:05,758 INFO L225 Difference]: With dead ends: 275 [2024-11-09 01:20:05,758 INFO L226 Difference]: Without dead ends: 270 [2024-11-09 01:20:05,759 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 01:20:05,760 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 9 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:20:05,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 33 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:20:05,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-09 01:20:05,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2024-11-09 01:20:05,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 242 states have (on average 1.177685950413223) internal successors, (285), 248 states have internal predecessors, (285), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 01:20:05,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 321 transitions. [2024-11-09 01:20:05,810 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 321 transitions. Word has length 41 [2024-11-09 01:20:05,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:20:05,810 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 321 transitions. [2024-11-09 01:20:05,810 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), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 01:20:05,810 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 321 transitions. [2024-11-09 01:20:05,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 01:20:05,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:20:05,813 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:20:05,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 01:20:05,813 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:20:05,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:20:05,814 INFO L85 PathProgramCache]: Analyzing trace with hash -757711680, now seen corresponding path program 1 times [2024-11-09 01:20:05,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:20:05,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677910524] [2024-11-09 01:20:05,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:20:05,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:20:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:20:05,865 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 01:20:05,866 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:20:05,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677910524] [2024-11-09 01:20:05,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677910524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:20:05,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:20:05,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:20:05,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478667871] [2024-11-09 01:20:05,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:20:05,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:20:05,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:20:05,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:20:05,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:20:05,869 INFO L87 Difference]: Start difference. First operand 270 states and 321 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 01:20:05,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:20:05,933 INFO L93 Difference]: Finished difference Result 270 states and 321 transitions. [2024-11-09 01:20:05,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:20:05,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 44 [2024-11-09 01:20:05,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:20:05,936 INFO L225 Difference]: With dead ends: 270 [2024-11-09 01:20:05,936 INFO L226 Difference]: Without dead ends: 268 [2024-11-09 01:20:05,937 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 01:20:05,937 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 8 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:20:05,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 70 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:20:05,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-09 01:20:05,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2024-11-09 01:20:05,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 242 states have (on average 1.1363636363636365) internal successors, (275), 246 states have internal predecessors, (275), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 01:20:05,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 311 transitions. [2024-11-09 01:20:05,972 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 311 transitions. Word has length 44 [2024-11-09 01:20:05,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:20:05,972 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 311 transitions. [2024-11-09 01:20:05,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 01:20:05,973 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 311 transitions. [2024-11-09 01:20:05,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 01:20:05,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:20:05,974 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:20:05,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 01:20:05,974 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:20:05,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:20:05,975 INFO L85 PathProgramCache]: Analyzing trace with hash 359601559, now seen corresponding path program 2 times [2024-11-09 01:20:05,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:20:05,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348276283] [2024-11-09 01:20:05,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:20:05,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:20:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:20:05,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [982082673] [2024-11-09 01:20:05,990 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:20:05,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:20:05,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:20:05,993 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:20:05,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 01:20:06,053 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-09 01:20:06,053 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:20:06,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 01:20:06,055 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:20:06,402 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 01:20:06,402 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:20:06,741 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:20:06,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348276283] [2024-11-09 01:20:06,741 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:20:06,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982082673] [2024-11-09 01:20:06,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982082673] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:20:06,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1932667192] [2024-11-09 01:20:06,744 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 01:20:06,744 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:20:06,745 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:20:06,745 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:20:06,745 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:20:07,446 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-09 01:20:07,454 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:20:07,467 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:20:10,223 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7889#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~y2~0#1| 0) (exists ((|v_ULTIMATE.start_main_~y1~0#1_81| Int) (|v_ULTIMATE.start_main_~x2~0#1_44| Int)) (and (<= 0 |v_ULTIMATE.start_main_~y1~0#1_81|) (<= 2147483648 (* |v_ULTIMATE.start_main_~x2~0#1_44| |v_ULTIMATE.start_main_~y1~0#1_81|)) (<= |v_ULTIMATE.start_main_~y1~0#1_81| 2147483647) (<= |v_ULTIMATE.start_main_~x2~0#1_44| 2147483647))) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:20:10,223 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:20:10,223 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:20:10,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-09 01:20:10,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84580501] [2024-11-09 01:20:10,224 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 01:20:10,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 01:20:10,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:20:10,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 01:20:10,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1156, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 01:20:10,226 INFO L87 Difference]: Start difference. First operand 268 states and 311 transitions. Second operand has 14 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 01:20:10,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:20:10,992 INFO L93 Difference]: Finished difference Result 374 states and 439 transitions. [2024-11-09 01:20:10,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 01:20:10,993 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 47 [2024-11-09 01:20:10,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:20:10,994 INFO L225 Difference]: With dead ends: 374 [2024-11-09 01:20:10,994 INFO L226 Difference]: Without dead ends: 252 [2024-11-09 01:20:10,996 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=371, Invalid=2179, Unknown=0, NotChecked=0, Total=2550 [2024-11-09 01:20:10,997 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 93 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:20:10,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 64 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 01:20:10,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2024-11-09 01:20:11,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2024-11-09 01:20:11,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 227 states have (on average 1.13215859030837) internal successors, (257), 231 states have internal predecessors, (257), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 01:20:11,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 291 transitions. [2024-11-09 01:20:11,032 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 291 transitions. Word has length 47 [2024-11-09 01:20:11,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:20:11,032 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 291 transitions. [2024-11-09 01:20:11,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 01:20:11,033 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 291 transitions. [2024-11-09 01:20:11,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 01:20:11,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:20:11,034 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:20:11,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-09 01:20:11,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:20:11,235 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:20:11,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:20:11,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1662240247, now seen corresponding path program 1 times [2024-11-09 01:20:11,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:20:11,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150571407] [2024-11-09 01:20:11,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:20:11,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:20:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:20:11,441 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 01:20:11,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:20:11,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150571407] [2024-11-09 01:20:11,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150571407] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:20:11,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23702232] [2024-11-09 01:20:11,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:20:11,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:20:11,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:20:11,444 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:20:11,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 01:20:11,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:20:11,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 01:20:11,521 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:20:11,641 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 01:20:11,642 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:20:11,853 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 01:20:11,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23702232] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:20:11,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [440998986] [2024-11-09 01:20:11,855 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:20:11,855 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:20:11,856 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:20:11,856 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:20:11,856 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:20:12,750 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 01:20:12,779 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:20:12,793 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:20:15,913 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9063#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~y1~0#1_90| Int) (|v_ULTIMATE.start_main_~x2~0#1_47| Int)) (and (<= 0 |v_ULTIMATE.start_main_~y1~0#1_90|) (<= (* |v_ULTIMATE.start_main_~x2~0#1_47| |v_ULTIMATE.start_main_~y1~0#1_90|) 2147483647) (<= 1 (* |v_ULTIMATE.start_main_~x2~0#1_47| |v_ULTIMATE.start_main_~y1~0#1_90|)))) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:20:15,913 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:20:15,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:20:15,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-09 01:20:15,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109520013] [2024-11-09 01:20:15,914 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:20:15,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 01:20:15,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:20:15,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 01:20:15,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=1107, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 01:20:15,916 INFO L87 Difference]: Start difference. First operand 252 states and 291 transitions. Second operand has 13 states, 11 states have (on average 9.636363636363637) internal successors, (106), 13 states have internal predecessors, (106), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-09 01:20:16,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:20:16,783 INFO L93 Difference]: Finished difference Result 574 states and 654 transitions. [2024-11-09 01:20:16,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-09 01:20:16,783 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 9.636363636363637) internal successors, (106), 13 states have internal predecessors, (106), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 67 [2024-11-09 01:20:16,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:20:16,787 INFO L225 Difference]: With dead ends: 574 [2024-11-09 01:20:16,787 INFO L226 Difference]: Without dead ends: 573 [2024-11-09 01:20:16,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 164 SyntacticMatches, 8 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 977 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=345, Invalid=2105, Unknown=0, NotChecked=0, Total=2450 [2024-11-09 01:20:16,789 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 94 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:20:16,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 95 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 01:20:16,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2024-11-09 01:20:16,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 531. [2024-11-09 01:20:16,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 492 states have (on average 1.0934959349593496) internal successors, (538), 496 states have internal predecessors, (538), 31 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-09 01:20:16,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 600 transitions. [2024-11-09 01:20:16,861 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 600 transitions. Word has length 67 [2024-11-09 01:20:16,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:20:16,861 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 600 transitions. [2024-11-09 01:20:16,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 9.636363636363637) internal successors, (106), 13 states have internal predecessors, (106), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-09 01:20:16,862 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 600 transitions. [2024-11-09 01:20:16,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-09 01:20:16,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:20:16,869 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:20:16,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-09 01:20:17,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:20:17,074 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:20:17,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:20:17,075 INFO L85 PathProgramCache]: Analyzing trace with hash -2038689881, now seen corresponding path program 1 times [2024-11-09 01:20:17,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:20:17,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784175445] [2024-11-09 01:20:17,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:20:17,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:20:17,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:20:17,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1897460677] [2024-11-09 01:20:17,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:20:17,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:20:17,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:20:17,109 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:20:17,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 01:20:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:20:17,193 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 01:20:17,199 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:20:17,817 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 2 proven. 94 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 01:20:17,817 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:20:18,368 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:20:18,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784175445] [2024-11-09 01:20:18,369 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:20:18,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897460677] [2024-11-09 01:20:18,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897460677] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:20:18,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2106536977] [2024-11-09 01:20:18,371 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:20:18,371 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:20:18,372 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:20:18,372 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:20:18,372 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:20:19,664 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 01:20:19,683 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:20:19,703 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:20:23,710 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10665#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_99| Int) (|v_ULTIMATE.start_main_~x2~0#1_50| Int)) (and (<= |v_ULTIMATE.start_main_~x2~0#1_50| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_99|) (<= 2147483648 (* |v_ULTIMATE.start_main_~x2~0#1_50| |v_ULTIMATE.start_main_~y1~0#1_99|)))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:20:23,710 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:20:23,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:20:23,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-09 01:20:23,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578314143] [2024-11-09 01:20:23,711 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 01:20:23,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 01:20:23,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:20:23,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 01:20:23,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1402, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 01:20:23,712 INFO L87 Difference]: Start difference. First operand 531 states and 600 transitions. Second operand has 14 states, 12 states have (on average 5.666666666666667) internal successors, (68), 14 states have internal predecessors, (68), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-09 01:20:24,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:20:24,342 INFO L93 Difference]: Finished difference Result 660 states and 754 transitions. [2024-11-09 01:20:24,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 01:20:24,343 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.666666666666667) internal successors, (68), 14 states have internal predecessors, (68), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 83 [2024-11-09 01:20:24,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:20:24,347 INFO L225 Difference]: With dead ends: 660 [2024-11-09 01:20:24,347 INFO L226 Difference]: Without dead ends: 655 [2024-11-09 01:20:24,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 129 SyntacticMatches, 10 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 769 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=186, Invalid=1620, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 01:20:24,349 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 61 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:20:24,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 164 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 01:20:24,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-11-09 01:20:24,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 506. [2024-11-09 01:20:24,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 468 states have (on average 1.0940170940170941) internal successors, (512), 472 states have internal predecessors, (512), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-09 01:20:24,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 572 transitions. [2024-11-09 01:20:24,423 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 572 transitions. Word has length 83 [2024-11-09 01:20:24,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:20:24,423 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 572 transitions. [2024-11-09 01:20:24,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.666666666666667) internal successors, (68), 14 states have internal predecessors, (68), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-09 01:20:24,424 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 572 transitions. [2024-11-09 01:20:24,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-09 01:20:24,426 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:20:24,426 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:20:24,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-09 01:20:24,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:20:24,630 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:20:24,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:20:24,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1855841824, now seen corresponding path program 2 times [2024-11-09 01:20:24,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:20:24,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88271118] [2024-11-09 01:20:24,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:20:24,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:20:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:20:24,850 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 01:20:24,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:20:24,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88271118] [2024-11-09 01:20:24,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88271118] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:20:24,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596852470] [2024-11-09 01:20:24,852 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:20:24,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:20:24,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:20:24,854 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:20:24,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 01:20:24,934 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 01:20:24,934 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:20:24,936 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 01:20:24,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:20:25,075 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 01:20:25,075 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:20:25,310 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 01:20:25,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596852470] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:20:25,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [163442057] [2024-11-09 01:20:25,312 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 01:20:25,313 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:20:25,314 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:20:25,314 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:20:25,314 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:20:26,314 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 31 for LOIs [2024-11-09 01:20:26,320 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:20:26,340 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:20:27,685 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12581#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x2~0#1| 2147483647) (= |ULTIMATE.start_main_~y1~0#1| 0) (<= 0 (+ |ULTIMATE.start_main_~x2~0#1| 2147483648)) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:20:27,685 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:20:27,685 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:20:27,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-11-09 01:20:27,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589212954] [2024-11-09 01:20:27,686 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:20:27,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 01:20:27,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:20:27,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 01:20:27,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=727, Unknown=0, NotChecked=0, Total=870 [2024-11-09 01:20:27,688 INFO L87 Difference]: Start difference. First operand 506 states and 572 transitions. Second operand has 13 states, 12 states have (on average 13.25) internal successors, (159), 13 states have internal predecessors, (159), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-09 01:20:28,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:20:28,063 INFO L93 Difference]: Finished difference Result 901 states and 1043 transitions. [2024-11-09 01:20:28,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 01:20:28,064 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 13.25) internal successors, (159), 13 states have internal predecessors, (159), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 93 [2024-11-09 01:20:28,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:20:28,069 INFO L225 Difference]: With dead ends: 901 [2024-11-09 01:20:28,069 INFO L226 Difference]: Without dead ends: 900 [2024-11-09 01:20:28,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 250 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=143, Invalid=727, Unknown=0, NotChecked=0, Total=870 [2024-11-09 01:20:28,071 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 110 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:20:28,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 138 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 01:20:28,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2024-11-09 01:20:28,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 863. [2024-11-09 01:20:28,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 802 states have (on average 1.1159600997506234) internal successors, (895), 806 states have internal predecessors, (895), 53 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-09 01:20:28,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1001 transitions. [2024-11-09 01:20:28,184 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1001 transitions. Word has length 93 [2024-11-09 01:20:28,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:20:28,185 INFO L471 AbstractCegarLoop]: Abstraction has 863 states and 1001 transitions. [2024-11-09 01:20:28,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 13.25) internal successors, (159), 13 states have internal predecessors, (159), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-09 01:20:28,186 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1001 transitions. [2024-11-09 01:20:28,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-09 01:20:28,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:20:28,188 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:20:28,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-09 01:20:28,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:20:28,390 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:20:28,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:20:28,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1187358959, now seen corresponding path program 2 times [2024-11-09 01:20:28,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:20:28,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146548884] [2024-11-09 01:20:28,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:20:28,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:20:28,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:20:28,645 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 47 proven. 104 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 01:20:28,646 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:20:28,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146548884] [2024-11-09 01:20:28,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146548884] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:20:28,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520000534] [2024-11-09 01:20:28,646 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:20:28,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:20:28,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:20:28,649 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:20:28,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 01:20:28,795 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-09 01:20:28,795 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:20:28,796 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 01:20:28,799 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:20:29,083 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-09 01:20:29,084 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:20:29,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520000534] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:20:29,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1972538883] [2024-11-09 01:20:29,563 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:20:29,563 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:20:29,563 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:20:29,564 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:20:29,564 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:20:30,476 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 01:20:30,487 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:20:30,508 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:20:33,570 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14942#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_108| Int) (|v_ULTIMATE.start_main_~x2~0#1_51| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_108| |v_ULTIMATE.start_main_~x2~0#1_51|)) (<= |v_ULTIMATE.start_main_~x2~0#1_51| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_108|))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:20:33,570 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:20:33,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:20:33,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 13 [2024-11-09 01:20:33,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544824668] [2024-11-09 01:20:33,571 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 01:20:33,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 01:20:33,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:20:33,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 01:20:33,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1326, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 01:20:33,573 INFO L87 Difference]: Start difference. First operand 863 states and 1001 transitions. Second operand has 13 states, 13 states have (on average 10.461538461538462) internal successors, (136), 13 states have internal predecessors, (136), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-09 01:20:34,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:20:34,652 INFO L93 Difference]: Finished difference Result 1630 states and 1924 transitions. [2024-11-09 01:20:34,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-09 01:20:34,653 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.461538461538462) internal successors, (136), 13 states have internal predecessors, (136), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 101 [2024-11-09 01:20:34,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:20:34,656 INFO L225 Difference]: With dead ends: 1630 [2024-11-09 01:20:34,656 INFO L226 Difference]: Without dead ends: 1076 [2024-11-09 01:20:34,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 179 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 914 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=262, Invalid=2600, Unknown=0, NotChecked=0, Total=2862 [2024-11-09 01:20:34,659 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 161 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 01:20:34,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 434 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 01:20:34,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2024-11-09 01:20:34,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 904. [2024-11-09 01:20:34,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 840 states have (on average 1.1035714285714286) internal successors, (927), 844 states have internal predecessors, (927), 56 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-09 01:20:34,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1039 transitions. [2024-11-09 01:20:34,766 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1039 transitions. Word has length 101 [2024-11-09 01:20:34,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:20:34,766 INFO L471 AbstractCegarLoop]: Abstraction has 904 states and 1039 transitions. [2024-11-09 01:20:34,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.461538461538462) internal successors, (136), 13 states have internal predecessors, (136), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-09 01:20:34,767 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1039 transitions. [2024-11-09 01:20:34,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-09 01:20:34,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:20:34,769 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:20:34,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-09 01:20:34,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-09 01:20:34,974 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:20:34,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:20:34,974 INFO L85 PathProgramCache]: Analyzing trace with hash -590962249, now seen corresponding path program 3 times [2024-11-09 01:20:34,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:20:34,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901430379] [2024-11-09 01:20:34,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:20:34,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:20:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:20:35,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1166144023] [2024-11-09 01:20:35,016 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 01:20:35,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:20:35,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:20:35,019 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:20:35,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-09 01:20:35,110 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 01:20:35,110 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:20:35,112 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 01:20:35,114 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:20:35,823 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 3 proven. 228 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 01:20:35,823 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:20:36,299 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:20:36,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901430379] [2024-11-09 01:20:36,299 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:20:36,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166144023] [2024-11-09 01:20:36,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166144023] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:20:36,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1951573707] [2024-11-09 01:20:36,301 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:20:36,301 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:20:36,302 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:20:36,302 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:20:36,302 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:20:37,154 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 01:20:37,165 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:20:37,185 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:20:41,090 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '18266#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~x2~0#1_52| Int) (|v_ULTIMATE.start_main_~y1~0#1_115| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_115| |v_ULTIMATE.start_main_~x2~0#1_52|)) (<= |v_ULTIMATE.start_main_~x2~0#1_52| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_115|))) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:20:41,090 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:20:41,090 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:20:41,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-09 01:20:41,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050800833] [2024-11-09 01:20:41,091 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 01:20:41,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 01:20:41,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:20:41,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 01:20:41,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=1553, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 01:20:41,093 INFO L87 Difference]: Start difference. First operand 904 states and 1039 transitions. Second operand has 16 states, 14 states have (on average 7.0) internal successors, (98), 16 states have internal predecessors, (98), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-09 01:20:42,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:20:42,313 INFO L93 Difference]: Finished difference Result 1087 states and 1270 transitions. [2024-11-09 01:20:42,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 01:20:42,314 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 7.0) internal successors, (98), 16 states have internal predecessors, (98), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 119 [2024-11-09 01:20:42,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:20:42,318 INFO L225 Difference]: With dead ends: 1087 [2024-11-09 01:20:42,318 INFO L226 Difference]: Without dead ends: 1082 [2024-11-09 01:20:42,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 195 SyntacticMatches, 14 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 851 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=176, Invalid=1630, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 01:20:42,320 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 28 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:20:42,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 375 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 01:20:42,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2024-11-09 01:20:42,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 904. [2024-11-09 01:20:42,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 840 states have (on average 1.1035714285714286) internal successors, (927), 844 states have internal predecessors, (927), 56 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-09 01:20:42,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1039 transitions. [2024-11-09 01:20:42,465 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1039 transitions. Word has length 119 [2024-11-09 01:20:42,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:20:42,466 INFO L471 AbstractCegarLoop]: Abstraction has 904 states and 1039 transitions. [2024-11-09 01:20:42,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 7.0) internal successors, (98), 16 states have internal predecessors, (98), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-09 01:20:42,467 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1039 transitions. [2024-11-09 01:20:42,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-09 01:20:42,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:20:42,469 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:20:42,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-09 01:20:42,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-09 01:20:42,671 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:20:42,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:20:42,671 INFO L85 PathProgramCache]: Analyzing trace with hash 151373825, now seen corresponding path program 4 times [2024-11-09 01:20:42,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:20:42,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029013457] [2024-11-09 01:20:42,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:20:42,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:20:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:20:42,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [553004606] [2024-11-09 01:20:42,706 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 01:20:42,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:20:42,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:20:42,709 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:20:42,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 01:20:42,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:20:42,788 INFO L255 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 01:20:42,791 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:20:44,107 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 5 proven. 223 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-09 01:20:44,108 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:20:45,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:20:45,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029013457] [2024-11-09 01:20:45,047 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:20:45,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553004606] [2024-11-09 01:20:45,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553004606] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:20:45,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1125813646] [2024-11-09 01:20:45,049 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:20:45,049 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:20:45,050 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:20:45,050 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:20:45,050 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:20:46,112 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 01:20:46,130 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:20:46,151 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:20:50,929 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '20960#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~x2~0#1_55| Int) (|v_ULTIMATE.start_main_~y1~0#1_124| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_124| |v_ULTIMATE.start_main_~x2~0#1_55|)) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_124|) (<= |v_ULTIMATE.start_main_~x2~0#1_55| 2147483647))) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:20:50,929 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:20:50,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:20:50,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2024-11-09 01:20:50,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267187794] [2024-11-09 01:20:50,930 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 01:20:50,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 01:20:50,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:20:50,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 01:20:50,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=282, Invalid=2268, Unknown=0, NotChecked=0, Total=2550 [2024-11-09 01:20:50,932 INFO L87 Difference]: Start difference. First operand 904 states and 1039 transitions. Second operand has 23 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 21 states have internal predecessors, (99), 8 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 01:20:52,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:20:52,761 INFO L93 Difference]: Finished difference Result 1087 states and 1272 transitions. [2024-11-09 01:20:52,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-09 01:20:52,762 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 21 states have internal predecessors, (99), 8 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Word has length 119 [2024-11-09 01:20:52,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:20:52,767 INFO L225 Difference]: With dead ends: 1087 [2024-11-09 01:20:52,767 INFO L226 Difference]: Without dead ends: 1082 [2024-11-09 01:20:52,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 185 SyntacticMatches, 15 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2013 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=484, Invalid=3676, Unknown=0, NotChecked=0, Total=4160 [2024-11-09 01:20:52,770 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 115 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 01:20:52,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 186 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 816 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 01:20:52,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2024-11-09 01:20:52,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 936. [2024-11-09 01:20:52,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 870 states have (on average 1.1022988505747127) internal successors, (959), 874 states have internal predecessors, (959), 58 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-09 01:20:52,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1075 transitions. [2024-11-09 01:20:52,905 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1075 transitions. Word has length 119 [2024-11-09 01:20:52,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:20:52,906 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1075 transitions. [2024-11-09 01:20:52,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 21 states have internal predecessors, (99), 8 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 01:20:52,907 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1075 transitions. [2024-11-09 01:20:52,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-09 01:20:52,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:20:52,910 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:20:52,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-09 01:20:53,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-09 01:20:53,114 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:20:53,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:20:53,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1054132481, now seen corresponding path program 5 times [2024-11-09 01:20:53,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:20:53,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452971780] [2024-11-09 01:20:53,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:20:53,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:20:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:20:53,419 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 83 proven. 234 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-09 01:20:53,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:20:53,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452971780] [2024-11-09 01:20:53,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452971780] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:20:53,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119530696] [2024-11-09 01:20:53,420 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:20:53,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:20:53,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:20:53,423 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:20:53,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-09 01:20:53,570 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 01:20:53,570 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:20:53,572 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 01:20:53,575 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:20:53,961 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 233 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-09 01:20:53,961 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:20:54,495 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 233 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-09 01:20:54,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119530696] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:20:54,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [546397429] [2024-11-09 01:20:54,497 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:20:54,497 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:20:54,497 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:20:54,497 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:20:54,498 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:20:55,533 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 01:20:55,565 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:20:55,588 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:20:59,275 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '24136#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~x2~0#1_56| Int) (|v_ULTIMATE.start_main_~y1~0#1_134| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_134| |v_ULTIMATE.start_main_~x2~0#1_56|)) (<= |v_ULTIMATE.start_main_~x2~0#1_56| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_134|))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:20:59,275 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:20:59,275 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:20:59,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 22 [2024-11-09 01:20:59,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044839478] [2024-11-09 01:20:59,276 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:20:59,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 01:20:59,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:20:59,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 01:20:59,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1794, Unknown=0, NotChecked=0, Total=1980 [2024-11-09 01:20:59,278 INFO L87 Difference]: Start difference. First operand 936 states and 1075 transitions. Second operand has 22 states, 22 states have (on average 11.363636363636363) internal successors, (250), 22 states have internal predecessors, (250), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-09 01:21:05,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:21:05,559 INFO L93 Difference]: Finished difference Result 2000 states and 2380 transitions. [2024-11-09 01:21:05,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-11-09 01:21:05,559 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.363636363636363) internal successors, (250), 22 states have internal predecessors, (250), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 137 [2024-11-09 01:21:05,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:21:05,567 INFO L225 Difference]: With dead ends: 2000 [2024-11-09 01:21:05,567 INFO L226 Difference]: Without dead ends: 1792 [2024-11-09 01:21:05,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 369 SyntacticMatches, 7 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2829 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=860, Invalid=7696, Unknown=0, NotChecked=0, Total=8556 [2024-11-09 01:21:05,573 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 584 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 2487 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 2556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:21:05,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 1033 Invalid, 2556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2487 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-09 01:21:05,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1792 states. [2024-11-09 01:21:05,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1792 to 1228. [2024-11-09 01:21:05,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1228 states, 1146 states have (on average 1.0732984293193717) internal successors, (1230), 1149 states have internal predecessors, (1230), 75 states have call successors, (75), 3 states have call predecessors, (75), 3 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-09 01:21:05,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1380 transitions. [2024-11-09 01:21:05,769 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1380 transitions. Word has length 137 [2024-11-09 01:21:05,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:21:05,770 INFO L471 AbstractCegarLoop]: Abstraction has 1228 states and 1380 transitions. [2024-11-09 01:21:05,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.363636363636363) internal successors, (250), 22 states have internal predecessors, (250), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-09 01:21:05,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1380 transitions. [2024-11-09 01:21:05,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-09 01:21:05,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:21:05,773 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:21:05,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-09 01:21:05,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-09 01:21:05,978 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:21:05,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:21:05,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1301422313, now seen corresponding path program 2 times [2024-11-09 01:21:05,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:21:05,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590144122] [2024-11-09 01:21:05,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:21:05,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:21:06,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:21:06,413 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 6 proven. 347 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 01:21:06,414 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:21:06,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590144122] [2024-11-09 01:21:06,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590144122] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:21:06,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203487849] [2024-11-09 01:21:06,415 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:21:06,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:21:06,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:21:06,417 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:21:06,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-09 01:21:06,519 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-09 01:21:06,519 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:21:06,521 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 01:21:06,524 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:21:06,784 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 6 proven. 347 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 01:21:06,784 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:21:07,298 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 6 proven. 347 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 01:21:07,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203487849] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:21:07,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1056295264] [2024-11-09 01:21:07,300 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:21:07,300 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:21:07,300 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:21:07,301 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:21:07,301 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:21:08,299 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 01:21:08,310 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:21:08,322 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:21:11,615 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '28746#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~x2~0#1_59| Int) (|v_ULTIMATE.start_main_~y1~0#1_143| Int)) (and (<= (* |v_ULTIMATE.start_main_~y1~0#1_143| |v_ULTIMATE.start_main_~x2~0#1_59|) 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_143|) (<= 1 (* |v_ULTIMATE.start_main_~y1~0#1_143| |v_ULTIMATE.start_main_~x2~0#1_59|)))) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:21:11,615 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:21:11,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:21:11,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 20 [2024-11-09 01:21:11,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274089356] [2024-11-09 01:21:11,616 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:21:11,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-09 01:21:11,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:21:11,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-09 01:21:11,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=1647, Unknown=0, NotChecked=0, Total=1892 [2024-11-09 01:21:11,619 INFO L87 Difference]: Start difference. First operand 1228 states and 1380 transitions. Second operand has 21 states, 19 states have (on average 11.894736842105264) internal successors, (226), 21 states have internal predecessors, (226), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-09 01:21:13,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:21:13,706 INFO L93 Difference]: Finished difference Result 3295 states and 3735 transitions. [2024-11-09 01:21:13,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-09 01:21:13,707 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 11.894736842105264) internal successors, (226), 21 states have internal predecessors, (226), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 139 [2024-11-09 01:21:13,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:21:13,718 INFO L225 Difference]: With dead ends: 3295 [2024-11-09 01:21:13,718 INFO L226 Difference]: Without dead ends: 3294 [2024-11-09 01:21:13,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 376 SyntacticMatches, 8 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2309 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=1117, Invalid=4889, Unknown=0, NotChecked=0, Total=6006 [2024-11-09 01:21:13,722 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 208 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 01:21:13,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 117 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 01:21:13,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3294 states. [2024-11-09 01:21:14,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3294 to 3234. [2024-11-09 01:21:14,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3234 states, 3036 states have (on average 1.0487483530961792) internal successors, (3184), 3039 states have internal predecessors, (3184), 191 states have call successors, (191), 3 states have call predecessors, (191), 3 states have return successors, (191), 191 states have call predecessors, (191), 191 states have call successors, (191) [2024-11-09 01:21:14,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3234 states to 3234 states and 3566 transitions. [2024-11-09 01:21:14,177 INFO L78 Accepts]: Start accepts. Automaton has 3234 states and 3566 transitions. Word has length 139 [2024-11-09 01:21:14,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:21:14,177 INFO L471 AbstractCegarLoop]: Abstraction has 3234 states and 3566 transitions. [2024-11-09 01:21:14,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 11.894736842105264) internal successors, (226), 21 states have internal predecessors, (226), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-09 01:21:14,178 INFO L276 IsEmpty]: Start isEmpty. Operand 3234 states and 3566 transitions. [2024-11-09 01:21:14,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-09 01:21:14,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:21:14,181 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:21:14,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-09 01:21:14,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-09 01:21:14,386 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:21:14,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:21:14,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1142152027, now seen corresponding path program 6 times [2024-11-09 01:21:14,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:21:14,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022504011] [2024-11-09 01:21:14,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:21:14,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:21:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:21:14,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1763763935] [2024-11-09 01:21:14,415 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 01:21:14,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:21:14,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:21:14,420 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:21:14,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-09 01:21:14,540 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 01:21:14,540 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:21:14,542 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-09 01:21:14,546 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:21:16,405 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 7 proven. 409 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-09 01:21:16,406 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:21:17,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:21:17,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022504011] [2024-11-09 01:21:17,330 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:21:17,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763763935] [2024-11-09 01:21:17,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763763935] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:21:17,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [21715919] [2024-11-09 01:21:17,332 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:21:17,332 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:21:17,333 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:21:17,333 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:21:17,333 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:21:18,386 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 01:21:18,398 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:21:18,411 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:21:23,667 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '36720#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~x2~0#1_62| Int) (|v_ULTIMATE.start_main_~y1~0#1_152| Int)) (and (<= |v_ULTIMATE.start_main_~x2~0#1_62| 2147483647) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_152| |v_ULTIMATE.start_main_~x2~0#1_62|)) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_152|))) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:21:23,668 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:21:23,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:21:23,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2024-11-09 01:21:23,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488119729] [2024-11-09 01:21:23,668 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 01:21:23,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-09 01:21:23,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:21:23,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-09 01:21:23,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=2775, Unknown=0, NotChecked=0, Total=3080 [2024-11-09 01:21:23,671 INFO L87 Difference]: Start difference. First operand 3234 states and 3566 transitions. Second operand has 28 states, 24 states have (on average 5.375) internal successors, (129), 26 states have internal predecessors, (129), 10 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 01:21:29,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:21:29,324 INFO L93 Difference]: Finished difference Result 3392 states and 3741 transitions. [2024-11-09 01:21:29,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-11-09 01:21:29,325 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 24 states have (on average 5.375) internal successors, (129), 26 states have internal predecessors, (129), 10 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Word has length 155 [2024-11-09 01:21:29,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:21:29,338 INFO L225 Difference]: With dead ends: 3392 [2024-11-09 01:21:29,338 INFO L226 Difference]: Without dead ends: 3390 [2024-11-09 01:21:29,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 247 SyntacticMatches, 20 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5159 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=1450, Invalid=10760, Unknown=0, NotChecked=0, Total=12210 [2024-11-09 01:21:29,342 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 309 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:21:29,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 214 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 01:21:29,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3390 states. [2024-11-09 01:21:29,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3390 to 3234. [2024-11-09 01:21:29,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3234 states, 3036 states have (on average 1.047760210803689) internal successors, (3181), 3039 states have internal predecessors, (3181), 191 states have call successors, (191), 3 states have call predecessors, (191), 3 states have return successors, (191), 191 states have call predecessors, (191), 191 states have call successors, (191) [2024-11-09 01:21:29,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3234 states to 3234 states and 3563 transitions. [2024-11-09 01:21:29,940 INFO L78 Accepts]: Start accepts. Automaton has 3234 states and 3563 transitions. Word has length 155 [2024-11-09 01:21:29,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:21:29,941 INFO L471 AbstractCegarLoop]: Abstraction has 3234 states and 3563 transitions. [2024-11-09 01:21:29,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 24 states have (on average 5.375) internal successors, (129), 26 states have internal predecessors, (129), 10 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 01:21:29,941 INFO L276 IsEmpty]: Start isEmpty. Operand 3234 states and 3563 transitions. [2024-11-09 01:21:29,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-09 01:21:29,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:21:29,946 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:21:29,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-09 01:21:30,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-09 01:21:30,151 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:21:30,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:21:30,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1837994275, now seen corresponding path program 7 times [2024-11-09 01:21:30,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:21:30,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079204487] [2024-11-09 01:21:30,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:21:30,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:21:30,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:21:30,436 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 135 proven. 304 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-11-09 01:21:30,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:21:30,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079204487] [2024-11-09 01:21:30,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079204487] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:21:30,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824321611] [2024-11-09 01:21:30,437 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 01:21:30,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:21:30,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:21:30,440 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:21:30,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-09 01:21:30,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:21:30,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 01:21:30,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:21:30,883 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 243 proven. 196 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-11-09 01:21:30,883 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:21:31,163 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 79 proven. 360 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-11-09 01:21:31,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824321611] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:21:31,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1781871967] [2024-11-09 01:21:31,166 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:21:31,166 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:21:31,166 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:21:31,166 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:21:31,166 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:21:32,032 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 01:21:32,040 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:21:32,052 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:21:36,253 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '45362#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_162| Int) (|v_ULTIMATE.start_main_~x2~0#1_63| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_162| |v_ULTIMATE.start_main_~x2~0#1_63|)) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_162|) (<= |v_ULTIMATE.start_main_~x2~0#1_63| 2147483647))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:21:36,253 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:21:36,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:21:36,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2024-11-09 01:21:36,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574676442] [2024-11-09 01:21:36,254 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:21:36,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 01:21:36,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:21:36,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 01:21:36,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=1103, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 01:21:36,255 INFO L87 Difference]: Start difference. First operand 3234 states and 3563 transitions. Second operand has 13 states, 13 states have (on average 13.461538461538462) internal successors, (175), 13 states have internal predecessors, (175), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-09 01:21:36,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:21:36,800 INFO L93 Difference]: Finished difference Result 3993 states and 4414 transitions. [2024-11-09 01:21:36,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 01:21:36,801 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 13.461538461538462) internal successors, (175), 13 states have internal predecessors, (175), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 173 [2024-11-09 01:21:36,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:21:36,808 INFO L225 Difference]: With dead ends: 3993 [2024-11-09 01:21:36,808 INFO L226 Difference]: Without dead ends: 3365 [2024-11-09 01:21:36,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 464 SyntacticMatches, 27 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1097 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=175, Invalid=1231, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 01:21:36,812 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 11 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:21:36,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 160 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:21:36,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3365 states. [2024-11-09 01:21:37,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3365 to 3220. [2024-11-09 01:21:37,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3220 states, 3024 states have (on average 1.0456349206349207) internal successors, (3162), 3027 states have internal predecessors, (3162), 189 states have call successors, (189), 3 states have call predecessors, (189), 3 states have return successors, (189), 189 states have call predecessors, (189), 189 states have call successors, (189) [2024-11-09 01:21:37,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3220 states to 3220 states and 3540 transitions. [2024-11-09 01:21:37,319 INFO L78 Accepts]: Start accepts. Automaton has 3220 states and 3540 transitions. Word has length 173 [2024-11-09 01:21:37,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:21:37,320 INFO L471 AbstractCegarLoop]: Abstraction has 3220 states and 3540 transitions. [2024-11-09 01:21:37,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 13.461538461538462) internal successors, (175), 13 states have internal predecessors, (175), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-09 01:21:37,320 INFO L276 IsEmpty]: Start isEmpty. Operand 3220 states and 3540 transitions. [2024-11-09 01:21:37,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-09 01:21:37,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:21:37,326 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:21:37,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-09 01:21:37,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:21:37,527 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:21:37,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:21:37,528 INFO L85 PathProgramCache]: Analyzing trace with hash -433639209, now seen corresponding path program 8 times [2024-11-09 01:21:37,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:21:37,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495824212] [2024-11-09 01:21:37,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:21:37,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:21:37,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:21:37,989 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 304 proven. 382 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-09 01:21:37,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:21:37,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495824212] [2024-11-09 01:21:37,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495824212] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:21:37,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818983188] [2024-11-09 01:21:37,990 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:21:37,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:21:37,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:21:37,992 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:21:37,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-09 01:21:38,116 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-09 01:21:38,117 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:21:38,119 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 01:21:38,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:21:38,869 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 0 proven. 646 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-09 01:21:38,869 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:21:39,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818983188] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:21:39,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2084559745] [2024-11-09 01:21:39,568 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:21:39,568 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:21:39,569 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:21:39,569 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:21:39,569 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:21:40,497 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 01:21:40,514 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:21:40,537 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:21:46,510 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '54147#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_170| Int) (|v_ULTIMATE.start_main_~x2~0#1_64| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_170| |v_ULTIMATE.start_main_~x2~0#1_64|)) (<= |v_ULTIMATE.start_main_~x2~0#1_64| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_170|))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:21:46,510 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:21:46,510 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:21:46,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 23 [2024-11-09 01:21:46,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953782283] [2024-11-09 01:21:46,511 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 01:21:46,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 01:21:46,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:21:46,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 01:21:46,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=2147, Unknown=0, NotChecked=0, Total=2352 [2024-11-09 01:21:46,512 INFO L87 Difference]: Start difference. First operand 3220 states and 3540 transitions. Second operand has 23 states, 23 states have (on average 12.434782608695652) internal successors, (286), 23 states have internal predecessors, (286), 19 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2024-11-09 01:21:49,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:21:49,610 INFO L93 Difference]: Finished difference Result 4287 states and 4728 transitions. [2024-11-09 01:21:49,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-09 01:21:49,611 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 12.434782608695652) internal successors, (286), 23 states have internal predecessors, (286), 19 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) Word has length 191 [2024-11-09 01:21:49,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:21:49,624 INFO L225 Difference]: With dead ends: 4287 [2024-11-09 01:21:49,625 INFO L226 Difference]: Without dead ends: 3568 [2024-11-09 01:21:49,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 349 SyntacticMatches, 10 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2246 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=489, Invalid=6153, Unknown=0, NotChecked=0, Total=6642 [2024-11-09 01:21:49,628 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 280 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 3144 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 3176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 3144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 01:21:49,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 1289 Invalid, 3176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 3144 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 01:21:49,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3568 states. [2024-11-09 01:21:50,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3568 to 3040. [2024-11-09 01:21:50,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3040 states, 2855 states have (on average 1.0388791593695272) internal successors, (2966), 2858 states have internal predecessors, (2966), 178 states have call successors, (178), 3 states have call predecessors, (178), 3 states have return successors, (178), 178 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-09 01:21:50,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3040 states to 3040 states and 3322 transitions. [2024-11-09 01:21:50,140 INFO L78 Accepts]: Start accepts. Automaton has 3040 states and 3322 transitions. Word has length 191 [2024-11-09 01:21:50,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:21:50,141 INFO L471 AbstractCegarLoop]: Abstraction has 3040 states and 3322 transitions. [2024-11-09 01:21:50,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.434782608695652) internal successors, (286), 23 states have internal predecessors, (286), 19 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2024-11-09 01:21:50,142 INFO L276 IsEmpty]: Start isEmpty. Operand 3040 states and 3322 transitions. [2024-11-09 01:21:50,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-09 01:21:50,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:21:50,147 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:21:50,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-09 01:21:50,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:21:50,351 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:21:50,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:21:50,352 INFO L85 PathProgramCache]: Analyzing trace with hash -304821835, now seen corresponding path program 9 times [2024-11-09 01:21:50,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:21:50,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504658064] [2024-11-09 01:21:50,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:21:50,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:21:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:21:50,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [238563211] [2024-11-09 01:21:50,402 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 01:21:50,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:21:50,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:21:50,405 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:21:50,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-09 01:21:50,543 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 01:21:50,544 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:21:50,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-09 01:21:50,552 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:21:53,510 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 9 proven. 651 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-09 01:21:53,510 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:21:54,674 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:21:54,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504658064] [2024-11-09 01:21:54,674 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:21:54,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238563211] [2024-11-09 01:21:54,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238563211] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:21:54,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1280436298] [2024-11-09 01:21:54,676 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:21:54,676 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:21:54,676 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:21:54,677 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:21:54,677 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:21:55,506 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 01:21:55,518 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:21:55,537 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:22:01,477 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '63131#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~x2~0#1_67| Int) (|v_ULTIMATE.start_main_~y1~0#1_179| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_179| |v_ULTIMATE.start_main_~x2~0#1_67|)) (<= |v_ULTIMATE.start_main_~x2~0#1_67| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_179|))) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:22:01,477 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:22:01,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:22:01,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2024-11-09 01:22:01,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967023417] [2024-11-09 01:22:01,478 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 01:22:01,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-09 01:22:01,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:22:01,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-09 01:22:01,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=396, Invalid=3026, Unknown=0, NotChecked=0, Total=3422 [2024-11-09 01:22:01,480 INFO L87 Difference]: Start difference. First operand 3040 states and 3322 transitions. Second operand has 31 states, 27 states have (on average 5.888888888888889) internal successors, (159), 29 states have internal predecessors, (159), 12 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 01:22:05,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:22:05,802 INFO L93 Difference]: Finished difference Result 3244 states and 3542 transitions. [2024-11-09 01:22:05,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-09 01:22:05,803 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 27 states have (on average 5.888888888888889) internal successors, (159), 29 states have internal predecessors, (159), 12 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) Word has length 191 [2024-11-09 01:22:05,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:22:05,817 INFO L225 Difference]: With dead ends: 3244 [2024-11-09 01:22:05,817 INFO L226 Difference]: Without dead ends: 3242 [2024-11-09 01:22:05,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 311 SyntacticMatches, 25 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4210 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=1105, Invalid=7085, Unknown=0, NotChecked=0, Total=8190 [2024-11-09 01:22:05,820 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 204 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 1190 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:22:05,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 212 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1190 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 01:22:05,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3242 states. [2024-11-09 01:22:06,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3242 to 3040. [2024-11-09 01:22:06,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3040 states, 2855 states have (on average 1.0381786339754817) internal successors, (2964), 2858 states have internal predecessors, (2964), 178 states have call successors, (178), 3 states have call predecessors, (178), 3 states have return successors, (178), 178 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-09 01:22:06,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3040 states to 3040 states and 3320 transitions. [2024-11-09 01:22:06,249 INFO L78 Accepts]: Start accepts. Automaton has 3040 states and 3320 transitions. Word has length 191 [2024-11-09 01:22:06,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:22:06,250 INFO L471 AbstractCegarLoop]: Abstraction has 3040 states and 3320 transitions. [2024-11-09 01:22:06,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 27 states have (on average 5.888888888888889) internal successors, (159), 29 states have internal predecessors, (159), 12 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 01:22:06,251 INFO L276 IsEmpty]: Start isEmpty. Operand 3040 states and 3320 transitions. [2024-11-09 01:22:06,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-09 01:22:06,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:22:06,256 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:22:06,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-09 01:22:06,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-09 01:22:06,460 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:22:06,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:22:06,461 INFO L85 PathProgramCache]: Analyzing trace with hash 605681552, now seen corresponding path program 3 times [2024-11-09 01:22:06,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:22:06,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482514631] [2024-11-09 01:22:06,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:22:06,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:22:06,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:22:06,902 INFO L134 CoverageAnalysis]: Checked inductivity of 942 backedges. 0 proven. 830 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-09 01:22:06,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:22:06,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482514631] [2024-11-09 01:22:06,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482514631] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:22:06,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422050068] [2024-11-09 01:22:06,903 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 01:22:06,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:22:06,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:22:06,905 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:22:06,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-09 01:22:07,024 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 01:22:07,024 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:22:07,027 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 01:22:07,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:22:07,346 INFO L134 CoverageAnalysis]: Checked inductivity of 942 backedges. 0 proven. 830 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-09 01:22:07,346 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:22:08,003 INFO L134 CoverageAnalysis]: Checked inductivity of 942 backedges. 0 proven. 830 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-09 01:22:08,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422050068] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:22:08,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [475655427] [2024-11-09 01:22:08,005 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 01:22:08,005 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:22:08,005 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:22:08,005 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:22:08,005 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:22:08,719 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 31 for LOIs [2024-11-09 01:22:08,723 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:22:08,736 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:22:10,508 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '71522#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x2~0#1| 2147483647) (= |ULTIMATE.start_main_~y1~0#1| 0) (<= 0 (+ |ULTIMATE.start_main_~x2~0#1| 2147483648)) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:22:10,509 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:22:10,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:22:10,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2024-11-09 01:22:10,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246981890] [2024-11-09 01:22:10,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:22:10,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-09 01:22:10,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:22:10,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-09 01:22:10,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=365, Invalid=1357, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 01:22:10,512 INFO L87 Difference]: Start difference. First operand 3040 states and 3320 transitions. Second operand has 25 states, 24 states have (on average 14.125) internal successors, (339), 25 states have internal predecessors, (339), 24 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 24 states have call predecessors, (25), 24 states have call successors, (25) [2024-11-09 01:22:11,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:22:11,446 INFO L93 Difference]: Finished difference Result 3578 states and 3967 transitions. [2024-11-09 01:22:11,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-09 01:22:11,447 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 14.125) internal successors, (339), 25 states have internal predecessors, (339), 24 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 24 states have call predecessors, (25), 24 states have call successors, (25) Word has length 201 [2024-11-09 01:22:11,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:22:11,462 INFO L225 Difference]: With dead ends: 3578 [2024-11-09 01:22:11,462 INFO L226 Difference]: Without dead ends: 3577 [2024-11-09 01:22:11,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 613 GetRequests, 562 SyntacticMatches, 11 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1130 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=365, Invalid=1357, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 01:22:11,465 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 17 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:22:11,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 202 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 01:22:11,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3577 states. [2024-11-09 01:22:11,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3577 to 3577. [2024-11-09 01:22:11,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3577 states, 3359 states have (on average 1.0443584400119084) internal successors, (3508), 3362 states have internal predecessors, (3508), 211 states have call successors, (211), 3 states have call predecessors, (211), 3 states have return successors, (211), 211 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-09 01:22:11,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3577 states to 3577 states and 3930 transitions. [2024-11-09 01:22:11,921 INFO L78 Accepts]: Start accepts. Automaton has 3577 states and 3930 transitions. Word has length 201 [2024-11-09 01:22:11,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:22:11,922 INFO L471 AbstractCegarLoop]: Abstraction has 3577 states and 3930 transitions. [2024-11-09 01:22:11,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 14.125) internal successors, (339), 25 states have internal predecessors, (339), 24 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 24 states have call predecessors, (25), 24 states have call successors, (25) [2024-11-09 01:22:11,922 INFO L276 IsEmpty]: Start isEmpty. Operand 3577 states and 3930 transitions. [2024-11-09 01:22:11,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-09 01:22:11,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:22:11,929 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:22:11,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-09 01:22:12,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-09 01:22:12,133 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:22:12,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:22:12,134 INFO L85 PathProgramCache]: Analyzing trace with hash -825242905, now seen corresponding path program 10 times [2024-11-09 01:22:12,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:22:12,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275987505] [2024-11-09 01:22:12,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:22:12,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:22:12,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:22:12,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1146 backedges. 418 proven. 594 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-09 01:22:12,724 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:22:12,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275987505] [2024-11-09 01:22:12,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275987505] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:22:12,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41942403] [2024-11-09 01:22:12,725 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 01:22:12,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:22:12,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:22:12,728 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:22:12,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-09 01:22:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:22:12,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 01:22:12,855 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:22:13,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1146 backedges. 460 proven. 552 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-09 01:22:13,577 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:22:14,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1146 backedges. 460 proven. 552 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-09 01:22:14,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41942403] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:22:14,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [572571728] [2024-11-09 01:22:14,224 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:22:14,225 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:22:14,225 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:22:14,225 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:22:14,226 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:22:15,173 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 01:22:15,183 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:22:15,196 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:22:21,788 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '80986#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_188| Int) (|v_ULTIMATE.start_main_~x2~0#1_68| Int)) (and (<= |v_ULTIMATE.start_main_~x2~0#1_68| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_188|) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_188| |v_ULTIMATE.start_main_~x2~0#1_68|)))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:22:21,788 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:22:21,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:22:21,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 32 [2024-11-09 01:22:21,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858841306] [2024-11-09 01:22:21,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:22:21,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-09 01:22:21,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:22:21,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-09 01:22:21,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=384, Invalid=2586, Unknown=0, NotChecked=0, Total=2970 [2024-11-09 01:22:21,793 INFO L87 Difference]: Start difference. First operand 3577 states and 3930 transitions. Second operand has 32 states, 32 states have (on average 13.4375) internal successors, (430), 32 states have internal predecessors, (430), 29 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) [2024-11-09 01:22:23,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:22:23,849 INFO L93 Difference]: Finished difference Result 5116 states and 5689 transitions. [2024-11-09 01:22:23,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-09 01:22:23,850 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 13.4375) internal successors, (430), 32 states have internal predecessors, (430), 29 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) Word has length 227 [2024-11-09 01:22:23,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:22:23,864 INFO L225 Difference]: With dead ends: 5116 [2024-11-09 01:22:23,864 INFO L226 Difference]: Without dead ends: 4459 [2024-11-09 01:22:23,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 712 GetRequests, 610 SyntacticMatches, 31 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3255 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=700, Invalid=4556, Unknown=0, NotChecked=0, Total=5256 [2024-11-09 01:22:23,869 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 139 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:22:23,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 508 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1056 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 01:22:23,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4459 states. [2024-11-09 01:22:24,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4459 to 3694. [2024-11-09 01:22:24,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3694 states, 3468 states have (on average 1.044405997693195) internal successors, (3622), 3471 states have internal predecessors, (3622), 219 states have call successors, (219), 3 states have call predecessors, (219), 3 states have return successors, (219), 219 states have call predecessors, (219), 219 states have call successors, (219) [2024-11-09 01:22:24,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3694 states to 3694 states and 4060 transitions. [2024-11-09 01:22:24,556 INFO L78 Accepts]: Start accepts. Automaton has 3694 states and 4060 transitions. Word has length 227 [2024-11-09 01:22:24,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:22:24,557 INFO L471 AbstractCegarLoop]: Abstraction has 3694 states and 4060 transitions. [2024-11-09 01:22:24,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 13.4375) internal successors, (430), 32 states have internal predecessors, (430), 29 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) [2024-11-09 01:22:24,557 INFO L276 IsEmpty]: Start isEmpty. Operand 3694 states and 4060 transitions. [2024-11-09 01:22:24,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-09 01:22:24,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:22:24,563 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:22:24,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-09 01:22:24,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-09 01:22:24,768 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:22:24,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:22:24,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1152324273, now seen corresponding path program 11 times [2024-11-09 01:22:24,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:22:24,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135771796] [2024-11-09 01:22:24,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:22:24,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:22:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:22:24,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1222278537] [2024-11-09 01:22:24,818 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:22:24,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:22:24,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:22:24,820 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:22:24,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-09 01:22:25,015 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-11-09 01:22:25,015 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:22:25,018 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 01:22:25,023 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:22:25,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1118 backedges. 0 proven. 816 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2024-11-09 01:22:25,563 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:22:26,099 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:22:26,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135771796] [2024-11-09 01:22:26,099 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:22:26,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222278537] [2024-11-09 01:22:26,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222278537] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:22:26,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1202471901] [2024-11-09 01:22:26,101 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:22:26,101 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:22:26,102 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:22:26,102 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:22:26,102 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:22:27,026 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 01:22:27,038 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:22:27,058 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:22:31,123 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '91694#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_197| Int) (|v_ULTIMATE.start_main_~x2~0#1_69| Int)) (and (<= |v_ULTIMATE.start_main_~x2~0#1_69| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_197|) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_197| |v_ULTIMATE.start_main_~x2~0#1_69|)))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:22:31,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:22:31,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:22:31,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-09 01:22:31,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212679178] [2024-11-09 01:22:31,124 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 01:22:31,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 01:22:31,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:22:31,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 01:22:31,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=1117, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 01:22:31,126 INFO L87 Difference]: Start difference. First operand 3694 states and 4060 transitions. Second operand has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-09 01:22:32,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:22:32,887 INFO L93 Difference]: Finished difference Result 5316 states and 5879 transitions. [2024-11-09 01:22:32,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 01:22:32,888 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 227 [2024-11-09 01:22:32,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:22:32,901 INFO L225 Difference]: With dead ends: 5316 [2024-11-09 01:22:32,902 INFO L226 Difference]: Without dead ends: 4828 [2024-11-09 01:22:32,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 419 SyntacticMatches, 12 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 920 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=287, Invalid=2575, Unknown=0, NotChecked=0, Total=2862 [2024-11-09 01:22:32,905 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 138 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 01:22:32,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 366 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 01:22:32,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4828 states. [2024-11-09 01:22:33,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4828 to 4056. [2024-11-09 01:22:33,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4056 states, 3806 states have (on average 1.0496584340514976) internal successors, (3995), 3809 states have internal predecessors, (3995), 243 states have call successors, (243), 3 states have call predecessors, (243), 3 states have return successors, (243), 243 states have call predecessors, (243), 243 states have call successors, (243) [2024-11-09 01:22:33,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4056 states to 4056 states and 4481 transitions. [2024-11-09 01:22:33,575 INFO L78 Accepts]: Start accepts. Automaton has 4056 states and 4481 transitions. Word has length 227 [2024-11-09 01:22:33,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:22:33,576 INFO L471 AbstractCegarLoop]: Abstraction has 4056 states and 4481 transitions. [2024-11-09 01:22:33,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-09 01:22:33,576 INFO L276 IsEmpty]: Start isEmpty. Operand 4056 states and 4481 transitions. [2024-11-09 01:22:33,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-09 01:22:33,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:22:33,582 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:22:33,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-09 01:22:33,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-09 01:22:33,787 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:22:33,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:22:33,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1489562865, now seen corresponding path program 12 times [2024-11-09 01:22:33,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:22:33,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719954562] [2024-11-09 01:22:33,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:22:33,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:22:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:22:33,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1443119685] [2024-11-09 01:22:33,859 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 01:22:33,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:22:33,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:22:33,863 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:22:33,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-09 01:22:34,024 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 01:22:34,024 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:22:34,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-09 01:22:34,034 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:22:38,274 INFO L134 CoverageAnalysis]: Checked inductivity of 1082 backedges. 26 proven. 950 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-09 01:22:38,274 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:22:39,191 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:22:39,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719954562] [2024-11-09 01:22:39,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:22:39,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443119685] [2024-11-09 01:22:39,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443119685] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:22:39,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2128284236] [2024-11-09 01:22:39,193 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:22:39,193 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:22:39,194 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:22:39,194 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:22:39,194 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:22:40,013 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 01:22:40,024 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:22:40,037 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:22:45,509 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '103064#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_207| Int) (|v_ULTIMATE.start_main_~x2~0#1_72| Int)) (and (<= |v_ULTIMATE.start_main_~x2~0#1_72| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_207|) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_207| |v_ULTIMATE.start_main_~x2~0#1_72|)))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:22:45,510 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:22:45,510 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:22:45,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2024-11-09 01:22:45,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533187001] [2024-11-09 01:22:45,510 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 01:22:45,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-09 01:22:45,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:22:45,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-09 01:22:45,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=477, Invalid=3945, Unknown=0, NotChecked=0, Total=4422 [2024-11-09 01:22:45,513 INFO L87 Difference]: Start difference. First operand 4056 states and 4481 transitions. Second operand has 39 states, 35 states have (on average 5.4) internal successors, (189), 35 states have internal predecessors, (189), 14 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 01:22:51,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:22:51,955 INFO L93 Difference]: Finished difference Result 5201 states and 5762 transitions. [2024-11-09 01:22:51,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-09 01:22:51,956 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 35 states have (on average 5.4) internal successors, (189), 35 states have internal predecessors, (189), 14 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) Word has length 227 [2024-11-09 01:22:51,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:22:51,966 INFO L225 Difference]: With dead ends: 5201 [2024-11-09 01:22:51,967 INFO L226 Difference]: Without dead ends: 4527 [2024-11-09 01:22:51,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 388 SyntacticMatches, 12 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4891 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=1688, Invalid=11194, Unknown=0, NotChecked=0, Total=12882 [2024-11-09 01:22:51,971 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 381 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 1898 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:22:51,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 315 Invalid, 1979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1898 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-09 01:22:51,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4527 states. [2024-11-09 01:22:52,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4527 to 3905. [2024-11-09 01:22:52,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3905 states, 3664 states have (on average 1.050764192139738) internal successors, (3850), 3667 states have internal predecessors, (3850), 234 states have call successors, (234), 3 states have call predecessors, (234), 3 states have return successors, (234), 234 states have call predecessors, (234), 234 states have call successors, (234) [2024-11-09 01:22:52,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3905 states to 3905 states and 4318 transitions. [2024-11-09 01:22:52,596 INFO L78 Accepts]: Start accepts. Automaton has 3905 states and 4318 transitions. Word has length 227 [2024-11-09 01:22:52,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:22:52,601 INFO L471 AbstractCegarLoop]: Abstraction has 3905 states and 4318 transitions. [2024-11-09 01:22:52,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 35 states have (on average 5.4) internal successors, (189), 35 states have internal predecessors, (189), 14 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 01:22:52,602 INFO L276 IsEmpty]: Start isEmpty. Operand 3905 states and 4318 transitions. [2024-11-09 01:22:52,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-09 01:22:52,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:22:52,617 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:22:52,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-09 01:22:52,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-09 01:22:52,818 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:22:52,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:22:52,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1679214743, now seen corresponding path program 13 times [2024-11-09 01:22:52,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:22:52,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380486998] [2024-11-09 01:22:52,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:22:52,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:22:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:22:53,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1748404265] [2024-11-09 01:22:53,005 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 01:22:53,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:22:53,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:22:53,007 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:22:53,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-09 01:22:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:22:53,186 INFO L255 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 01:22:53,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:22:54,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1486 backedges. 0 proven. 1230 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-09 01:22:54,261 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:22:56,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1486 backedges. 0 proven. 1230 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-09 01:22:56,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:22:56,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380486998] [2024-11-09 01:22:56,041 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:22:56,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748404265] [2024-11-09 01:22:56,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748404265] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:22:56,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1724448816] [2024-11-09 01:22:56,043 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:22:56,043 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:22:56,044 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:22:56,044 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:22:56,044 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:22:57,136 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 01:22:57,153 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:22:57,176 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:23:02,159 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '115029#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_227| Int) (|v_ULTIMATE.start_main_~x2~0#1_73| Int)) (and (<= |v_ULTIMATE.start_main_~x2~0#1_73| 2147483647) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_227| |v_ULTIMATE.start_main_~x2~0#1_73|)) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_227|))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:23:02,159 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:23:02,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:23:02,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-11-09 01:23:02,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108634892] [2024-11-09 01:23:02,159 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 01:23:02,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 01:23:02,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:23:02,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 01:23:02,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=1760, Unknown=0, NotChecked=0, Total=1980 [2024-11-09 01:23:02,161 INFO L87 Difference]: Start difference. First operand 3905 states and 4318 transitions. Second operand has 22 states, 21 states have (on average 14.80952380952381) internal successors, (311), 22 states have internal predecessors, (311), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-09 01:23:07,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:23:07,966 INFO L93 Difference]: Finished difference Result 8085 states and 9040 transitions. [2024-11-09 01:23:07,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-09 01:23:07,966 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 14.80952380952381) internal successors, (311), 22 states have internal predecessors, (311), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) Word has length 263 [2024-11-09 01:23:07,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:23:07,987 INFO L225 Difference]: With dead ends: 8085 [2024-11-09 01:23:07,987 INFO L226 Difference]: Without dead ends: 8082 [2024-11-09 01:23:07,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 812 GetRequests, 730 SyntacticMatches, 14 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1382 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=723, Invalid=4107, Unknown=0, NotChecked=0, Total=4830 [2024-11-09 01:23:07,992 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 250 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 1763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-09 01:23:07,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 810 Invalid, 1763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1719 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-09 01:23:07,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8082 states. [2024-11-09 01:23:08,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8082 to 4477. [2024-11-09 01:23:08,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4477 states, 4200 states have (on average 1.0547619047619048) internal successors, (4430), 4203 states have internal predecessors, (4430), 270 states have call successors, (270), 3 states have call predecessors, (270), 3 states have return successors, (270), 270 states have call predecessors, (270), 270 states have call successors, (270) [2024-11-09 01:23:08,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4477 states to 4477 states and 4970 transitions. [2024-11-09 01:23:08,880 INFO L78 Accepts]: Start accepts. Automaton has 4477 states and 4970 transitions. Word has length 263 [2024-11-09 01:23:08,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:23:08,881 INFO L471 AbstractCegarLoop]: Abstraction has 4477 states and 4970 transitions. [2024-11-09 01:23:08,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 14.80952380952381) internal successors, (311), 22 states have internal predecessors, (311), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-09 01:23:08,881 INFO L276 IsEmpty]: Start isEmpty. Operand 4477 states and 4970 transitions. [2024-11-09 01:23:08,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-09 01:23:08,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:23:08,888 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 10, 10, 10, 10, 10, 5, 5, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:23:08,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-09 01:23:09,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-09 01:23:09,092 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:23:09,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:23:09,092 INFO L85 PathProgramCache]: Analyzing trace with hash -804527058, now seen corresponding path program 1 times [2024-11-09 01:23:09,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:23:09,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353581105] [2024-11-09 01:23:09,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:23:09,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:23:09,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:23:09,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1684 backedges. 0 proven. 1272 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2024-11-09 01:23:09,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:23:09,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353581105] [2024-11-09 01:23:09,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353581105] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:23:09,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376294019] [2024-11-09 01:23:09,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:23:09,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:23:09,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:23:09,445 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:23:09,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-09 01:23:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:23:09,589 INFO L255 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 01:23:09,594 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:23:10,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1684 backedges. 0 proven. 1272 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2024-11-09 01:23:10,020 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:23:10,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1684 backedges. 0 proven. 1272 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2024-11-09 01:23:10,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376294019] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:23:10,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [972522001] [2024-11-09 01:23:10,517 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:23:10,517 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:23:10,517 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:23:10,517 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:23:10,517 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:23:11,661 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 01:23:11,672 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:23:11,692 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:23:15,449 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '130908#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x2~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~x2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:23:15,449 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:23:15,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:23:15,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-11-09 01:23:15,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849417202] [2024-11-09 01:23:15,450 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:23:15,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 01:23:15,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:23:15,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 01:23:15,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1084, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 01:23:15,454 INFO L87 Difference]: Start difference. First operand 4477 states and 4970 transitions. Second operand has 13 states, 12 states have (on average 18.333333333333332) internal successors, (220), 13 states have internal predecessors, (220), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-09 01:23:18,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:23:18,034 INFO L93 Difference]: Finished difference Result 11567 states and 13144 transitions. [2024-11-09 01:23:18,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 01:23:18,035 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 18.333333333333332) internal successors, (220), 13 states have internal predecessors, (220), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 276 [2024-11-09 01:23:18,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:23:18,072 INFO L225 Difference]: With dead ends: 11567 [2024-11-09 01:23:18,072 INFO L226 Difference]: Without dead ends: 11566 [2024-11-09 01:23:18,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 832 GetRequests, 783 SyntacticMatches, 15 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 891 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=176, Invalid=1084, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 01:23:18,077 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 17 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:23:18,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 191 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:23:18,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11566 states. [2024-11-09 01:23:19,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11566 to 4616. [2024-11-09 01:23:19,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4616 states, 4330 states have (on average 1.0545034642032332) internal successors, (4566), 4333 states have internal predecessors, (4566), 279 states have call successors, (279), 3 states have call predecessors, (279), 3 states have return successors, (279), 279 states have call predecessors, (279), 279 states have call successors, (279) [2024-11-09 01:23:19,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4616 states to 4616 states and 5124 transitions. [2024-11-09 01:23:19,018 INFO L78 Accepts]: Start accepts. Automaton has 4616 states and 5124 transitions. Word has length 276 [2024-11-09 01:23:19,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:23:19,019 INFO L471 AbstractCegarLoop]: Abstraction has 4616 states and 5124 transitions. [2024-11-09 01:23:19,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 18.333333333333332) internal successors, (220), 13 states have internal predecessors, (220), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-09 01:23:19,019 INFO L276 IsEmpty]: Start isEmpty. Operand 4616 states and 5124 transitions. [2024-11-09 01:23:19,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-11-09 01:23:19,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:23:19,027 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:23:19,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-09 01:23:19,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:23:19,228 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:23:19,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:23:19,228 INFO L85 PathProgramCache]: Analyzing trace with hash -286675703, now seen corresponding path program 14 times [2024-11-09 01:23:19,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:23:19,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704193044] [2024-11-09 01:23:19,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:23:19,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:23:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:23:19,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1883402458] [2024-11-09 01:23:19,295 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:23:19,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:23:19,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:23:19,298 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:23:19,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-09 01:23:19,430 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-09 01:23:19,430 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:23:19,432 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 01:23:19,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:23:19,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1793 backedges. 766 proven. 161 refuted. 0 times theorem prover too weak. 866 trivial. 0 not checked. [2024-11-09 01:23:19,895 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:23:20,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:23:20,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704193044] [2024-11-09 01:23:20,430 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:23:20,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883402458] [2024-11-09 01:23:20,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883402458] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:23:20,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1006401477] [2024-11-09 01:23:20,432 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:23:20,432 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:23:20,432 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:23:20,432 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:23:20,433 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:23:21,555 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 01:23:21,565 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:23:21,577 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:23:26,021 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '150037#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~y1~0#1_248| Int) (|v_ULTIMATE.start_main_~x2~0#1_74| Int)) (and (<= 0 |v_ULTIMATE.start_main_~y1~0#1_248|) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_248| |v_ULTIMATE.start_main_~x2~0#1_74|)) (<= |v_ULTIMATE.start_main_~x2~0#1_74| 2147483647))) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:23:26,022 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:23:26,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:23:26,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 01:23:26,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473581885] [2024-11-09 01:23:26,022 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 01:23:26,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 01:23:26,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:23:26,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 01:23:26,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1182, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 01:23:26,024 INFO L87 Difference]: Start difference. First operand 4616 states and 5124 transitions. Second operand has 11 states, 10 states have (on average 10.5) internal successors, (105), 11 states have internal predecessors, (105), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-09 01:23:27,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:23:27,777 INFO L93 Difference]: Finished difference Result 5372 states and 5971 transitions. [2024-11-09 01:23:27,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 01:23:27,778 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.5) internal successors, (105), 11 states have internal predecessors, (105), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 281 [2024-11-09 01:23:27,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:23:27,793 INFO L225 Difference]: With dead ends: 5372 [2024-11-09 01:23:27,793 INFO L226 Difference]: Without dead ends: 4598 [2024-11-09 01:23:27,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 579 GetRequests, 523 SyntacticMatches, 15 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=193, Invalid=1613, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 01:23:27,797 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 70 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 01:23:27,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 510 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 01:23:27,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4598 states. [2024-11-09 01:23:28,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4598 to 4436. [2024-11-09 01:23:28,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4436 states, 4159 states have (on average 1.0557826400577062) internal successors, (4391), 4162 states have internal predecessors, (4391), 270 states have call successors, (270), 3 states have call predecessors, (270), 3 states have return successors, (270), 270 states have call predecessors, (270), 270 states have call successors, (270) [2024-11-09 01:23:28,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4436 states to 4436 states and 4931 transitions. [2024-11-09 01:23:28,720 INFO L78 Accepts]: Start accepts. Automaton has 4436 states and 4931 transitions. Word has length 281 [2024-11-09 01:23:28,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:23:28,721 INFO L471 AbstractCegarLoop]: Abstraction has 4436 states and 4931 transitions. [2024-11-09 01:23:28,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.5) internal successors, (105), 11 states have internal predecessors, (105), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-09 01:23:28,721 INFO L276 IsEmpty]: Start isEmpty. Operand 4436 states and 4931 transitions. [2024-11-09 01:23:28,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-09 01:23:28,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:23:28,728 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:23:28,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-09 01:23:28,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:23:28,929 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:23:28,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:23:28,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1801826647, now seen corresponding path program 3 times [2024-11-09 01:23:28,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:23:28,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494755225] [2024-11-09 01:23:28,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:23:28,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:23:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:23:29,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1911 backedges. 14 proven. 1699 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-09 01:23:29,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:23:29,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494755225] [2024-11-09 01:23:29,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494755225] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:23:29,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810927429] [2024-11-09 01:23:29,958 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 01:23:29,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:23:29,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:23:29,960 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:23:29,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-09 01:23:30,098 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 01:23:30,098 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:23:30,101 INFO L255 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 01:23:30,107 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:23:30,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1911 backedges. 14 proven. 1699 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-09 01:23:30,599 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:23:31,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1911 backedges. 14 proven. 1699 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-09 01:23:31,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810927429] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:23:31,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [544003582] [2024-11-09 01:23:31,522 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:23:31,522 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:23:31,523 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:23:31,523 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:23:31,523 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:23:32,659 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 01:23:32,677 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:23:32,699 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:23:37,332 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '162847#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~y1~0#1_257| Int) (|v_ULTIMATE.start_main_~x2~0#1_77| Int)) (and (<= 1 (* |v_ULTIMATE.start_main_~y1~0#1_257| |v_ULTIMATE.start_main_~x2~0#1_77|)) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_257|) (<= (* |v_ULTIMATE.start_main_~y1~0#1_257| |v_ULTIMATE.start_main_~x2~0#1_77|) 2147483647))) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:23:37,332 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:23:37,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:23:37,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 36 [2024-11-09 01:23:37,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231728679] [2024-11-09 01:23:37,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:23:37,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-09 01:23:37,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:23:37,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-09 01:23:37,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=621, Invalid=2919, Unknown=0, NotChecked=0, Total=3540 [2024-11-09 01:23:37,337 INFO L87 Difference]: Start difference. First operand 4436 states and 4931 transitions. Second operand has 37 states, 35 states have (on average 13.314285714285715) internal successors, (466), 37 states have internal predecessors, (466), 31 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2024-11-09 01:23:45,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:23:45,762 INFO L93 Difference]: Finished difference Result 20440 states and 22988 transitions. [2024-11-09 01:23:45,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2024-11-09 01:23:45,763 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 35 states have (on average 13.314285714285715) internal successors, (466), 37 states have internal predecessors, (466), 31 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) Word has length 283 [2024-11-09 01:23:45,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:23:45,817 INFO L225 Difference]: With dead ends: 20440 [2024-11-09 01:23:45,817 INFO L226 Difference]: Without dead ends: 20439 [2024-11-09 01:23:45,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 940 GetRequests, 792 SyntacticMatches, 16 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7153 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=4293, Invalid=13529, Unknown=0, NotChecked=0, Total=17822 [2024-11-09 01:23:45,826 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 525 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:23:45,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 210 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 01:23:45,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20439 states. [2024-11-09 01:23:49,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20439 to 18378. [2024-11-09 01:23:49,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18378 states, 17267 states have (on average 1.0345167081716569) internal successors, (17863), 17270 states have internal predecessors, (17863), 1104 states have call successors, (1104), 3 states have call predecessors, (1104), 3 states have return successors, (1104), 1104 states have call predecessors, (1104), 1104 states have call successors, (1104) [2024-11-09 01:23:49,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18378 states to 18378 states and 20071 transitions. [2024-11-09 01:23:49,882 INFO L78 Accepts]: Start accepts. Automaton has 18378 states and 20071 transitions. Word has length 283 [2024-11-09 01:23:49,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:23:49,882 INFO L471 AbstractCegarLoop]: Abstraction has 18378 states and 20071 transitions. [2024-11-09 01:23:49,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 35 states have (on average 13.314285714285715) internal successors, (466), 37 states have internal predecessors, (466), 31 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2024-11-09 01:23:49,883 INFO L276 IsEmpty]: Start isEmpty. Operand 18378 states and 20071 transitions. [2024-11-09 01:23:49,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-11-09 01:23:49,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:23:49,888 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:23:49,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-09 01:23:50,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-09 01:23:50,089 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:23:50,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:23:50,090 INFO L85 PathProgramCache]: Analyzing trace with hash -942971897, now seen corresponding path program 15 times [2024-11-09 01:23:50,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:23:50,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114170757] [2024-11-09 01:23:50,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:23:50,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:23:50,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:23:50,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [804443749] [2024-11-09 01:23:50,160 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 01:23:50,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:23:50,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:23:50,164 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:23:50,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-09 01:23:50,363 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 01:23:50,363 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:23:50,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-09 01:23:50,376 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:23:52,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2098 backedges. 7 proven. 1877 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2024-11-09 01:23:52,732 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:23:53,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:23:53,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114170757] [2024-11-09 01:23:53,509 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:23:53,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804443749] [2024-11-09 01:23:53,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804443749] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:23:53,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [485504652] [2024-11-09 01:23:53,511 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:23:53,511 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:23:53,511 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:23:53,512 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:23:53,512 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:23:54,602 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 01:23:54,617 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:23:54,637 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:24:00,793 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '207641#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_264| Int) (|v_ULTIMATE.start_main_~x2~0#1_78| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_264| |v_ULTIMATE.start_main_~x2~0#1_78|)) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_264|) (<= |v_ULTIMATE.start_main_~x2~0#1_78| 2147483647))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:24:00,793 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:24:00,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:24:00,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2024-11-09 01:24:00,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887794126] [2024-11-09 01:24:00,794 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 01:24:00,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-09 01:24:00,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:24:00,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-09 01:24:00,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=3058, Unknown=0, NotChecked=0, Total=3306 [2024-11-09 01:24:00,795 INFO L87 Difference]: Start difference. First operand 18378 states and 20071 transitions. Second operand has 32 states, 30 states have (on average 8.266666666666667) internal successors, (248), 32 states have internal predecessors, (248), 17 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-09 01:24:05,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:24:05,686 INFO L93 Difference]: Finished difference Result 21837 states and 23829 transitions. [2024-11-09 01:24:05,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-09 01:24:05,687 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 8.266666666666667) internal successors, (248), 32 states have internal predecessors, (248), 17 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) Word has length 299 [2024-11-09 01:24:05,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:24:05,716 INFO L225 Difference]: With dead ends: 21837 [2024-11-09 01:24:05,716 INFO L226 Difference]: Without dead ends: 18469 [2024-11-09 01:24:05,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 612 GetRequests, 537 SyntacticMatches, 16 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1744 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=272, Invalid=3388, Unknown=0, NotChecked=0, Total=3660 [2024-11-09 01:24:05,724 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 39 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 3019 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 3028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:24:05,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 755 Invalid, 3028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 3019 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-09 01:24:05,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18469 states. [2024-11-09 01:24:09,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18469 to 18314. [2024-11-09 01:24:09,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18314 states, 17207 states have (on average 1.0343464868948684) internal successors, (17798), 17210 states have internal predecessors, (17798), 1100 states have call successors, (1100), 3 states have call predecessors, (1100), 3 states have return successors, (1100), 1100 states have call predecessors, (1100), 1100 states have call successors, (1100) [2024-11-09 01:24:09,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18314 states to 18314 states and 19998 transitions. [2024-11-09 01:24:09,057 INFO L78 Accepts]: Start accepts. Automaton has 18314 states and 19998 transitions. Word has length 299 [2024-11-09 01:24:09,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:24:09,058 INFO L471 AbstractCegarLoop]: Abstraction has 18314 states and 19998 transitions. [2024-11-09 01:24:09,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 8.266666666666667) internal successors, (248), 32 states have internal predecessors, (248), 17 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-09 01:24:09,058 INFO L276 IsEmpty]: Start isEmpty. Operand 18314 states and 19998 transitions. [2024-11-09 01:24:09,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-11-09 01:24:09,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:24:09,067 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 15, 15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:24:09,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-09 01:24:09,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-09 01:24:09,271 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:24:09,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:24:09,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1352983887, now seen corresponding path program 16 times [2024-11-09 01:24:09,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:24:09,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643545948] [2024-11-09 01:24:09,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:24:09,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:24:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:24:10,156 INFO L134 CoverageAnalysis]: Checked inductivity of 2381 backedges. 503 proven. 1604 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-09 01:24:10,157 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:24:10,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643545948] [2024-11-09 01:24:10,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643545948] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:24:10,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182748761] [2024-11-09 01:24:10,157 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 01:24:10,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:24:10,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:24:10,160 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:24:10,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-09 01:24:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:24:10,285 INFO L255 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 01:24:10,291 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:24:11,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2381 backedges. 599 proven. 1508 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-09 01:24:11,013 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:24:11,561 INFO L134 CoverageAnalysis]: Checked inductivity of 2381 backedges. 599 proven. 1508 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-09 01:24:11,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1182748761] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:24:11,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [884386742] [2024-11-09 01:24:11,562 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:24:11,563 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:24:11,563 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:24:11,563 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:24:11,563 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:24:12,524 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 01:24:12,537 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:24:12,554 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:24:17,838 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '254762#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_272| Int) (|v_ULTIMATE.start_main_~x2~0#1_79| Int)) (and (<= |v_ULTIMATE.start_main_~x2~0#1_79| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_272|) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_272| |v_ULTIMATE.start_main_~x2~0#1_79|)))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:24:17,838 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:24:17,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:24:17,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 30 [2024-11-09 01:24:17,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005098436] [2024-11-09 01:24:17,839 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:24:17,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 01:24:17,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:24:17,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 01:24:17,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=2420, Unknown=0, NotChecked=0, Total=2756 [2024-11-09 01:24:17,841 INFO L87 Difference]: Start difference. First operand 18314 states and 19998 transitions. Second operand has 30 states, 30 states have (on average 13.7) internal successors, (411), 30 states have internal predecessors, (411), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-09 01:24:21,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:24:21,641 INFO L93 Difference]: Finished difference Result 24371 states and 26668 transitions. [2024-11-09 01:24:21,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 01:24:21,642 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 13.7) internal successors, (411), 30 states have internal predecessors, (411), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) Word has length 317 [2024-11-09 01:24:21,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:24:21,669 INFO L225 Difference]: With dead ends: 24371 [2024-11-09 01:24:21,669 INFO L226 Difference]: Without dead ends: 16569 [2024-11-09 01:24:21,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 977 GetRequests, 865 SyntacticMatches, 53 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3631 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=460, Invalid=3200, Unknown=0, NotChecked=0, Total=3660 [2024-11-09 01:24:21,684 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 29 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 1722 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 1724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:24:21,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 879 Invalid, 1724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1722 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 01:24:21,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16569 states. [2024-11-09 01:24:24,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16569 to 14051. [2024-11-09 01:24:24,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14051 states, 13202 states have (on average 1.0287835176488411) internal successors, (13582), 13205 states have internal predecessors, (13582), 842 states have call successors, (842), 3 states have call predecessors, (842), 3 states have return successors, (842), 842 states have call predecessors, (842), 842 states have call successors, (842) [2024-11-09 01:24:24,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14051 states to 14051 states and 15266 transitions. [2024-11-09 01:24:24,782 INFO L78 Accepts]: Start accepts. Automaton has 14051 states and 15266 transitions. Word has length 317 [2024-11-09 01:24:24,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:24:24,783 INFO L471 AbstractCegarLoop]: Abstraction has 14051 states and 15266 transitions. [2024-11-09 01:24:24,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 13.7) internal successors, (411), 30 states have internal predecessors, (411), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-09 01:24:24,783 INFO L276 IsEmpty]: Start isEmpty. Operand 14051 states and 15266 transitions. [2024-11-09 01:24:24,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-11-09 01:24:24,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:24:24,788 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 15, 15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:24:24,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-09 01:24:24,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:24:24,989 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:24:24,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:24:24,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1007892785, now seen corresponding path program 17 times [2024-11-09 01:24:24,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:24:24,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592483337] [2024-11-09 01:24:24,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:24:24,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:24:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:24:25,759 INFO L134 CoverageAnalysis]: Checked inductivity of 2381 backedges. 599 proven. 1508 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-09 01:24:25,759 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:24:25,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592483337] [2024-11-09 01:24:25,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592483337] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:24:25,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678587973] [2024-11-09 01:24:25,760 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:24:25,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:24:25,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:24:25,761 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:24:25,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-09 01:24:25,881 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-09 01:24:25,881 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:24:25,883 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 01:24:25,889 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:24:26,793 INFO L134 CoverageAnalysis]: Checked inductivity of 2381 backedges. 0 proven. 1687 refuted. 0 times theorem prover too weak. 694 trivial. 0 not checked. [2024-11-09 01:24:26,794 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:24:27,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678587973] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:24:27,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2130745001] [2024-11-09 01:24:27,437 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:24:27,437 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:24:27,438 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:24:27,438 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:24:27,438 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:24:28,222 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 01:24:28,231 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:24:28,241 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:24:34,811 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '299044#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (exists ((|v_ULTIMATE.start_main_~x2~0#1_80| Int) (|v_ULTIMATE.start_main_~y1~0#1_280| Int)) (and (<= 0 |v_ULTIMATE.start_main_~y1~0#1_280|) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_280| |v_ULTIMATE.start_main_~x2~0#1_80|)) (<= |v_ULTIMATE.start_main_~x2~0#1_80| 2147483647))) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:24:34,812 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:24:34,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:24:34,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 13] total 32 [2024-11-09 01:24:34,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515979726] [2024-11-09 01:24:34,812 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 01:24:34,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-09 01:24:34,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:24:34,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-09 01:24:34,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=2998, Unknown=0, NotChecked=0, Total=3306 [2024-11-09 01:24:34,814 INFO L87 Difference]: Start difference. First operand 14051 states and 15266 transitions. Second operand has 32 states, 32 states have (on average 13.15625) internal successors, (421), 32 states have internal predecessors, (421), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-09 01:24:40,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:24:40,200 INFO L93 Difference]: Finished difference Result 19096 states and 20775 transitions. [2024-11-09 01:24:40,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-09 01:24:40,200 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 13.15625) internal successors, (421), 32 states have internal predecessors, (421), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) Word has length 317 [2024-11-09 01:24:40,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:24:40,220 INFO L225 Difference]: With dead ends: 19096 [2024-11-09 01:24:40,220 INFO L226 Difference]: Without dead ends: 16950 [2024-11-09 01:24:40,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 712 GetRequests, 592 SyntacticMatches, 17 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4207 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=923, Invalid=9997, Unknown=0, NotChecked=0, Total=10920 [2024-11-09 01:24:40,225 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 522 mSDsluCounter, 1927 mSDsCounter, 0 mSdLazyCounter, 5398 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 5444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 5398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:24:40,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 2095 Invalid, 5444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 5398 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-09 01:24:40,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16950 states. [2024-11-09 01:24:42,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16950 to 14915. [2024-11-09 01:24:42,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14915 states, 14011 states have (on average 1.0259082149739491) internal successors, (14374), 14014 states have internal predecessors, (14374), 897 states have call successors, (897), 3 states have call predecessors, (897), 3 states have return successors, (897), 897 states have call predecessors, (897), 897 states have call successors, (897) [2024-11-09 01:24:42,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14915 states to 14915 states and 16168 transitions. [2024-11-09 01:24:42,169 INFO L78 Accepts]: Start accepts. Automaton has 14915 states and 16168 transitions. Word has length 317 [2024-11-09 01:24:42,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:24:42,169 INFO L471 AbstractCegarLoop]: Abstraction has 14915 states and 16168 transitions. [2024-11-09 01:24:42,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 13.15625) internal successors, (421), 32 states have internal predecessors, (421), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-09 01:24:42,170 INFO L276 IsEmpty]: Start isEmpty. Operand 14915 states and 16168 transitions. [2024-11-09 01:24:42,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2024-11-09 01:24:42,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:24:42,174 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:24:42,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-11-09 01:24:42,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-09 01:24:42,374 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 01:24:42,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:24:42,375 INFO L85 PathProgramCache]: Analyzing trace with hash 310351201, now seen corresponding path program 18 times [2024-11-09 01:24:42,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:24:42,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892498956] [2024-11-09 01:24:42,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:24:42,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:24:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:24:42,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1004101314] [2024-11-09 01:24:42,417 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 01:24:42,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:24:42,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:24:42,419 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:24:42,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cc6180-4ecd-4c9e-960f-eb69d02c967e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-09 01:24:42,575 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 01:24:42,575 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:24:42,578 INFO L255 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 90 conjuncts are in the unsatisfiable core [2024-11-09 01:24:42,584 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:25:42,717 INFO L134 CoverageAnalysis]: Checked inductivity of 2630 backedges. 40 proven. 2337 refuted. 18 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 01:25:42,717 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:25:43,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:25:43,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892498956] [2024-11-09 01:25:43,485 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:25:43,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004101314] [2024-11-09 01:25:43,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004101314] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:25:43,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [225003117] [2024-11-09 01:25:43,486 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:25:43,486 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:25:43,487 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:25:43,487 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:25:43,487 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:25:44,338 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 01:25:44,348 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 01:25:44,360 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:25:51,760 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '338522#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~x2~0#1_81| Int) (|v_ULTIMATE.start_main_~y1~0#1_287| Int)) (and (<= 0 |v_ULTIMATE.start_main_~y1~0#1_287|) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_287| |v_ULTIMATE.start_main_~x2~0#1_81|)) (<= |v_ULTIMATE.start_main_~x2~0#1_81| 2147483647))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:25:51,760 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:25:51,760 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:25:51,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60] total 60 [2024-11-09 01:25:51,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842092921] [2024-11-09 01:25:51,761 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 01:25:51,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2024-11-09 01:25:51,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:25:51,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2024-11-09 01:25:51,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=6964, Unknown=22, NotChecked=0, Total=7482 [2024-11-09 01:25:51,764 INFO L87 Difference]: Start difference. First operand 14915 states and 16168 transitions. Second operand has 61 states, 57 states have (on average 4.894736842105263) internal successors, (279), 54 states have internal predecessors, (279), 20 states have call successors, (20), 1 states have call predecessors, (20), 3 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 01:25:57,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:25:59,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:26:01,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:26:07,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:26:09,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:26:10,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:26:11,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:26:13,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:26:20,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:26:22,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:26:24,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:26:26,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:26:28,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:26:30,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:26:32,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:26:35,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:26:36,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:26:38,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:26:40,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:26:42,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:26:44,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:26:46,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:26:48,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:26:50,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:26:52,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:26:58,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:26:59,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:27:01,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:27:03,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:27:06,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:27:12,925 WARN L539 Checker$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 01:27:14,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:27:16,922 WARN L539 Checker$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 01:27:18,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:27:20,849 WARN L539 Checker$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 01:27:22,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:27:24,889 WARN L539 Checker$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 01:27:27,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:27:28,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:27:30,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:27:32,985 WARN L539 Checker$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 01:27:34,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:27:37,000 WARN L539 Checker$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 01:27:39,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:27:41,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:27:43,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:27:45,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:27:47,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:27:58,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:28:00,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:28:01,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:28:03,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:28:05,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:28:07,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:28:09,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:28:11,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:28:13,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:28:15,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:28:16,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:28:18,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:28:20,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:28:22,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:28:24,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:28:26,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:28:28,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:28:30,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:28:39,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:28:41,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:28:43,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:28:44,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:28:46,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:28:49,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:28:51,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:28:59,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:29:01,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:29:03,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:29:05,378 WARN L539 Checker$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 01:29:08,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:29:10,561 WARN L539 Checker$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 01:29:13,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:29:15,355 WARN L539 Checker$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 01:29:17,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:29:19,380 WARN L539 Checker$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 01:29:21,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:29:23,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:29:25,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:29:28,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:29:30,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:29:32,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:29:34,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:29:36,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:29:48,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:29:50,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:29:52,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:29:54,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:29:56,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:29:58,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:00,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:02,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:04,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:06,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:08,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:10,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:12,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:14,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:16,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:18,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:20,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:22,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:24,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:26,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:28,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:30,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:32,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:34,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:41,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:43,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:45,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:47,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:49,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:51,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:53,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:55,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:57,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:30:59,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:31:01,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:31:14,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:31:16,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:31:18,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:31:20,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:31:22,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:31:24,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:31:26,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:31:28,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:31:30,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:31:32,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:31:34,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:31:36,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:31:39,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:31:41,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:31:43,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:31:45,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:31:47,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:31:49,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:31:51,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:31:53,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:32:05,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:32:07,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:32:09,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:32:11,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:32:13,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:32:15,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:32:17,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:32:19,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:32:21,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:32:23,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:32:25,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:32:27,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:32:29,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:32:31,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:32:33,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:32:37,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:32:39,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:32:41,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:32:54,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:32:56,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:32:59,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:33:01,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:33:03,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:33:05,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:33:09,102 WARN L539 Checker$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 01:33:11,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:33:13,120 WARN L539 Checker$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 01:33:15,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:33:17,257 WARN L539 Checker$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 01:33:19,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:33:21,289 WARN L539 Checker$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 01:33:23,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:33:25,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:33:27,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:33:29,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]