./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/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_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/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_3d591ea9-87ef-4cd3-8c29-2a17012b2065/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 a3c408aeb75b378569a9828f29f37caa03495bee0afeec4c4af831c79f34806f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:31:36,701 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:31:36,793 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 05:31:36,806 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:31:36,807 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:31:36,848 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:31:36,850 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:31:36,851 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:31:36,851 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:31:36,852 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:31:36,852 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:31:36,852 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:31:36,853 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:31:36,856 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:31:36,856 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:31:36,857 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:31:36,857 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:31:36,857 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:31:36,858 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:31:36,858 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:31:36,862 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:31:36,863 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:31:36,864 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:31:36,864 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:31:36,864 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:31:36,864 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:31:36,865 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:31:36,865 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:31:36,865 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:31:36,866 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:31:36,868 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:31:36,869 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:31:36,870 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 05:31:36,870 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:31:36,870 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:31:36,870 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:31:36,871 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:31:36,871 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:31:36,871 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:31:36,871 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:31:36,872 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:31:36,872 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:31:36,872 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:31:36,872 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:31:36,873 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:31:36,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:31:36,873 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:31:36,873 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:31:36,873 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:31:36,874 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_3d591ea9-87ef-4cd3-8c29-2a17012b2065/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3c408aeb75b378569a9828f29f37caa03495bee0afeec4c4af831c79f34806f [2024-11-09 05:31:37,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:31:37,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:31:37,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:31:37,233 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:31:37,235 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:31:37,236 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound50.c Unable to find full path for "g++" [2024-11-09 05:31:39,290 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:31:39,537 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:31:39,538 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound50.c [2024-11-09 05:31:39,547 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/data/eb2d0c083/0b368c45dc6040109b7f16144ee80a1d/FLAG9f41c6478 [2024-11-09 05:31:39,563 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/data/eb2d0c083/0b368c45dc6040109b7f16144ee80a1d [2024-11-09 05:31:39,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:31:39,569 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:31:39,571 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:31:39,571 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:31:39,576 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:31:39,577 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:31:39" (1/1) ... [2024-11-09 05:31:39,578 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2713b00d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:39, skipping insertion in model container [2024-11-09 05:31:39,578 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:31:39" (1/1) ... [2024-11-09 05:31:39,613 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:31:39,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:31:39,840 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:31:39,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:31:39,882 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:31:39,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:39 WrapperNode [2024-11-09 05:31:39,883 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:31:39,884 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:31:39,884 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:31:39,884 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:31:39,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:39" (1/1) ... [2024-11-09 05:31:39,900 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:39" (1/1) ... [2024-11-09 05:31:39,928 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2024-11-09 05:31:39,928 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:31:39,929 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:31:39,929 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:31:39,930 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:31:39,940 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:39" (1/1) ... [2024-11-09 05:31:39,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:39" (1/1) ... [2024-11-09 05:31:39,943 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:39" (1/1) ... [2024-11-09 05:31:39,944 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:39" (1/1) ... [2024-11-09 05:31:39,948 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:39" (1/1) ... [2024-11-09 05:31:39,952 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:39" (1/1) ... [2024-11-09 05:31:39,954 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:39" (1/1) ... [2024-11-09 05:31:39,955 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:39" (1/1) ... [2024-11-09 05:31:39,958 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:31:39,959 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:31:39,959 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:31:39,959 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:31:39,960 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:39" (1/1) ... [2024-11-09 05:31:39,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:31:39,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:31:39,995 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:31:40,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:31:40,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:31:40,036 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:31:40,037 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:31:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:31:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:31:40,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:31:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 05:31:40,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 05:31:40,109 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:31:40,111 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:31:40,487 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-11-09 05:31:40,487 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:31:40,553 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:31:40,553 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 05:31:40,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:31:40 BoogieIcfgContainer [2024-11-09 05:31:40,554 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:31:40,556 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:31:40,557 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:31:40,560 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:31:40,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:31:39" (1/3) ... [2024-11-09 05:31:40,561 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@491417b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:31:40, skipping insertion in model container [2024-11-09 05:31:40,561 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:39" (2/3) ... [2024-11-09 05:31:40,561 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@491417b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:31:40, skipping insertion in model container [2024-11-09 05:31:40,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:31:40" (3/3) ... [2024-11-09 05:31:40,563 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound50.c [2024-11-09 05:31:40,582 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:31:40,583 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-11-09 05:31:40,652 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:31:40,659 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;@3658dbb1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:31:40,659 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-09 05:31:40,664 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 35 states have (on average 1.8285714285714285) internal successors, (64), 59 states have internal predecessors, (64), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 05:31:40,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 05:31:40,673 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:31:40,674 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:31:40,675 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:31:40,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:31:40,682 INFO L85 PathProgramCache]: Analyzing trace with hash 31241006, now seen corresponding path program 1 times [2024-11-09 05:31:40,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:31:40,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29667747] [2024-11-09 05:31:40,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:40,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:31:40,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:31:40,920 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:31:40,921 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:31:40,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29667747] [2024-11-09 05:31:40,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29667747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:31:40,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:31:40,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:31:40,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604555501] [2024-11-09 05:31:40,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:31:40,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:31:40,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:31:40,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:31:40,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:31:40,971 INFO L87 Difference]: Start difference. First operand has 72 states, 35 states have (on average 1.8285714285714285) internal successors, (64), 59 states have internal predecessors, (64), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 05:31:41,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:31:41,023 INFO L93 Difference]: Finished difference Result 119 states and 136 transitions. [2024-11-09 05:31:41,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:31:41,026 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 15 [2024-11-09 05:31:41,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:31:41,036 INFO L225 Difference]: With dead ends: 119 [2024-11-09 05:31:41,036 INFO L226 Difference]: Without dead ends: 68 [2024-11-09 05:31:41,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:31:41,045 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:31:41,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:31:41,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-09 05:31:41,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-11-09 05:31:41,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 34 states have (on average 1.7647058823529411) internal successors, (60), 57 states have internal predecessors, (60), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 05:31:41,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 76 transitions. [2024-11-09 05:31:41,145 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 76 transitions. Word has length 15 [2024-11-09 05:31:41,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:31:41,147 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 76 transitions. [2024-11-09 05:31:41,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 05:31:41,149 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2024-11-09 05:31:41,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 05:31:41,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:31:41,152 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:31:41,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:31:41,153 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:31:41,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:31:41,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1026206095, now seen corresponding path program 1 times [2024-11-09 05:31:41,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:31:41,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198150281] [2024-11-09 05:31:41,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:41,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:31:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:31:41,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1407317202] [2024-11-09 05:31:41,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:41,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:31:41,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:31:41,249 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:31:41,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:31:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:31:41,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:31:41,339 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:31:41,397 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:31:41,398 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:31:41,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:31:41,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198150281] [2024-11-09 05:31:41,399 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:31:41,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407317202] [2024-11-09 05:31:41,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407317202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:31:41,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:31:41,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:31:41,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740218069] [2024-11-09 05:31:41,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:31:41,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:31:41,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:31:41,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:31:41,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:31:41,407 INFO L87 Difference]: Start difference. First operand 68 states and 76 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:31:41,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:31:41,548 INFO L93 Difference]: Finished difference Result 142 states and 161 transitions. [2024-11-09 05:31:41,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:31:41,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 20 [2024-11-09 05:31:41,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:31:41,551 INFO L225 Difference]: With dead ends: 142 [2024-11-09 05:31:41,551 INFO L226 Difference]: Without dead ends: 95 [2024-11-09 05:31:41,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:31:41,554 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 20 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:31:41,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 116 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:31:41,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-09 05:31:41,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 89. [2024-11-09 05:31:41,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 50 states have (on average 1.66) internal successors, (83), 73 states have internal predecessors, (83), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 05:31:41,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 109 transitions. [2024-11-09 05:31:41,587 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 109 transitions. Word has length 20 [2024-11-09 05:31:41,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:31:41,588 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 109 transitions. [2024-11-09 05:31:41,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:31:41,588 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 109 transitions. [2024-11-09 05:31:41,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 05:31:41,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:31:41,590 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:31:41,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:31:41,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:31:41,792 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:31:41,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:31:41,793 INFO L85 PathProgramCache]: Analyzing trace with hash 533185486, now seen corresponding path program 1 times [2024-11-09 05:31:41,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:31:41,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258593157] [2024-11-09 05:31:41,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:41,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:31:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:31:42,045 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:31:42,046 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:31:42,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258593157] [2024-11-09 05:31:42,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258593157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:31:42,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:31:42,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:31:42,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609585240] [2024-11-09 05:31:42,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:31:42,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:31:42,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:31:42,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:31:42,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:31:42,050 INFO L87 Difference]: Start difference. First operand 89 states and 109 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:31:42,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:31:42,199 INFO L93 Difference]: Finished difference Result 89 states and 109 transitions. [2024-11-09 05:31:42,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:31:42,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 26 [2024-11-09 05:31:42,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:31:42,202 INFO L225 Difference]: With dead ends: 89 [2024-11-09 05:31:42,202 INFO L226 Difference]: Without dead ends: 87 [2024-11-09 05:31:42,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:31:42,206 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 39 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:31:42,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 62 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:31:42,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-09 05:31:42,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-09 05:31:42,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 50 states have (on average 1.6) internal successors, (80), 71 states have internal predecessors, (80), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 05:31:42,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 106 transitions. [2024-11-09 05:31:42,223 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 106 transitions. Word has length 26 [2024-11-09 05:31:42,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:31:42,224 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 106 transitions. [2024-11-09 05:31:42,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:31:42,224 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 106 transitions. [2024-11-09 05:31:42,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 05:31:42,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:31:42,226 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:31:42,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:31:42,226 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:31:42,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:31:42,227 INFO L85 PathProgramCache]: Analyzing trace with hash -651120467, now seen corresponding path program 1 times [2024-11-09 05:31:42,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:31:42,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986856761] [2024-11-09 05:31:42,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:42,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:31:42,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:31:42,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [800730679] [2024-11-09 05:31:42,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:42,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:31:42,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:31:42,258 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:31:42,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:31:42,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:31:42,325 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:31:42,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:31:42,361 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:31:42,361 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:31:42,362 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:31:42,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986856761] [2024-11-09 05:31:42,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:31:42,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800730679] [2024-11-09 05:31:42,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800730679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:31:42,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:31:42,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:31:42,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19258645] [2024-11-09 05:31:42,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:31:42,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:31:42,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:31:42,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:31:42,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:31:42,366 INFO L87 Difference]: Start difference. First operand 87 states and 106 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:31:42,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:31:42,515 INFO L93 Difference]: Finished difference Result 121 states and 149 transitions. [2024-11-09 05:31:42,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:31:42,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 27 [2024-11-09 05:31:42,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:31:42,517 INFO L225 Difference]: With dead ends: 121 [2024-11-09 05:31:42,517 INFO L226 Difference]: Without dead ends: 117 [2024-11-09 05:31:42,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:31:42,519 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 37 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:31:42,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 90 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:31:42,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-09 05:31:42,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 104. [2024-11-09 05:31:42,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.5692307692307692) internal successors, (102), 86 states have internal predecessors, (102), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 05:31:42,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 132 transitions. [2024-11-09 05:31:42,533 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 132 transitions. Word has length 27 [2024-11-09 05:31:42,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:31:42,534 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 132 transitions. [2024-11-09 05:31:42,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:31:42,534 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 132 transitions. [2024-11-09 05:31:42,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 05:31:42,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:31:42,535 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:31:42,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:31:42,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:31:42,736 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:31:42,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:31:42,737 INFO L85 PathProgramCache]: Analyzing trace with hash -651119057, now seen corresponding path program 1 times [2024-11-09 05:31:42,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:31:42,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756837150] [2024-11-09 05:31:42,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:42,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:31:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:31:42,938 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:31:42,939 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:31:42,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756837150] [2024-11-09 05:31:42,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756837150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:31:42,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:31:42,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:31:42,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899027971] [2024-11-09 05:31:42,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:31:42,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:31:42,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:31:42,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:31:42,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:31:42,941 INFO L87 Difference]: Start difference. First operand 104 states and 132 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:31:43,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:31:43,032 INFO L93 Difference]: Finished difference Result 111 states and 137 transitions. [2024-11-09 05:31:43,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:31:43,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 27 [2024-11-09 05:31:43,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:31:43,035 INFO L225 Difference]: With dead ends: 111 [2024-11-09 05:31:43,035 INFO L226 Difference]: Without dead ends: 110 [2024-11-09 05:31:43,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:31:43,036 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 14 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:31:43,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 111 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:31:43,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-09 05:31:43,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 104. [2024-11-09 05:31:43,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.5538461538461539) internal successors, (101), 86 states have internal predecessors, (101), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 05:31:43,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 131 transitions. [2024-11-09 05:31:43,051 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 131 transitions. Word has length 27 [2024-11-09 05:31:43,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:31:43,052 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 131 transitions. [2024-11-09 05:31:43,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:31:43,052 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 131 transitions. [2024-11-09 05:31:43,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 05:31:43,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:31:43,054 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:31:43,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:31:43,054 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:31:43,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:31:43,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1338458959, now seen corresponding path program 1 times [2024-11-09 05:31:43,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:31:43,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249429962] [2024-11-09 05:31:43,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:43,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:31:43,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:31:43,209 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:31:43,211 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:31:43,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249429962] [2024-11-09 05:31:43,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249429962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:31:43,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:31:43,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:31:43,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880902476] [2024-11-09 05:31:43,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:31:43,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:31:43,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:31:43,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:31:43,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:31:43,215 INFO L87 Difference]: Start difference. First operand 104 states and 131 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:31:43,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:31:43,627 INFO L93 Difference]: Finished difference Result 119 states and 145 transitions. [2024-11-09 05:31:43,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:31:43,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 29 [2024-11-09 05:31:43,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:31:43,629 INFO L225 Difference]: With dead ends: 119 [2024-11-09 05:31:43,629 INFO L226 Difference]: Without dead ends: 118 [2024-11-09 05:31:43,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:31:43,630 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 85 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:31:43,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 86 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:31:43,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-09 05:31:43,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 108. [2024-11-09 05:31:43,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 69 states have (on average 1.5217391304347827) internal successors, (105), 90 states have internal predecessors, (105), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 05:31:43,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 135 transitions. [2024-11-09 05:31:43,679 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 135 transitions. Word has length 29 [2024-11-09 05:31:43,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:31:43,679 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 135 transitions. [2024-11-09 05:31:43,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:31:43,680 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 135 transitions. [2024-11-09 05:31:43,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 05:31:43,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:31:43,681 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:31:43,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 05:31:43,681 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:31:43,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:31:43,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1457445148, now seen corresponding path program 1 times [2024-11-09 05:31:43,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:31:43,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129808932] [2024-11-09 05:31:43,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:43,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:31:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:31:43,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [977469314] [2024-11-09 05:31:43,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:43,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:31:43,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:31:43,713 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:31:43,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:31:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:31:43,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:31:43,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:31:43,926 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:31:43,926 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:31:43,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:31:43,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129808932] [2024-11-09 05:31:43,926 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:31:43,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977469314] [2024-11-09 05:31:43,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977469314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:31:43,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:31:43,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:31:43,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769417601] [2024-11-09 05:31:43,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:31:43,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:31:43,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:31:43,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:31:43,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:31:43,929 INFO L87 Difference]: Start difference. First operand 108 states and 135 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:31:44,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:31:44,037 INFO L93 Difference]: Finished difference Result 119 states and 142 transitions. [2024-11-09 05:31:44,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:31:44,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 30 [2024-11-09 05:31:44,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:31:44,039 INFO L225 Difference]: With dead ends: 119 [2024-11-09 05:31:44,039 INFO L226 Difference]: Without dead ends: 116 [2024-11-09 05:31:44,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:31:44,041 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 30 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:31:44,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 83 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:31:44,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-09 05:31:44,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 109. [2024-11-09 05:31:44,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 70 states have (on average 1.4857142857142858) internal successors, (104), 91 states have internal predecessors, (104), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 05:31:44,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 134 transitions. [2024-11-09 05:31:44,073 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 134 transitions. Word has length 30 [2024-11-09 05:31:44,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:31:44,076 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 134 transitions. [2024-11-09 05:31:44,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:31:44,077 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 134 transitions. [2024-11-09 05:31:44,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-09 05:31:44,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:31:44,078 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:31:44,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 05:31:44,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:31:44,278 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:31:44,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:31:44,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1695070897, now seen corresponding path program 1 times [2024-11-09 05:31:44,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:31:44,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974608956] [2024-11-09 05:31:44,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:44,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:31:44,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:31:44,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2029881016] [2024-11-09 05:31:44,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:44,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:31:44,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:31:44,323 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:31:44,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:31:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:31:44,390 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:31:44,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:31:44,627 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 05:31:44,628 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:31:44,920 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:31:44,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974608956] [2024-11-09 05:31:44,921 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:31:44,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029881016] [2024-11-09 05:31:44,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029881016] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:31:44,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2145843576] [2024-11-09 05:31:44,955 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 05:31:44,955 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:31:44,960 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:31:44,967 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:31:44,971 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:31:48,292 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:31:48,294 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:31:48,295 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:31:55,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2145843576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:31:55,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:31:55,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 22 [2024-11-09 05:31:55,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371466941] [2024-11-09 05:31:55,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:31:55,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 05:31:55,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:31:55,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 05:31:55,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2024-11-09 05:31:55,541 INFO L87 Difference]: Start difference. First operand 109 states and 134 transitions. Second operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-09 05:31:59,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 05:32:01,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 05:32:03,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 05:32:06,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:32:06,216 INFO L93 Difference]: Finished difference Result 135 states and 161 transitions. [2024-11-09 05:32:06,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 05:32:06,216 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) Word has length 37 [2024-11-09 05:32:06,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:32:06,218 INFO L225 Difference]: With dead ends: 135 [2024-11-09 05:32:06,218 INFO L226 Difference]: Without dead ends: 125 [2024-11-09 05:32:06,218 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=273, Invalid=1059, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 05:32:06,219 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 295 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:32:06,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 82 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2024-11-09 05:32:06,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-09 05:32:06,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 111. [2024-11-09 05:32:06,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 76 states have (on average 1.381578947368421) internal successors, (105), 92 states have internal predecessors, (105), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 05:32:06,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 137 transitions. [2024-11-09 05:32:06,250 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 137 transitions. Word has length 37 [2024-11-09 05:32:06,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:32:06,250 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 137 transitions. [2024-11-09 05:32:06,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-09 05:32:06,251 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 137 transitions. [2024-11-09 05:32:06,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 05:32:06,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:32:06,252 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:32:06,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 05:32:06,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:32:06,453 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:32:06,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:32:06,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1380873637, now seen corresponding path program 1 times [2024-11-09 05:32:06,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:32:06,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427124214] [2024-11-09 05:32:06,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:06,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:32:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:32:06,602 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-09 05:32:06,603 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:32:06,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427124214] [2024-11-09 05:32:06,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427124214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:32:06,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:32:06,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:32:06,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949822408] [2024-11-09 05:32:06,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:32:06,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:32:06,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:32:06,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:32:06,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:32:06,606 INFO L87 Difference]: Start difference. First operand 111 states and 137 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:32:06,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:32:06,944 INFO L93 Difference]: Finished difference Result 117 states and 140 transitions. [2024-11-09 05:32:06,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:32:06,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 42 [2024-11-09 05:32:06,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:32:06,946 INFO L225 Difference]: With dead ends: 117 [2024-11-09 05:32:06,946 INFO L226 Difference]: Without dead ends: 102 [2024-11-09 05:32:06,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:32:06,947 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 35 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:32:06,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 119 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:32:06,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-09 05:32:06,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 98. [2024-11-09 05:32:06,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 65 states have (on average 1.4153846153846155) internal successors, (92), 81 states have internal predecessors, (92), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 05:32:06,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 120 transitions. [2024-11-09 05:32:06,971 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 120 transitions. Word has length 42 [2024-11-09 05:32:06,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:32:06,972 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 120 transitions. [2024-11-09 05:32:06,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:32:06,972 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 120 transitions. [2024-11-09 05:32:06,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 05:32:06,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:32:06,973 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:32:06,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 05:32:06,974 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:32:06,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:32:06,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1165011212, now seen corresponding path program 1 times [2024-11-09 05:32:06,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:32:06,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116261171] [2024-11-09 05:32:06,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:06,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:32:06,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:32:07,100 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-09 05:32:07,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:32:07,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116261171] [2024-11-09 05:32:07,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116261171] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:32:07,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374069236] [2024-11-09 05:32:07,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:07,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:32:07,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:32:07,103 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:32:07,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 05:32:07,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:32:07,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:32:07,173 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:32:07,247 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-09 05:32:07,247 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:32:07,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1374069236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:32:07,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:32:07,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-09 05:32:07,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366494348] [2024-11-09 05:32:07,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:32:07,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:32:07,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:32:07,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:32:07,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:32:07,249 INFO L87 Difference]: Start difference. First operand 98 states and 120 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 05:32:07,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:32:07,330 INFO L93 Difference]: Finished difference Result 105 states and 128 transitions. [2024-11-09 05:32:07,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:32:07,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 59 [2024-11-09 05:32:07,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:32:07,332 INFO L225 Difference]: With dead ends: 105 [2024-11-09 05:32:07,332 INFO L226 Difference]: Without dead ends: 103 [2024-11-09 05:32:07,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:32:07,333 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 28 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:32:07,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 99 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:32:07,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-09 05:32:07,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 89. [2024-11-09 05:32:07,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 59 states have (on average 1.3898305084745763) internal successors, (82), 73 states have internal predecessors, (82), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 05:32:07,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 108 transitions. [2024-11-09 05:32:07,361 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 108 transitions. Word has length 59 [2024-11-09 05:32:07,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:32:07,362 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 108 transitions. [2024-11-09 05:32:07,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 05:32:07,362 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 108 transitions. [2024-11-09 05:32:07,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-09 05:32:07,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:32:07,365 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:32:07,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 05:32:07,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:32:07,566 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:32:07,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:32:07,567 INFO L85 PathProgramCache]: Analyzing trace with hash -781600900, now seen corresponding path program 1 times [2024-11-09 05:32:07,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:32:07,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629785158] [2024-11-09 05:32:07,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:07,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:32:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:32:07,639 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-09 05:32:07,639 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:32:07,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629785158] [2024-11-09 05:32:07,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629785158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:32:07,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:32:07,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:32:07,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073971979] [2024-11-09 05:32:07,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:32:07,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:32:07,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:32:07,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:32:07,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:32:07,641 INFO L87 Difference]: Start difference. First operand 89 states and 108 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-09 05:32:07,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:32:07,706 INFO L93 Difference]: Finished difference Result 89 states and 108 transitions. [2024-11-09 05:32:07,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:32:07,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 62 [2024-11-09 05:32:07,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:32:07,709 INFO L225 Difference]: With dead ends: 89 [2024-11-09 05:32:07,709 INFO L226 Difference]: Without dead ends: 88 [2024-11-09 05:32:07,709 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:32:07,710 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 2 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:32:07,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 97 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:32:07,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-09 05:32:07,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-11-09 05:32:07,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 59 states have (on average 1.3559322033898304) internal successors, (80), 72 states have internal predecessors, (80), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 05:32:07,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 106 transitions. [2024-11-09 05:32:07,734 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 106 transitions. Word has length 62 [2024-11-09 05:32:07,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:32:07,737 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 106 transitions. [2024-11-09 05:32:07,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-09 05:32:07,737 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 106 transitions. [2024-11-09 05:32:07,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 05:32:07,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:32:07,739 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:32:07,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 05:32:07,739 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:32:07,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:32:07,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1540175985, now seen corresponding path program 1 times [2024-11-09 05:32:07,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:32:07,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871844825] [2024-11-09 05:32:07,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:07,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:32:07,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:32:07,987 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-09 05:32:07,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:32:07,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871844825] [2024-11-09 05:32:07,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871844825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:32:07,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:32:07,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:32:07,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453645674] [2024-11-09 05:32:07,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:32:07,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:32:07,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:32:07,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:32:07,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:32:07,993 INFO L87 Difference]: Start difference. First operand 88 states and 106 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:32:08,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:32:08,467 INFO L93 Difference]: Finished difference Result 161 states and 202 transitions. [2024-11-09 05:32:08,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:32:08,468 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 63 [2024-11-09 05:32:08,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:32:08,469 INFO L225 Difference]: With dead ends: 161 [2024-11-09 05:32:08,470 INFO L226 Difference]: Without dead ends: 160 [2024-11-09 05:32:08,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:32:08,471 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 88 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:32:08,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 228 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:32:08,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-09 05:32:08,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 122. [2024-11-09 05:32:08,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 89 states have (on average 1.4382022471910112) internal successors, (128), 102 states have internal predecessors, (128), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 05:32:08,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 162 transitions. [2024-11-09 05:32:08,501 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 162 transitions. Word has length 63 [2024-11-09 05:32:08,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:32:08,502 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 162 transitions. [2024-11-09 05:32:08,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:32:08,502 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 162 transitions. [2024-11-09 05:32:08,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 05:32:08,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:32:08,503 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:32:08,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 05:32:08,504 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:32:08,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:32:08,508 INFO L85 PathProgramCache]: Analyzing trace with hash 500815390, now seen corresponding path program 1 times [2024-11-09 05:32:08,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:32:08,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717608307] [2024-11-09 05:32:08,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:08,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:32:08,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:32:08,757 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-09 05:32:08,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:32:08,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717608307] [2024-11-09 05:32:08,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717608307] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:32:08,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742732565] [2024-11-09 05:32:08,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:08,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:32:08,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:32:08,761 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:32:08,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 05:32:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:32:08,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:32:08,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:32:09,041 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-09 05:32:09,041 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:32:09,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742732565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:32:09,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:32:09,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-09 05:32:09,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348301069] [2024-11-09 05:32:09,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:32:09,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:32:09,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:32:09,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:32:09,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:32:09,044 INFO L87 Difference]: Start difference. First operand 122 states and 162 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:32:09,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:32:09,259 INFO L93 Difference]: Finished difference Result 140 states and 181 transitions. [2024-11-09 05:32:09,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:32:09,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 64 [2024-11-09 05:32:09,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:32:09,261 INFO L225 Difference]: With dead ends: 140 [2024-11-09 05:32:09,261 INFO L226 Difference]: Without dead ends: 139 [2024-11-09 05:32:09,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:32:09,262 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 39 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:32:09,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 96 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:32:09,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-09 05:32:09,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 122. [2024-11-09 05:32:09,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 89 states have (on average 1.4269662921348314) internal successors, (127), 102 states have internal predecessors, (127), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 05:32:09,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 161 transitions. [2024-11-09 05:32:09,298 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 161 transitions. Word has length 64 [2024-11-09 05:32:09,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:32:09,300 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 161 transitions. [2024-11-09 05:32:09,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:32:09,300 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 161 transitions. [2024-11-09 05:32:09,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 05:32:09,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:32:09,301 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:32:09,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 05:32:09,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:32:09,502 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:32:09,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:32:09,502 INFO L85 PathProgramCache]: Analyzing trace with hash -924991819, now seen corresponding path program 1 times [2024-11-09 05:32:09,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:32:09,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599793839] [2024-11-09 05:32:09,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:09,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:32:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:32:09,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [223256773] [2024-11-09 05:32:09,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:09,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:32:09,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:32:09,532 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:32:09,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 05:32:09,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:32:09,597 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 05:32:09,600 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:32:10,373 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-09 05:32:10,373 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:32:11,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:32:11,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599793839] [2024-11-09 05:32:11,101 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:32:11,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223256773] [2024-11-09 05:32:11,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223256773] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:32:11,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [248304723] [2024-11-09 05:32:11,107 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 05:32:11,108 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:32:11,108 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:32:11,109 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:32:11,109 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:32:14,924 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:32:14,925 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:32:14,926 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:32:22,015 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4669#(exists ((|v_ULTIMATE.start_main_~B~0#1_41| Int) (|v_ULTIMATE.start_main_~q~0#1_43| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_43| 9223372036854775808)) (<= 0 |ULTIMATE.start_main_~r~0#1|) (exists ((|v_ULTIMATE.start_main_~p~0#1_57| Int)) (and (or (and (or (= (mod |v_ULTIMATE.start_main_~p~0#1_57| 2) 0) (< 0 (+ |v_ULTIMATE.start_main_~p~0#1_57| 1))) (= |ULTIMATE.start_main_~p~0#1| (div |v_ULTIMATE.start_main_~p~0#1_57| 2))) (and (not (= (mod |v_ULTIMATE.start_main_~p~0#1_57| 2) 0)) (<= (+ |v_ULTIMATE.start_main_~p~0#1_57| 1) 0) (= (+ (div |v_ULTIMATE.start_main_~p~0#1_57| 2) 1) |ULTIMATE.start_main_~p~0#1|))) (<= (div |v_ULTIMATE.start_main_~p~0#1_57| 2) 9223372036854775807) (or (and (= (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_57| 2)) 0) (not (= (mod |v_ULTIMATE.start_main_~p~0#1_57| 2) 0))) (< 0 (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_57| 2)))))) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (<= (+ (* |v_ULTIMATE.start_main_~q~0#1_43| (mod |v_ULTIMATE.start_main_~B~0#1_41| 4294967296)) 9223372036854775809) 0)))' at error location [2024-11-09 05:32:22,015 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:32:22,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:32:22,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 05:32:22,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906065600] [2024-11-09 05:32:22,016 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:32:22,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:32:22,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:32:22,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:32:22,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=1629, Unknown=0, NotChecked=0, Total=1892 [2024-11-09 05:32:22,018 INFO L87 Difference]: Start difference. First operand 122 states and 161 transitions. Second operand has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-09 05:32:22,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:32:22,721 INFO L93 Difference]: Finished difference Result 215 states and 287 transitions. [2024-11-09 05:32:22,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 05:32:22,722 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 67 [2024-11-09 05:32:22,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:32:22,723 INFO L225 Difference]: With dead ends: 215 [2024-11-09 05:32:22,724 INFO L226 Difference]: Without dead ends: 214 [2024-11-09 05:32:22,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 844 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=280, Invalid=1790, Unknown=0, NotChecked=0, Total=2070 [2024-11-09 05:32:22,726 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 124 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:32:22,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 159 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:32:22,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-09 05:32:22,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 182. [2024-11-09 05:32:22,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 140 states have (on average 1.3928571428571428) internal successors, (195), 153 states have internal predecessors, (195), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-09 05:32:22,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 247 transitions. [2024-11-09 05:32:22,773 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 247 transitions. Word has length 67 [2024-11-09 05:32:22,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:32:22,774 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 247 transitions. [2024-11-09 05:32:22,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-09 05:32:22,774 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 247 transitions. [2024-11-09 05:32:22,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 05:32:22,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:32:22,777 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:32:22,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 05:32:22,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-09 05:32:22,982 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:32:22,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:32:22,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1390024762, now seen corresponding path program 1 times [2024-11-09 05:32:22,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:32:22,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538616188] [2024-11-09 05:32:22,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:22,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:32:23,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:32:23,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [81403477] [2024-11-09 05:32:23,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:23,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:32:23,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:32:23,011 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:32:23,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 05:32:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:32:23,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 05:32:23,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:32:23,794 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-09 05:32:23,794 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:32:24,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:32:24,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538616188] [2024-11-09 05:32:24,228 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:32:24,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81403477] [2024-11-09 05:32:24,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81403477] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:32:24,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [892438869] [2024-11-09 05:32:24,232 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 05:32:24,232 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:32:24,232 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:32:24,233 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:32:24,233 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:32:26,991 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:32:26,992 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:32:26,993 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:32:35,473 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5442#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~q~0#1_49| Int) (|v_ULTIMATE.start_main_~B~0#1_42| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_49| (mod |v_ULTIMATE.start_main_~B~0#1_42| 4294967296))) (<= |v_ULTIMATE.start_main_~q~0#1_49| 9223372036854775807))))' at error location [2024-11-09 05:32:35,473 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:32:35,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:32:35,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 05:32:35,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88287067] [2024-11-09 05:32:35,474 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:32:35,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:32:35,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:32:35,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:32:35,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=297, Invalid=1683, Unknown=0, NotChecked=0, Total=1980 [2024-11-09 05:32:35,476 INFO L87 Difference]: Start difference. First operand 182 states and 247 transitions. Second operand has 11 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 states have internal predecessors, (38), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-09 05:32:35,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:32:35,965 INFO L93 Difference]: Finished difference Result 249 states and 342 transitions. [2024-11-09 05:32:35,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:32:35,965 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 states have internal predecessors, (38), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 68 [2024-11-09 05:32:35,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:32:35,967 INFO L225 Difference]: With dead ends: 249 [2024-11-09 05:32:35,967 INFO L226 Difference]: Without dead ends: 248 [2024-11-09 05:32:35,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 849 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=306, Invalid=1764, Unknown=0, NotChecked=0, Total=2070 [2024-11-09 05:32:35,969 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 107 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:32:35,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 145 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:32:35,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-09 05:32:36,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 231. [2024-11-09 05:32:36,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 183 states have (on average 1.3770491803278688) internal successors, (252), 196 states have internal predecessors, (252), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-09 05:32:36,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 316 transitions. [2024-11-09 05:32:36,012 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 316 transitions. Word has length 68 [2024-11-09 05:32:36,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:32:36,013 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 316 transitions. [2024-11-09 05:32:36,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 states have internal predecessors, (38), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-09 05:32:36,013 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 316 transitions. [2024-11-09 05:32:36,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 05:32:36,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:32:36,015 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:32:36,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 05:32:36,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-09 05:32:36,220 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:32:36,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:32:36,220 INFO L85 PathProgramCache]: Analyzing trace with hash 141094743, now seen corresponding path program 1 times [2024-11-09 05:32:36,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:32:36,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96370861] [2024-11-09 05:32:36,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:36,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:32:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:32:36,326 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-09 05:32:36,327 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:32:36,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96370861] [2024-11-09 05:32:36,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96370861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:32:36,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:32:36,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:32:36,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333272955] [2024-11-09 05:32:36,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:32:36,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:32:36,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:32:36,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:32:36,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:32:36,329 INFO L87 Difference]: Start difference. First operand 231 states and 316 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-09 05:32:36,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:32:36,559 INFO L93 Difference]: Finished difference Result 231 states and 316 transitions. [2024-11-09 05:32:36,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:32:36,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 69 [2024-11-09 05:32:36,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:32:36,563 INFO L225 Difference]: With dead ends: 231 [2024-11-09 05:32:36,563 INFO L226 Difference]: Without dead ends: 230 [2024-11-09 05:32:36,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:32:36,564 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 66 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:32:36,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 85 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:32:36,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-09 05:32:36,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 226. [2024-11-09 05:32:36,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 179 states have (on average 1.3519553072625698) internal successors, (242), 191 states have internal predecessors, (242), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-09 05:32:36,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 306 transitions. [2024-11-09 05:32:36,617 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 306 transitions. Word has length 69 [2024-11-09 05:32:36,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:32:36,617 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 306 transitions. [2024-11-09 05:32:36,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-09 05:32:36,618 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 306 transitions. [2024-11-09 05:32:36,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 05:32:36,619 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:32:36,619 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:32:36,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 05:32:36,619 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:32:36,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:32:36,620 INFO L85 PathProgramCache]: Analyzing trace with hash 78969820, now seen corresponding path program 1 times [2024-11-09 05:32:36,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:32:36,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652857655] [2024-11-09 05:32:36,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:36,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:32:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:32:36,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [780598650] [2024-11-09 05:32:36,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:36,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:32:36,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:32:36,651 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:32:36,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 05:32:36,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:32:36,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-09 05:32:36,715 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:32:37,634 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-09 05:32:37,634 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:32:40,235 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-09 05:32:40,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:32:40,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652857655] [2024-11-09 05:32:40,235 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:32:40,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780598650] [2024-11-09 05:32:40,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780598650] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:32:40,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [594603567] [2024-11-09 05:32:40,238 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 05:32:40,238 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:32:40,239 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:32:40,239 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:32:40,239 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:32:42,906 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:32:42,907 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:32:42,910 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:33:07,085 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7058#(exists ((|v_ULTIMATE.start_main_~B~0#1_43| Int) (|v_ULTIMATE.start_main_~q~0#1_56| Int) (|v_ULTIMATE.start_main_~r~0#1_48| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_56| 9223372036854775808)) (<= 9223372036854775808 (+ |v_ULTIMATE.start_main_~r~0#1_48| (* (mod |v_ULTIMATE.start_main_~B~0#1_43| 4294967296) |v_ULTIMATE.start_main_~q~0#1_56|))) (<= |v_ULTIMATE.start_main_~q~0#1_56| 9223372036854775807) (<= (* (mod |v_ULTIMATE.start_main_~B~0#1_43| 4294967296) |v_ULTIMATE.start_main_~q~0#1_56|) 9223372036854775807)))' at error location [2024-11-09 05:33:07,085 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:33:07,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:33:07,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 21 [2024-11-09 05:33:07,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071865152] [2024-11-09 05:33:07,086 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:33:07,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 05:33:07,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:33:07,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 05:33:07,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=2405, Unknown=0, NotChecked=0, Total=2756 [2024-11-09 05:33:07,088 INFO L87 Difference]: Start difference. First operand 226 states and 306 transitions. Second operand has 22 states, 20 states have (on average 3.8) internal successors, (76), 22 states have internal predecessors, (76), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2024-11-09 05:33:13,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:33:13,576 INFO L93 Difference]: Finished difference Result 381 states and 513 transitions. [2024-11-09 05:33:13,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-09 05:33:13,577 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 3.8) internal successors, (76), 22 states have internal predecessors, (76), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 70 [2024-11-09 05:33:13,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:33:13,578 INFO L225 Difference]: With dead ends: 381 [2024-11-09 05:33:13,579 INFO L226 Difference]: Without dead ends: 260 [2024-11-09 05:33:13,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2173 ImplicationChecksByTransitivity, 28.9s TimeCoverageRelationStatistics Valid=814, Invalid=5506, Unknown=0, NotChecked=0, Total=6320 [2024-11-09 05:33:13,581 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 358 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:33:13,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 205 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-09 05:33:13,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-09 05:33:13,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 225. [2024-11-09 05:33:13,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 179 states have (on average 1.2849162011173185) internal successors, (230), 191 states have internal predecessors, (230), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-09 05:33:13,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 292 transitions. [2024-11-09 05:33:13,631 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 292 transitions. Word has length 70 [2024-11-09 05:33:13,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:33:13,632 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 292 transitions. [2024-11-09 05:33:13,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 3.8) internal successors, (76), 22 states have internal predecessors, (76), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2024-11-09 05:33:13,632 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 292 transitions. [2024-11-09 05:33:13,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 05:33:13,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:33:13,634 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:33:13,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 05:33:13,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-09 05:33:13,838 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:33:13,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:33:13,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1718543877, now seen corresponding path program 1 times [2024-11-09 05:33:13,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:33:13,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016546113] [2024-11-09 05:33:13,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:33:13,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:33:13,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:33:13,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [136337861] [2024-11-09 05:33:13,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:33:13,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:33:13,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:33:13,862 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:33:13,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 05:33:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:33:13,936 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:33:13,938 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:33:14,524 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-09 05:33:14,524 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:33:15,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:33:15,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016546113] [2024-11-09 05:33:15,283 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:33:15,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136337861] [2024-11-09 05:33:15,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136337861] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:33:15,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [461651857] [2024-11-09 05:33:15,285 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-09 05:33:15,286 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:33:15,286 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:33:15,286 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:33:15,287 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:33:17,473 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:33:17,474 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:33:17,474 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:33:28,470 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8201#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~d~0#1_90| Int) (|v_ULTIMATE.start_main_~q~0#1_62| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_62| 9223372036854775808)) (<= |v_ULTIMATE.start_main_~q~0#1_62| 9223372036854775807) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_62| |v_ULTIMATE.start_main_~d~0#1_90|)) 0))))' at error location [2024-11-09 05:33:28,470 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:33:28,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:33:28,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-09 05:33:28,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374593150] [2024-11-09 05:33:28,471 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:33:28,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 05:33:28,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:33:28,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 05:33:28,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=284, Invalid=1607, Unknown=1, NotChecked=0, Total=1892 [2024-11-09 05:33:28,473 INFO L87 Difference]: Start difference. First operand 225 states and 292 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-09 05:33:28,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:33:28,831 INFO L93 Difference]: Finished difference Result 230 states and 299 transitions. [2024-11-09 05:33:28,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 05:33:28,832 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 80 [2024-11-09 05:33:28,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:33:28,833 INFO L225 Difference]: With dead ends: 230 [2024-11-09 05:33:28,833 INFO L226 Difference]: Without dead ends: 229 [2024-11-09 05:33:28,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 761 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=311, Invalid=1850, Unknown=1, NotChecked=0, Total=2162 [2024-11-09 05:33:28,835 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 27 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:33:28,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 202 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:33:28,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-11-09 05:33:28,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 226. [2024-11-09 05:33:28,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 180 states have (on average 1.2833333333333334) internal successors, (231), 192 states have internal predecessors, (231), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-09 05:33:28,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 293 transitions. [2024-11-09 05:33:28,893 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 293 transitions. Word has length 80 [2024-11-09 05:33:28,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:33:28,894 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 293 transitions. [2024-11-09 05:33:28,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-09 05:33:28,894 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 293 transitions. [2024-11-09 05:33:28,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 05:33:28,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:33:28,895 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:33:28,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-09 05:33:29,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 05:33:29,096 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:33:29,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:33:29,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1735251390, now seen corresponding path program 1 times [2024-11-09 05:33:29,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:33:29,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650175529] [2024-11-09 05:33:29,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:33:29,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:33:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:33:29,230 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-09 05:33:29,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:33:29,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650175529] [2024-11-09 05:33:29,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650175529] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:33:29,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476452323] [2024-11-09 05:33:29,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:33:29,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:33:29,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:33:29,233 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:33:29,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 05:33:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:33:29,295 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:33:29,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:33:29,381 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-09 05:33:29,381 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:33:29,544 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-09 05:33:29,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476452323] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:33:29,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1981473783] [2024-11-09 05:33:29,547 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 05:33:29,547 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:33:29,548 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:33:29,548 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:33:29,548 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:33:31,716 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:33:31,717 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:33:31,718 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:33:36,276 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9280#(and (<= 1 |#StackHeapBarrier|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= |ULTIMATE.start_main_~q~0#1| 9223372036854775807) (exists ((|v_ULTIMATE.start_main_~d~0#1_101| Int)) (<= 9223372036854775808 (div |v_ULTIMATE.start_main_~d~0#1_101| 2))))' at error location [2024-11-09 05:33:36,276 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:33:36,276 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:33:36,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-09 05:33:36,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639138001] [2024-11-09 05:33:36,277 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:33:36,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 05:33:36,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:33:36,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 05:33:36,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=1264, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 05:33:36,279 INFO L87 Difference]: Start difference. First operand 226 states and 293 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 6 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2024-11-09 05:33:36,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:33:36,654 INFO L93 Difference]: Finished difference Result 329 states and 429 transitions. [2024-11-09 05:33:36,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 05:33:36,654 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 6 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) Word has length 81 [2024-11-09 05:33:36,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:33:36,656 INFO L225 Difference]: With dead ends: 329 [2024-11-09 05:33:36,656 INFO L226 Difference]: Without dead ends: 219 [2024-11-09 05:33:36,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 667 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=255, Invalid=1725, Unknown=0, NotChecked=0, Total=1980 [2024-11-09 05:33:36,657 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 70 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:33:36,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 212 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:33:36,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-09 05:33:36,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 197. [2024-11-09 05:33:36,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 154 states have (on average 1.2402597402597402) internal successors, (191), 165 states have internal predecessors, (191), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-09 05:33:36,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 249 transitions. [2024-11-09 05:33:36,703 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 249 transitions. Word has length 81 [2024-11-09 05:33:36,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:33:36,704 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 249 transitions. [2024-11-09 05:33:36,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 6 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2024-11-09 05:33:36,704 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 249 transitions. [2024-11-09 05:33:36,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 05:33:36,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:33:36,705 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:33:36,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-09 05:33:36,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:33:36,909 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:33:36,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:33:36,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1735252512, now seen corresponding path program 1 times [2024-11-09 05:33:36,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:33:36,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720418519] [2024-11-09 05:33:36,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:33:36,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:33:36,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:33:36,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1886103871] [2024-11-09 05:33:36,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:33:36,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:33:36,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:33:36,933 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:33:36,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 05:33:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:33:36,997 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 05:33:36,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:33:37,557 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-09 05:33:37,557 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:33:38,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:33:38,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720418519] [2024-11-09 05:33:38,949 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:33:38,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886103871] [2024-11-09 05:33:38,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886103871] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:33:38,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [87955160] [2024-11-09 05:33:38,951 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2024-11-09 05:33:38,951 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:33:38,952 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:33:38,952 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:33:38,952 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:33:40,848 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:33:40,848 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:33:40,849 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:33:56,122 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10297#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~d~0#1_112| Int) (|v_ULTIMATE.start_main_~q~0#1_73| Int)) (and (<= |v_ULTIMATE.start_main_~q~0#1_73| 9223372036854775807) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_73| |v_ULTIMATE.start_main_~d~0#1_112|)) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_73| 9223372036854775808)))))' at error location [2024-11-09 05:33:56,122 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:33:56,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:33:56,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-09 05:33:56,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527962880] [2024-11-09 05:33:56,122 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:33:56,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 05:33:56,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:33:56,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 05:33:56,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=2026, Unknown=1, NotChecked=0, Total=2352 [2024-11-09 05:33:56,124 INFO L87 Difference]: Start difference. First operand 197 states and 249 transitions. Second operand has 12 states, 10 states have (on average 4.5) internal successors, (45), 12 states have internal predecessors, (45), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-09 05:33:56,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:33:56,734 INFO L93 Difference]: Finished difference Result 308 states and 396 transitions. [2024-11-09 05:33:56,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 05:33:56,734 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 4.5) internal successors, (45), 12 states have internal predecessors, (45), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 81 [2024-11-09 05:33:56,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:33:56,735 INFO L225 Difference]: With dead ends: 308 [2024-11-09 05:33:56,736 INFO L226 Difference]: Without dead ends: 213 [2024-11-09 05:33:56,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1202 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=427, Invalid=2878, Unknown=1, NotChecked=0, Total=3306 [2024-11-09 05:33:56,738 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 102 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:33:56,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 216 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:33:56,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-09 05:33:56,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 209. [2024-11-09 05:33:56,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 164 states have (on average 1.25) internal successors, (205), 175 states have internal predecessors, (205), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-09 05:33:56,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 267 transitions. [2024-11-09 05:33:56,782 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 267 transitions. Word has length 81 [2024-11-09 05:33:56,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:33:56,782 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 267 transitions. [2024-11-09 05:33:56,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 4.5) internal successors, (45), 12 states have internal predecessors, (45), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-09 05:33:56,782 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 267 transitions. [2024-11-09 05:33:56,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 05:33:56,783 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:33:56,783 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:33:56,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-09 05:33:56,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:33:56,984 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:33:56,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:33:56,985 INFO L85 PathProgramCache]: Analyzing trace with hash 2041747101, now seen corresponding path program 1 times [2024-11-09 05:33:56,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:33:56,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641378523] [2024-11-09 05:33:56,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:33:56,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:33:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:33:57,143 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-09 05:33:57,143 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:33:57,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641378523] [2024-11-09 05:33:57,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641378523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:33:57,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:33:57,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:33:57,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162791201] [2024-11-09 05:33:57,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:33:57,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:33:57,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:33:57,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:33:57,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:33:57,145 INFO L87 Difference]: Start difference. First operand 209 states and 267 transitions. Second operand has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 05:33:57,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:33:57,675 INFO L93 Difference]: Finished difference Result 209 states and 267 transitions. [2024-11-09 05:33:57,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:33:57,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 82 [2024-11-09 05:33:57,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:33:57,677 INFO L225 Difference]: With dead ends: 209 [2024-11-09 05:33:57,677 INFO L226 Difference]: Without dead ends: 208 [2024-11-09 05:33:57,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:33:57,678 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 42 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:33:57,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 116 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:33:57,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-11-09 05:33:57,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2024-11-09 05:33:57,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 164 states have (on average 1.2439024390243902) internal successors, (204), 174 states have internal predecessors, (204), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-09 05:33:57,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 266 transitions. [2024-11-09 05:33:57,733 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 266 transitions. Word has length 82 [2024-11-09 05:33:57,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:33:57,733 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 266 transitions. [2024-11-09 05:33:57,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 05:33:57,734 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 266 transitions. [2024-11-09 05:33:57,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-09 05:33:57,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:33:57,735 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:33:57,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 05:33:57,736 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:33:57,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:33:57,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1130349182, now seen corresponding path program 1 times [2024-11-09 05:33:57,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:33:57,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097293779] [2024-11-09 05:33:57,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:33:57,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:33:57,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:33:57,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2034991261] [2024-11-09 05:33:57,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:33:57,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:33:57,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:33:57,762 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:33:57,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 05:33:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:33:57,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 05:33:57,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:33:58,471 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-09 05:33:58,471 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:34:00,615 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-09 05:34:00,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:34:00,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097293779] [2024-11-09 05:34:00,616 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:34:00,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034991261] [2024-11-09 05:34:00,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034991261] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:34:00,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1183539189] [2024-11-09 05:34:00,618 INFO L159 IcfgInterpreter]: Started Sifa with 45 locations of interest [2024-11-09 05:34:00,618 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:34:00,619 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:34:00,619 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:34:00,619 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:34:02,638 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:34:02,639 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:34:02,640 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:34:17,687 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12016#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~q~0#1_80| Int) (|v_ULTIMATE.start_main_~d~0#1_125| Int)) (and (<= |v_ULTIMATE.start_main_~q~0#1_80| 9223372036854775807) (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_80| |v_ULTIMATE.start_main_~d~0#1_125|))) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_80| 9223372036854775808)) (<= (* |v_ULTIMATE.start_main_~q~0#1_80| |v_ULTIMATE.start_main_~d~0#1_125|) 9223372036854775807))))' at error location [2024-11-09 05:34:17,687 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:34:17,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:34:17,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 18 [2024-11-09 05:34:17,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911703060] [2024-11-09 05:34:17,688 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:34:17,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 05:34:17,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:34:17,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 05:34:17,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=365, Invalid=2388, Unknown=3, NotChecked=0, Total=2756 [2024-11-09 05:34:17,689 INFO L87 Difference]: Start difference. First operand 208 states and 266 transitions. Second operand has 19 states, 17 states have (on average 5.294117647058823) internal successors, (90), 19 states have internal predecessors, (90), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-11-09 05:34:21,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:34:21,551 INFO L93 Difference]: Finished difference Result 231 states and 290 transitions. [2024-11-09 05:34:21,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 05:34:21,552 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 5.294117647058823) internal successors, (90), 19 states have internal predecessors, (90), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 83 [2024-11-09 05:34:21,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:34:21,553 INFO L225 Difference]: With dead ends: 231 [2024-11-09 05:34:21,553 INFO L226 Difference]: Without dead ends: 195 [2024-11-09 05:34:21,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 195 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1575 ImplicationChecksByTransitivity, 16.5s TimeCoverageRelationStatistics Valid=532, Invalid=3755, Unknown=3, NotChecked=0, Total=4290 [2024-11-09 05:34:21,556 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 112 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:34:21,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 317 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-09 05:34:21,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-09 05:34:21,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 176. [2024-11-09 05:34:21,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 136 states have (on average 1.2720588235294117) internal successors, (173), 146 states have internal predecessors, (173), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-09 05:34:21,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 227 transitions. [2024-11-09 05:34:21,608 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 227 transitions. Word has length 83 [2024-11-09 05:34:21,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:34:21,609 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 227 transitions. [2024-11-09 05:34:21,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 5.294117647058823) internal successors, (90), 19 states have internal predecessors, (90), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-11-09 05:34:21,609 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 227 transitions. [2024-11-09 05:34:21,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 05:34:21,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:34:21,610 INFO L215 NwaCegarLoop]: trace histogram [11, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:34:21,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-09 05:34:21,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:34:21,815 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:34:21,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:34:21,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1122569555, now seen corresponding path program 2 times [2024-11-09 05:34:21,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:34:21,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936063005] [2024-11-09 05:34:21,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:34:21,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:34:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:34:21,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [13512413] [2024-11-09 05:34:21,841 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:34:21,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:34:21,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:34:21,843 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:34:21,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 05:34:21,914 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 05:34:21,914 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:34:21,917 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 05:34:21,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:34:36,585 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-09 05:34:36,585 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:34:37,284 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:34:37,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936063005] [2024-11-09 05:34:37,285 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:34:37,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13512413] [2024-11-09 05:34:37,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13512413] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:34:37,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1126001295] [2024-11-09 05:34:37,287 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 05:34:37,287 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:34:37,287 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:34:37,287 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:34:37,288 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:34:39,298 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:34:39,299 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:34:39,300 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:34:56,675 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12880#(exists ((|v_ULTIMATE.start_main_~q~0#1_86| Int) (|v_ULTIMATE.start_main_~B~0#1_46| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_86| 9223372036854775808)) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_86| (mod |v_ULTIMATE.start_main_~B~0#1_46| 4294967296))) 0) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (exists ((|v_ULTIMATE.start_main_~p~0#1_135| Int)) (and (or (< 0 (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_135| 2))) (and (= (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_135| 2)) 0) (not (= (mod |v_ULTIMATE.start_main_~p~0#1_135| 2) 0)))) (<= (div |v_ULTIMATE.start_main_~p~0#1_135| 2) 9223372036854775807) (or (and (= (+ (div |v_ULTIMATE.start_main_~p~0#1_135| 2) 1) |ULTIMATE.start_main_~p~0#1|) (not (= (mod |v_ULTIMATE.start_main_~p~0#1_135| 2) 0)) (<= (+ |v_ULTIMATE.start_main_~p~0#1_135| 1) 0)) (and (= |ULTIMATE.start_main_~p~0#1| (div |v_ULTIMATE.start_main_~p~0#1_135| 2)) (or (= (mod |v_ULTIMATE.start_main_~p~0#1_135| 2) 0) (< 0 (+ |v_ULTIMATE.start_main_~p~0#1_135| 1)))))))))' at error location [2024-11-09 05:34:56,675 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:34:56,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:34:56,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 05:34:56,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647453213] [2024-11-09 05:34:56,675 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:34:56,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:34:56,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:34:56,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:34:56,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=1673, Unknown=2, NotChecked=0, Total=1980 [2024-11-09 05:34:56,677 INFO L87 Difference]: Start difference. First operand 176 states and 227 transitions. Second operand has 11 states, 9 states have (on average 4.555555555555555) internal successors, (41), 11 states have internal predecessors, (41), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 05:34:58,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:35:02,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 05:35:04,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 05:35:10,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:35:13,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:35:13,330 INFO L93 Difference]: Finished difference Result 212 states and 277 transitions. [2024-11-09 05:35:13,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 05:35:13,330 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.555555555555555) internal successors, (41), 11 states have internal predecessors, (41), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 84 [2024-11-09 05:35:13,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:35:13,332 INFO L225 Difference]: With dead ends: 212 [2024-11-09 05:35:13,332 INFO L226 Difference]: Without dead ends: 211 [2024-11-09 05:35:13,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 970 ImplicationChecksByTransitivity, 28.1s TimeCoverageRelationStatistics Valid=369, Invalid=2079, Unknown=2, NotChecked=0, Total=2450 [2024-11-09 05:35:13,333 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 64 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 15 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:35:13,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 180 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 361 Invalid, 4 Unknown, 0 Unchecked, 10.3s Time] [2024-11-09 05:35:13,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-09 05:35:13,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 196. [2024-11-09 05:35:13,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 154 states have (on average 1.2727272727272727) internal successors, (196), 164 states have internal predecessors, (196), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-09 05:35:13,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 254 transitions. [2024-11-09 05:35:13,382 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 254 transitions. Word has length 84 [2024-11-09 05:35:13,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:35:13,383 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 254 transitions. [2024-11-09 05:35:13,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.555555555555555) internal successors, (41), 11 states have internal predecessors, (41), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 05:35:13,383 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 254 transitions. [2024-11-09 05:35:13,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-09 05:35:13,384 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:35:13,384 INFO L215 NwaCegarLoop]: trace histogram [11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:35:13,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-09 05:35:13,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-09 05:35:13,589 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:35:13,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:35:13,589 INFO L85 PathProgramCache]: Analyzing trace with hash 439917916, now seen corresponding path program 2 times [2024-11-09 05:35:13,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:35:13,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641243583] [2024-11-09 05:35:13,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:35:13,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:35:13,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:35:13,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1600157284] [2024-11-09 05:35:13,611 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:35:13,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:35:13,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:35:13,613 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:35:13,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 05:35:13,677 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 05:35:13,677 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:35:13,678 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 05:35:13,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:35:30,371 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 26 proven. 5 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-09 05:35:30,371 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:35:31,485 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:35:31,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641243583] [2024-11-09 05:35:31,485 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:35:31,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600157284] [2024-11-09 05:35:31,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600157284] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:35:31,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1463197104] [2024-11-09 05:35:31,487 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 05:35:31,487 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:35:31,488 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:35:31,488 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:35:31,488 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:35:33,223 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:35:33,224 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:35:33,225 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:35:40,735 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13734#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~q~0#1_92| Int) (|v_ULTIMATE.start_main_~B~0#1_49| Int)) (and (<= |v_ULTIMATE.start_main_~q~0#1_92| 9223372036854775807) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_92| (mod |v_ULTIMATE.start_main_~B~0#1_49| 4294967296))))))' at error location [2024-11-09 05:35:40,736 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:35:40,736 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:35:40,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-09 05:35:40,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644293754] [2024-11-09 05:35:40,736 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:35:40,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:35:40,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:35:40,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:35:40,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=350, Invalid=2002, Unknown=0, NotChecked=0, Total=2352 [2024-11-09 05:35:40,738 INFO L87 Difference]: Start difference. First operand 196 states and 254 transitions. Second operand has 13 states, 10 states have (on average 4.2) internal successors, (42), 13 states have internal predecessors, (42), 4 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-09 05:35:45,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 05:35:47,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 05:35:49,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 05:35:51,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 05:35:59,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:36:01,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:36:10,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:36:10,393 INFO L93 Difference]: Finished difference Result 212 states and 274 transitions. [2024-11-09 05:36:10,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 05:36:10,393 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 4.2) internal successors, (42), 13 states have internal predecessors, (42), 4 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 85 [2024-11-09 05:36:10,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:36:10,394 INFO L225 Difference]: With dead ends: 212 [2024-11-09 05:36:10,394 INFO L226 Difference]: Without dead ends: 211 [2024-11-09 05:36:10,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1289 ImplicationChecksByTransitivity, 30.8s TimeCoverageRelationStatistics Valid=487, Invalid=2930, Unknown=5, NotChecked=0, Total=3422 [2024-11-09 05:36:10,396 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 130 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 21 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:36:10,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 144 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 380 Invalid, 6 Unknown, 0 Unchecked, 13.1s Time] [2024-11-09 05:36:10,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-09 05:36:10,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 196. [2024-11-09 05:36:10,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 154 states have (on average 1.2532467532467533) internal successors, (193), 164 states have internal predecessors, (193), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-09 05:36:10,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 251 transitions. [2024-11-09 05:36:10,460 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 251 transitions. Word has length 85 [2024-11-09 05:36:10,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:36:10,461 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 251 transitions. [2024-11-09 05:36:10,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 4.2) internal successors, (42), 13 states have internal predecessors, (42), 4 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-09 05:36:10,461 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 251 transitions. [2024-11-09 05:36:10,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-09 05:36:10,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:36:10,462 INFO L215 NwaCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:36:10,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-09 05:36:10,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-09 05:36:10,663 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:36:10,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:36:10,663 INFO L85 PathProgramCache]: Analyzing trace with hash 942518840, now seen corresponding path program 1 times [2024-11-09 05:36:10,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:36:10,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82022148] [2024-11-09 05:36:10,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:36:10,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:36:10,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:36:10,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1497054] [2024-11-09 05:36:10,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:36:10,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:36:10,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:36:10,707 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:36:10,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 05:36:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:36:10,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 05:36:10,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:36:11,402 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-09 05:36:11,402 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:36:11,942 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:36:11,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82022148] [2024-11-09 05:36:11,942 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:36:11,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497054] [2024-11-09 05:36:11,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497054] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:36:11,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [307931555] [2024-11-09 05:36:11,944 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 05:36:11,944 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:36:11,944 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:36:11,945 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:36:11,945 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:36:13,895 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:36:13,896 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:36:13,897 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:36:18,832 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14635#(and (<= 1 |#StackHeapBarrier|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (exists ((|v_ULTIMATE.start_main_~B~0#1_50| Int) (|v_ULTIMATE.start_main_~p~0#1_159| Int)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~p~0#1_159| (mod |v_ULTIMATE.start_main_~B~0#1_50| 4294967296)))) (<= |ULTIMATE.start_main_~q~0#1| 9223372036854775807))' at error location [2024-11-09 05:36:18,833 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:36:18,833 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:36:18,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-09 05:36:18,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450215609] [2024-11-09 05:36:18,833 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:36:18,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 05:36:18,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:36:18,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 05:36:18,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=1713, Unknown=0, NotChecked=0, Total=1980 [2024-11-09 05:36:18,835 INFO L87 Difference]: Start difference. First operand 196 states and 251 transitions. Second operand has 12 states, 10 states have (on average 5.0) internal successors, (50), 12 states have internal predecessors, (50), 7 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) [2024-11-09 05:36:19,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:36:19,840 INFO L93 Difference]: Finished difference Result 284 states and 380 transitions. [2024-11-09 05:36:19,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 05:36:19,840 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.0) internal successors, (50), 12 states have internal predecessors, (50), 7 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) Word has length 92 [2024-11-09 05:36:19,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:36:19,842 INFO L225 Difference]: With dead ends: 284 [2024-11-09 05:36:19,842 INFO L226 Difference]: Without dead ends: 282 [2024-11-09 05:36:19,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 156 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 897 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=330, Invalid=2532, Unknown=0, NotChecked=0, Total=2862 [2024-11-09 05:36:19,843 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 128 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:36:19,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 271 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:36:19,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-09 05:36:19,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 279. [2024-11-09 05:36:19,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 227 states have (on average 1.277533039647577) internal successors, (290), 237 states have internal predecessors, (290), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-09 05:36:19,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 368 transitions. [2024-11-09 05:36:19,918 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 368 transitions. Word has length 92 [2024-11-09 05:36:19,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:36:19,919 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 368 transitions. [2024-11-09 05:36:19,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.0) internal successors, (50), 12 states have internal predecessors, (50), 7 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) [2024-11-09 05:36:19,919 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 368 transitions. [2024-11-09 05:36:19,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 05:36:19,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:36:19,920 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:36:19,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-09 05:36:20,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-09 05:36:20,121 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:36:20,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:36:20,121 INFO L85 PathProgramCache]: Analyzing trace with hash -707701911, now seen corresponding path program 1 times [2024-11-09 05:36:20,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:36:20,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461711043] [2024-11-09 05:36:20,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:36:20,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:36:20,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:36:20,454 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-09 05:36:20,454 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:36:20,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461711043] [2024-11-09 05:36:20,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461711043] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:36:20,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676400716] [2024-11-09 05:36:20,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:36:20,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:36:20,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:36:20,455 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:36:20,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 05:36:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:36:20,519 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:36:20,520 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:36:20,932 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 18 proven. 17 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2024-11-09 05:36:20,933 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:36:22,341 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2024-11-09 05:36:22,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676400716] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:36:22,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1819592607] [2024-11-09 05:36:22,343 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 05:36:22,343 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:36:22,343 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:36:22,343 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:36:22,344 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:36:24,312 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:36:24,313 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:36:24,314 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:37:09,068 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16003#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~p~0#1_171| Int)) (and (or (and (not (= (mod |v_ULTIMATE.start_main_~p~0#1_171| 2) 0)) (<= (+ |v_ULTIMATE.start_main_~p~0#1_171| 1) 0) (= |ULTIMATE.start_main_~p~0#1| (+ (div |v_ULTIMATE.start_main_~p~0#1_171| 2) 1))) (and (or (< 0 (+ |v_ULTIMATE.start_main_~p~0#1_171| 1)) (= (mod |v_ULTIMATE.start_main_~p~0#1_171| 2) 0)) (= |ULTIMATE.start_main_~p~0#1| (div |v_ULTIMATE.start_main_~p~0#1_171| 2)))) (<= (div |v_ULTIMATE.start_main_~p~0#1_171| 2) 9223372036854775807) (or (and (not (= (mod |v_ULTIMATE.start_main_~p~0#1_171| 2) 0)) (= (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_171| 2)) 0)) (< 0 (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_171| 2)))))))' at error location [2024-11-09 05:37:09,068 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:37:09,068 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:37:09,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-11-09 05:37:09,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788642825] [2024-11-09 05:37:09,068 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:37:09,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 05:37:09,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:37:09,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 05:37:09,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=339, Invalid=2395, Unknown=22, NotChecked=0, Total=2756 [2024-11-09 05:37:09,071 INFO L87 Difference]: Start difference. First operand 279 states and 368 transitions. Second operand has 22 states, 21 states have (on average 6.523809523809524) internal successors, (137), 22 states have internal predecessors, (137), 11 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) [2024-11-09 05:37:11,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:37:11,923 INFO L93 Difference]: Finished difference Result 705 states and 938 transitions. [2024-11-09 05:37:11,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-09 05:37:11,924 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 6.523809523809524) internal successors, (137), 22 states have internal predecessors, (137), 11 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) Word has length 103 [2024-11-09 05:37:11,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:37:11,927 INFO L225 Difference]: With dead ends: 705 [2024-11-09 05:37:11,927 INFO L226 Difference]: Without dead ends: 704 [2024-11-09 05:37:11,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2277 ImplicationChecksByTransitivity, 46.6s TimeCoverageRelationStatistics Valid=848, Invalid=5292, Unknown=22, NotChecked=0, Total=6162 [2024-11-09 05:37:11,930 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 629 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:37:11,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 811 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 05:37:11,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2024-11-09 05:37:12,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 397. [2024-11-09 05:37:12,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 333 states have (on average 1.3393393393393394) internal successors, (446), 343 states have internal predecessors, (446), 51 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-09 05:37:12,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 548 transitions. [2024-11-09 05:37:12,057 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 548 transitions. Word has length 103 [2024-11-09 05:37:12,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:37:12,058 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 548 transitions. [2024-11-09 05:37:12,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 6.523809523809524) internal successors, (137), 22 states have internal predecessors, (137), 11 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) [2024-11-09 05:37:12,059 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 548 transitions. [2024-11-09 05:37:12,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 05:37:12,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:37:12,060 INFO L215 NwaCegarLoop]: trace histogram [14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:37:12,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-09 05:37:12,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-09 05:37:12,260 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:37:12,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:37:12,261 INFO L85 PathProgramCache]: Analyzing trace with hash -700017636, now seen corresponding path program 2 times [2024-11-09 05:37:12,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:37:12,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181088571] [2024-11-09 05:37:12,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:37:12,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:37:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:37:12,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [607959575] [2024-11-09 05:37:12,285 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:37:12,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:37:12,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:37:12,287 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:37:12,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-09 05:37:12,346 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 05:37:12,346 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:37:12,347 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 05:37:12,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:37:29,257 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 38 proven. 7 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-09 05:37:29,257 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:37:34,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:37:34,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181088571] [2024-11-09 05:37:34,444 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:37:34,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607959575] [2024-11-09 05:37:34,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607959575] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:37:34,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1824899514] [2024-11-09 05:37:34,445 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 05:37:34,445 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:37:34,446 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:37:34,446 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:37:34,446 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:37:36,235 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:37:36,236 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:37:36,237 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:38:04,471 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '17768#(exists ((|v_ULTIMATE.start_main_~q~0#1_107| Int) (|v_ULTIMATE.start_main_~B~0#1_53| Int) (|v_ULTIMATE.start_main_~r~0#1_93| Int)) (and (<= 1 |#StackHeapBarrier|) (<= (* (mod |v_ULTIMATE.start_main_~B~0#1_53| 4294967296) |v_ULTIMATE.start_main_~q~0#1_107|) 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_107| 9223372036854775808)) (<= 9223372036854775808 (+ |v_ULTIMATE.start_main_~r~0#1_93| (* (mod |v_ULTIMATE.start_main_~B~0#1_53| 4294967296) |v_ULTIMATE.start_main_~q~0#1_107|))) (<= |v_ULTIMATE.start_main_~q~0#1_107| 9223372036854775807)))' at error location [2024-11-09 05:38:04,471 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:38:04,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:38:04,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-09 05:38:04,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408943161] [2024-11-09 05:38:04,472 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:38:04,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:38:04,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:38:04,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:38:04,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=290, Invalid=2062, Unknown=0, NotChecked=0, Total=2352 [2024-11-09 05:38:04,473 INFO L87 Difference]: Start difference. First operand 397 states and 548 transitions. Second operand has 13 states, 10 states have (on average 4.4) internal successors, (44), 13 states have internal predecessors, (44), 4 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-09 05:38:06,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 05:38:10,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 05:38:13,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:38:13,610 INFO L93 Difference]: Finished difference Result 408 states and 559 transitions. [2024-11-09 05:38:13,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 05:38:13,611 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 4.4) internal successors, (44), 13 states have internal predecessors, (44), 4 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 104 [2024-11-09 05:38:13,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:38:13,613 INFO L225 Difference]: With dead ends: 408 [2024-11-09 05:38:13,613 INFO L226 Difference]: Without dead ends: 407 [2024-11-09 05:38:13,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1158 ImplicationChecksByTransitivity, 43.5s TimeCoverageRelationStatistics Valid=390, Invalid=2802, Unknown=0, NotChecked=0, Total=3192 [2024-11-09 05:38:13,614 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 164 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 39 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:38:13,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 211 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 526 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2024-11-09 05:38:13,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2024-11-09 05:38:13,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 397. [2024-11-09 05:38:13,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 333 states have (on average 1.3363363363363363) internal successors, (445), 343 states have internal predecessors, (445), 51 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-09 05:38:13,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 547 transitions. [2024-11-09 05:38:13,736 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 547 transitions. Word has length 104 [2024-11-09 05:38:13,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:38:13,736 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 547 transitions. [2024-11-09 05:38:13,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 4.4) internal successors, (44), 13 states have internal predecessors, (44), 4 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-09 05:38:13,736 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 547 transitions. [2024-11-09 05:38:13,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 05:38:13,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:38:13,737 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:38:13,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-09 05:38:13,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-09 05:38:13,938 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:38:13,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:38:13,939 INFO L85 PathProgramCache]: Analyzing trace with hash -463922650, now seen corresponding path program 1 times [2024-11-09 05:38:13,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:38:13,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291011863] [2024-11-09 05:38:13,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:38:13,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:38:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:38:14,286 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 15 proven. 18 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-09 05:38:14,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:38:14,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291011863] [2024-11-09 05:38:14,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291011863] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:38:14,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570718321] [2024-11-09 05:38:14,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:38:14,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:38:14,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:38:14,289 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:38:14,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 05:38:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:38:14,359 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:38:14,360 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:38:14,639 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 25 proven. 18 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-09 05:38:14,639 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:38:17,923 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-09 05:38:17,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570718321] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:38:17,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1179487419] [2024-11-09 05:38:17,925 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 05:38:17,925 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:38:17,926 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:38:17,926 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:38:17,926 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:38:19,784 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:38:19,785 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:38:19,786 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:38:35,288 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '19417#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~p~0#1_199| Int) (|v_ULTIMATE.start_main_~p~0#1_200| Int)) (and (or (and (not (= (mod |v_ULTIMATE.start_main_~p~0#1_199| 2) 0)) (= (+ (div |v_ULTIMATE.start_main_~p~0#1_199| 2) 1) |v_ULTIMATE.start_main_~p~0#1_200|) (<= (+ |v_ULTIMATE.start_main_~p~0#1_199| 1) 0)) (and (or (< 0 (+ |v_ULTIMATE.start_main_~p~0#1_199| 1)) (= (mod |v_ULTIMATE.start_main_~p~0#1_199| 2) 0)) (= |v_ULTIMATE.start_main_~p~0#1_200| (div |v_ULTIMATE.start_main_~p~0#1_199| 2)))) (or (< 0 (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_199| 2))) (and (not (= (mod |v_ULTIMATE.start_main_~p~0#1_199| 2) 0)) (= (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_199| 2)) 0))) (<= (div |v_ULTIMATE.start_main_~p~0#1_199| 2) 9223372036854775807))) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-09 05:38:35,288 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:38:35,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:38:35,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 8] total 20 [2024-11-09 05:38:35,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429424762] [2024-11-09 05:38:35,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:38:35,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-09 05:38:35,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:38:35,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-09 05:38:35,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=356, Invalid=2292, Unknown=4, NotChecked=0, Total=2652 [2024-11-09 05:38:35,291 INFO L87 Difference]: Start difference. First operand 397 states and 547 transitions. Second operand has 21 states, 20 states have (on average 8.0) internal successors, (160), 21 states have internal predecessors, (160), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-09 05:38:35,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:38:35,933 INFO L93 Difference]: Finished difference Result 397 states and 547 transitions. [2024-11-09 05:38:35,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 05:38:35,933 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 8.0) internal successors, (160), 21 states have internal predecessors, (160), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 104 [2024-11-09 05:38:35,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:38:35,935 INFO L225 Difference]: With dead ends: 397 [2024-11-09 05:38:35,935 INFO L226 Difference]: Without dead ends: 395 [2024-11-09 05:38:35,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1395 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=429, Invalid=2647, Unknown=4, NotChecked=0, Total=3080 [2024-11-09 05:38:35,936 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 77 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:38:35,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 300 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:38:35,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-11-09 05:38:36,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 395. [2024-11-09 05:38:36,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 333 states have (on average 1.2642642642642643) internal successors, (421), 341 states have internal predecessors, (421), 51 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-09 05:38:36,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 523 transitions. [2024-11-09 05:38:36,022 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 523 transitions. Word has length 104 [2024-11-09 05:38:36,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:38:36,023 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 523 transitions. [2024-11-09 05:38:36,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 8.0) internal successors, (160), 21 states have internal predecessors, (160), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-09 05:38:36,023 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 523 transitions. [2024-11-09 05:38:36,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-09 05:38:36,024 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:38:36,024 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:38:36,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-09 05:38:36,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-09 05:38:36,225 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:38:36,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:38:36,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1496700149, now seen corresponding path program 1 times [2024-11-09 05:38:36,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:38:36,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747858457] [2024-11-09 05:38:36,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:38:36,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:38:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:38:36,587 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-09 05:38:36,587 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:38:36,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747858457] [2024-11-09 05:38:36,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747858457] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:38:36,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798888728] [2024-11-09 05:38:36,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:38:36,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:38:36,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:38:36,590 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:38:36,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-09 05:38:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:38:36,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:38:36,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:38:36,973 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-09 05:38:36,974 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:38:38,785 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-09 05:38:38,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798888728] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:38:38,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1262898349] [2024-11-09 05:38:38,786 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 05:38:38,786 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:38:38,786 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:38:38,787 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:38:38,787 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:38:40,814 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:38:40,815 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:38:40,816 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:38:47,466 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21052#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~p~0#1_217| Int) (|v_ULTIMATE.start_main_~p~0#1_216| Int)) (and (or (and (or (= (mod |v_ULTIMATE.start_main_~p~0#1_216| 2) 0) (< 0 (+ |v_ULTIMATE.start_main_~p~0#1_216| 1))) (= |v_ULTIMATE.start_main_~p~0#1_217| (div |v_ULTIMATE.start_main_~p~0#1_216| 2))) (and (= (+ 1 (div |v_ULTIMATE.start_main_~p~0#1_216| 2)) |v_ULTIMATE.start_main_~p~0#1_217|) (not (= (mod |v_ULTIMATE.start_main_~p~0#1_216| 2) 0)) (<= (+ |v_ULTIMATE.start_main_~p~0#1_216| 1) 0))) (or (< (div |v_ULTIMATE.start_main_~p~0#1_216| 2) 9223372036854775807) (= 9223372036854775807 (div |v_ULTIMATE.start_main_~p~0#1_216| 2))) (or (and (not (= (mod |v_ULTIMATE.start_main_~p~0#1_216| 2) 0)) (= (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_216| 2)) 0)) (< 0 (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_216| 2)))))) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-09 05:38:47,466 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:38:47,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:38:47,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2024-11-09 05:38:47,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604371431] [2024-11-09 05:38:47,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:38:47,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 05:38:47,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:38:47,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 05:38:47,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=2391, Unknown=2, NotChecked=0, Total=2756 [2024-11-09 05:38:47,468 INFO L87 Difference]: Start difference. First operand 395 states and 523 transitions. Second operand has 22 states, 21 states have (on average 8.047619047619047) internal successors, (169), 22 states have internal predecessors, (169), 13 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) [2024-11-09 05:38:49,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:38:49,149 INFO L93 Difference]: Finished difference Result 646 states and 842 transitions. [2024-11-09 05:38:49,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 05:38:49,150 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 8.047619047619047) internal successors, (169), 22 states have internal predecessors, (169), 13 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) Word has length 105 [2024-11-09 05:38:49,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:38:49,152 INFO L225 Difference]: With dead ends: 646 [2024-11-09 05:38:49,152 INFO L226 Difference]: Without dead ends: 645 [2024-11-09 05:38:49,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1773 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=597, Invalid=3433, Unknown=2, NotChecked=0, Total=4032 [2024-11-09 05:38:49,154 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 342 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:38:49,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 465 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:38:49,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2024-11-09 05:38:49,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 560. [2024-11-09 05:38:49,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 475 states have (on average 1.2336842105263157) internal successors, (586), 483 states have internal predecessors, (586), 74 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-09 05:38:49,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 734 transitions. [2024-11-09 05:38:49,285 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 734 transitions. Word has length 105 [2024-11-09 05:38:49,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:38:49,285 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 734 transitions. [2024-11-09 05:38:49,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 8.047619047619047) internal successors, (169), 22 states have internal predecessors, (169), 13 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) [2024-11-09 05:38:49,286 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 734 transitions. [2024-11-09 05:38:49,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 05:38:49,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:38:49,286 INFO L215 NwaCegarLoop]: trace histogram [15, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:38:49,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-09 05:38:49,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-09 05:38:49,487 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:38:49,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:38:49,487 INFO L85 PathProgramCache]: Analyzing trace with hash -336105126, now seen corresponding path program 2 times [2024-11-09 05:38:49,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:38:49,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984691140] [2024-11-09 05:38:49,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:38:49,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:38:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:38:49,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [145162223] [2024-11-09 05:38:49,516 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:38:49,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:38:49,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:38:49,518 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:38:49,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-09 05:38:49,580 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 05:38:49,580 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:38:49,581 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 05:38:49,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:38:50,036 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 22 proven. 14 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-09 05:38:50,036 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:38:50,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:38:50,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984691140] [2024-11-09 05:38:50,152 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:38:50,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145162223] [2024-11-09 05:38:50,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145162223] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:38:50,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1141830266] [2024-11-09 05:38:50,154 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 05:38:50,154 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:38:50,154 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:38:50,154 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:38:50,154 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:38:52,008 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:38:52,009 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:38:52,010 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:38:57,392 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22893#(and (<= 1 |#StackHeapBarrier|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (exists ((|v_ULTIMATE.start_main_~B~0#1_56| Int) (|v_ULTIMATE.start_main_~p~0#1_225| Int)) (<= 9223372036854775808 (* (mod |v_ULTIMATE.start_main_~B~0#1_56| 4294967296) |v_ULTIMATE.start_main_~p~0#1_225|))) (<= |ULTIMATE.start_main_~q~0#1| 9223372036854775807))' at error location [2024-11-09 05:38:57,392 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:38:57,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:38:57,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-09 05:38:57,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438841494] [2024-11-09 05:38:57,392 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:38:57,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:38:57,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:38:57,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:38:57,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=1480, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 05:38:57,393 INFO L87 Difference]: Start difference. First operand 560 states and 734 transitions. Second operand has 10 states, 7 states have (on average 5.714285714285714) internal successors, (40), 10 states have internal predecessors, (40), 4 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-09 05:38:58,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:38:58,052 INFO L93 Difference]: Finished difference Result 561 states and 735 transitions. [2024-11-09 05:38:58,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 05:38:58,052 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 5.714285714285714) internal successors, (40), 10 states have internal predecessors, (40), 4 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 109 [2024-11-09 05:38:58,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:38:58,054 INFO L225 Difference]: With dead ends: 561 [2024-11-09 05:38:58,054 INFO L226 Difference]: Without dead ends: 560 [2024-11-09 05:38:58,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 733 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=261, Invalid=1719, Unknown=0, NotChecked=0, Total=1980 [2024-11-09 05:38:58,055 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 84 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:38:58,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 198 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:38:58,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-09 05:38:58,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 559. [2024-11-09 05:38:58,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 475 states have (on average 1.2147368421052631) internal successors, (577), 482 states have internal predecessors, (577), 74 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-09 05:38:58,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 725 transitions. [2024-11-09 05:38:58,236 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 725 transitions. Word has length 109 [2024-11-09 05:38:58,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:38:58,236 INFO L471 AbstractCegarLoop]: Abstraction has 559 states and 725 transitions. [2024-11-09 05:38:58,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 5.714285714285714) internal successors, (40), 10 states have internal predecessors, (40), 4 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-09 05:38:58,237 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 725 transitions. [2024-11-09 05:38:58,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-09 05:38:58,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:38:58,238 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:38:58,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-09 05:38:58,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:38:58,442 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:38:58,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:38:58,443 INFO L85 PathProgramCache]: Analyzing trace with hash -2138564542, now seen corresponding path program 3 times [2024-11-09 05:38:58,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:38:58,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321573569] [2024-11-09 05:38:58,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:38:58,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:38:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:38:58,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [617341976] [2024-11-09 05:38:58,475 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:38:58,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:38:58,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:38:58,477 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:38:58,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-09 05:38:58,556 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:38:58,556 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:38:58,557 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 05:38:58,559 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:38:59,604 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-09 05:38:59,604 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:39:00,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:39:00,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321573569] [2024-11-09 05:39:00,018 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:39:00,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617341976] [2024-11-09 05:39:00,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617341976] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:39:00,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [858117218] [2024-11-09 05:39:00,020 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 05:39:00,020 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:39:00,020 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:39:00,020 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:39:00,020 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:39:01,753 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:39:01,754 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:39:01,755 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:39:13,276 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '24653#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~q~0#1_134| Int) (|v_ULTIMATE.start_main_~B~0#1_57| Int)) (and (<= |v_ULTIMATE.start_main_~q~0#1_134| 9223372036854775807) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_134| (mod |v_ULTIMATE.start_main_~B~0#1_57| 4294967296))))))' at error location [2024-11-09 05:39:13,277 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:39:13,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:39:13,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-09 05:39:13,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977075785] [2024-11-09 05:39:13,277 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:39:13,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 05:39:13,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:39:13,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 05:39:13,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=315, Invalid=2036, Unknown=1, NotChecked=0, Total=2352 [2024-11-09 05:39:13,278 INFO L87 Difference]: Start difference. First operand 559 states and 725 transitions. Second operand has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-09 05:39:14,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:39:14,537 INFO L93 Difference]: Finished difference Result 583 states and 756 transitions. [2024-11-09 05:39:14,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 05:39:14,538 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) Word has length 108 [2024-11-09 05:39:14,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:39:14,540 INFO L225 Difference]: With dead ends: 583 [2024-11-09 05:39:14,540 INFO L226 Difference]: Without dead ends: 582 [2024-11-09 05:39:14,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1147 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=422, Invalid=3237, Unknown=1, NotChecked=0, Total=3660 [2024-11-09 05:39:14,541 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 154 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:39:14,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 371 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:39:14,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-11-09 05:39:14,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 574. [2024-11-09 05:39:14,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 488 states have (on average 1.2069672131147542) internal successors, (589), 495 states have internal predecessors, (589), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-09 05:39:14,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 741 transitions. [2024-11-09 05:39:14,721 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 741 transitions. Word has length 108 [2024-11-09 05:39:14,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:39:14,721 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 741 transitions. [2024-11-09 05:39:14,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-09 05:39:14,722 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 741 transitions. [2024-11-09 05:39:14,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-09 05:39:14,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:39:14,723 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:39:14,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-09 05:39:14,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:39:14,924 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:39:14,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:39:14,924 INFO L85 PathProgramCache]: Analyzing trace with hash 2128812516, now seen corresponding path program 3 times [2024-11-09 05:39:14,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:39:14,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060148765] [2024-11-09 05:39:14,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:39:14,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:39:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:39:14,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1538726825] [2024-11-09 05:39:14,963 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:39:14,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:39:14,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:39:14,966 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:39:14,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-09 05:39:15,045 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:39:15,045 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:39:15,047 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-09 05:39:15,050 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:39:16,371 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-09 05:39:16,371 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:40:39,253 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-09 05:40:39,254 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:40:39,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060148765] [2024-11-09 05:40:39,254 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:40:39,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538726825] [2024-11-09 05:40:39,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538726825] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:40:39,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1688130727] [2024-11-09 05:40:39,256 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 05:40:39,257 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:40:39,257 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:40:39,257 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:40:39,257 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:40:41,122 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:40:41,124 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:40:41,126 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:41:15,218 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '26781#(exists ((|v_ULTIMATE.start_main_~r~0#1_124| Int) (|v_ULTIMATE.start_main_~q~0#1_143| Int) (|v_ULTIMATE.start_main_~B~0#1_58| Int)) (and (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~q~0#1_143| (mod |v_ULTIMATE.start_main_~B~0#1_58| 4294967296)) |v_ULTIMATE.start_main_~r~0#1_124|)) (<= 1 |#StackHeapBarrier|) (<= (* |v_ULTIMATE.start_main_~q~0#1_143| (mod |v_ULTIMATE.start_main_~B~0#1_58| 4294967296)) 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_143| 9223372036854775808)) (<= |v_ULTIMATE.start_main_~q~0#1_143| 9223372036854775807)))' at error location [2024-11-09 05:41:15,218 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:41:15,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:41:15,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 33 [2024-11-09 05:41:15,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087029338] [2024-11-09 05:41:15,218 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:41:15,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-09 05:41:15,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:41:15,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-09 05:41:15,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=499, Invalid=3660, Unknown=1, NotChecked=0, Total=4160 [2024-11-09 05:41:15,221 INFO L87 Difference]: Start difference. First operand 574 states and 741 transitions. Second operand has 34 states, 33 states have (on average 3.757575757575758) internal successors, (124), 34 states have internal predecessors, (124), 11 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 11 states have call predecessors, (29), 11 states have call successors, (29) [2024-11-09 05:41:28,720 WARN L286 SmtUtils]: Spent 11.05s on a formula simplification. DAG size of input: 192 DAG size of output: 97 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:41:30,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 05:41:47,050 WARN L286 SmtUtils]: Spent 5.53s on a formula simplification. DAG size of input: 158 DAG size of output: 93 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:42:01,888 WARN L286 SmtUtils]: Spent 12.35s on a formula simplification. DAG size of input: 171 DAG size of output: 106 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:42:12,386 WARN L286 SmtUtils]: Spent 8.11s on a formula simplification. DAG size of input: 140 DAG size of output: 121 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:42:48,109 WARN L286 SmtUtils]: Spent 28.38s on a formula simplification. DAG size of input: 205 DAG size of output: 117 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:42:50,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 05:42:58,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 05:43:00,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 05:43:19,329 WARN L286 SmtUtils]: Spent 17.48s on a formula simplification. DAG size of input: 140 DAG size of output: 111 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:43:20,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 05:43:42,789 WARN L286 SmtUtils]: Spent 11.34s on a formula simplification. DAG size of input: 129 DAG size of output: 117 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:43:57,187 WARN L286 SmtUtils]: Spent 9.86s on a formula simplification. DAG size of input: 174 DAG size of output: 89 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:44:22,025 WARN L286 SmtUtils]: Spent 17.89s on a formula simplification. DAG size of input: 206 DAG size of output: 92 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:44:56,243 WARN L286 SmtUtils]: Spent 19.41s on a formula simplification. DAG size of input: 132 DAG size of output: 111 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:45:07,991 WARN L286 SmtUtils]: Spent 6.37s on a formula simplification. DAG size of input: 159 DAG size of output: 79 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:45:12,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:45:12,890 INFO L93 Difference]: Finished difference Result 882 states and 1133 transitions. [2024-11-09 05:45:12,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-09 05:45:12,891 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 3.757575757575758) internal successors, (124), 34 states have internal predecessors, (124), 11 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 11 states have call predecessors, (29), 11 states have call successors, (29) Word has length 110 [2024-11-09 05:45:12,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:45:12,896 INFO L225 Difference]: With dead ends: 882 [2024-11-09 05:45:12,896 INFO L226 Difference]: Without dead ends: 651 [2024-11-09 05:45:12,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2894 ImplicationChecksByTransitivity, 237.8s TimeCoverageRelationStatistics Valid=1305, Invalid=8196, Unknown=5, NotChecked=0, Total=9506 [2024-11-09 05:45:12,900 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 649 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 2327 mSolverCounterSat, 303 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 2632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 2327 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:45:12,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 624 Invalid, 2632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 2327 Invalid, 2 Unknown, 0 Unchecked, 43.7s Time] [2024-11-09 05:45:12,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2024-11-09 05:45:13,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 593. [2024-11-09 05:45:13,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 505 states have (on average 1.194059405940594) internal successors, (603), 512 states have internal predecessors, (603), 78 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-09 05:45:13,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 759 transitions. [2024-11-09 05:45:13,245 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 759 transitions. Word has length 110 [2024-11-09 05:45:13,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:45:13,246 INFO L471 AbstractCegarLoop]: Abstraction has 593 states and 759 transitions. [2024-11-09 05:45:13,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 3.757575757575758) internal successors, (124), 34 states have internal predecessors, (124), 11 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 11 states have call predecessors, (29), 11 states have call successors, (29) [2024-11-09 05:45:13,247 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 759 transitions. [2024-11-09 05:45:13,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-09 05:45:13,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:45:13,248 INFO L215 NwaCegarLoop]: trace histogram [15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:45:13,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-09 05:45:13,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:45:13,452 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:45:13,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:45:13,453 INFO L85 PathProgramCache]: Analyzing trace with hash -796133251, now seen corresponding path program 1 times [2024-11-09 05:45:13,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:45:13,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670737254] [2024-11-09 05:45:13,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:13,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:45:13,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:45:13,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [912807847] [2024-11-09 05:45:13,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:13,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:45:13,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:45:13,500 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:45:13,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-09 05:45:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:45:13,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 05:45:13,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:45:15,669 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-11-09 05:45:15,669 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:45:21,668 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:45:21,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670737254] [2024-11-09 05:45:21,668 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:45:21,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912807847] [2024-11-09 05:45:21,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912807847] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:45:21,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [393923548] [2024-11-09 05:45:21,669 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-09 05:45:21,670 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:45:21,670 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:45:21,670 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:45:21,670 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:45:23,816 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:45:23,817 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:45:23,819 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:45:37,029 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '29141#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~d~0#1_258| Int) (|v_ULTIMATE.start_main_~q~0#1_149| Int)) (and (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_149| |v_ULTIMATE.start_main_~d~0#1_258|)) 0) (= (+ |ULTIMATE.start_main_~r~0#1| (* |v_ULTIMATE.start_main_~q~0#1_149| (mod |ULTIMATE.start_main_~B~0#1| 4294967296))) (mod |ULTIMATE.start_main_~A~0#1| 4294967296)) (= |v_ULTIMATE.start_main_~d~0#1_258| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)))))' at error location [2024-11-09 05:45:37,029 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:45:37,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:45:37,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-09 05:45:37,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414941100] [2024-11-09 05:45:37,030 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:45:37,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 05:45:37,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:45:37,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 05:45:37,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=350, Invalid=2509, Unknown=3, NotChecked=0, Total=2862 [2024-11-09 05:45:37,031 INFO L87 Difference]: Start difference. First operand 593 states and 759 transitions. Second operand has 15 states, 14 states have (on average 4.571428571428571) internal successors, (64), 15 states have internal predecessors, (64), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-09 05:45:38,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:45:38,324 INFO L93 Difference]: Finished difference Result 598 states and 765 transitions. [2024-11-09 05:45:38,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 05:45:38,325 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.571428571428571) internal successors, (64), 15 states have internal predecessors, (64), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 116 [2024-11-09 05:45:38,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:45:38,327 INFO L225 Difference]: With dead ends: 598 [2024-11-09 05:45:38,327 INFO L226 Difference]: Without dead ends: 597 [2024-11-09 05:45:38,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 223 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 983 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=362, Invalid=2605, Unknown=3, NotChecked=0, Total=2970 [2024-11-09 05:45:38,329 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 32 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 1088 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:45:38,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 397 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1088 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 05:45:38,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2024-11-09 05:45:38,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 594. [2024-11-09 05:45:38,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 506 states have (on average 1.1936758893280632) internal successors, (604), 513 states have internal predecessors, (604), 78 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-09 05:45:38,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 760 transitions. [2024-11-09 05:45:38,500 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 760 transitions. Word has length 116 [2024-11-09 05:45:38,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:45:38,500 INFO L471 AbstractCegarLoop]: Abstraction has 594 states and 760 transitions. [2024-11-09 05:45:38,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.571428571428571) internal successors, (64), 15 states have internal predecessors, (64), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-09 05:45:38,500 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 760 transitions. [2024-11-09 05:45:38,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-09 05:45:38,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:45:38,502 INFO L215 NwaCegarLoop]: trace histogram [16, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:45:38,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-09 05:45:38,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-09 05:45:38,702 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:45:38,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:45:38,703 INFO L85 PathProgramCache]: Analyzing trace with hash -437748220, now seen corresponding path program 1 times [2024-11-09 05:45:38,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:45:38,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352757508] [2024-11-09 05:45:38,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:38,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:45:38,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:45:39,000 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 14 proven. 54 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2024-11-09 05:45:39,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:45:39,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352757508] [2024-11-09 05:45:39,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352757508] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:45:39,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989322444] [2024-11-09 05:45:39,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:39,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:45:39,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:45:39,003 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:45:39,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-09 05:45:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:45:39,078 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 05:45:39,081 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:45:39,253 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2024-11-09 05:45:39,253 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:45:39,861 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 14 proven. 54 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2024-11-09 05:45:39,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989322444] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:45:39,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [707534525] [2024-11-09 05:45:39,863 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 05:45:39,863 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:45:39,863 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:45:39,863 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:45:39,864 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:45:41,883 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:45:41,884 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:45:41,885 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:45:50,654 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '31315#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~p~0#1_284| Int)) (<= 9223372036854775808 (div |v_ULTIMATE.start_main_~p~0#1_284| 2))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-09 05:45:50,655 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:45:50,655 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:45:50,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 15 [2024-11-09 05:45:50,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11811898] [2024-11-09 05:45:50,655 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:45:50,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 05:45:50,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:45:50,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 05:45:50,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=1846, Unknown=0, NotChecked=0, Total=2162 [2024-11-09 05:45:50,657 INFO L87 Difference]: Start difference. First operand 594 states and 760 transitions. Second operand has 16 states, 15 states have (on average 11.333333333333334) internal successors, (170), 16 states have internal predecessors, (170), 13 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 13 states have call predecessors, (48), 13 states have call successors, (48) [2024-11-09 05:45:51,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:45:51,115 INFO L93 Difference]: Finished difference Result 835 states and 1073 transitions. [2024-11-09 05:45:51,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 05:45:51,116 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 11.333333333333334) internal successors, (170), 16 states have internal predecessors, (170), 13 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 13 states have call predecessors, (48), 13 states have call successors, (48) Word has length 117 [2024-11-09 05:45:51,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:45:51,118 INFO L225 Difference]: With dead ends: 835 [2024-11-09 05:45:51,119 INFO L226 Difference]: Without dead ends: 500 [2024-11-09 05:45:51,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1011 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=316, Invalid=1846, Unknown=0, NotChecked=0, Total=2162 [2024-11-09 05:45:51,120 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 139 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:45:51,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 387 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:45:51,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2024-11-09 05:45:51,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 475. [2024-11-09 05:45:51,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 400 states have (on average 1.13) internal successors, (452), 406 states have internal predecessors, (452), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-09 05:45:51,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 584 transitions. [2024-11-09 05:45:51,305 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 584 transitions. Word has length 117 [2024-11-09 05:45:51,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:45:51,306 INFO L471 AbstractCegarLoop]: Abstraction has 475 states and 584 transitions. [2024-11-09 05:45:51,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 11.333333333333334) internal successors, (170), 16 states have internal predecessors, (170), 13 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 13 states have call predecessors, (48), 13 states have call successors, (48) [2024-11-09 05:45:51,306 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 584 transitions. [2024-11-09 05:45:51,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-09 05:45:51,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:45:51,307 INFO L215 NwaCegarLoop]: trace histogram [15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:45:51,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-09 05:45:51,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-09 05:45:51,507 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:45:51,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:45:51,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1089673118, now seen corresponding path program 1 times [2024-11-09 05:45:51,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:45:51,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468646098] [2024-11-09 05:45:51,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:51,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:45:51,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:45:51,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1440708615] [2024-11-09 05:45:51,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:51,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:45:51,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:45:51,543 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:45:51,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-09 05:45:51,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:45:51,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-09 05:45:51,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:45:54,582 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 14 proven. 62 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-09 05:45:54,583 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:45:57,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:45:57,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468646098] [2024-11-09 05:45:57,434 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:45:57,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440708615] [2024-11-09 05:45:57,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440708615] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:45:57,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1751150462] [2024-11-09 05:45:57,436 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2024-11-09 05:45:57,436 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:45:57,436 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:45:57,436 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:45:57,436 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:45:59,181 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:45:59,183 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:45:59,184 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:46:13,556 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '33432#(and (exists ((|v_ULTIMATE.start_main_~d~0#1_285| Int) (|v_ULTIMATE.start_main_~q~0#1_162| Int)) (and (= |v_ULTIMATE.start_main_~d~0#1_285| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_162| |v_ULTIMATE.start_main_~d~0#1_285|)) (= (+ (* |v_ULTIMATE.start_main_~q~0#1_162| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) |ULTIMATE.start_main_~r~0#1|) (mod |ULTIMATE.start_main_~A~0#1| 4294967296)))) (<= 1 |#StackHeapBarrier|))' at error location [2024-11-09 05:46:13,557 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:46:13,557 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:46:13,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2024-11-09 05:46:13,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435475380] [2024-11-09 05:46:13,557 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:46:13,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 05:46:13,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:46:13,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 05:46:13,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=423, Invalid=2997, Unknown=2, NotChecked=0, Total=3422 [2024-11-09 05:46:13,559 INFO L87 Difference]: Start difference. First operand 475 states and 584 transitions. Second operand has 19 states, 16 states have (on average 4.1875) internal successors, (67), 18 states have internal predecessors, (67), 9 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 8 states have call predecessors, (18), 9 states have call successors, (18) [2024-11-09 05:46:15,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:46:15,261 INFO L93 Difference]: Finished difference Result 481 states and 589 transitions. [2024-11-09 05:46:15,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 05:46:15,262 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 4.1875) internal successors, (67), 18 states have internal predecessors, (67), 9 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 8 states have call predecessors, (18), 9 states have call successors, (18) Word has length 117 [2024-11-09 05:46:15,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:46:15,263 INFO L225 Difference]: With dead ends: 481 [2024-11-09 05:46:15,263 INFO L226 Difference]: Without dead ends: 465 [2024-11-09 05:46:15,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 221 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1406 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=433, Invalid=3105, Unknown=2, NotChecked=0, Total=3540 [2024-11-09 05:46:15,264 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 60 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:46:15,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 294 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 05:46:15,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2024-11-09 05:46:15,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 464. [2024-11-09 05:46:15,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 391 states have (on average 1.1304347826086956) internal successors, (442), 397 states have internal predecessors, (442), 64 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-09 05:46:15,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 570 transitions. [2024-11-09 05:46:15,556 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 570 transitions. Word has length 117 [2024-11-09 05:46:15,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:46:15,557 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 570 transitions. [2024-11-09 05:46:15,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 4.1875) internal successors, (67), 18 states have internal predecessors, (67), 9 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 8 states have call predecessors, (18), 9 states have call successors, (18) [2024-11-09 05:46:15,557 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 570 transitions. [2024-11-09 05:46:15,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-09 05:46:15,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:46:15,559 INFO L215 NwaCegarLoop]: trace histogram [15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:46:15,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-09 05:46:15,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-09 05:46:15,764 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:46:15,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:46:15,764 INFO L85 PathProgramCache]: Analyzing trace with hash 643255811, now seen corresponding path program 2 times [2024-11-09 05:46:15,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:46:15,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389519719] [2024-11-09 05:46:15,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:46:15,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:46:15,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:46:15,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1341478482] [2024-11-09 05:46:15,811 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:46:15,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:46:15,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:46:15,813 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:46:15,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-09 05:46:15,903 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-09 05:46:15,903 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:46:15,904 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:46:15,907 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:46:16,034 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-11-09 05:46:16,035 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:46:16,035 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:46:16,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389519719] [2024-11-09 05:46:16,035 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:46:16,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341478482] [2024-11-09 05:46:16,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341478482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:46:16,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:46:16,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:46:16,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900965813] [2024-11-09 05:46:16,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:46:16,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:46:16,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:46:16,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:46:16,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:46:16,037 INFO L87 Difference]: Start difference. First operand 464 states and 570 transitions. Second operand has 6 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 05:46:16,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:46:16,726 INFO L93 Difference]: Finished difference Result 468 states and 574 transitions. [2024-11-09 05:46:16,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:46:16,727 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 120 [2024-11-09 05:46:16,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:46:16,729 INFO L225 Difference]: With dead ends: 468 [2024-11-09 05:46:16,729 INFO L226 Difference]: Without dead ends: 467 [2024-11-09 05:46:16,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:46:16,730 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 57 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:46:16,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 88 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:46:16,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2024-11-09 05:46:16,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 463. [2024-11-09 05:46:16,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 391 states have (on average 1.1278772378516624) internal successors, (441), 396 states have internal predecessors, (441), 64 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-09 05:46:16,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 569 transitions. [2024-11-09 05:46:16,911 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 569 transitions. Word has length 120 [2024-11-09 05:46:16,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:46:16,911 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 569 transitions. [2024-11-09 05:46:16,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 05:46:16,912 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 569 transitions. [2024-11-09 05:46:16,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-09 05:46:16,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:46:16,913 INFO L215 NwaCegarLoop]: trace histogram [15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:46:16,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-09 05:46:17,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:46:17,114 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:46:17,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:46:17,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1533906216, now seen corresponding path program 2 times [2024-11-09 05:46:17,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:46:17,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311133486] [2024-11-09 05:46:17,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:46:17,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:46:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:46:17,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [940424044] [2024-11-09 05:46:17,149 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:46:17,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:46:17,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:46:17,151 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:46:17,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-09 05:46:17,281 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-09 05:46:17,281 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:46:17,282 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:46:17,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:46:17,377 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2024-11-09 05:46:17,377 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:46:17,377 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:46:17,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311133486] [2024-11-09 05:46:17,377 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:46:17,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940424044] [2024-11-09 05:46:17,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940424044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:46:17,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:46:17,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:46:17,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452293774] [2024-11-09 05:46:17,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:46:17,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:46:17,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:46:17,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:46:17,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:46:17,379 INFO L87 Difference]: Start difference. First operand 463 states and 569 transitions. Second operand has 6 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 05:46:18,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:46:18,488 INFO L93 Difference]: Finished difference Result 470 states and 576 transitions. [2024-11-09 05:46:18,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:46:18,489 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 121 [2024-11-09 05:46:18,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:46:18,491 INFO L225 Difference]: With dead ends: 470 [2024-11-09 05:46:18,491 INFO L226 Difference]: Without dead ends: 468 [2024-11-09 05:46:18,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:46:18,493 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 58 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:46:18,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 90 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:46:18,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-11-09 05:46:18,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 435. [2024-11-09 05:46:18,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 368 states have (on average 1.1195652173913044) internal successors, (412), 372 states have internal predecessors, (412), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-09 05:46:18,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 532 transitions. [2024-11-09 05:46:18,761 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 532 transitions. Word has length 121 [2024-11-09 05:46:18,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:46:18,762 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 532 transitions. [2024-11-09 05:46:18,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 05:46:18,762 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 532 transitions. [2024-11-09 05:46:18,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-09 05:46:18,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:46:18,763 INFO L215 NwaCegarLoop]: trace histogram [15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:46:18,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-09 05:46:18,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:46:18,964 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:46:18,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:46:18,965 INFO L85 PathProgramCache]: Analyzing trace with hash -910087046, now seen corresponding path program 2 times [2024-11-09 05:46:18,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:46:18,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500373007] [2024-11-09 05:46:18,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:46:18,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:46:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:46:18,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [95675715] [2024-11-09 05:46:18,998 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:46:18,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:46:18,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:46:19,000 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:46:19,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-09 05:46:19,092 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-09 05:46:19,093 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:46:19,094 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 05:46:19,097 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:46:19,738 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 26 proven. 10 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2024-11-09 05:46:19,738 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:46:20,000 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2024-11-09 05:46:20,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:46:20,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500373007] [2024-11-09 05:46:20,000 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:46:20,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95675715] [2024-11-09 05:46:20,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95675715] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 05:46:20,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:46:20,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-11-09 05:46:20,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076180035] [2024-11-09 05:46:20,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:46:20,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:46:20,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:46:20,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:46:20,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-09 05:46:20,002 INFO L87 Difference]: Start difference. First operand 435 states and 532 transitions. Second operand has 6 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 05:46:20,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:46:20,526 INFO L93 Difference]: Finished difference Result 435 states and 532 transitions. [2024-11-09 05:46:20,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:46:20,527 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 123 [2024-11-09 05:46:20,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:46:20,529 INFO L225 Difference]: With dead ends: 435 [2024-11-09 05:46:20,529 INFO L226 Difference]: Without dead ends: 382 [2024-11-09 05:46:20,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-09 05:46:20,530 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 20 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:46:20,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 100 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:46:20,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-11-09 05:46:20,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2024-11-09 05:46:20,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 322 states have (on average 1.108695652173913) internal successors, (357), 325 states have internal predecessors, (357), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-09 05:46:20,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 465 transitions. [2024-11-09 05:46:20,718 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 465 transitions. Word has length 123 [2024-11-09 05:46:20,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:46:20,718 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 465 transitions. [2024-11-09 05:46:20,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 05:46:20,719 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 465 transitions. [2024-11-09 05:46:20,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-09 05:46:20,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:46:20,720 INFO L215 NwaCegarLoop]: trace histogram [16, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:46:20,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-09 05:46:20,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-09 05:46:20,925 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:46:20,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:46:20,925 INFO L85 PathProgramCache]: Analyzing trace with hash -175942812, now seen corresponding path program 4 times [2024-11-09 05:46:20,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:46:20,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974621796] [2024-11-09 05:46:20,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:46:20,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:46:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:46:20,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1412411440] [2024-11-09 05:46:20,958 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 05:46:20,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:46:20,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:46:20,961 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:46:20,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d591ea9-87ef-4cd3-8c29-2a17012b2065/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-09 05:46:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:46:21,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 05:46:21,055 INFO L278 TraceCheckSpWp]: Computing forward predicates...