./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/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_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/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_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:44:55,546 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:44:55,621 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 06:44:55,634 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:44:55,635 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:44:55,679 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:44:55,680 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:44:55,680 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:44:55,683 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:44:55,684 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:44:55,686 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:44:55,687 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:44:55,687 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:44:55,687 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:44:55,688 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:44:55,690 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:44:55,691 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:44:55,691 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:44:55,694 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:44:55,695 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:44:55,695 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:44:55,696 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:44:55,697 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:44:55,697 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:44:55,697 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:44:55,697 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:44:55,698 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:44:55,698 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:44:55,698 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:44:55,698 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:44:55,699 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:44:55,699 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:44:55,700 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 06:44:55,700 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:44:55,701 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:44:55,702 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:44:55,702 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:44:55,703 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:44:55,703 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:44:55,703 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:44:55,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:44:55,704 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:44:55,704 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:44:55,705 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:44:55,705 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:44:55,706 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:44:55,706 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:44:55,706 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:44:55,706 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:44:55,707 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_038eae2e-ecfe-4e71-80d8-6e6c06812e48/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 [2024-11-09 06:44:56,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:44:56,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:44:56,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:44:56,127 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:44:56,128 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:44:56,130 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound20.c Unable to find full path for "g++" [2024-11-09 06:44:58,384 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:44:58,616 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:44:58,617 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound20.c [2024-11-09 06:44:58,627 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/data/7dd8661b8/31605323bba94f9094e83814700be122/FLAG5325970f3 [2024-11-09 06:44:58,647 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/data/7dd8661b8/31605323bba94f9094e83814700be122 [2024-11-09 06:44:58,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:44:58,653 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:44:58,655 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:44:58,655 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:44:58,662 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:44:58,663 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:44:58" (1/1) ... [2024-11-09 06:44:58,665 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bccea17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:58, skipping insertion in model container [2024-11-09 06:44:58,665 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:44:58" (1/1) ... [2024-11-09 06:44:58,694 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:44:58,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:44:58,945 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:44:58,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:44:58,988 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:44:58,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:58 WrapperNode [2024-11-09 06:44:58,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:44:58,990 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:44:58,991 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:44:58,991 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:44:58,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:58" (1/1) ... [2024-11-09 06:44:59,005 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:58" (1/1) ... [2024-11-09 06:44:59,032 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2024-11-09 06:44:59,033 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:44:59,034 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:44:59,034 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:44:59,035 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:44:59,043 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:58" (1/1) ... [2024-11-09 06:44:59,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:58" (1/1) ... [2024-11-09 06:44:59,045 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:58" (1/1) ... [2024-11-09 06:44:59,045 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:58" (1/1) ... [2024-11-09 06:44:59,049 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:58" (1/1) ... [2024-11-09 06:44:59,054 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:58" (1/1) ... [2024-11-09 06:44:59,055 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:58" (1/1) ... [2024-11-09 06:44:59,056 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:58" (1/1) ... [2024-11-09 06:44:59,059 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:44:59,060 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:44:59,060 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:44:59,060 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:44:59,061 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:58" (1/1) ... [2024-11-09 06:44:59,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:44:59,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:44:59,114 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:44:59,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:44:59,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:44:59,163 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:44:59,163 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:44:59,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:44:59,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:44:59,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:44:59,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 06:44:59,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 06:44:59,270 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:44:59,273 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:44:59,605 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-09 06:44:59,608 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:44:59,688 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:44:59,688 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:44:59,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:44:59 BoogieIcfgContainer [2024-11-09 06:44:59,689 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:44:59,692 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:44:59,693 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:44:59,697 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:44:59,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:44:58" (1/3) ... [2024-11-09 06:44:59,698 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f6b441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:44:59, skipping insertion in model container [2024-11-09 06:44:59,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:58" (2/3) ... [2024-11-09 06:44:59,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f6b441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:44:59, skipping insertion in model container [2024-11-09 06:44:59,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:44:59" (3/3) ... [2024-11-09 06:44:59,701 INFO L112 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound20.c [2024-11-09 06:44:59,730 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:44:59,731 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-11-09 06:44:59,805 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:44:59,813 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;@37e1b0ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:44:59,813 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-09 06:44:59,819 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 28 states have (on average 1.8214285714285714) internal successors, (51), 48 states have internal predecessors, (51), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:44:59,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 06:44:59,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:44:59,830 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:44:59,831 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:44:59,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:44:59,839 INFO L85 PathProgramCache]: Analyzing trace with hash 229463047, now seen corresponding path program 1 times [2024-11-09 06:44:59,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:44:59,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321480132] [2024-11-09 06:44:59,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:44:59,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:00,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:00,063 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:45:00,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:45:00,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321480132] [2024-11-09 06:45:00,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321480132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:45:00,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:45:00,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:45:00,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945547197] [2024-11-09 06:45:00,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:45:00,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:45:00,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:45:00,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:45:00,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:45:00,101 INFO L87 Difference]: Start difference. First operand has 55 states, 28 states have (on average 1.8214285714285714) internal successors, (51), 48 states have internal predecessors, (51), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:45:00,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:45:00,159 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2024-11-09 06:45:00,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:45:00,162 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 10 [2024-11-09 06:45:00,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:45:00,176 INFO L225 Difference]: With dead ends: 68 [2024-11-09 06:45:00,177 INFO L226 Difference]: Without dead ends: 52 [2024-11-09 06:45:00,181 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 06:45:00,188 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:45:00,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:45:00,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-09 06:45:00,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-09 06:45:00,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 46 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 06:45:00,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2024-11-09 06:45:00,243 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 10 [2024-11-09 06:45:00,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:45:00,246 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2024-11-09 06:45:00,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:45:00,246 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2024-11-09 06:45:00,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 06:45:00,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:45:00,249 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:45:00,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:45:00,249 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:45:00,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:00,251 INFO L85 PathProgramCache]: Analyzing trace with hash 229459900, now seen corresponding path program 1 times [2024-11-09 06:45:00,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:45:00,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924327990] [2024-11-09 06:45:00,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:00,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:45:00,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2012339852] [2024-11-09 06:45:00,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:00,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:00,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:45:00,309 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:45:00,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:45:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:00,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:45:00,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:45:00,451 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:45:00,452 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:45:00,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:45:00,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924327990] [2024-11-09 06:45:00,454 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:45:00,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012339852] [2024-11-09 06:45:00,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012339852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:45:00,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:45:00,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:45:00,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259378010] [2024-11-09 06:45:00,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:45:00,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:45:00,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:45:00,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:45:00,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:45:00,463 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:45:00,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:45:00,636 INFO L93 Difference]: Finished difference Result 86 states and 96 transitions. [2024-11-09 06:45:00,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:45:00,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 10 [2024-11-09 06:45:00,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:45:00,639 INFO L225 Difference]: With dead ends: 86 [2024-11-09 06:45:00,639 INFO L226 Difference]: Without dead ends: 80 [2024-11-09 06:45:00,640 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:45:00,642 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 26 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:45:00,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 61 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:45:00,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-09 06:45:00,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 72. [2024-11-09 06:45:00,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 46 states have (on average 1.7173913043478262) internal successors, (79), 65 states have internal predecessors, (79), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:45:00,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 87 transitions. [2024-11-09 06:45:00,656 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 87 transitions. Word has length 10 [2024-11-09 06:45:00,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:45:00,657 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 87 transitions. [2024-11-09 06:45:00,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:45:00,657 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 87 transitions. [2024-11-09 06:45:00,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 06:45:00,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:45:00,658 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:45:00,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 06:45:00,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:00,863 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:45:00,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:00,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1467633310, now seen corresponding path program 1 times [2024-11-09 06:45:00,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:45:00,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145707715] [2024-11-09 06:45:00,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:00,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:01,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:45:01,002 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:45:01,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145707715] [2024-11-09 06:45:01,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145707715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:45:01,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:45:01,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:45:01,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261074494] [2024-11-09 06:45:01,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:45:01,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:45:01,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:45:01,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:45:01,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:45:01,005 INFO L87 Difference]: Start difference. First operand 72 states and 87 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:45:01,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:45:01,209 INFO L93 Difference]: Finished difference Result 116 states and 148 transitions. [2024-11-09 06:45:01,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:45:01,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 12 [2024-11-09 06:45:01,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:45:01,215 INFO L225 Difference]: With dead ends: 116 [2024-11-09 06:45:01,215 INFO L226 Difference]: Without dead ends: 109 [2024-11-09 06:45:01,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:45:01,221 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 34 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:45:01,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 59 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:45:01,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-09 06:45:01,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 105. [2024-11-09 06:45:01,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 77 states have (on average 1.5974025974025974) internal successors, (123), 96 states have internal predecessors, (123), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 06:45:01,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 135 transitions. [2024-11-09 06:45:01,252 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 135 transitions. Word has length 12 [2024-11-09 06:45:01,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:45:01,253 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 135 transitions. [2024-11-09 06:45:01,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:45:01,254 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 135 transitions. [2024-11-09 06:45:01,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 06:45:01,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:45:01,255 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:45:01,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:45:01,256 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:45:01,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:01,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1748007595, now seen corresponding path program 1 times [2024-11-09 06:45:01,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:45:01,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513627270] [2024-11-09 06:45:01,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:01,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:01,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:45:01,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:45:01,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513627270] [2024-11-09 06:45:01,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513627270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:45:01,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:45:01,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:45:01,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519007291] [2024-11-09 06:45:01,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:45:01,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:45:01,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:45:01,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:45:01,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:45:01,502 INFO L87 Difference]: Start difference. First operand 105 states and 135 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:45:01,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:45:01,997 INFO L93 Difference]: Finished difference Result 111 states and 136 transitions. [2024-11-09 06:45:01,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:45:01,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2024-11-09 06:45:01,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:45:01,999 INFO L225 Difference]: With dead ends: 111 [2024-11-09 06:45:01,999 INFO L226 Difference]: Without dead ends: 102 [2024-11-09 06:45:01,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:45:02,001 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 20 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:45:02,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 76 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:45:02,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-09 06:45:02,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2024-11-09 06:45:02,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 72 states have (on average 1.5694444444444444) internal successors, (113), 91 states have internal predecessors, (113), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 06:45:02,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions. [2024-11-09 06:45:02,014 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 13 [2024-11-09 06:45:02,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:45:02,015 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions. [2024-11-09 06:45:02,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:45:02,015 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions. [2024-11-09 06:45:02,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 06:45:02,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:45:02,016 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:45:02,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:45:02,017 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:45:02,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:02,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1646339456, now seen corresponding path program 1 times [2024-11-09 06:45:02,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:45:02,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797242122] [2024-11-09 06:45:02,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:02,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:02,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:45:02,221 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:45:02,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797242122] [2024-11-09 06:45:02,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797242122] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:45:02,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996359534] [2024-11-09 06:45:02,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:02,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:02,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:45:02,224 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:45:02,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:45:02,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:02,293 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:45:02,294 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:45:02,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:45:02,478 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:45:02,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996359534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:45:02,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:45:02,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-09 06:45:02,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268002911] [2024-11-09 06:45:02,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:45:02,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:45:02,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:45:02,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:45:02,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:45:02,481 INFO L87 Difference]: Start difference. First operand 100 states and 125 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:45:02,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:45:02,666 INFO L93 Difference]: Finished difference Result 103 states and 129 transitions. [2024-11-09 06:45:02,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:45:02,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-11-09 06:45:02,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:45:02,668 INFO L225 Difference]: With dead ends: 103 [2024-11-09 06:45:02,668 INFO L226 Difference]: Without dead ends: 102 [2024-11-09 06:45:02,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:45:02,670 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 72 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:45:02,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 42 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:45:02,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-09 06:45:02,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2024-11-09 06:45:02,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 72 states have (on average 1.5555555555555556) internal successors, (112), 91 states have internal predecessors, (112), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 06:45:02,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 124 transitions. [2024-11-09 06:45:02,689 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 124 transitions. Word has length 14 [2024-11-09 06:45:02,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:45:02,691 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 124 transitions. [2024-11-09 06:45:02,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:45:02,692 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 124 transitions. [2024-11-09 06:45:02,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 06:45:02,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:45:02,695 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:45:02,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 06:45:02,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:02,895 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:45:02,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:02,896 INFO L85 PathProgramCache]: Analyzing trace with hash -503084361, now seen corresponding path program 1 times [2024-11-09 06:45:02,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:45:02,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517386441] [2024-11-09 06:45:02,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:02,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:45:02,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2128620144] [2024-11-09 06:45:02,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:02,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:02,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:45:02,930 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:45:02,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 06:45:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:02,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:45:02,993 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:45:03,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:45:03,114 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:45:03,115 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:45:03,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517386441] [2024-11-09 06:45:03,115 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:45:03,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128620144] [2024-11-09 06:45:03,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128620144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:45:03,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:45:03,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:45:03,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494765704] [2024-11-09 06:45:03,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:45:03,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:45:03,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:45:03,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:45:03,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:45:03,122 INFO L87 Difference]: Start difference. First operand 100 states and 124 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:45:03,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:45:03,273 INFO L93 Difference]: Finished difference Result 101 states and 124 transitions. [2024-11-09 06:45:03,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:45:03,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-09 06:45:03,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:45:03,276 INFO L225 Difference]: With dead ends: 101 [2024-11-09 06:45:03,276 INFO L226 Difference]: Without dead ends: 100 [2024-11-09 06:45:03,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:45:03,277 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 65 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:45:03,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 47 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:45:03,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-09 06:45:03,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-09 06:45:03,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 72 states have (on average 1.5416666666666667) internal successors, (111), 91 states have internal predecessors, (111), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 06:45:03,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 123 transitions. [2024-11-09 06:45:03,305 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 123 transitions. Word has length 15 [2024-11-09 06:45:03,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:45:03,306 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 123 transitions. [2024-11-09 06:45:03,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:45:03,310 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 123 transitions. [2024-11-09 06:45:03,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 06:45:03,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:45:03,311 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:45:03,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 06:45:03,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:03,512 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:45:03,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:03,513 INFO L85 PathProgramCache]: Analyzing trace with hash 982078532, now seen corresponding path program 1 times [2024-11-09 06:45:03,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:45:03,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300104733] [2024-11-09 06:45:03,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:03,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:03,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:03,731 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:45:03,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:45:03,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300104733] [2024-11-09 06:45:03,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300104733] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:45:03,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150532222] [2024-11-09 06:45:03,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:03,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:03,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:45:03,735 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:45:03,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 06:45:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:03,788 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:45:03,789 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:45:03,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:45:03,866 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:45:03,999 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:45:03,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150532222] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:45:03,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1668572591] [2024-11-09 06:45:04,033 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2024-11-09 06:45:04,034 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:45:04,039 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:45:04,047 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:45:04,048 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:45:04,728 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 44 for LOIs [2024-11-09 06:45:04,769 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:45:04,815 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:45:06,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1668572591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:45:06,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:45:06,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 4, 4] total 16 [2024-11-09 06:45:06,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62208035] [2024-11-09 06:45:06,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:45:06,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:45:06,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:45:06,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:45:06,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:45:06,035 INFO L87 Difference]: Start difference. First operand 100 states and 123 transitions. Second operand has 12 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 06:45:06,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:45:06,561 INFO L93 Difference]: Finished difference Result 106 states and 128 transitions. [2024-11-09 06:45:06,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:45:06,562 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 25 [2024-11-09 06:45:06,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:45:06,563 INFO L225 Difference]: With dead ends: 106 [2024-11-09 06:45:06,563 INFO L226 Difference]: Without dead ends: 104 [2024-11-09 06:45:06,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 59 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:45:06,565 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 74 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:45:06,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 70 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:45:06,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-09 06:45:06,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-11-09 06:45:06,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 75 states have (on average 1.52) internal successors, (114), 94 states have internal predecessors, (114), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 06:45:06,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 126 transitions. [2024-11-09 06:45:06,585 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 126 transitions. Word has length 25 [2024-11-09 06:45:06,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:45:06,586 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 126 transitions. [2024-11-09 06:45:06,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 06:45:06,587 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 126 transitions. [2024-11-09 06:45:06,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 06:45:06,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:45:06,588 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:45:06,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 06:45:06,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-09 06:45:06,793 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:45:06,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:06,794 INFO L85 PathProgramCache]: Analyzing trace with hash 981770692, now seen corresponding path program 1 times [2024-11-09 06:45:06,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:45:06,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357322516] [2024-11-09 06:45:06,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:06,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:06,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:06,888 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:45:06,888 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:45:06,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357322516] [2024-11-09 06:45:06,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357322516] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:45:06,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512066920] [2024-11-09 06:45:06,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:06,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:06,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:45:06,891 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:45:06,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 06:45:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:06,962 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:45:06,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:45:07,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:45:07,013 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:45:07,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:45:07,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512066920] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:45:07,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1445800151] [2024-11-09 06:45:07,105 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2024-11-09 06:45:07,106 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:45:07,106 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:45:07,106 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:45:07,107 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:45:07,499 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 44 for LOIs [2024-11-09 06:45:07,507 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:45:07,533 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:45:08,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1445800151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:45:08,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:45:08,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 4, 4] total 16 [2024-11-09 06:45:08,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551332010] [2024-11-09 06:45:08,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:45:08,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:45:08,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:45:08,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:45:08,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:45:08,671 INFO L87 Difference]: Start difference. First operand 104 states and 126 transitions. Second operand has 12 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 06:45:09,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:45:09,194 INFO L93 Difference]: Finished difference Result 110 states and 132 transitions. [2024-11-09 06:45:09,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:45:09,195 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 25 [2024-11-09 06:45:09,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:45:09,196 INFO L225 Difference]: With dead ends: 110 [2024-11-09 06:45:09,196 INFO L226 Difference]: Without dead ends: 108 [2024-11-09 06:45:09,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 59 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:45:09,198 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 80 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:45:09,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 67 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:45:09,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-09 06:45:09,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-09 06:45:09,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 79 states have (on average 1.4936708860759493) internal successors, (118), 98 states have internal predecessors, (118), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 06:45:09,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 130 transitions. [2024-11-09 06:45:09,231 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 130 transitions. Word has length 25 [2024-11-09 06:45:09,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:45:09,231 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 130 transitions. [2024-11-09 06:45:09,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 06:45:09,232 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 130 transitions. [2024-11-09 06:45:09,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 06:45:09,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:45:09,232 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:45:09,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 06:45:09,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:09,439 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:45:09,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:09,440 INFO L85 PathProgramCache]: Analyzing trace with hash -796525974, now seen corresponding path program 1 times [2024-11-09 06:45:09,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:45:09,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062893840] [2024-11-09 06:45:09,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:09,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:09,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:45:09,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [13916468] [2024-11-09 06:45:09,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:09,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:09,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:45:09,460 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:45:09,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 06:45:09,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:09,528 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:45:09,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:45:09,708 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:45:09,708 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:45:09,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:45:09,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062893840] [2024-11-09 06:45:09,936 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:45:09,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13916468] [2024-11-09 06:45:09,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13916468] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:45:09,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1698293299] [2024-11-09 06:45:09,939 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 06:45:09,940 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:45:09,940 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:45:09,941 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:45:09,941 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:45:11,427 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-09 06:45:11,447 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:45:11,480 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:45:14,614 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2400#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~y2~0#1| 0) (exists ((|v_ULTIMATE.start_main_~x2~0#1_39| Int) (|v_ULTIMATE.start_main_~y1~0#1_50| Int)) (and (<= |v_ULTIMATE.start_main_~y1~0#1_50| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_50|) (<= (+ (* |v_ULTIMATE.start_main_~x2~0#1_39| |v_ULTIMATE.start_main_~y1~0#1_50|) 2147483649) 0) (<= 0 (+ |v_ULTIMATE.start_main_~x2~0#1_39| 2147483648)))) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:45:14,614 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:45:14,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:45:14,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-09 06:45:14,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317204603] [2024-11-09 06:45:14,615 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:45:14,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:45:14,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:45:14,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:45:14,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=592, Unknown=0, NotChecked=0, Total=756 [2024-11-09 06:45:14,617 INFO L87 Difference]: Start difference. First operand 108 states and 130 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 06:45:14,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:45:14,817 INFO L93 Difference]: Finished difference Result 116 states and 133 transitions. [2024-11-09 06:45:14,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:45:14,818 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2024-11-09 06:45:14,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:45:14,822 INFO L225 Difference]: With dead ends: 116 [2024-11-09 06:45:14,822 INFO L226 Difference]: Without dead ends: 109 [2024-11-09 06:45:14,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=175, Invalid=637, Unknown=0, NotChecked=0, Total=812 [2024-11-09 06:45:14,824 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 84 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:45:14,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 36 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:45:14,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-09 06:45:14,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2024-11-09 06:45:14,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 80 states have (on average 1.375) internal successors, (110), 94 states have internal predecessors, (110), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 06:45:14,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 122 transitions. [2024-11-09 06:45:14,846 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 122 transitions. Word has length 28 [2024-11-09 06:45:14,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:45:14,847 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 122 transitions. [2024-11-09 06:45:14,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 06:45:14,847 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 122 transitions. [2024-11-09 06:45:14,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 06:45:14,848 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:45:14,849 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:45:14,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 06:45:15,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:15,050 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:45:15,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:15,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1077498629, now seen corresponding path program 1 times [2024-11-09 06:45:15,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:45:15,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367064653] [2024-11-09 06:45:15,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:15,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:45:15,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [429914149] [2024-11-09 06:45:15,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:15,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:15,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:45:15,085 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:45:15,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 06:45:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:15,156 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:45:15,158 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:45:15,333 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:45:15,333 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:45:15,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:45:15,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367064653] [2024-11-09 06:45:15,929 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:45:15,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429914149] [2024-11-09 06:45:15,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429914149] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:45:15,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1303009637] [2024-11-09 06:45:15,934 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 06:45:15,935 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:45:15,935 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:45:15,935 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:45:15,936 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:45:17,062 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-09 06:45:17,079 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:45:17,105 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:45:20,247 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2802#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~y2~0#1| 0) (exists ((|v_ULTIMATE.start_main_~x2~0#1_40| Int) (|v_ULTIMATE.start_main_~y1~0#1_57| Int)) (and (<= |v_ULTIMATE.start_main_~y1~0#1_57| 2147483647) (<= |v_ULTIMATE.start_main_~x2~0#1_40| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_57|) (<= 2147483648 (* |v_ULTIMATE.start_main_~x2~0#1_40| |v_ULTIMATE.start_main_~y1~0#1_57|)))) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:45:20,248 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:45:20,248 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:45:20,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-09 06:45:20,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726824740] [2024-11-09 06:45:20,249 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:45:20,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:45:20,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:45:20,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:45:20,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2024-11-09 06:45:20,251 INFO L87 Difference]: Start difference. First operand 104 states and 122 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 06:45:20,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:45:20,451 INFO L93 Difference]: Finished difference Result 154 states and 181 transitions. [2024-11-09 06:45:20,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:45:20,452 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2024-11-09 06:45:20,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:45:20,453 INFO L225 Difference]: With dead ends: 154 [2024-11-09 06:45:20,453 INFO L226 Difference]: Without dead ends: 151 [2024-11-09 06:45:20,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2024-11-09 06:45:20,455 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 80 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:45:20,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 81 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:45:20,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-09 06:45:20,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 140. [2024-11-09 06:45:20,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 114 states have (on average 1.3859649122807018) internal successors, (158), 128 states have internal predecessors, (158), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:45:20,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 174 transitions. [2024-11-09 06:45:20,473 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 174 transitions. Word has length 29 [2024-11-09 06:45:20,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:45:20,473 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 174 transitions. [2024-11-09 06:45:20,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 06:45:20,474 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 174 transitions. [2024-11-09 06:45:20,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 06:45:20,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:45:20,475 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:45:20,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 06:45:20,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:20,680 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:45:20,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:20,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1023093162, now seen corresponding path program 1 times [2024-11-09 06:45:20,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:45:20,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131475698] [2024-11-09 06:45:20,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:20,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:20,836 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:45:20,836 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:45:20,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131475698] [2024-11-09 06:45:20,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131475698] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:45:20,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063733317] [2024-11-09 06:45:20,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:20,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:20,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:45:20,839 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:45:20,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 06:45:20,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:20,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:45:20,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:45:21,033 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:45:21,033 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:45:21,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063733317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:45:21,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:45:21,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-09 06:45:21,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624349903] [2024-11-09 06:45:21,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:45:21,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:45:21,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:45:21,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:45:21,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:45:21,036 INFO L87 Difference]: Start difference. First operand 140 states and 174 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 06:45:21,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:45:21,274 INFO L93 Difference]: Finished difference Result 140 states and 174 transitions. [2024-11-09 06:45:21,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:45:21,275 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2024-11-09 06:45:21,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:45:21,276 INFO L225 Difference]: With dead ends: 140 [2024-11-09 06:45:21,277 INFO L226 Difference]: Without dead ends: 138 [2024-11-09 06:45:21,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:45:21,278 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 28 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:45:21,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 46 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:45:21,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-09 06:45:21,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 135. [2024-11-09 06:45:21,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 111 states have (on average 1.3783783783783783) internal successors, (153), 123 states have internal predecessors, (153), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:45:21,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 169 transitions. [2024-11-09 06:45:21,295 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 169 transitions. Word has length 30 [2024-11-09 06:45:21,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:45:21,296 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 169 transitions. [2024-11-09 06:45:21,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 06:45:21,296 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 169 transitions. [2024-11-09 06:45:21,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 06:45:21,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:45:21,298 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:45:21,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 06:45:21,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:21,498 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:45:21,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:21,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1651116899, now seen corresponding path program 1 times [2024-11-09 06:45:21,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:45:21,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746426617] [2024-11-09 06:45:21,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:21,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:21,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:21,750 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:45:21,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:45:21,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746426617] [2024-11-09 06:45:21,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746426617] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:45:21,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017899205] [2024-11-09 06:45:21,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:21,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:21,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:45:21,753 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:45:21,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 06:45:21,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:21,814 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:45:21,815 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:45:21,938 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:45:21,938 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:45:22,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017899205] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:45:22,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1629908486] [2024-11-09 06:45:22,172 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 06:45:22,173 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:45:22,173 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:45:22,173 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:45:22,173 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:45:23,347 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 31 for LOIs [2024-11-09 06:45:23,354 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:45:23,383 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:45:24,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1629908486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:45:24,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:45:24,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [8, 3] total 26 [2024-11-09 06:45:24,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497877323] [2024-11-09 06:45:24,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:45:24,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 06:45:24,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:45:24,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 06:45:24,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=690, Unknown=0, NotChecked=0, Total=812 [2024-11-09 06:45:24,673 INFO L87 Difference]: Start difference. First operand 135 states and 169 transitions. Second operand has 18 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 06:45:26,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:45:26,451 INFO L93 Difference]: Finished difference Result 140 states and 169 transitions. [2024-11-09 06:45:26,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 06:45:26,452 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 31 [2024-11-09 06:45:26,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:45:26,454 INFO L225 Difference]: With dead ends: 140 [2024-11-09 06:45:26,454 INFO L226 Difference]: Without dead ends: 135 [2024-11-09 06:45:26,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 54 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=275, Invalid=1131, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 06:45:26,456 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 177 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:45:26,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 49 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 06:45:26,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-09 06:45:26,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 131. [2024-11-09 06:45:26,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 107 states have (on average 1.3457943925233644) internal successors, (144), 119 states have internal predecessors, (144), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:45:26,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 160 transitions. [2024-11-09 06:45:26,475 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 160 transitions. Word has length 31 [2024-11-09 06:45:26,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:45:26,476 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 160 transitions. [2024-11-09 06:45:26,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 06:45:26,476 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 160 transitions. [2024-11-09 06:45:26,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-09 06:45:26,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:45:26,477 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:45:26,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 06:45:26,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:26,682 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:45:26,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:26,682 INFO L85 PathProgramCache]: Analyzing trace with hash -823865042, now seen corresponding path program 1 times [2024-11-09 06:45:26,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:45:26,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979398001] [2024-11-09 06:45:26,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:26,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:26,962 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:45:26,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:45:26,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979398001] [2024-11-09 06:45:26,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979398001] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:45:26,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945390489] [2024-11-09 06:45:26,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:26,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:26,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:45:26,965 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:45:26,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 06:45:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:27,027 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:45:27,029 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:45:27,179 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:45:27,180 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:45:27,509 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:45:27,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945390489] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:45:27,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [738091947] [2024-11-09 06:45:27,513 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 06:45:27,513 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:45:27,514 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:45:27,514 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:45:27,514 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:45:28,617 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-09 06:45:28,631 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:45:28,652 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:45:30,931 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4256#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~y1~0#1_65| Int) (|v_ULTIMATE.start_main_~x2~0#1_42| Int)) (and (<= 0 |v_ULTIMATE.start_main_~y1~0#1_65|) (<= 0 (+ (* |v_ULTIMATE.start_main_~x2~0#1_42| |v_ULTIMATE.start_main_~y1~0#1_65|) 2147483648)) (<= |v_ULTIMATE.start_main_~y1~0#1_65| 2147483647) (<= (+ (* |v_ULTIMATE.start_main_~x2~0#1_42| |v_ULTIMATE.start_main_~y1~0#1_65|) 1) 0))) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:45:30,931 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:45:30,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:45:30,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2024-11-09 06:45:30,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450302500] [2024-11-09 06:45:30,932 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:45:30,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 06:45:30,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:45:30,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 06:45:30,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=955, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 06:45:30,935 INFO L87 Difference]: Start difference. First operand 131 states and 160 transitions. Second operand has 15 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 14 states have internal predecessors, (44), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 06:45:31,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:45:31,587 INFO L93 Difference]: Finished difference Result 134 states and 162 transitions. [2024-11-09 06:45:31,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 06:45:31,587 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 14 states have internal predecessors, (44), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 32 [2024-11-09 06:45:31,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:45:31,589 INFO L225 Difference]: With dead ends: 134 [2024-11-09 06:45:31,589 INFO L226 Difference]: Without dead ends: 131 [2024-11-09 06:45:31,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 65 SyntacticMatches, 5 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 611 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=269, Invalid=1537, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 06:45:31,591 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 131 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:45:31,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 62 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:45:31,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-09 06:45:31,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2024-11-09 06:45:31,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 107 states have (on average 1.2710280373831775) internal successors, (136), 116 states have internal predecessors, (136), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:45:31,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 152 transitions. [2024-11-09 06:45:31,608 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 152 transitions. Word has length 32 [2024-11-09 06:45:31,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:45:31,609 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 152 transitions. [2024-11-09 06:45:31,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 14 states have internal predecessors, (44), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 06:45:31,609 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 152 transitions. [2024-11-09 06:45:31,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 06:45:31,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:45:31,611 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:45:31,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-09 06:45:31,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-09 06:45:31,815 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:45:31,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:31,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1880406017, now seen corresponding path program 1 times [2024-11-09 06:45:31,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:45:31,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281591880] [2024-11-09 06:45:31,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:31,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:31,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:31,895 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:45:31,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:45:31,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281591880] [2024-11-09 06:45:31,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281591880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:45:31,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:45:31,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:45:31,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116972415] [2024-11-09 06:45:31,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:45:31,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:45:31,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:45:31,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:45:31,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:45:31,899 INFO L87 Difference]: Start difference. First operand 128 states and 152 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 06:45:32,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:45:32,114 INFO L93 Difference]: Finished difference Result 129 states and 152 transitions. [2024-11-09 06:45:32,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:45:32,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2024-11-09 06:45:32,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:45:32,116 INFO L225 Difference]: With dead ends: 129 [2024-11-09 06:45:32,116 INFO L226 Difference]: Without dead ends: 128 [2024-11-09 06:45:32,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:45:32,117 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:45:32,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:45:32,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-09 06:45:32,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2024-11-09 06:45:32,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 107 states have (on average 1.2429906542056075) internal successors, (133), 116 states have internal predecessors, (133), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:45:32,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 149 transitions. [2024-11-09 06:45:32,134 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 149 transitions. Word has length 33 [2024-11-09 06:45:32,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:45:32,134 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 149 transitions. [2024-11-09 06:45:32,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 06:45:32,135 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 149 transitions. [2024-11-09 06:45:32,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 06:45:32,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:45:32,136 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:45:32,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 06:45:32,136 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:45:32,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:32,137 INFO L85 PathProgramCache]: Analyzing trace with hash 229987529, now seen corresponding path program 1 times [2024-11-09 06:45:32,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:45:32,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946104420] [2024-11-09 06:45:32,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:32,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:45:32,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [692916576] [2024-11-09 06:45:32,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:32,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:32,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:45:32,152 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:45:32,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 06:45:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:32,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 06:45:32,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:45:32,478 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:45:32,479 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:45:32,609 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:45:32,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:45:32,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946104420] [2024-11-09 06:45:32,610 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:45:32,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692916576] [2024-11-09 06:45:32,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692916576] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:45:32,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2023830981] [2024-11-09 06:45:32,612 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 06:45:32,612 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:45:32,612 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:45:32,612 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:45:32,612 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:45:33,547 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-09 06:45:33,557 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:45:33,573 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:45:35,699 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5099#(exists ((|v_ULTIMATE.start_main_~y3~0#1_63| Int) (|v_ULTIMATE.start_main_~y2~0#1_79| Int) (|v_ULTIMATE.start_main_~y1~0#1_73| Int) (|v_ULTIMATE.start_main_~x2~0#1_43| Int)) (and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= (* |v_ULTIMATE.start_main_~x2~0#1_43| |v_ULTIMATE.start_main_~y1~0#1_73|) 2147483647) (<= 1 |#StackHeapBarrier|) (= |v_ULTIMATE.start_main_~y2~0#1_79| 0) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_73|) (<= 2147483648 (+ (* |v_ULTIMATE.start_main_~x2~0#1_43| |v_ULTIMATE.start_main_~y1~0#1_73|) |v_ULTIMATE.start_main_~y3~0#1_63|)) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647) (<= |v_ULTIMATE.start_main_~y3~0#1_63| 2147483647)))' at error location [2024-11-09 06:45:35,699 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:45:35,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:45:35,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-09 06:45:35,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102243202] [2024-11-09 06:45:35,700 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 06:45:35,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:45:35,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:45:35,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:45:35,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=730, Unknown=0, NotChecked=0, Total=870 [2024-11-09 06:45:35,701 INFO L87 Difference]: Start difference. First operand 128 states and 149 transitions. Second operand has 11 states, 10 states have (on average 4.9) internal successors, (49), 11 states have internal predecessors, (49), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 06:45:36,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:45:36,417 INFO L93 Difference]: Finished difference Result 213 states and 249 transitions. [2024-11-09 06:45:36,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 06:45:36,417 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.9) internal successors, (49), 11 states have internal predecessors, (49), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 33 [2024-11-09 06:45:36,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:45:36,419 INFO L225 Difference]: With dead ends: 213 [2024-11-09 06:45:36,419 INFO L226 Difference]: Without dead ends: 141 [2024-11-09 06:45:36,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=192, Invalid=1140, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 06:45:36,420 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 85 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:45:36,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 44 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 06:45:36,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-09 06:45:36,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 139. [2024-11-09 06:45:36,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 118 states have (on average 1.2033898305084745) internal successors, (142), 126 states have internal predecessors, (142), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 06:45:36,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 160 transitions. [2024-11-09 06:45:36,440 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 160 transitions. Word has length 33 [2024-11-09 06:45:36,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:45:36,440 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 160 transitions. [2024-11-09 06:45:36,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.9) internal successors, (49), 11 states have internal predecessors, (49), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 06:45:36,441 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 160 transitions. [2024-11-09 06:45:36,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 06:45:36,441 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:45:36,442 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:45:36,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-09 06:45:36,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-09 06:45:36,642 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:45:36,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:36,643 INFO L85 PathProgramCache]: Analyzing trace with hash 566079496, now seen corresponding path program 1 times [2024-11-09 06:45:36,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:45:36,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794031976] [2024-11-09 06:45:36,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:36,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:36,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:36,694 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:45:36,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:45:36,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794031976] [2024-11-09 06:45:36,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794031976] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:45:36,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931894052] [2024-11-09 06:45:36,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:36,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:36,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:45:36,697 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:45:36,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 06:45:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:36,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:45:36,756 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:45:36,807 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:45:36,807 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:45:36,878 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:45:36,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931894052] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:45:36,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [897796728] [2024-11-09 06:45:36,881 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 06:45:36,881 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:45:36,881 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:45:36,883 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:45:36,883 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:45:37,552 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 31 for LOIs [2024-11-09 06:45:37,558 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:45:37,585 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:45:38,790 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5771#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x2~0#1| 2147483647) (= |ULTIMATE.start_main_~y1~0#1| 0) (<= 0 (+ |ULTIMATE.start_main_~x2~0#1| 2147483648)) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:45:38,790 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:45:38,790 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:45:38,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-09 06:45:38,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985646177] [2024-11-09 06:45:38,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:45:38,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:45:38,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:45:38,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:45:38,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=466, Unknown=0, NotChecked=0, Total=552 [2024-11-09 06:45:38,792 INFO L87 Difference]: Start difference. First operand 139 states and 160 transitions. Second operand has 7 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-09 06:45:38,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:45:38,927 INFO L93 Difference]: Finished difference Result 305 states and 370 transitions. [2024-11-09 06:45:38,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:45:38,928 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 39 [2024-11-09 06:45:38,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:45:38,930 INFO L225 Difference]: With dead ends: 305 [2024-11-09 06:45:38,930 INFO L226 Difference]: Without dead ends: 303 [2024-11-09 06:45:38,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 94 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=86, Invalid=466, Unknown=0, NotChecked=0, Total=552 [2024-11-09 06:45:38,932 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 51 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:45:38,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 94 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:45:38,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-09 06:45:38,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 275. [2024-11-09 06:45:38,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 246 states have (on average 1.2113821138211383) internal successors, (298), 253 states have internal predecessors, (298), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 06:45:38,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 334 transitions. [2024-11-09 06:45:38,973 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 334 transitions. Word has length 39 [2024-11-09 06:45:38,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:45:38,974 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 334 transitions. [2024-11-09 06:45:38,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-09 06:45:38,974 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 334 transitions. [2024-11-09 06:45:38,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 06:45:38,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:45:38,975 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:45:38,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-09 06:45:39,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 06:45:39,176 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:45:39,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:39,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1459403096, now seen corresponding path program 1 times [2024-11-09 06:45:39,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:45:39,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282984251] [2024-11-09 06:45:39,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:39,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:39,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:39,214 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 06:45:39,215 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:45:39,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282984251] [2024-11-09 06:45:39,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282984251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:45:39,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:45:39,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:45:39,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052691299] [2024-11-09 06:45:39,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:45:39,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:45:39,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:45:39,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:45:39,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:45:39,217 INFO L87 Difference]: Start difference. First operand 275 states and 334 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 06:45:39,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:45:39,467 INFO L93 Difference]: Finished difference Result 275 states and 334 transitions. [2024-11-09 06:45:39,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:45:39,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2024-11-09 06:45:39,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:45:39,470 INFO L225 Difference]: With dead ends: 275 [2024-11-09 06:45:39,470 INFO L226 Difference]: Without dead ends: 270 [2024-11-09 06:45:39,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:45:39,471 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 9 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:45:39,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 33 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:45:39,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-09 06:45:39,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2024-11-09 06:45:39,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 242 states have (on average 1.177685950413223) internal successors, (285), 248 states have internal predecessors, (285), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 06:45:39,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 321 transitions. [2024-11-09 06:45:39,510 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 321 transitions. Word has length 41 [2024-11-09 06:45:39,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:45:39,511 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 321 transitions. [2024-11-09 06:45:39,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 06:45:39,511 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 321 transitions. [2024-11-09 06:45:39,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 06:45:39,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:45:39,512 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:45:39,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 06:45:39,513 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:45:39,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:39,513 INFO L85 PathProgramCache]: Analyzing trace with hash -757711680, now seen corresponding path program 1 times [2024-11-09 06:45:39,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:45:39,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055226370] [2024-11-09 06:45:39,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:39,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:39,562 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:45:39,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:45:39,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055226370] [2024-11-09 06:45:39,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055226370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:45:39,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:45:39,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:45:39,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373220388] [2024-11-09 06:45:39,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:45:39,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:45:39,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:45:39,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:45:39,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:45:39,565 INFO L87 Difference]: Start difference. First operand 270 states and 321 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 06:45:39,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:45:39,630 INFO L93 Difference]: Finished difference Result 270 states and 321 transitions. [2024-11-09 06:45:39,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:45:39,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 44 [2024-11-09 06:45:39,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:45:39,633 INFO L225 Difference]: With dead ends: 270 [2024-11-09 06:45:39,634 INFO L226 Difference]: Without dead ends: 268 [2024-11-09 06:45:39,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:45:39,635 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 8 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:45:39,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 70 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:45:39,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-09 06:45:39,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2024-11-09 06:45:39,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 242 states have (on average 1.1363636363636365) internal successors, (275), 246 states have internal predecessors, (275), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 06:45:39,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 311 transitions. [2024-11-09 06:45:39,670 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 311 transitions. Word has length 44 [2024-11-09 06:45:39,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:45:39,671 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 311 transitions. [2024-11-09 06:45:39,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 06:45:39,671 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 311 transitions. [2024-11-09 06:45:39,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 06:45:39,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:45:39,672 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:45:39,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 06:45:39,673 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:45:39,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:39,673 INFO L85 PathProgramCache]: Analyzing trace with hash 359601559, now seen corresponding path program 2 times [2024-11-09 06:45:39,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:45:39,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932108677] [2024-11-09 06:45:39,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:39,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:45:39,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [736386476] [2024-11-09 06:45:39,696 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:45:39,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:39,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:45:39,699 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:45:39,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 06:45:39,770 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-09 06:45:39,770 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:45:39,772 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 06:45:39,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:45:40,121 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:45:40,121 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:45:40,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:45:40,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932108677] [2024-11-09 06:45:40,430 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:45:40,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736386476] [2024-11-09 06:45:40,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736386476] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:45:40,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [413946253] [2024-11-09 06:45:40,435 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 06:45:40,436 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:45:40,439 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:45:40,439 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:45:40,440 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:45:41,288 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-09 06:45:41,297 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:45:41,310 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:45:44,481 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7889#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~y2~0#1| 0) (exists ((|v_ULTIMATE.start_main_~y1~0#1_81| Int) (|v_ULTIMATE.start_main_~x2~0#1_44| Int)) (and (<= 0 |v_ULTIMATE.start_main_~y1~0#1_81|) (<= 2147483648 (* |v_ULTIMATE.start_main_~x2~0#1_44| |v_ULTIMATE.start_main_~y1~0#1_81|)) (<= |v_ULTIMATE.start_main_~y1~0#1_81| 2147483647) (<= |v_ULTIMATE.start_main_~x2~0#1_44| 2147483647))) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:45:44,481 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:45:44,481 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:45:44,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-09 06:45:44,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552694357] [2024-11-09 06:45:44,481 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:45:44,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 06:45:44,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:45:44,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 06:45:44,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1156, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 06:45:44,483 INFO L87 Difference]: Start difference. First operand 268 states and 311 transitions. Second operand has 14 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:45:45,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:45:45,258 INFO L93 Difference]: Finished difference Result 374 states and 439 transitions. [2024-11-09 06:45:45,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 06:45:45,259 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 47 [2024-11-09 06:45:45,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:45:45,261 INFO L225 Difference]: With dead ends: 374 [2024-11-09 06:45:45,261 INFO L226 Difference]: Without dead ends: 252 [2024-11-09 06:45:45,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=371, Invalid=2179, Unknown=0, NotChecked=0, Total=2550 [2024-11-09 06:45:45,263 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 93 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:45:45,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 64 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:45:45,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2024-11-09 06:45:45,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2024-11-09 06:45:45,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 227 states have (on average 1.13215859030837) internal successors, (257), 231 states have internal predecessors, (257), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 06:45:45,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 291 transitions. [2024-11-09 06:45:45,301 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 291 transitions. Word has length 47 [2024-11-09 06:45:45,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:45:45,302 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 291 transitions. [2024-11-09 06:45:45,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:45:45,302 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 291 transitions. [2024-11-09 06:45:45,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 06:45:45,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:45:45,304 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:45:45,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-09 06:45:45,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:45,504 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:45:45,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:45,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1662240247, now seen corresponding path program 1 times [2024-11-09 06:45:45,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:45:45,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658773482] [2024-11-09 06:45:45,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:45,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:45,741 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 06:45:45,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:45:45,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658773482] [2024-11-09 06:45:45,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658773482] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:45:45,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523503604] [2024-11-09 06:45:45,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:45,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:45,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:45:45,745 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:45:45,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 06:45:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:45,811 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:45:45,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:45:45,929 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 06:45:45,930 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:45:46,178 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 06:45:46,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523503604] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:45:46,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1260428040] [2024-11-09 06:45:46,180 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 06:45:46,181 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:45:46,181 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:45:46,181 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:45:46,182 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:45:47,189 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 06:45:47,204 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:45:47,218 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:45:50,589 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9063#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~y1~0#1_90| Int) (|v_ULTIMATE.start_main_~x2~0#1_47| Int)) (and (<= 0 |v_ULTIMATE.start_main_~y1~0#1_90|) (<= (* |v_ULTIMATE.start_main_~x2~0#1_47| |v_ULTIMATE.start_main_~y1~0#1_90|) 2147483647) (<= 1 (* |v_ULTIMATE.start_main_~x2~0#1_47| |v_ULTIMATE.start_main_~y1~0#1_90|)))) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:45:50,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:45:50,589 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:45:50,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-09 06:45:50,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845832345] [2024-11-09 06:45:50,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:45:50,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:45:50,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:45:50,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:45:50,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=1107, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 06:45:50,592 INFO L87 Difference]: Start difference. First operand 252 states and 291 transitions. Second operand has 13 states, 11 states have (on average 9.636363636363637) internal successors, (106), 13 states have internal predecessors, (106), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-09 06:45:51,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:45:51,439 INFO L93 Difference]: Finished difference Result 574 states and 654 transitions. [2024-11-09 06:45:51,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-09 06:45:51,439 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 9.636363636363637) internal successors, (106), 13 states have internal predecessors, (106), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 67 [2024-11-09 06:45:51,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:45:51,442 INFO L225 Difference]: With dead ends: 574 [2024-11-09 06:45:51,443 INFO L226 Difference]: Without dead ends: 573 [2024-11-09 06:45:51,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 164 SyntacticMatches, 8 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 977 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=345, Invalid=2105, Unknown=0, NotChecked=0, Total=2450 [2024-11-09 06:45:51,445 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 94 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:45:51,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 95 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:45:51,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2024-11-09 06:45:51,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 531. [2024-11-09 06:45:51,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 492 states have (on average 1.0934959349593496) internal successors, (538), 496 states have internal predecessors, (538), 31 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-09 06:45:51,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 600 transitions. [2024-11-09 06:45:51,516 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 600 transitions. Word has length 67 [2024-11-09 06:45:51,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:45:51,517 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 600 transitions. [2024-11-09 06:45:51,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 9.636363636363637) internal successors, (106), 13 states have internal predecessors, (106), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-09 06:45:51,517 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 600 transitions. [2024-11-09 06:45:51,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-09 06:45:51,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:45:51,519 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:45:51,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-09 06:45:51,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:51,723 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:45:51,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:51,723 INFO L85 PathProgramCache]: Analyzing trace with hash -2038689881, now seen corresponding path program 1 times [2024-11-09 06:45:51,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:45:51,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179661914] [2024-11-09 06:45:51,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:51,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:51,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:45:51,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [349530214] [2024-11-09 06:45:51,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:51,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:51,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:45:51,750 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:45:51,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 06:45:51,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:51,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 06:45:51,832 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:45:52,355 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 2 proven. 94 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 06:45:52,355 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:45:52,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:45:52,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179661914] [2024-11-09 06:45:52,962 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:45:52,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349530214] [2024-11-09 06:45:52,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349530214] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:45:52,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [950209150] [2024-11-09 06:45:52,965 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 06:45:52,965 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:45:52,966 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:45:52,966 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:45:52,966 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:45:54,293 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 06:45:54,305 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:45:54,318 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:45:58,614 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10665#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_99| Int) (|v_ULTIMATE.start_main_~x2~0#1_50| Int)) (and (<= |v_ULTIMATE.start_main_~x2~0#1_50| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_99|) (<= 2147483648 (* |v_ULTIMATE.start_main_~x2~0#1_50| |v_ULTIMATE.start_main_~y1~0#1_99|)))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:45:58,614 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:45:58,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:45:58,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-09 06:45:58,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936574626] [2024-11-09 06:45:58,614 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:45:58,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 06:45:58,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:45:58,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 06:45:58,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1402, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 06:45:58,617 INFO L87 Difference]: Start difference. First operand 531 states and 600 transitions. Second operand has 14 states, 12 states have (on average 5.666666666666667) internal successors, (68), 14 states have internal predecessors, (68), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-09 06:45:59,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:45:59,239 INFO L93 Difference]: Finished difference Result 660 states and 754 transitions. [2024-11-09 06:45:59,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:45:59,239 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.666666666666667) internal successors, (68), 14 states have internal predecessors, (68), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 83 [2024-11-09 06:45:59,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:45:59,242 INFO L225 Difference]: With dead ends: 660 [2024-11-09 06:45:59,243 INFO L226 Difference]: Without dead ends: 655 [2024-11-09 06:45:59,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 129 SyntacticMatches, 10 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 769 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=186, Invalid=1620, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 06:45:59,245 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 61 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:45:59,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 164 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:45:59,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-11-09 06:45:59,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 506. [2024-11-09 06:45:59,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 468 states have (on average 1.0940170940170941) internal successors, (512), 472 states have internal predecessors, (512), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-09 06:45:59,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 572 transitions. [2024-11-09 06:45:59,311 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 572 transitions. Word has length 83 [2024-11-09 06:45:59,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:45:59,312 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 572 transitions. [2024-11-09 06:45:59,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.666666666666667) internal successors, (68), 14 states have internal predecessors, (68), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-09 06:45:59,312 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 572 transitions. [2024-11-09 06:45:59,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-09 06:45:59,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:45:59,314 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:45:59,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-09 06:45:59,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-09 06:45:59,519 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:45:59,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:59,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1855841824, now seen corresponding path program 2 times [2024-11-09 06:45:59,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:45:59,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356107387] [2024-11-09 06:45:59,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:59,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:59,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:59,691 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 06:45:59,692 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:45:59,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356107387] [2024-11-09 06:45:59,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356107387] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:45:59,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919417764] [2024-11-09 06:45:59,692 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:45:59,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:59,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:45:59,695 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:45:59,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 06:45:59,775 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 06:45:59,775 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:45:59,778 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:45:59,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:45:59,922 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 06:45:59,923 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:46:00,144 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 06:46:00,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919417764] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:46:00,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [980935392] [2024-11-09 06:46:00,146 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 06:46:00,147 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:46:00,147 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:46:00,147 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:46:00,147 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:46:01,210 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 31 for LOIs [2024-11-09 06:46:01,215 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:46:01,237 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:46:02,771 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12581#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x2~0#1| 2147483647) (= |ULTIMATE.start_main_~y1~0#1| 0) (<= 0 (+ |ULTIMATE.start_main_~x2~0#1| 2147483648)) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:46:02,772 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:46:02,772 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:46:02,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-11-09 06:46:02,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788086339] [2024-11-09 06:46:02,772 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:46:02,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:46:02,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:46:02,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:46:02,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=727, Unknown=0, NotChecked=0, Total=870 [2024-11-09 06:46:02,775 INFO L87 Difference]: Start difference. First operand 506 states and 572 transitions. Second operand has 13 states, 12 states have (on average 13.25) internal successors, (159), 13 states have internal predecessors, (159), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-09 06:46:03,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:46:03,154 INFO L93 Difference]: Finished difference Result 901 states and 1043 transitions. [2024-11-09 06:46:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:46:03,158 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 13.25) internal successors, (159), 13 states have internal predecessors, (159), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 93 [2024-11-09 06:46:03,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:46:03,163 INFO L225 Difference]: With dead ends: 901 [2024-11-09 06:46:03,163 INFO L226 Difference]: Without dead ends: 900 [2024-11-09 06:46:03,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 250 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=143, Invalid=727, Unknown=0, NotChecked=0, Total=870 [2024-11-09 06:46:03,165 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 110 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:46:03,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 138 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:46:03,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2024-11-09 06:46:03,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 863. [2024-11-09 06:46:03,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 802 states have (on average 1.1159600997506234) internal successors, (895), 806 states have internal predecessors, (895), 53 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-09 06:46:03,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1001 transitions. [2024-11-09 06:46:03,295 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1001 transitions. Word has length 93 [2024-11-09 06:46:03,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:46:03,299 INFO L471 AbstractCegarLoop]: Abstraction has 863 states and 1001 transitions. [2024-11-09 06:46:03,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 13.25) internal successors, (159), 13 states have internal predecessors, (159), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-09 06:46:03,300 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1001 transitions. [2024-11-09 06:46:03,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-09 06:46:03,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:46:03,302 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:46:03,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-09 06:46:03,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:46:03,503 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:46:03,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:46:03,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1187358959, now seen corresponding path program 2 times [2024-11-09 06:46:03,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:46:03,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456303869] [2024-11-09 06:46:03,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:03,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:46:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:46:03,770 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 47 proven. 104 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 06:46:03,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:46:03,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456303869] [2024-11-09 06:46:03,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456303869] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:46:03,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931317172] [2024-11-09 06:46:03,771 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:46:03,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:46:03,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:46:03,774 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:46:03,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 06:46:03,925 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-09 06:46:03,925 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:46:03,927 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 06:46:03,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:46:04,246 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-09 06:46:04,246 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:46:05,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931317172] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:46:05,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1651263927] [2024-11-09 06:46:05,027 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 06:46:05,030 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:46:05,030 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:46:05,031 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:46:05,031 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:46:06,158 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 06:46:06,170 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:46:06,189 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:46:09,433 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14942#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_108| Int) (|v_ULTIMATE.start_main_~x2~0#1_51| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_108| |v_ULTIMATE.start_main_~x2~0#1_51|)) (<= |v_ULTIMATE.start_main_~x2~0#1_51| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_108|))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:46:09,433 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:46:09,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:46:09,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 13 [2024-11-09 06:46:09,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106972740] [2024-11-09 06:46:09,434 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 06:46:09,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:46:09,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:46:09,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:46:09,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1326, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 06:46:09,437 INFO L87 Difference]: Start difference. First operand 863 states and 1001 transitions. Second operand has 13 states, 13 states have (on average 10.461538461538462) internal successors, (136), 13 states have internal predecessors, (136), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-09 06:46:10,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:46:10,691 INFO L93 Difference]: Finished difference Result 1630 states and 1924 transitions. [2024-11-09 06:46:10,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-09 06:46:10,691 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.461538461538462) internal successors, (136), 13 states have internal predecessors, (136), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 101 [2024-11-09 06:46:10,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:46:10,697 INFO L225 Difference]: With dead ends: 1630 [2024-11-09 06:46:10,697 INFO L226 Difference]: Without dead ends: 1076 [2024-11-09 06:46:10,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 179 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 914 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=262, Invalid=2600, Unknown=0, NotChecked=0, Total=2862 [2024-11-09 06:46:10,701 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 161 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:46:10,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 434 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 06:46:10,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2024-11-09 06:46:10,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 904. [2024-11-09 06:46:10,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 840 states have (on average 1.1035714285714286) internal successors, (927), 844 states have internal predecessors, (927), 56 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-09 06:46:10,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1039 transitions. [2024-11-09 06:46:10,849 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1039 transitions. Word has length 101 [2024-11-09 06:46:10,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:46:10,849 INFO L471 AbstractCegarLoop]: Abstraction has 904 states and 1039 transitions. [2024-11-09 06:46:10,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.461538461538462) internal successors, (136), 13 states have internal predecessors, (136), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-09 06:46:10,850 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1039 transitions. [2024-11-09 06:46:10,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-09 06:46:10,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:46:10,852 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:46:10,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-09 06:46:11,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-09 06:46:11,053 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:46:11,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:46:11,054 INFO L85 PathProgramCache]: Analyzing trace with hash -590962249, now seen corresponding path program 3 times [2024-11-09 06:46:11,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:46:11,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382677998] [2024-11-09 06:46:11,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:11,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:46:11,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:46:11,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1250144965] [2024-11-09 06:46:11,093 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 06:46:11,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:46:11,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:46:11,096 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:46:11,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-09 06:46:11,204 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 06:46:11,205 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:46:11,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 06:46:11,214 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:46:12,021 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 3 proven. 228 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 06:46:12,022 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:46:12,534 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:46:12,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382677998] [2024-11-09 06:46:12,535 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:46:12,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250144965] [2024-11-09 06:46:12,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250144965] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:46:12,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1814432904] [2024-11-09 06:46:12,537 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 06:46:12,537 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:46:12,538 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:46:12,538 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:46:12,538 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:46:13,614 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 06:46:13,631 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:46:13,654 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:46:17,794 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '18266#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~x2~0#1_52| Int) (|v_ULTIMATE.start_main_~y1~0#1_115| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_115| |v_ULTIMATE.start_main_~x2~0#1_52|)) (<= |v_ULTIMATE.start_main_~x2~0#1_52| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_115|))) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:46:17,794 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:46:17,794 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:46:17,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-09 06:46:17,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798717500] [2024-11-09 06:46:17,795 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:46:17,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 06:46:17,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:46:17,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 06:46:17,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=1553, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 06:46:17,796 INFO L87 Difference]: Start difference. First operand 904 states and 1039 transitions. Second operand has 16 states, 14 states have (on average 7.0) internal successors, (98), 16 states have internal predecessors, (98), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-09 06:46:19,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:46:19,194 INFO L93 Difference]: Finished difference Result 1087 states and 1270 transitions. [2024-11-09 06:46:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 06:46:19,194 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 7.0) internal successors, (98), 16 states have internal predecessors, (98), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 119 [2024-11-09 06:46:19,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:46:19,200 INFO L225 Difference]: With dead ends: 1087 [2024-11-09 06:46:19,200 INFO L226 Difference]: Without dead ends: 1082 [2024-11-09 06:46:19,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 195 SyntacticMatches, 14 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 851 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=176, Invalid=1630, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 06:46:19,203 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 28 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:46:19,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 375 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 06:46:19,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2024-11-09 06:46:19,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 904. [2024-11-09 06:46:19,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 840 states have (on average 1.1035714285714286) internal successors, (927), 844 states have internal predecessors, (927), 56 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-09 06:46:19,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1039 transitions. [2024-11-09 06:46:19,340 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1039 transitions. Word has length 119 [2024-11-09 06:46:19,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:46:19,340 INFO L471 AbstractCegarLoop]: Abstraction has 904 states and 1039 transitions. [2024-11-09 06:46:19,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 7.0) internal successors, (98), 16 states have internal predecessors, (98), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-09 06:46:19,341 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1039 transitions. [2024-11-09 06:46:19,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-09 06:46:19,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:46:19,346 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:46:19,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-09 06:46:19,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-09 06:46:19,546 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:46:19,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:46:19,547 INFO L85 PathProgramCache]: Analyzing trace with hash 151373825, now seen corresponding path program 4 times [2024-11-09 06:46:19,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:46:19,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582184227] [2024-11-09 06:46:19,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:19,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:46:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:46:19,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1206318018] [2024-11-09 06:46:19,581 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 06:46:19,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:46:19,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:46:19,583 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:46:19,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 06:46:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:46:19,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 06:46:19,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:46:21,279 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 5 proven. 223 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-09 06:46:21,279 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:46:22,354 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:46:22,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582184227] [2024-11-09 06:46:22,355 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:46:22,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206318018] [2024-11-09 06:46:22,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206318018] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:46:22,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1909218165] [2024-11-09 06:46:22,357 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 06:46:22,357 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:46:22,358 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:46:22,358 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:46:22,358 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:46:23,297 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 06:46:23,310 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:46:23,333 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:46:28,441 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '20960#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~x2~0#1_55| Int) (|v_ULTIMATE.start_main_~y1~0#1_124| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_124| |v_ULTIMATE.start_main_~x2~0#1_55|)) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_124|) (<= |v_ULTIMATE.start_main_~x2~0#1_55| 2147483647))) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:46:28,441 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:46:28,441 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:46:28,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2024-11-09 06:46:28,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217833710] [2024-11-09 06:46:28,442 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:46:28,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 06:46:28,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:46:28,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 06:46:28,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=282, Invalid=2268, Unknown=0, NotChecked=0, Total=2550 [2024-11-09 06:46:28,445 INFO L87 Difference]: Start difference. First operand 904 states and 1039 transitions. Second operand has 23 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 21 states have internal predecessors, (99), 8 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:46:30,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:46:30,450 INFO L93 Difference]: Finished difference Result 1087 states and 1272 transitions. [2024-11-09 06:46:30,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-09 06:46:30,451 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 21 states have internal predecessors, (99), 8 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Word has length 119 [2024-11-09 06:46:30,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:46:30,457 INFO L225 Difference]: With dead ends: 1087 [2024-11-09 06:46:30,457 INFO L226 Difference]: Without dead ends: 1082 [2024-11-09 06:46:30,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 185 SyntacticMatches, 15 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2013 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=484, Invalid=3676, Unknown=0, NotChecked=0, Total=4160 [2024-11-09 06:46:30,460 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 115 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:46:30,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 186 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 816 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 06:46:30,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2024-11-09 06:46:30,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 936. [2024-11-09 06:46:30,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 870 states have (on average 1.1022988505747127) internal successors, (959), 874 states have internal predecessors, (959), 58 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-09 06:46:30,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1075 transitions. [2024-11-09 06:46:30,611 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1075 transitions. Word has length 119 [2024-11-09 06:46:30,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:46:30,612 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1075 transitions. [2024-11-09 06:46:30,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 21 states have internal predecessors, (99), 8 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:46:30,612 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1075 transitions. [2024-11-09 06:46:30,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-09 06:46:30,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:46:30,616 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:46:30,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-09 06:46:30,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-09 06:46:30,817 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:46:30,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:46:30,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1054132481, now seen corresponding path program 5 times [2024-11-09 06:46:30,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:46:30,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922878154] [2024-11-09 06:46:30,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:30,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:46:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:46:31,153 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 83 proven. 234 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-09 06:46:31,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:46:31,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922878154] [2024-11-09 06:46:31,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922878154] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:46:31,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211334732] [2024-11-09 06:46:31,154 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:46:31,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:46:31,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:46:31,157 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:46:31,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-09 06:46:31,322 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 06:46:31,322 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:46:31,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 06:46:31,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:46:31,692 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 233 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-09 06:46:31,692 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:46:32,239 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 233 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-09 06:46:32,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211334732] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:46:32,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [329871839] [2024-11-09 06:46:32,241 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 06:46:32,241 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:46:32,241 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:46:32,241 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:46:32,241 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:46:33,342 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 06:46:33,355 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:46:33,378 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:46:37,622 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '24136#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~x2~0#1_56| Int) (|v_ULTIMATE.start_main_~y1~0#1_134| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_134| |v_ULTIMATE.start_main_~x2~0#1_56|)) (<= |v_ULTIMATE.start_main_~x2~0#1_56| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_134|))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:46:37,622 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:46:37,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:46:37,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 22 [2024-11-09 06:46:37,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384545747] [2024-11-09 06:46:37,622 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:46:37,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 06:46:37,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:46:37,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 06:46:37,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1794, Unknown=0, NotChecked=0, Total=1980 [2024-11-09 06:46:37,624 INFO L87 Difference]: Start difference. First operand 936 states and 1075 transitions. Second operand has 22 states, 22 states have (on average 11.363636363636363) internal successors, (250), 22 states have internal predecessors, (250), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-09 06:46:44,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:46:44,093 INFO L93 Difference]: Finished difference Result 2000 states and 2380 transitions. [2024-11-09 06:46:44,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-11-09 06:46:44,094 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.363636363636363) internal successors, (250), 22 states have internal predecessors, (250), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 137 [2024-11-09 06:46:44,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:46:44,102 INFO L225 Difference]: With dead ends: 2000 [2024-11-09 06:46:44,102 INFO L226 Difference]: Without dead ends: 1792 [2024-11-09 06:46:44,106 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 369 SyntacticMatches, 7 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2829 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=860, Invalid=7696, Unknown=0, NotChecked=0, Total=8556 [2024-11-09 06:46:44,107 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 584 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 2487 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 2556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:46:44,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 1033 Invalid, 2556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2487 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-09 06:46:44,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1792 states. [2024-11-09 06:46:44,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1792 to 1228. [2024-11-09 06:46:44,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1228 states, 1146 states have (on average 1.0732984293193717) internal successors, (1230), 1149 states have internal predecessors, (1230), 75 states have call successors, (75), 3 states have call predecessors, (75), 3 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-09 06:46:44,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1380 transitions. [2024-11-09 06:46:44,312 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1380 transitions. Word has length 137 [2024-11-09 06:46:44,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:46:44,312 INFO L471 AbstractCegarLoop]: Abstraction has 1228 states and 1380 transitions. [2024-11-09 06:46:44,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.363636363636363) internal successors, (250), 22 states have internal predecessors, (250), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-09 06:46:44,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1380 transitions. [2024-11-09 06:46:44,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-09 06:46:44,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:46:44,316 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:46:44,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-09 06:46:44,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-09 06:46:44,521 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:46:44,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:46:44,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1301422313, now seen corresponding path program 2 times [2024-11-09 06:46:44,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:46:44,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168840188] [2024-11-09 06:46:44,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:44,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:46:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:46:44,944 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 6 proven. 347 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 06:46:44,944 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:46:44,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168840188] [2024-11-09 06:46:44,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168840188] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:46:44,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322568287] [2024-11-09 06:46:44,945 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:46:44,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:46:44,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:46:44,948 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:46:44,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-09 06:46:45,064 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-09 06:46:45,064 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:46:45,066 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 06:46:45,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:46:45,353 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 6 proven. 347 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 06:46:45,353 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:46:45,878 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 6 proven. 347 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 06:46:45,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322568287] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:46:45,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1792875422] [2024-11-09 06:46:45,879 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 06:46:45,880 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:46:45,880 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:46:45,880 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:46:45,880 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:46:46,722 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 06:46:46,731 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:46:46,744 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:46:50,160 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '28746#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~x2~0#1_59| Int) (|v_ULTIMATE.start_main_~y1~0#1_143| Int)) (and (<= (* |v_ULTIMATE.start_main_~y1~0#1_143| |v_ULTIMATE.start_main_~x2~0#1_59|) 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_143|) (<= 1 (* |v_ULTIMATE.start_main_~y1~0#1_143| |v_ULTIMATE.start_main_~x2~0#1_59|)))) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:46:50,160 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:46:50,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:46:50,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 20 [2024-11-09 06:46:50,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479476870] [2024-11-09 06:46:50,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:46:50,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-09 06:46:50,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:46:50,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-09 06:46:50,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=1647, Unknown=0, NotChecked=0, Total=1892 [2024-11-09 06:46:50,164 INFO L87 Difference]: Start difference. First operand 1228 states and 1380 transitions. Second operand has 21 states, 19 states have (on average 11.894736842105264) internal successors, (226), 21 states have internal predecessors, (226), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-09 06:46:52,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:46:52,380 INFO L93 Difference]: Finished difference Result 3295 states and 3735 transitions. [2024-11-09 06:46:52,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-09 06:46:52,381 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 11.894736842105264) internal successors, (226), 21 states have internal predecessors, (226), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 139 [2024-11-09 06:46:52,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:46:52,389 INFO L225 Difference]: With dead ends: 3295 [2024-11-09 06:46:52,389 INFO L226 Difference]: Without dead ends: 3294 [2024-11-09 06:46:52,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 376 SyntacticMatches, 8 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2309 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=1117, Invalid=4889, Unknown=0, NotChecked=0, Total=6006 [2024-11-09 06:46:52,394 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 208 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:46:52,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 117 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 06:46:52,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3294 states. [2024-11-09 06:46:52,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3294 to 3234. [2024-11-09 06:46:52,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3234 states, 3036 states have (on average 1.0487483530961792) internal successors, (3184), 3039 states have internal predecessors, (3184), 191 states have call successors, (191), 3 states have call predecessors, (191), 3 states have return successors, (191), 191 states have call predecessors, (191), 191 states have call successors, (191) [2024-11-09 06:46:52,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3234 states to 3234 states and 3566 transitions. [2024-11-09 06:46:52,989 INFO L78 Accepts]: Start accepts. Automaton has 3234 states and 3566 transitions. Word has length 139 [2024-11-09 06:46:52,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:46:52,990 INFO L471 AbstractCegarLoop]: Abstraction has 3234 states and 3566 transitions. [2024-11-09 06:46:52,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 11.894736842105264) internal successors, (226), 21 states have internal predecessors, (226), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-09 06:46:52,991 INFO L276 IsEmpty]: Start isEmpty. Operand 3234 states and 3566 transitions. [2024-11-09 06:46:52,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-09 06:46:52,994 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:46:52,994 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:46:53,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-09 06:46:53,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-09 06:46:53,199 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:46:53,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:46:53,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1142152027, now seen corresponding path program 6 times [2024-11-09 06:46:53,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:46:53,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402793802] [2024-11-09 06:46:53,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:53,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:46:53,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:46:53,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [499477102] [2024-11-09 06:46:53,238 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 06:46:53,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:46:53,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:46:53,240 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:46:53,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-09 06:46:53,355 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 06:46:53,355 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:46:53,361 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-09 06:46:53,365 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:46:55,502 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 7 proven. 409 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-09 06:46:55,502 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:46:56,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:46:56,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402793802] [2024-11-09 06:46:56,441 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:46:56,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499477102] [2024-11-09 06:46:56,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499477102] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:46:56,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [436029939] [2024-11-09 06:46:56,443 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 06:46:56,443 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:46:56,443 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:46:56,444 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:46:56,444 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:46:57,490 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 06:46:57,501 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:46:57,514 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:47:03,516 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '36720#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~x2~0#1_62| Int) (|v_ULTIMATE.start_main_~y1~0#1_152| Int)) (and (<= |v_ULTIMATE.start_main_~x2~0#1_62| 2147483647) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_152| |v_ULTIMATE.start_main_~x2~0#1_62|)) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_152|))) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:47:03,516 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:47:03,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:47:03,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2024-11-09 06:47:03,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633955055] [2024-11-09 06:47:03,517 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:47:03,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-09 06:47:03,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:47:03,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-09 06:47:03,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=2775, Unknown=0, NotChecked=0, Total=3080 [2024-11-09 06:47:03,520 INFO L87 Difference]: Start difference. First operand 3234 states and 3566 transitions. Second operand has 28 states, 24 states have (on average 5.375) internal successors, (129), 26 states have internal predecessors, (129), 10 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 06:47:09,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:47:09,179 INFO L93 Difference]: Finished difference Result 3392 states and 3741 transitions. [2024-11-09 06:47:09,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-11-09 06:47:09,180 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 24 states have (on average 5.375) internal successors, (129), 26 states have internal predecessors, (129), 10 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Word has length 155 [2024-11-09 06:47:09,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:47:09,191 INFO L225 Difference]: With dead ends: 3392 [2024-11-09 06:47:09,191 INFO L226 Difference]: Without dead ends: 3390 [2024-11-09 06:47:09,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 247 SyntacticMatches, 20 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5159 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=1450, Invalid=10760, Unknown=0, NotChecked=0, Total=12210 [2024-11-09 06:47:09,194 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 309 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:47:09,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 214 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 06:47:09,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3390 states. [2024-11-09 06:47:09,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3390 to 3234. [2024-11-09 06:47:09,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3234 states, 3036 states have (on average 1.047760210803689) internal successors, (3181), 3039 states have internal predecessors, (3181), 191 states have call successors, (191), 3 states have call predecessors, (191), 3 states have return successors, (191), 191 states have call predecessors, (191), 191 states have call successors, (191) [2024-11-09 06:47:09,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3234 states to 3234 states and 3563 transitions. [2024-11-09 06:47:09,795 INFO L78 Accepts]: Start accepts. Automaton has 3234 states and 3563 transitions. Word has length 155 [2024-11-09 06:47:09,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:47:09,796 INFO L471 AbstractCegarLoop]: Abstraction has 3234 states and 3563 transitions. [2024-11-09 06:47:09,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 24 states have (on average 5.375) internal successors, (129), 26 states have internal predecessors, (129), 10 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 06:47:09,796 INFO L276 IsEmpty]: Start isEmpty. Operand 3234 states and 3563 transitions. [2024-11-09 06:47:09,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-09 06:47:09,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:47:09,802 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:47:09,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-09 06:47:10,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-09 06:47:10,003 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:47:10,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:47:10,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1837994275, now seen corresponding path program 7 times [2024-11-09 06:47:10,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:47:10,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508736807] [2024-11-09 06:47:10,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:47:10,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:47:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:47:10,296 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 135 proven. 304 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-11-09 06:47:10,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:47:10,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508736807] [2024-11-09 06:47:10,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508736807] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:47:10,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125582886] [2024-11-09 06:47:10,297 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 06:47:10,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:47:10,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:47:10,299 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:47:10,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-09 06:47:10,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:47:10,400 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:47:10,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:47:10,751 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 243 proven. 196 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-11-09 06:47:10,751 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:47:11,042 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 79 proven. 360 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-11-09 06:47:11,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125582886] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:47:11,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [942228685] [2024-11-09 06:47:11,044 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 06:47:11,045 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:47:11,045 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:47:11,045 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:47:11,045 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:47:12,013 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 06:47:12,022 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:47:12,051 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:47:16,376 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '45362#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_162| Int) (|v_ULTIMATE.start_main_~x2~0#1_63| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_162| |v_ULTIMATE.start_main_~x2~0#1_63|)) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_162|) (<= |v_ULTIMATE.start_main_~x2~0#1_63| 2147483647))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:47:16,376 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:47:16,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:47:16,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2024-11-09 06:47:16,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676867923] [2024-11-09 06:47:16,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:47:16,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:47:16,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:47:16,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:47:16,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=1103, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 06:47:16,379 INFO L87 Difference]: Start difference. First operand 3234 states and 3563 transitions. Second operand has 13 states, 13 states have (on average 13.461538461538462) internal successors, (175), 13 states have internal predecessors, (175), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-09 06:47:16,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:47:16,986 INFO L93 Difference]: Finished difference Result 3993 states and 4414 transitions. [2024-11-09 06:47:16,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:47:16,987 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 13.461538461538462) internal successors, (175), 13 states have internal predecessors, (175), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 173 [2024-11-09 06:47:16,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:47:16,995 INFO L225 Difference]: With dead ends: 3993 [2024-11-09 06:47:16,995 INFO L226 Difference]: Without dead ends: 3365 [2024-11-09 06:47:16,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 464 SyntacticMatches, 27 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1097 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=175, Invalid=1231, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 06:47:16,998 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 11 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:47:16,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 160 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:47:17,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3365 states. [2024-11-09 06:47:17,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3365 to 3220. [2024-11-09 06:47:17,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3220 states, 3024 states have (on average 1.0456349206349207) internal successors, (3162), 3027 states have internal predecessors, (3162), 189 states have call successors, (189), 3 states have call predecessors, (189), 3 states have return successors, (189), 189 states have call predecessors, (189), 189 states have call successors, (189) [2024-11-09 06:47:17,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3220 states to 3220 states and 3540 transitions. [2024-11-09 06:47:17,587 INFO L78 Accepts]: Start accepts. Automaton has 3220 states and 3540 transitions. Word has length 173 [2024-11-09 06:47:17,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:47:17,588 INFO L471 AbstractCegarLoop]: Abstraction has 3220 states and 3540 transitions. [2024-11-09 06:47:17,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 13.461538461538462) internal successors, (175), 13 states have internal predecessors, (175), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-09 06:47:17,589 INFO L276 IsEmpty]: Start isEmpty. Operand 3220 states and 3540 transitions. [2024-11-09 06:47:17,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-09 06:47:17,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:47:17,596 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:47:17,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-09 06:47:17,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-09 06:47:17,797 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:47:17,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:47:17,797 INFO L85 PathProgramCache]: Analyzing trace with hash -433639209, now seen corresponding path program 8 times [2024-11-09 06:47:17,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:47:17,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583676178] [2024-11-09 06:47:17,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:47:17,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:47:17,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:47:18,272 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 304 proven. 382 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-09 06:47:18,272 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:47:18,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583676178] [2024-11-09 06:47:18,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583676178] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:47:18,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907477280] [2024-11-09 06:47:18,273 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:47:18,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:47:18,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:47:18,275 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:47:18,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-09 06:47:18,403 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-09 06:47:18,403 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:47:18,405 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 06:47:18,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:47:19,226 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 0 proven. 646 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-09 06:47:19,226 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:47:19,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907477280] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:47:19,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [895268564] [2024-11-09 06:47:19,762 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 06:47:19,762 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:47:19,763 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:47:19,763 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:47:19,763 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:47:20,632 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 06:47:20,648 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:47:20,669 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:47:26,488 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '54147#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_170| Int) (|v_ULTIMATE.start_main_~x2~0#1_64| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_170| |v_ULTIMATE.start_main_~x2~0#1_64|)) (<= |v_ULTIMATE.start_main_~x2~0#1_64| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_170|))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:47:26,488 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:47:26,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:47:26,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 23 [2024-11-09 06:47:26,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940493708] [2024-11-09 06:47:26,489 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 06:47:26,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 06:47:26,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:47:26,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 06:47:26,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=2147, Unknown=0, NotChecked=0, Total=2352 [2024-11-09 06:47:26,490 INFO L87 Difference]: Start difference. First operand 3220 states and 3540 transitions. Second operand has 23 states, 23 states have (on average 12.434782608695652) internal successors, (286), 23 states have internal predecessors, (286), 19 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2024-11-09 06:47:29,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:47:29,462 INFO L93 Difference]: Finished difference Result 4287 states and 4728 transitions. [2024-11-09 06:47:29,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-09 06:47:29,463 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 12.434782608695652) internal successors, (286), 23 states have internal predecessors, (286), 19 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) Word has length 191 [2024-11-09 06:47:29,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:47:29,475 INFO L225 Difference]: With dead ends: 4287 [2024-11-09 06:47:29,475 INFO L226 Difference]: Without dead ends: 3568 [2024-11-09 06:47:29,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 349 SyntacticMatches, 10 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2246 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=489, Invalid=6153, Unknown=0, NotChecked=0, Total=6642 [2024-11-09 06:47:29,478 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 280 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 3144 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 3176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 3144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:47:29,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 1289 Invalid, 3176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 3144 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 06:47:29,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3568 states. [2024-11-09 06:47:29,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3568 to 3040. [2024-11-09 06:47:29,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3040 states, 2855 states have (on average 1.0388791593695272) internal successors, (2966), 2858 states have internal predecessors, (2966), 178 states have call successors, (178), 3 states have call predecessors, (178), 3 states have return successors, (178), 178 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-09 06:47:29,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3040 states to 3040 states and 3322 transitions. [2024-11-09 06:47:29,997 INFO L78 Accepts]: Start accepts. Automaton has 3040 states and 3322 transitions. Word has length 191 [2024-11-09 06:47:29,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:47:29,998 INFO L471 AbstractCegarLoop]: Abstraction has 3040 states and 3322 transitions. [2024-11-09 06:47:29,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.434782608695652) internal successors, (286), 23 states have internal predecessors, (286), 19 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2024-11-09 06:47:29,998 INFO L276 IsEmpty]: Start isEmpty. Operand 3040 states and 3322 transitions. [2024-11-09 06:47:30,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-09 06:47:30,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:47:30,004 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:47:30,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-09 06:47:30,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:47:30,205 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:47:30,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:47:30,205 INFO L85 PathProgramCache]: Analyzing trace with hash -304821835, now seen corresponding path program 9 times [2024-11-09 06:47:30,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:47:30,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185096058] [2024-11-09 06:47:30,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:47:30,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:47:30,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:47:30,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1516776091] [2024-11-09 06:47:30,254 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 06:47:30,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:47:30,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:47:30,257 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:47:30,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-09 06:47:30,396 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 06:47:30,396 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:47:30,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-09 06:47:30,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:47:32,903 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 9 proven. 651 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-09 06:47:32,919 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:47:34,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:47:34,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185096058] [2024-11-09 06:47:34,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:47:34,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516776091] [2024-11-09 06:47:34,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516776091] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:47:34,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [677445293] [2024-11-09 06:47:34,126 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 06:47:34,126 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:47:34,127 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:47:34,127 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:47:34,127 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:47:34,912 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 06:47:34,942 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:47:34,965 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:47:41,051 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '63131#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~x2~0#1_67| Int) (|v_ULTIMATE.start_main_~y1~0#1_179| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_179| |v_ULTIMATE.start_main_~x2~0#1_67|)) (<= |v_ULTIMATE.start_main_~x2~0#1_67| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_179|))) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:47:41,051 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:47:41,052 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:47:41,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2024-11-09 06:47:41,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070077263] [2024-11-09 06:47:41,052 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:47:41,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-09 06:47:41,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:47:41,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-09 06:47:41,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=396, Invalid=3026, Unknown=0, NotChecked=0, Total=3422 [2024-11-09 06:47:41,055 INFO L87 Difference]: Start difference. First operand 3040 states and 3322 transitions. Second operand has 31 states, 27 states have (on average 5.888888888888889) internal successors, (159), 29 states have internal predecessors, (159), 12 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:47:45,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:47:45,143 INFO L93 Difference]: Finished difference Result 3244 states and 3542 transitions. [2024-11-09 06:47:45,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-09 06:47:45,144 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 27 states have (on average 5.888888888888889) internal successors, (159), 29 states have internal predecessors, (159), 12 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) Word has length 191 [2024-11-09 06:47:45,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:47:45,154 INFO L225 Difference]: With dead ends: 3244 [2024-11-09 06:47:45,154 INFO L226 Difference]: Without dead ends: 3242 [2024-11-09 06:47:45,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 311 SyntacticMatches, 25 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4210 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=1105, Invalid=7085, Unknown=0, NotChecked=0, Total=8190 [2024-11-09 06:47:45,156 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 204 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 1190 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:47:45,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 212 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1190 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 06:47:45,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3242 states. [2024-11-09 06:47:45,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3242 to 3040. [2024-11-09 06:47:45,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3040 states, 2855 states have (on average 1.0381786339754817) internal successors, (2964), 2858 states have internal predecessors, (2964), 178 states have call successors, (178), 3 states have call predecessors, (178), 3 states have return successors, (178), 178 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-09 06:47:45,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3040 states to 3040 states and 3320 transitions. [2024-11-09 06:47:45,643 INFO L78 Accepts]: Start accepts. Automaton has 3040 states and 3320 transitions. Word has length 191 [2024-11-09 06:47:45,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:47:45,644 INFO L471 AbstractCegarLoop]: Abstraction has 3040 states and 3320 transitions. [2024-11-09 06:47:45,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 27 states have (on average 5.888888888888889) internal successors, (159), 29 states have internal predecessors, (159), 12 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:47:45,645 INFO L276 IsEmpty]: Start isEmpty. Operand 3040 states and 3320 transitions. [2024-11-09 06:47:45,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-09 06:47:45,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:47:45,651 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:47:45,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-09 06:47:45,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:47:45,852 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:47:45,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:47:45,852 INFO L85 PathProgramCache]: Analyzing trace with hash 605681552, now seen corresponding path program 3 times [2024-11-09 06:47:45,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:47:45,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892217942] [2024-11-09 06:47:45,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:47:45,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:47:45,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:47:46,300 INFO L134 CoverageAnalysis]: Checked inductivity of 942 backedges. 0 proven. 830 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-09 06:47:46,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:47:46,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892217942] [2024-11-09 06:47:46,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892217942] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:47:46,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047707108] [2024-11-09 06:47:46,301 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 06:47:46,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:47:46,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:47:46,303 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:47:46,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-09 06:47:46,413 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 06:47:46,413 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:47:46,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 06:47:46,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:47:46,720 INFO L134 CoverageAnalysis]: Checked inductivity of 942 backedges. 0 proven. 830 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-09 06:47:46,721 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:47:47,361 INFO L134 CoverageAnalysis]: Checked inductivity of 942 backedges. 0 proven. 830 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-09 06:47:47,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047707108] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:47:47,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [89475684] [2024-11-09 06:47:47,363 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 06:47:47,363 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:47:47,364 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:47:47,364 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:47:47,364 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:47:48,072 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 31 for LOIs [2024-11-09 06:47:48,076 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:47:48,088 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:47:49,793 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '71522#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x2~0#1| 2147483647) (= |ULTIMATE.start_main_~y1~0#1| 0) (<= 0 (+ |ULTIMATE.start_main_~x2~0#1| 2147483648)) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:47:49,793 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:47:49,794 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:47:49,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2024-11-09 06:47:49,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112115364] [2024-11-09 06:47:49,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:47:49,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-09 06:47:49,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:47:49,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-09 06:47:49,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=365, Invalid=1357, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 06:47:49,797 INFO L87 Difference]: Start difference. First operand 3040 states and 3320 transitions. Second operand has 25 states, 24 states have (on average 14.125) internal successors, (339), 25 states have internal predecessors, (339), 24 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 24 states have call predecessors, (25), 24 states have call successors, (25) [2024-11-09 06:47:50,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:47:50,685 INFO L93 Difference]: Finished difference Result 3578 states and 3967 transitions. [2024-11-09 06:47:50,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-09 06:47:50,686 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 14.125) internal successors, (339), 25 states have internal predecessors, (339), 24 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 24 states have call predecessors, (25), 24 states have call successors, (25) Word has length 201 [2024-11-09 06:47:50,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:47:50,697 INFO L225 Difference]: With dead ends: 3578 [2024-11-09 06:47:50,698 INFO L226 Difference]: Without dead ends: 3577 [2024-11-09 06:47:50,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 613 GetRequests, 562 SyntacticMatches, 11 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1130 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=365, Invalid=1357, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 06:47:50,700 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 17 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:47:50,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 202 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:47:50,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3577 states. [2024-11-09 06:47:51,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3577 to 3577. [2024-11-09 06:47:51,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3577 states, 3359 states have (on average 1.0443584400119084) internal successors, (3508), 3362 states have internal predecessors, (3508), 211 states have call successors, (211), 3 states have call predecessors, (211), 3 states have return successors, (211), 211 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-09 06:47:51,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3577 states to 3577 states and 3930 transitions. [2024-11-09 06:47:51,152 INFO L78 Accepts]: Start accepts. Automaton has 3577 states and 3930 transitions. Word has length 201 [2024-11-09 06:47:51,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:47:51,153 INFO L471 AbstractCegarLoop]: Abstraction has 3577 states and 3930 transitions. [2024-11-09 06:47:51,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 14.125) internal successors, (339), 25 states have internal predecessors, (339), 24 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 24 states have call predecessors, (25), 24 states have call successors, (25) [2024-11-09 06:47:51,153 INFO L276 IsEmpty]: Start isEmpty. Operand 3577 states and 3930 transitions. [2024-11-09 06:47:51,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-09 06:47:51,161 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:47:51,161 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:47:51,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-09 06:47:51,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:47:51,362 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:47:51,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:47:51,363 INFO L85 PathProgramCache]: Analyzing trace with hash -825242905, now seen corresponding path program 10 times [2024-11-09 06:47:51,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:47:51,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266182067] [2024-11-09 06:47:51,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:47:51,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:47:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:47:51,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1146 backedges. 418 proven. 594 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-09 06:47:51,953 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:47:51,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266182067] [2024-11-09 06:47:51,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266182067] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:47:51,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486162212] [2024-11-09 06:47:51,954 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 06:47:51,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:47:51,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:47:51,956 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:47:51,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-09 06:47:52,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:47:52,070 INFO L255 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 06:47:52,072 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:47:52,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1146 backedges. 460 proven. 552 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-09 06:47:52,753 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:47:53,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1146 backedges. 460 proven. 552 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-09 06:47:53,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486162212] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:47:53,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [743654169] [2024-11-09 06:47:53,299 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 06:47:53,299 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:47:53,300 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:47:53,300 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:47:53,300 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:47:54,411 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 06:47:54,422 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:47:54,433 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:48:00,710 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '80986#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_188| Int) (|v_ULTIMATE.start_main_~x2~0#1_68| Int)) (and (<= |v_ULTIMATE.start_main_~x2~0#1_68| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_188|) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_188| |v_ULTIMATE.start_main_~x2~0#1_68|)))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:48:00,710 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:48:00,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:48:00,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 32 [2024-11-09 06:48:00,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713269684] [2024-11-09 06:48:00,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:48:00,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-09 06:48:00,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:48:00,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-09 06:48:00,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=384, Invalid=2586, Unknown=0, NotChecked=0, Total=2970 [2024-11-09 06:48:00,715 INFO L87 Difference]: Start difference. First operand 3577 states and 3930 transitions. Second operand has 32 states, 32 states have (on average 13.4375) internal successors, (430), 32 states have internal predecessors, (430), 29 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) [2024-11-09 06:48:02,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:48:02,497 INFO L93 Difference]: Finished difference Result 5116 states and 5689 transitions. [2024-11-09 06:48:02,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-09 06:48:02,498 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 13.4375) internal successors, (430), 32 states have internal predecessors, (430), 29 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) Word has length 227 [2024-11-09 06:48:02,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:48:02,511 INFO L225 Difference]: With dead ends: 5116 [2024-11-09 06:48:02,511 INFO L226 Difference]: Without dead ends: 4459 [2024-11-09 06:48:02,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 712 GetRequests, 610 SyntacticMatches, 31 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3255 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=700, Invalid=4556, Unknown=0, NotChecked=0, Total=5256 [2024-11-09 06:48:02,516 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 139 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:48:02,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 508 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1056 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 06:48:02,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4459 states. [2024-11-09 06:48:03,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4459 to 3694. [2024-11-09 06:48:03,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3694 states, 3468 states have (on average 1.044405997693195) internal successors, (3622), 3471 states have internal predecessors, (3622), 219 states have call successors, (219), 3 states have call predecessors, (219), 3 states have return successors, (219), 219 states have call predecessors, (219), 219 states have call successors, (219) [2024-11-09 06:48:03,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3694 states to 3694 states and 4060 transitions. [2024-11-09 06:48:03,069 INFO L78 Accepts]: Start accepts. Automaton has 3694 states and 4060 transitions. Word has length 227 [2024-11-09 06:48:03,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:48:03,070 INFO L471 AbstractCegarLoop]: Abstraction has 3694 states and 4060 transitions. [2024-11-09 06:48:03,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 13.4375) internal successors, (430), 32 states have internal predecessors, (430), 29 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) [2024-11-09 06:48:03,070 INFO L276 IsEmpty]: Start isEmpty. Operand 3694 states and 4060 transitions. [2024-11-09 06:48:03,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-09 06:48:03,076 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:48:03,076 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:48:03,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-09 06:48:03,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-09 06:48:03,277 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:48:03,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:48:03,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1152324273, now seen corresponding path program 11 times [2024-11-09 06:48:03,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:48:03,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422910596] [2024-11-09 06:48:03,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:48:03,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:48:03,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:48:03,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1223562279] [2024-11-09 06:48:03,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:48:03,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:48:03,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:48:03,332 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:48:03,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-09 06:48:03,507 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-11-09 06:48:03,508 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:48:03,510 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 06:48:03,514 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:48:04,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1118 backedges. 0 proven. 816 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2024-11-09 06:48:04,097 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:48:04,660 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:48:04,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422910596] [2024-11-09 06:48:04,661 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:48:04,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223562279] [2024-11-09 06:48:04,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223562279] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:48:04,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [392332886] [2024-11-09 06:48:04,662 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 06:48:04,662 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:48:04,662 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:48:04,663 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:48:04,663 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:48:05,438 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 06:48:05,449 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:48:05,471 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:48:09,352 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '91694#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_197| Int) (|v_ULTIMATE.start_main_~x2~0#1_69| Int)) (and (<= |v_ULTIMATE.start_main_~x2~0#1_69| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_197|) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_197| |v_ULTIMATE.start_main_~x2~0#1_69|)))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:48:09,352 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:48:09,352 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:48:09,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-09 06:48:09,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580680079] [2024-11-09 06:48:09,352 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:48:09,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:48:09,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:48:09,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:48:09,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=1117, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 06:48:09,355 INFO L87 Difference]: Start difference. First operand 3694 states and 4060 transitions. Second operand has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-09 06:48:10,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:48:10,973 INFO L93 Difference]: Finished difference Result 5316 states and 5879 transitions. [2024-11-09 06:48:10,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 06:48:10,974 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 227 [2024-11-09 06:48:10,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:48:10,982 INFO L225 Difference]: With dead ends: 5316 [2024-11-09 06:48:10,982 INFO L226 Difference]: Without dead ends: 4828 [2024-11-09 06:48:10,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 419 SyntacticMatches, 12 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 920 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=287, Invalid=2575, Unknown=0, NotChecked=0, Total=2862 [2024-11-09 06:48:10,985 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 138 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:48:10,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 366 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 06:48:10,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4828 states. [2024-11-09 06:48:11,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4828 to 4056. [2024-11-09 06:48:11,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4056 states, 3806 states have (on average 1.0496584340514976) internal successors, (3995), 3809 states have internal predecessors, (3995), 243 states have call successors, (243), 3 states have call predecessors, (243), 3 states have return successors, (243), 243 states have call predecessors, (243), 243 states have call successors, (243) [2024-11-09 06:48:11,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4056 states to 4056 states and 4481 transitions. [2024-11-09 06:48:11,494 INFO L78 Accepts]: Start accepts. Automaton has 4056 states and 4481 transitions. Word has length 227 [2024-11-09 06:48:11,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:48:11,495 INFO L471 AbstractCegarLoop]: Abstraction has 4056 states and 4481 transitions. [2024-11-09 06:48:11,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-09 06:48:11,495 INFO L276 IsEmpty]: Start isEmpty. Operand 4056 states and 4481 transitions. [2024-11-09 06:48:11,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-09 06:48:11,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:48:11,501 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:48:11,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-09 06:48:11,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-09 06:48:11,706 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:48:11,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:48:11,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1489562865, now seen corresponding path program 12 times [2024-11-09 06:48:11,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:48:11,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969028914] [2024-11-09 06:48:11,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:48:11,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:48:11,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:48:11,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [104594755] [2024-11-09 06:48:11,777 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 06:48:11,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:48:11,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:48:11,779 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:48:11,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-09 06:48:11,936 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 06:48:11,936 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:48:11,939 INFO L255 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-09 06:48:11,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:48:15,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1082 backedges. 26 proven. 950 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-09 06:48:15,868 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:48:16,660 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:48:16,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969028914] [2024-11-09 06:48:16,661 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:48:16,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104594755] [2024-11-09 06:48:16,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104594755] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:48:16,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1156664997] [2024-11-09 06:48:16,663 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 06:48:16,664 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:48:16,664 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:48:16,664 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:48:16,664 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:48:17,505 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 06:48:17,517 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:48:17,538 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:48:22,802 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '103064#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_207| Int) (|v_ULTIMATE.start_main_~x2~0#1_72| Int)) (and (<= |v_ULTIMATE.start_main_~x2~0#1_72| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_207|) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_207| |v_ULTIMATE.start_main_~x2~0#1_72|)))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:48:22,803 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:48:22,803 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:48:22,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2024-11-09 06:48:22,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908040113] [2024-11-09 06:48:22,803 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:48:22,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-09 06:48:22,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:48:22,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-09 06:48:22,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=477, Invalid=3945, Unknown=0, NotChecked=0, Total=4422 [2024-11-09 06:48:22,810 INFO L87 Difference]: Start difference. First operand 4056 states and 4481 transitions. Second operand has 39 states, 35 states have (on average 5.4) internal successors, (189), 35 states have internal predecessors, (189), 14 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 06:48:28,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:48:28,944 INFO L93 Difference]: Finished difference Result 5201 states and 5762 transitions. [2024-11-09 06:48:28,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-09 06:48:28,945 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 35 states have (on average 5.4) internal successors, (189), 35 states have internal predecessors, (189), 14 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) Word has length 227 [2024-11-09 06:48:28,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:48:28,953 INFO L225 Difference]: With dead ends: 5201 [2024-11-09 06:48:28,954 INFO L226 Difference]: Without dead ends: 4527 [2024-11-09 06:48:28,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 388 SyntacticMatches, 12 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4891 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=1688, Invalid=11194, Unknown=0, NotChecked=0, Total=12882 [2024-11-09 06:48:28,958 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 381 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 1898 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:48:28,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 315 Invalid, 1979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1898 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 06:48:28,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4527 states. [2024-11-09 06:48:29,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4527 to 3905. [2024-11-09 06:48:29,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3905 states, 3664 states have (on average 1.050764192139738) internal successors, (3850), 3667 states have internal predecessors, (3850), 234 states have call successors, (234), 3 states have call predecessors, (234), 3 states have return successors, (234), 234 states have call predecessors, (234), 234 states have call successors, (234) [2024-11-09 06:48:29,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3905 states to 3905 states and 4318 transitions. [2024-11-09 06:48:29,557 INFO L78 Accepts]: Start accepts. Automaton has 3905 states and 4318 transitions. Word has length 227 [2024-11-09 06:48:29,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:48:29,558 INFO L471 AbstractCegarLoop]: Abstraction has 3905 states and 4318 transitions. [2024-11-09 06:48:29,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 35 states have (on average 5.4) internal successors, (189), 35 states have internal predecessors, (189), 14 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 06:48:29,558 INFO L276 IsEmpty]: Start isEmpty. Operand 3905 states and 4318 transitions. [2024-11-09 06:48:29,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-09 06:48:29,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:48:29,566 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:48:29,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-09 06:48:29,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-09 06:48:29,770 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:48:29,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:48:29,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1679214743, now seen corresponding path program 13 times [2024-11-09 06:48:29,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:48:29,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454942452] [2024-11-09 06:48:29,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:48:29,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:48:29,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:48:29,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1024420445] [2024-11-09 06:48:29,859 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 06:48:29,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:48:29,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:48:29,861 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:48:29,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-09 06:48:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:48:30,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 06:48:30,043 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:48:30,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1486 backedges. 0 proven. 1230 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-09 06:48:30,955 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:48:32,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1486 backedges. 0 proven. 1230 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-09 06:48:32,603 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:48:32,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454942452] [2024-11-09 06:48:32,603 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:48:32,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024420445] [2024-11-09 06:48:32,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024420445] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:48:32,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [346988315] [2024-11-09 06:48:32,605 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 06:48:32,605 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:48:32,606 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:48:32,606 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:48:32,606 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:48:33,622 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 06:48:33,639 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:48:33,659 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:48:38,203 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '115029#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_227| Int) (|v_ULTIMATE.start_main_~x2~0#1_73| Int)) (and (<= |v_ULTIMATE.start_main_~x2~0#1_73| 2147483647) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_227| |v_ULTIMATE.start_main_~x2~0#1_73|)) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_227|))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:48:38,203 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:48:38,204 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:48:38,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-11-09 06:48:38,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514865657] [2024-11-09 06:48:38,204 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 06:48:38,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 06:48:38,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:48:38,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 06:48:38,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=1760, Unknown=0, NotChecked=0, Total=1980 [2024-11-09 06:48:38,206 INFO L87 Difference]: Start difference. First operand 3905 states and 4318 transitions. Second operand has 22 states, 21 states have (on average 14.80952380952381) internal successors, (311), 22 states have internal predecessors, (311), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-09 06:48:43,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:48:43,274 INFO L93 Difference]: Finished difference Result 8085 states and 9040 transitions. [2024-11-09 06:48:43,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-09 06:48:43,275 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 14.80952380952381) internal successors, (311), 22 states have internal predecessors, (311), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) Word has length 263 [2024-11-09 06:48:43,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:48:43,292 INFO L225 Difference]: With dead ends: 8085 [2024-11-09 06:48:43,293 INFO L226 Difference]: Without dead ends: 8082 [2024-11-09 06:48:43,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 812 GetRequests, 730 SyntacticMatches, 14 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1382 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=723, Invalid=4107, Unknown=0, NotChecked=0, Total=4830 [2024-11-09 06:48:43,296 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 250 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 1763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:48:43,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 810 Invalid, 1763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1719 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-09 06:48:43,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8082 states. [2024-11-09 06:48:44,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8082 to 4477. [2024-11-09 06:48:44,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4477 states, 4200 states have (on average 1.0547619047619048) internal successors, (4430), 4203 states have internal predecessors, (4430), 270 states have call successors, (270), 3 states have call predecessors, (270), 3 states have return successors, (270), 270 states have call predecessors, (270), 270 states have call successors, (270) [2024-11-09 06:48:44,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4477 states to 4477 states and 4970 transitions. [2024-11-09 06:48:44,035 INFO L78 Accepts]: Start accepts. Automaton has 4477 states and 4970 transitions. Word has length 263 [2024-11-09 06:48:44,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:48:44,036 INFO L471 AbstractCegarLoop]: Abstraction has 4477 states and 4970 transitions. [2024-11-09 06:48:44,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 14.80952380952381) internal successors, (311), 22 states have internal predecessors, (311), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-09 06:48:44,037 INFO L276 IsEmpty]: Start isEmpty. Operand 4477 states and 4970 transitions. [2024-11-09 06:48:44,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-09 06:48:44,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:48:44,043 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 10, 10, 10, 10, 10, 5, 5, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:48:44,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-09 06:48:44,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-09 06:48:44,244 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:48:44,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:48:44,244 INFO L85 PathProgramCache]: Analyzing trace with hash -804527058, now seen corresponding path program 1 times [2024-11-09 06:48:44,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:48:44,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234902098] [2024-11-09 06:48:44,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:48:44,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:48:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:48:44,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1684 backedges. 0 proven. 1272 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2024-11-09 06:48:44,574 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:48:44,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234902098] [2024-11-09 06:48:44,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234902098] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:48:44,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908838408] [2024-11-09 06:48:44,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:48:44,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:48:44,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:48:44,578 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:48:44,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-09 06:48:44,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:48:44,730 INFO L255 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:48:44,740 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:48:45,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1684 backedges. 0 proven. 1272 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2024-11-09 06:48:45,212 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:48:45,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1684 backedges. 0 proven. 1272 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2024-11-09 06:48:45,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908838408] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:48:45,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [135575274] [2024-11-09 06:48:45,760 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 06:48:45,760 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:48:45,760 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:48:45,760 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:48:45,761 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:48:46,615 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 06:48:46,626 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:48:46,643 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:48:49,785 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '130908#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x2~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~x2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:48:49,785 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:48:49,785 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:48:49,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-11-09 06:48:49,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261800104] [2024-11-09 06:48:49,786 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:48:49,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:48:49,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:48:49,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:48:49,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1084, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 06:48:49,789 INFO L87 Difference]: Start difference. First operand 4477 states and 4970 transitions. Second operand has 13 states, 12 states have (on average 18.333333333333332) internal successors, (220), 13 states have internal predecessors, (220), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-09 06:48:51,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:48:51,768 INFO L93 Difference]: Finished difference Result 11567 states and 13144 transitions. [2024-11-09 06:48:51,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:48:51,769 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 18.333333333333332) internal successors, (220), 13 states have internal predecessors, (220), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 276 [2024-11-09 06:48:51,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:48:51,796 INFO L225 Difference]: With dead ends: 11567 [2024-11-09 06:48:51,796 INFO L226 Difference]: Without dead ends: 11566 [2024-11-09 06:48:51,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 832 GetRequests, 783 SyntacticMatches, 15 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 891 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=176, Invalid=1084, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 06:48:51,801 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 17 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:48:51,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 191 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:48:51,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11566 states. [2024-11-09 06:48:52,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11566 to 4616. [2024-11-09 06:48:52,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4616 states, 4330 states have (on average 1.0545034642032332) internal successors, (4566), 4333 states have internal predecessors, (4566), 279 states have call successors, (279), 3 states have call predecessors, (279), 3 states have return successors, (279), 279 states have call predecessors, (279), 279 states have call successors, (279) [2024-11-09 06:48:52,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4616 states to 4616 states and 5124 transitions. [2024-11-09 06:48:52,805 INFO L78 Accepts]: Start accepts. Automaton has 4616 states and 5124 transitions. Word has length 276 [2024-11-09 06:48:52,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:48:52,806 INFO L471 AbstractCegarLoop]: Abstraction has 4616 states and 5124 transitions. [2024-11-09 06:48:52,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 18.333333333333332) internal successors, (220), 13 states have internal predecessors, (220), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-09 06:48:52,806 INFO L276 IsEmpty]: Start isEmpty. Operand 4616 states and 5124 transitions. [2024-11-09 06:48:52,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-11-09 06:48:52,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:48:52,813 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:48:52,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-09 06:48:53,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-09 06:48:53,013 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:48:53,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:48:53,014 INFO L85 PathProgramCache]: Analyzing trace with hash -286675703, now seen corresponding path program 14 times [2024-11-09 06:48:53,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:48:53,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783912142] [2024-11-09 06:48:53,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:48:53,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:48:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:48:53,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1839739548] [2024-11-09 06:48:53,068 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:48:53,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:48:53,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:48:53,071 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:48:53,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-09 06:48:53,200 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-09 06:48:53,200 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:48:53,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 06:48:53,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:48:53,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1793 backedges. 766 proven. 161 refuted. 0 times theorem prover too weak. 866 trivial. 0 not checked. [2024-11-09 06:48:53,616 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:48:54,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:48:54,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783912142] [2024-11-09 06:48:54,073 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:48:54,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839739548] [2024-11-09 06:48:54,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839739548] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:48:54,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1256210014] [2024-11-09 06:48:54,075 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 06:48:54,075 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:48:54,075 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:48:54,075 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:48:54,076 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:48:55,126 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 06:48:55,135 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:48:55,147 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:48:59,142 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '150037#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~y1~0#1_248| Int) (|v_ULTIMATE.start_main_~x2~0#1_74| Int)) (and (<= 0 |v_ULTIMATE.start_main_~y1~0#1_248|) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_248| |v_ULTIMATE.start_main_~x2~0#1_74|)) (<= |v_ULTIMATE.start_main_~x2~0#1_74| 2147483647))) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:48:59,142 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:48:59,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:48:59,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 06:48:59,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940027114] [2024-11-09 06:48:59,143 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:48:59,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:48:59,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:48:59,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:48:59,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1182, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 06:48:59,145 INFO L87 Difference]: Start difference. First operand 4616 states and 5124 transitions. Second operand has 11 states, 10 states have (on average 10.5) internal successors, (105), 11 states have internal predecessors, (105), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-09 06:49:00,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:49:00,709 INFO L93 Difference]: Finished difference Result 5372 states and 5971 transitions. [2024-11-09 06:49:00,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 06:49:00,710 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.5) internal successors, (105), 11 states have internal predecessors, (105), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 281 [2024-11-09 06:49:00,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:49:00,718 INFO L225 Difference]: With dead ends: 5372 [2024-11-09 06:49:00,718 INFO L226 Difference]: Without dead ends: 4598 [2024-11-09 06:49:00,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 579 GetRequests, 523 SyntacticMatches, 15 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=193, Invalid=1613, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 06:49:00,722 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 70 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:49:00,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 510 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 06:49:00,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4598 states. [2024-11-09 06:49:01,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4598 to 4436. [2024-11-09 06:49:01,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4436 states, 4159 states have (on average 1.0557826400577062) internal successors, (4391), 4162 states have internal predecessors, (4391), 270 states have call successors, (270), 3 states have call predecessors, (270), 3 states have return successors, (270), 270 states have call predecessors, (270), 270 states have call successors, (270) [2024-11-09 06:49:01,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4436 states to 4436 states and 4931 transitions. [2024-11-09 06:49:01,558 INFO L78 Accepts]: Start accepts. Automaton has 4436 states and 4931 transitions. Word has length 281 [2024-11-09 06:49:01,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:49:01,559 INFO L471 AbstractCegarLoop]: Abstraction has 4436 states and 4931 transitions. [2024-11-09 06:49:01,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.5) internal successors, (105), 11 states have internal predecessors, (105), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-09 06:49:01,559 INFO L276 IsEmpty]: Start isEmpty. Operand 4436 states and 4931 transitions. [2024-11-09 06:49:01,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-09 06:49:01,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:49:01,563 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:49:01,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-09 06:49:01,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-09 06:49:01,764 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:49:01,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:49:01,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1801826647, now seen corresponding path program 3 times [2024-11-09 06:49:01,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:49:01,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507360924] [2024-11-09 06:49:01,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:49:01,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:49:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:49:02,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1911 backedges. 14 proven. 1699 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-09 06:49:02,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:49:02,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507360924] [2024-11-09 06:49:02,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507360924] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:49:02,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654532487] [2024-11-09 06:49:02,666 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 06:49:02,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:49:02,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:49:02,667 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:49:02,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-09 06:49:02,787 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 06:49:02,787 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:49:02,789 INFO L255 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 06:49:02,800 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:49:03,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1911 backedges. 14 proven. 1699 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-09 06:49:03,188 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:49:04,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1911 backedges. 14 proven. 1699 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-09 06:49:04,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654532487] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:49:04,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [420313120] [2024-11-09 06:49:04,033 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 06:49:04,034 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:49:04,034 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:49:04,034 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:49:04,034 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:49:04,815 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 06:49:04,826 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:49:04,838 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:49:08,981 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '162847#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~y1~0#1_257| Int) (|v_ULTIMATE.start_main_~x2~0#1_77| Int)) (and (<= 1 (* |v_ULTIMATE.start_main_~y1~0#1_257| |v_ULTIMATE.start_main_~x2~0#1_77|)) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_257|) (<= (* |v_ULTIMATE.start_main_~y1~0#1_257| |v_ULTIMATE.start_main_~x2~0#1_77|) 2147483647))) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:49:08,981 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:49:08,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:49:08,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 36 [2024-11-09 06:49:08,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737609327] [2024-11-09 06:49:08,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:49:08,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-09 06:49:08,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:49:08,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-09 06:49:08,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=621, Invalid=2919, Unknown=0, NotChecked=0, Total=3540 [2024-11-09 06:49:08,984 INFO L87 Difference]: Start difference. First operand 4436 states and 4931 transitions. Second operand has 37 states, 35 states have (on average 13.314285714285715) internal successors, (466), 37 states have internal predecessors, (466), 31 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2024-11-09 06:49:15,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:49:15,881 INFO L93 Difference]: Finished difference Result 20440 states and 22988 transitions. [2024-11-09 06:49:15,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2024-11-09 06:49:15,882 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 35 states have (on average 13.314285714285715) internal successors, (466), 37 states have internal predecessors, (466), 31 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) Word has length 283 [2024-11-09 06:49:15,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:49:15,910 INFO L225 Difference]: With dead ends: 20440 [2024-11-09 06:49:15,910 INFO L226 Difference]: Without dead ends: 20439 [2024-11-09 06:49:15,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 940 GetRequests, 792 SyntacticMatches, 16 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7153 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=4293, Invalid=13529, Unknown=0, NotChecked=0, Total=17822 [2024-11-09 06:49:15,916 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 525 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:49:15,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 210 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 06:49:15,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20439 states. [2024-11-09 06:49:18,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20439 to 18378. [2024-11-09 06:49:18,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18378 states, 17267 states have (on average 1.0345167081716569) internal successors, (17863), 17270 states have internal predecessors, (17863), 1104 states have call successors, (1104), 3 states have call predecessors, (1104), 3 states have return successors, (1104), 1104 states have call predecessors, (1104), 1104 states have call successors, (1104) [2024-11-09 06:49:18,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18378 states to 18378 states and 20071 transitions. [2024-11-09 06:49:18,964 INFO L78 Accepts]: Start accepts. Automaton has 18378 states and 20071 transitions. Word has length 283 [2024-11-09 06:49:18,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:49:18,964 INFO L471 AbstractCegarLoop]: Abstraction has 18378 states and 20071 transitions. [2024-11-09 06:49:18,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 35 states have (on average 13.314285714285715) internal successors, (466), 37 states have internal predecessors, (466), 31 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2024-11-09 06:49:18,965 INFO L276 IsEmpty]: Start isEmpty. Operand 18378 states and 20071 transitions. [2024-11-09 06:49:18,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-11-09 06:49:18,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:49:18,971 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:49:18,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-09 06:49:19,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:49:19,176 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:49:19,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:49:19,176 INFO L85 PathProgramCache]: Analyzing trace with hash -942971897, now seen corresponding path program 15 times [2024-11-09 06:49:19,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:49:19,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804120412] [2024-11-09 06:49:19,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:49:19,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:49:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:49:19,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [724418592] [2024-11-09 06:49:19,230 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 06:49:19,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:49:19,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:49:19,234 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:49:19,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-09 06:49:19,405 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 06:49:19,405 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:49:19,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-09 06:49:19,415 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:49:21,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2098 backedges. 7 proven. 1877 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2024-11-09 06:49:21,238 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:49:21,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:49:21,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804120412] [2024-11-09 06:49:21,772 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:49:21,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724418592] [2024-11-09 06:49:21,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724418592] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:49:21,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1555240714] [2024-11-09 06:49:21,774 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 06:49:21,774 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:49:21,774 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:49:21,774 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:49:21,775 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:49:22,596 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 06:49:22,605 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:49:22,616 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:49:28,046 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '207641#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_264| Int) (|v_ULTIMATE.start_main_~x2~0#1_78| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_264| |v_ULTIMATE.start_main_~x2~0#1_78|)) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_264|) (<= |v_ULTIMATE.start_main_~x2~0#1_78| 2147483647))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:49:28,047 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:49:28,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:49:28,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2024-11-09 06:49:28,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997732504] [2024-11-09 06:49:28,047 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:49:28,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-09 06:49:28,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:49:28,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-09 06:49:28,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=3058, Unknown=0, NotChecked=0, Total=3306 [2024-11-09 06:49:28,050 INFO L87 Difference]: Start difference. First operand 18378 states and 20071 transitions. Second operand has 32 states, 30 states have (on average 8.266666666666667) internal successors, (248), 32 states have internal predecessors, (248), 17 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-09 06:49:33,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:49:33,021 INFO L93 Difference]: Finished difference Result 21837 states and 23829 transitions. [2024-11-09 06:49:33,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-09 06:49:33,022 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 8.266666666666667) internal successors, (248), 32 states have internal predecessors, (248), 17 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) Word has length 299 [2024-11-09 06:49:33,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:49:33,043 INFO L225 Difference]: With dead ends: 21837 [2024-11-09 06:49:33,043 INFO L226 Difference]: Without dead ends: 18469 [2024-11-09 06:49:33,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 612 GetRequests, 537 SyntacticMatches, 16 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1744 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=272, Invalid=3388, Unknown=0, NotChecked=0, Total=3660 [2024-11-09 06:49:33,050 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 39 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 3019 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 3028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:49:33,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 755 Invalid, 3028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 3019 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-09 06:49:33,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18469 states. [2024-11-09 06:49:36,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18469 to 18314. [2024-11-09 06:49:36,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18314 states, 17207 states have (on average 1.0343464868948684) internal successors, (17798), 17210 states have internal predecessors, (17798), 1100 states have call successors, (1100), 3 states have call predecessors, (1100), 3 states have return successors, (1100), 1100 states have call predecessors, (1100), 1100 states have call successors, (1100) [2024-11-09 06:49:36,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18314 states to 18314 states and 19998 transitions. [2024-11-09 06:49:36,161 INFO L78 Accepts]: Start accepts. Automaton has 18314 states and 19998 transitions. Word has length 299 [2024-11-09 06:49:36,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:49:36,161 INFO L471 AbstractCegarLoop]: Abstraction has 18314 states and 19998 transitions. [2024-11-09 06:49:36,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 8.266666666666667) internal successors, (248), 32 states have internal predecessors, (248), 17 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-09 06:49:36,162 INFO L276 IsEmpty]: Start isEmpty. Operand 18314 states and 19998 transitions. [2024-11-09 06:49:36,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-11-09 06:49:36,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:49:36,171 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 15, 15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:49:36,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-09 06:49:36,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-09 06:49:36,371 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:49:36,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:49:36,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1352983887, now seen corresponding path program 16 times [2024-11-09 06:49:36,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:49:36,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040466357] [2024-11-09 06:49:36,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:49:36,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:49:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:49:37,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2381 backedges. 503 proven. 1604 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-09 06:49:37,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:49:37,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040466357] [2024-11-09 06:49:37,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040466357] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:49:37,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497518973] [2024-11-09 06:49:37,296 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 06:49:37,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:49:37,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:49:37,299 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:49:37,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-09 06:49:37,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:49:37,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 06:49:37,447 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:49:38,187 INFO L134 CoverageAnalysis]: Checked inductivity of 2381 backedges. 599 proven. 1508 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-09 06:49:38,187 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:49:38,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2381 backedges. 599 proven. 1508 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-09 06:49:38,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497518973] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:49:38,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [418790832] [2024-11-09 06:49:38,851 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 06:49:38,851 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:49:38,851 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:49:38,851 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:49:38,851 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:49:39,645 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 06:49:39,655 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:49:39,666 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:49:45,033 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '254762#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_272| Int) (|v_ULTIMATE.start_main_~x2~0#1_79| Int)) (and (<= |v_ULTIMATE.start_main_~x2~0#1_79| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_272|) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_272| |v_ULTIMATE.start_main_~x2~0#1_79|)))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:49:45,033 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:49:45,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:49:45,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 30 [2024-11-09 06:49:45,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657370646] [2024-11-09 06:49:45,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:49:45,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 06:49:45,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:49:45,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 06:49:45,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=2420, Unknown=0, NotChecked=0, Total=2756 [2024-11-09 06:49:45,036 INFO L87 Difference]: Start difference. First operand 18314 states and 19998 transitions. Second operand has 30 states, 30 states have (on average 13.7) internal successors, (411), 30 states have internal predecessors, (411), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-09 06:49:48,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:49:48,574 INFO L93 Difference]: Finished difference Result 24371 states and 26668 transitions. [2024-11-09 06:49:48,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 06:49:48,574 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 13.7) internal successors, (411), 30 states have internal predecessors, (411), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) Word has length 317 [2024-11-09 06:49:48,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:49:48,595 INFO L225 Difference]: With dead ends: 24371 [2024-11-09 06:49:48,595 INFO L226 Difference]: Without dead ends: 16569 [2024-11-09 06:49:48,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 977 GetRequests, 865 SyntacticMatches, 53 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3631 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=460, Invalid=3200, Unknown=0, NotChecked=0, Total=3660 [2024-11-09 06:49:48,606 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 29 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 1722 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 1724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:49:48,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 879 Invalid, 1724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1722 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 06:49:48,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16569 states. [2024-11-09 06:49:50,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16569 to 14051. [2024-11-09 06:49:50,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14051 states, 13202 states have (on average 1.0287835176488411) internal successors, (13582), 13205 states have internal predecessors, (13582), 842 states have call successors, (842), 3 states have call predecessors, (842), 3 states have return successors, (842), 842 states have call predecessors, (842), 842 states have call successors, (842) [2024-11-09 06:49:50,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14051 states to 14051 states and 15266 transitions. [2024-11-09 06:49:50,918 INFO L78 Accepts]: Start accepts. Automaton has 14051 states and 15266 transitions. Word has length 317 [2024-11-09 06:49:50,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:49:50,918 INFO L471 AbstractCegarLoop]: Abstraction has 14051 states and 15266 transitions. [2024-11-09 06:49:50,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 13.7) internal successors, (411), 30 states have internal predecessors, (411), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-09 06:49:50,919 INFO L276 IsEmpty]: Start isEmpty. Operand 14051 states and 15266 transitions. [2024-11-09 06:49:50,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-11-09 06:49:50,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:49:50,923 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 15, 15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:49:50,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-09 06:49:51,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:49:51,124 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:49:51,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:49:51,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1007892785, now seen corresponding path program 17 times [2024-11-09 06:49:51,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:49:51,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76551781] [2024-11-09 06:49:51,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:49:51,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:49:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:49:51,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2381 backedges. 599 proven. 1508 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-09 06:49:51,950 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:49:51,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76551781] [2024-11-09 06:49:51,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76551781] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:49:51,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040858500] [2024-11-09 06:49:51,950 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:49:51,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:49:51,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:49:51,952 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:49:51,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-09 06:49:52,128 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-09 06:49:52,128 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:49:52,130 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 06:49:52,136 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:49:53,116 INFO L134 CoverageAnalysis]: Checked inductivity of 2381 backedges. 0 proven. 1687 refuted. 0 times theorem prover too weak. 694 trivial. 0 not checked. [2024-11-09 06:49:53,117 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:49:53,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040858500] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:49:53,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1684749773] [2024-11-09 06:49:53,852 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 06:49:53,852 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:49:53,852 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:49:53,852 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:49:53,853 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:49:54,782 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 06:49:54,791 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:49:54,803 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:50:02,546 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '299044#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (exists ((|v_ULTIMATE.start_main_~x2~0#1_80| Int) (|v_ULTIMATE.start_main_~y1~0#1_280| Int)) (and (<= 0 |v_ULTIMATE.start_main_~y1~0#1_280|) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_280| |v_ULTIMATE.start_main_~x2~0#1_80|)) (<= |v_ULTIMATE.start_main_~x2~0#1_80| 2147483647))) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:50:02,547 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:50:02,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:50:02,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 13] total 32 [2024-11-09 06:50:02,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011221122] [2024-11-09 06:50:02,547 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 06:50:02,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-09 06:50:02,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:50:02,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-09 06:50:02,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=2998, Unknown=0, NotChecked=0, Total=3306 [2024-11-09 06:50:02,550 INFO L87 Difference]: Start difference. First operand 14051 states and 15266 transitions. Second operand has 32 states, 32 states have (on average 13.15625) internal successors, (421), 32 states have internal predecessors, (421), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-09 06:50:09,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:50:09,046 INFO L93 Difference]: Finished difference Result 19096 states and 20775 transitions. [2024-11-09 06:50:09,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-09 06:50:09,046 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 13.15625) internal successors, (421), 32 states have internal predecessors, (421), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) Word has length 317 [2024-11-09 06:50:09,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:50:09,065 INFO L225 Difference]: With dead ends: 19096 [2024-11-09 06:50:09,065 INFO L226 Difference]: Without dead ends: 16950 [2024-11-09 06:50:09,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 712 GetRequests, 592 SyntacticMatches, 17 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4207 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=923, Invalid=9997, Unknown=0, NotChecked=0, Total=10920 [2024-11-09 06:50:09,070 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 522 mSDsluCounter, 1927 mSDsCounter, 0 mSdLazyCounter, 5398 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 5444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 5398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:50:09,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 2095 Invalid, 5444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 5398 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-09 06:50:09,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16950 states. [2024-11-09 06:50:11,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16950 to 14915. [2024-11-09 06:50:11,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14915 states, 14011 states have (on average 1.0259082149739491) internal successors, (14374), 14014 states have internal predecessors, (14374), 897 states have call successors, (897), 3 states have call predecessors, (897), 3 states have return successors, (897), 897 states have call predecessors, (897), 897 states have call successors, (897) [2024-11-09 06:50:11,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14915 states to 14915 states and 16168 transitions. [2024-11-09 06:50:11,446 INFO L78 Accepts]: Start accepts. Automaton has 14915 states and 16168 transitions. Word has length 317 [2024-11-09 06:50:11,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:50:11,446 INFO L471 AbstractCegarLoop]: Abstraction has 14915 states and 16168 transitions. [2024-11-09 06:50:11,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 13.15625) internal successors, (421), 32 states have internal predecessors, (421), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-09 06:50:11,447 INFO L276 IsEmpty]: Start isEmpty. Operand 14915 states and 16168 transitions. [2024-11-09 06:50:11,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2024-11-09 06:50:11,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:50:11,452 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:50:11,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-11-09 06:50:11,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:50:11,653 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-09 06:50:11,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:50:11,653 INFO L85 PathProgramCache]: Analyzing trace with hash 310351201, now seen corresponding path program 18 times [2024-11-09 06:50:11,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:50:11,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599218900] [2024-11-09 06:50:11,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:50:11,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:50:11,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:50:11,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [319478179] [2024-11-09 06:50:11,715 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 06:50:11,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:50:11,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:50:11,720 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:50:11,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038eae2e-ecfe-4e71-80d8-6e6c06812e48/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-09 06:50:11,920 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 06:50:11,920 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:50:11,924 INFO L255 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 90 conjuncts are in the unsatisfiable core [2024-11-09 06:50:11,932 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:51:14,289 INFO L134 CoverageAnalysis]: Checked inductivity of 2630 backedges. 40 proven. 2337 refuted. 18 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:51:14,289 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:51:14,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:51:14,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599218900] [2024-11-09 06:51:14,836 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:51:14,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319478179] [2024-11-09 06:51:14,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319478179] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:51:14,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [304566358] [2024-11-09 06:51:14,837 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 06:51:14,837 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:51:14,838 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:51:14,838 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:51:14,838 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:51:15,760 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-09 06:51:15,770 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-09 06:51:15,782 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:51:24,873 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '338522#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~x2~0#1_81| Int) (|v_ULTIMATE.start_main_~y1~0#1_287| Int)) (and (<= 0 |v_ULTIMATE.start_main_~y1~0#1_287|) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_287| |v_ULTIMATE.start_main_~x2~0#1_81|)) (<= |v_ULTIMATE.start_main_~x2~0#1_81| 2147483647))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 06:51:24,874 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:51:24,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:51:24,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60] total 60 [2024-11-09 06:51:24,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977490621] [2024-11-09 06:51:24,874 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:51:24,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2024-11-09 06:51:24,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:51:24,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2024-11-09 06:51:24,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=6965, Unknown=21, NotChecked=0, Total=7482 [2024-11-09 06:51:24,878 INFO L87 Difference]: Start difference. First operand 14915 states and 16168 transitions. Second operand has 61 states, 57 states have (on average 4.894736842105263) internal successors, (279), 54 states have internal predecessors, (279), 20 states have call successors, (20), 1 states have call predecessors, (20), 3 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 06:51:31,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:51:33,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:51:35,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:51:42,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:51:43,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:51:45,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:51:54,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:51:56,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:51:57,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:51:59,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:52:02,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:52:03,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:52:05,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:52:07,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:52:09,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:52:11,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:52:13,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:52:15,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:52:17,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:52:19,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:52:22,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:52:33,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:52:35,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:52:37,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:52:39,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:52:41,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:52:43,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:52:51,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:52:53,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:52:55,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:52:57,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:52:59,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:53:01,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:53:03,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:53:05,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:53:07,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:53:09,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:53:11,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:53:13,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:53:16,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:53:18,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:53:20,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:53:22,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:24,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:26,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:28,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:30,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:38,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:40,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:42,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:44,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:45,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:47,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:49,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:51,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:53,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:55,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:57,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:59,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:54:01,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:54:03,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:54:05,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:54:07,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:54:09,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:54:11,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:54:19,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:54:21,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:54:23,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:54:25,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:54:27,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:54:29,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:54:31,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:54:39,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:54:41,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:54:43,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:54:45,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:54:47,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:54:50,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:54:52,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:54:54,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:54:56,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:54:58,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:55:00,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:55:02,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:55:04,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:55:07,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:55:09,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:55:11,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:55:13,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:55:15,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:55:17,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:55:19,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:55:21,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:55:23,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:55:25,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:55:27,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:55:29,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:55:41,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:55:43,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:55:45,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:55:47,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:55:49,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:55:51,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:55:53,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:55:55,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:55:57,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:55:59,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:01,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:03,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:05,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:07,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:09,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:11,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:13,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:15,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:18,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:20,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:22,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:24,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:26,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:28,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:34,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:36,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:39,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:41,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:43,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:45,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:47,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:49,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:51,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:53,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:05,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:07,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:09,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:11,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:13,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:15,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:17,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:19,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:21,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:23,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:25,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:27,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:29,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:31,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:33,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:35,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:37,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:39,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:41,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:43,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:56,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:58,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:00,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:02,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:04,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:06,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:08,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:10,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:12,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:14,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:16,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:18,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:20,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:22,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:24,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:32,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:34,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:36,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:38,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:40,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:48,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:51,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:53,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:55,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:57,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:59,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:01,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:03,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:10,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:12,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:59:14,675 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]