./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/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_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/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_ef07afea-db54-4ae3-9a67-a771fc2a5b01/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 881c8a19bc7d985c1c357993fa89c98038c14e3d30b81b5db0457e690440ac95 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:01:59,912 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:02:00,004 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 05:02:00,011 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:02:00,012 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:02:00,050 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:02:00,052 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:02:00,053 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:02:00,054 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:02:00,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:02:00,057 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:02:00,058 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:02:00,058 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:02:00,059 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:02:00,059 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:02:00,063 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:02:00,064 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:02:00,064 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:02:00,064 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:02:00,065 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:02:00,065 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:02:00,066 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:02:00,067 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:02:00,067 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:02:00,067 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:02:00,068 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:02:00,068 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:02:00,069 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:02:00,069 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:02:00,069 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:02:00,070 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:02:00,070 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:02:00,070 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 05:02:00,071 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:02:00,071 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:02:00,072 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:02:00,072 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:02:00,072 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:02:00,073 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:02:00,073 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:02:00,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:02:00,076 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:02:00,077 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:02:00,077 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:02:00,078 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:02:00,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:02:00,079 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:02:00,079 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:02:00,080 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:02:00,080 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_ef07afea-db54-4ae3-9a67-a771fc2a5b01/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 881c8a19bc7d985c1c357993fa89c98038c14e3d30b81b5db0457e690440ac95 [2024-11-09 05:02:00,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:02:00,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:02:00,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:02:00,413 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:02:00,413 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:02:00,415 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c Unable to find full path for "g++" [2024-11-09 05:02:02,415 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:02:02,667 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:02:02,668 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c [2024-11-09 05:02:02,678 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/data/9765d2fed/6c8d871528ab4526b26b9919e5b42fff/FLAG931b48632 [2024-11-09 05:02:02,703 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/data/9765d2fed/6c8d871528ab4526b26b9919e5b42fff [2024-11-09 05:02:02,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:02:02,713 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:02:02,715 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:02:02,716 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:02:02,725 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:02:02,728 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:02:02" (1/1) ... [2024-11-09 05:02:02,730 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f97182b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:02, skipping insertion in model container [2024-11-09 05:02:02,730 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:02:02" (1/1) ... [2024-11-09 05:02:02,763 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:02:03,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:02:03,085 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:02:03,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:02:03,147 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:02:03,148 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:03 WrapperNode [2024-11-09 05:02:03,148 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:02:03,149 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:02:03,150 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:02:03,150 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:02:03,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:03" (1/1) ... [2024-11-09 05:02:03,170 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:03" (1/1) ... [2024-11-09 05:02:03,195 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 91 [2024-11-09 05:02:03,196 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:02:03,200 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:02:03,201 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:02:03,201 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:02:03,213 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:03" (1/1) ... [2024-11-09 05:02:03,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:03" (1/1) ... [2024-11-09 05:02:03,215 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:03" (1/1) ... [2024-11-09 05:02:03,215 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:03" (1/1) ... [2024-11-09 05:02:03,223 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:03" (1/1) ... [2024-11-09 05:02:03,226 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:03" (1/1) ... [2024-11-09 05:02:03,228 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:03" (1/1) ... [2024-11-09 05:02:03,229 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:03" (1/1) ... [2024-11-09 05:02:03,231 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:02:03,232 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:02:03,233 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:02:03,233 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:02:03,234 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:03" (1/1) ... [2024-11-09 05:02:03,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:02:03,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:02:03,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:02:03,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:02:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:02:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:02:03,301 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:02:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:02:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:02:03,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:02:03,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 05:02:03,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 05:02:03,373 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:02:03,375 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:02:03,778 INFO L? ?]: Removed 63 outVars from TransFormulas that were not future-live. [2024-11-09 05:02:03,779 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:02:03,835 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:02:03,835 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 05:02:03,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:02:03 BoogieIcfgContainer [2024-11-09 05:02:03,836 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:02:03,838 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:02:03,839 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:02:03,842 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:02:03,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:02:02" (1/3) ... [2024-11-09 05:02:03,843 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9188b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:02:03, skipping insertion in model container [2024-11-09 05:02:03,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:03" (2/3) ... [2024-11-09 05:02:03,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9188b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:02:03, skipping insertion in model container [2024-11-09 05:02:03,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:02:03" (3/3) ... [2024-11-09 05:02:03,845 INFO L112 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound10.c [2024-11-09 05:02:03,861 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:02:03,862 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2024-11-09 05:02:03,934 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:02:03,942 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;@2a1a9a5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:02:03,942 INFO L334 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2024-11-09 05:02:03,947 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 40 states have (on average 1.85) internal successors, (74), 70 states have internal predecessors, (74), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 05:02:03,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 05:02:03,954 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:02:03,954 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:02:03,955 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:02:03,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:02:03,960 INFO L85 PathProgramCache]: Analyzing trace with hash 2139381359, now seen corresponding path program 1 times [2024-11-09 05:02:03,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:02:03,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792610941] [2024-11-09 05:02:03,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:03,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:02:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:02:04,135 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:02:04,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:02:04,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792610941] [2024-11-09 05:02:04,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792610941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:02:04,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:02:04,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:02:04,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229291516] [2024-11-09 05:02:04,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:02:04,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:02:04,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:02:04,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:02:04,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:02:04,172 INFO L87 Difference]: Start difference. First operand has 83 states, 40 states have (on average 1.85) internal successors, (74), 70 states have internal predecessors, (74), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 05:02:04,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:02:04,220 INFO L93 Difference]: Finished difference Result 158 states and 178 transitions. [2024-11-09 05:02:04,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:02:04,223 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 14 [2024-11-09 05:02:04,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:02:04,230 INFO L225 Difference]: With dead ends: 158 [2024-11-09 05:02:04,230 INFO L226 Difference]: Without dead ends: 80 [2024-11-09 05:02:04,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:02:04,252 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:02:04,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:02:04,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-09 05:02:04,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-11-09 05:02:04,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 39 states have (on average 1.794871794871795) internal successors, (70), 68 states have internal predecessors, (70), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 05:02:04,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2024-11-09 05:02:04,322 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 14 [2024-11-09 05:02:04,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:02:04,323 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2024-11-09 05:02:04,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 05:02:04,324 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2024-11-09 05:02:04,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 05:02:04,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:02:04,325 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:02:04,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:02:04,325 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:02:04,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:02:04,326 INFO L85 PathProgramCache]: Analyzing trace with hash 2139376689, now seen corresponding path program 1 times [2024-11-09 05:02:04,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:02:04,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814775167] [2024-11-09 05:02:04,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:04,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:02:04,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:02:04,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [798953868] [2024-11-09 05:02:04,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:04,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:02:04,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:02:04,361 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:02:04,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:02:04,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:02:04,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:02:04,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:02:04,476 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:02:04,476 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:02:04,477 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:02:04,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814775167] [2024-11-09 05:02:04,478 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:02:04,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798953868] [2024-11-09 05:02:04,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798953868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:02:04,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:02:04,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:02:04,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272963628] [2024-11-09 05:02:04,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:02:04,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:02:04,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:02:04,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:02:04,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:02:04,486 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 05:02:04,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:02:04,660 INFO L93 Difference]: Finished difference Result 104 states and 114 transitions. [2024-11-09 05:02:04,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:02:04,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 14 [2024-11-09 05:02:04,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:02:04,662 INFO L225 Difference]: With dead ends: 104 [2024-11-09 05:02:04,663 INFO L226 Difference]: Without dead ends: 102 [2024-11-09 05:02:04,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:02:04,665 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 18 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:02:04,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 146 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:02:04,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-09 05:02:04,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 83. [2024-11-09 05:02:04,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 42 states have (on average 1.7380952380952381) internal successors, (73), 71 states have internal predecessors, (73), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 05:02:04,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 91 transitions. [2024-11-09 05:02:04,678 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 91 transitions. Word has length 14 [2024-11-09 05:02:04,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:02:04,679 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 91 transitions. [2024-11-09 05:02:04,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 05:02:04,679 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 91 transitions. [2024-11-09 05:02:04,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 05:02:04,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:02:04,680 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:02:04,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:02:04,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:02:04,884 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:02:04,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:02:04,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1712720476, now seen corresponding path program 1 times [2024-11-09 05:02:04,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:02:04,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882207929] [2024-11-09 05:02:04,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:04,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:02:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:02:04,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [445198919] [2024-11-09 05:02:04,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:04,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:02:04,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:02:04,916 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:02:04,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:02:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:02:04,981 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:02:04,983 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:02:05,012 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:02:05,012 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:02:05,013 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:02:05,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882207929] [2024-11-09 05:02:05,013 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:02:05,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445198919] [2024-11-09 05:02:05,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445198919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:02:05,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:02:05,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:02:05,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936581287] [2024-11-09 05:02:05,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:02:05,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:02:05,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:02:05,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:02:05,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:02:05,017 INFO L87 Difference]: Start difference. First operand 83 states and 91 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:02:05,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:02:05,179 INFO L93 Difference]: Finished difference Result 140 states and 163 transitions. [2024-11-09 05:02:05,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:02:05,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 19 [2024-11-09 05:02:05,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:02:05,181 INFO L225 Difference]: With dead ends: 140 [2024-11-09 05:02:05,181 INFO L226 Difference]: Without dead ends: 134 [2024-11-09 05:02:05,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:02:05,183 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 45 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:02:05,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 121 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:02:05,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-09 05:02:05,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 114. [2024-11-09 05:02:05,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 67 states have (on average 1.7313432835820894) internal successors, (116), 96 states have internal predecessors, (116), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 05:02:05,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 146 transitions. [2024-11-09 05:02:05,208 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 146 transitions. Word has length 19 [2024-11-09 05:02:05,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:02:05,208 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 146 transitions. [2024-11-09 05:02:05,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:02:05,209 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 146 transitions. [2024-11-09 05:02:05,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 05:02:05,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:02:05,210 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:02:05,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 05:02:05,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:02:05,411 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:02:05,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:02:05,413 INFO L85 PathProgramCache]: Analyzing trace with hash -951901338, now seen corresponding path program 1 times [2024-11-09 05:02:05,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:02:05,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395710441] [2024-11-09 05:02:05,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:05,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:02:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:02:05,748 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:02:05,748 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:02:05,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395710441] [2024-11-09 05:02:05,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395710441] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:02:05,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954517596] [2024-11-09 05:02:05,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:05,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:02:05,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:02:05,751 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:02:05,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:02:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:02:05,798 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:02:05,800 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:02:05,918 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:02:05,919 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:02:05,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954517596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:02:05,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:02:05,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-09 05:02:05,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347199563] [2024-11-09 05:02:05,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:02:05,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:02:05,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:02:05,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:02:05,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:02:05,921 INFO L87 Difference]: Start difference. First operand 114 states and 146 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:02:06,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:02:06,153 INFO L93 Difference]: Finished difference Result 133 states and 153 transitions. [2024-11-09 05:02:06,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:02:06,155 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 21 [2024-11-09 05:02:06,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:02:06,157 INFO L225 Difference]: With dead ends: 133 [2024-11-09 05:02:06,157 INFO L226 Difference]: Without dead ends: 130 [2024-11-09 05:02:06,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:02:06,158 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 155 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:02:06,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 120 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:02:06,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-09 05:02:06,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 115. [2024-11-09 05:02:06,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 68 states have (on average 1.6911764705882353) internal successors, (115), 97 states have internal predecessors, (115), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 05:02:06,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 145 transitions. [2024-11-09 05:02:06,174 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 145 transitions. Word has length 21 [2024-11-09 05:02:06,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:02:06,175 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 145 transitions. [2024-11-09 05:02:06,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:02:06,175 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 145 transitions. [2024-11-09 05:02:06,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 05:02:06,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:02:06,176 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:02:06,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 05:02:06,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:02:06,377 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:02:06,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:02:06,378 INFO L85 PathProgramCache]: Analyzing trace with hash 555829652, now seen corresponding path program 1 times [2024-11-09 05:02:06,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:02:06,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716436727] [2024-11-09 05:02:06,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:06,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:02:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:02:06,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [716850275] [2024-11-09 05:02:06,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:06,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:02:06,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:02:06,405 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:02:06,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:02:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:02:06,496 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:02:06,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:02:06,639 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:02:06,639 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:02:06,639 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:02:06,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716436727] [2024-11-09 05:02:06,640 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:02:06,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716850275] [2024-11-09 05:02:06,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716850275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:02:06,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:02:06,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:02:06,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750764630] [2024-11-09 05:02:06,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:02:06,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:02:06,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:02:06,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:02:06,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:02:06,642 INFO L87 Difference]: Start difference. First operand 115 states and 145 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:02:06,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:02:06,852 INFO L93 Difference]: Finished difference Result 133 states and 150 transitions. [2024-11-09 05:02:06,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:02:06,852 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 22 [2024-11-09 05:02:06,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:02:06,854 INFO L225 Difference]: With dead ends: 133 [2024-11-09 05:02:06,854 INFO L226 Difference]: Without dead ends: 126 [2024-11-09 05:02:06,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:02:06,857 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 151 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:02:06,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 123 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:02:06,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-11-09 05:02:06,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 112. [2024-11-09 05:02:06,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 65 states have (on average 1.676923076923077) internal successors, (109), 94 states have internal predecessors, (109), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 05:02:06,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 139 transitions. [2024-11-09 05:02:06,891 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 139 transitions. Word has length 22 [2024-11-09 05:02:06,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:02:06,891 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 139 transitions. [2024-11-09 05:02:06,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:02:06,892 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 139 transitions. [2024-11-09 05:02:06,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 05:02:06,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:02:06,893 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:02:06,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 05:02:07,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:02:07,097 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:02:07,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:02:07,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1804965154, now seen corresponding path program 1 times [2024-11-09 05:02:07,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:02:07,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352228642] [2024-11-09 05:02:07,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:07,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:02:07,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:02:07,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [273876318] [2024-11-09 05:02:07,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:07,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:02:07,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:02:07,123 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:02:07,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 05:02:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:02:07,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:02:07,203 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:02:07,296 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:02:07,296 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:02:07,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:02:07,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352228642] [2024-11-09 05:02:07,297 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:02:07,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273876318] [2024-11-09 05:02:07,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273876318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:02:07,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:02:07,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:02:07,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023561316] [2024-11-09 05:02:07,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:02:07,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:02:07,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:02:07,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:02:07,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:02:07,300 INFO L87 Difference]: Start difference. First operand 112 states and 139 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:02:07,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:02:07,553 INFO L93 Difference]: Finished difference Result 179 states and 247 transitions. [2024-11-09 05:02:07,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:02:07,557 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 28 [2024-11-09 05:02:07,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:02:07,560 INFO L225 Difference]: With dead ends: 179 [2024-11-09 05:02:07,560 INFO L226 Difference]: Without dead ends: 174 [2024-11-09 05:02:07,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:02:07,562 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 74 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:02:07,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 83 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:02:07,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-09 05:02:07,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 158. [2024-11-09 05:02:07,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 103 states have (on average 1.6407766990291262) internal successors, (169), 132 states have internal predecessors, (169), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-09 05:02:07,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 215 transitions. [2024-11-09 05:02:07,607 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 215 transitions. Word has length 28 [2024-11-09 05:02:07,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:02:07,611 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 215 transitions. [2024-11-09 05:02:07,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:02:07,611 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 215 transitions. [2024-11-09 05:02:07,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 05:02:07,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:02:07,612 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:02:07,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 05:02:07,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 05:02:07,813 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:02:07,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:02:07,813 INFO L85 PathProgramCache]: Analyzing trace with hash 119345002, now seen corresponding path program 1 times [2024-11-09 05:02:07,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:02:07,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203377830] [2024-11-09 05:02:07,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:07,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:02:07,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:02:07,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [451087667] [2024-11-09 05:02:07,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:07,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:02:07,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:02:07,852 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:02:07,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 05:02:07,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:02:07,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:02:07,905 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:02:07,961 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:02:07,961 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:02:07,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:02:07,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203377830] [2024-11-09 05:02:07,962 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:02:07,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451087667] [2024-11-09 05:02:07,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451087667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:02:07,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:02:07,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:02:07,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929257824] [2024-11-09 05:02:07,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:02:07,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:02:07,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:02:07,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:02:07,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:02:07,965 INFO L87 Difference]: Start difference. First operand 158 states and 215 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:02:08,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:02:08,213 INFO L93 Difference]: Finished difference Result 177 states and 238 transitions. [2024-11-09 05:02:08,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:02:08,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 29 [2024-11-09 05:02:08,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:02:08,215 INFO L225 Difference]: With dead ends: 177 [2024-11-09 05:02:08,215 INFO L226 Difference]: Without dead ends: 174 [2024-11-09 05:02:08,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:02:08,216 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 73 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:02:08,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 83 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:02:08,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-09 05:02:08,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 159. [2024-11-09 05:02:08,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 104 states have (on average 1.5961538461538463) internal successors, (166), 133 states have internal predecessors, (166), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-09 05:02:08,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 212 transitions. [2024-11-09 05:02:08,248 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 212 transitions. Word has length 29 [2024-11-09 05:02:08,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:02:08,249 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 212 transitions. [2024-11-09 05:02:08,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:02:08,249 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 212 transitions. [2024-11-09 05:02:08,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-09 05:02:08,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:02:08,253 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:02:08,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 05:02:08,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:02:08,455 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:02:08,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:02:08,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1142858813, now seen corresponding path program 1 times [2024-11-09 05:02:08,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:02:08,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192538823] [2024-11-09 05:02:08,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:08,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:02:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:02:08,626 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-09 05:02:08,626 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:02:08,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192538823] [2024-11-09 05:02:08,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192538823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:02:08,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:02:08,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:02:08,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188539181] [2024-11-09 05:02:08,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:02:08,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:02:08,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:02:08,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:02:08,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:02:08,630 INFO L87 Difference]: Start difference. First operand 159 states and 212 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:02:09,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:02:09,291 INFO L93 Difference]: Finished difference Result 192 states and 241 transitions. [2024-11-09 05:02:09,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:02:09,291 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 43 [2024-11-09 05:02:09,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:02:09,293 INFO L225 Difference]: With dead ends: 192 [2024-11-09 05:02:09,293 INFO L226 Difference]: Without dead ends: 190 [2024-11-09 05:02:09,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:02:09,294 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 114 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:02:09,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 71 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 05:02:09,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-09 05:02:09,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 161. [2024-11-09 05:02:09,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 106 states have (on average 1.5660377358490567) internal successors, (166), 135 states have internal predecessors, (166), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-09 05:02:09,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 212 transitions. [2024-11-09 05:02:09,320 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 212 transitions. Word has length 43 [2024-11-09 05:02:09,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:02:09,321 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 212 transitions. [2024-11-09 05:02:09,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:02:09,321 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 212 transitions. [2024-11-09 05:02:09,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 05:02:09,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:02:09,324 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:02:09,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 05:02:09,325 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:02:09,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:02:09,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1068884744, now seen corresponding path program 1 times [2024-11-09 05:02:09,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:02:09,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964612708] [2024-11-09 05:02:09,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:09,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:02:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:02:09,471 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-09 05:02:09,472 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:02:09,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964612708] [2024-11-09 05:02:09,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964612708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:02:09,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:02:09,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:02:09,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620633947] [2024-11-09 05:02:09,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:02:09,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:02:09,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:02:09,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:02:09,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:02:09,475 INFO L87 Difference]: Start difference. First operand 161 states and 212 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:02:09,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:02:09,712 INFO L93 Difference]: Finished difference Result 192 states and 237 transitions. [2024-11-09 05:02:09,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:02:09,713 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 44 [2024-11-09 05:02:09,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:02:09,715 INFO L225 Difference]: With dead ends: 192 [2024-11-09 05:02:09,715 INFO L226 Difference]: Without dead ends: 190 [2024-11-09 05:02:09,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:02:09,717 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 111 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:02:09,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 73 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:02:09,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-09 05:02:09,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 163. [2024-11-09 05:02:09,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 108 states have (on average 1.537037037037037) internal successors, (166), 137 states have internal predecessors, (166), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-09 05:02:09,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 212 transitions. [2024-11-09 05:02:09,740 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 212 transitions. Word has length 44 [2024-11-09 05:02:09,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:02:09,742 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 212 transitions. [2024-11-09 05:02:09,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:02:09,743 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 212 transitions. [2024-11-09 05:02:09,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 05:02:09,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:02:09,744 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:02:09,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 05:02:09,745 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:02:09,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:02:09,746 INFO L85 PathProgramCache]: Analyzing trace with hash -701052208, now seen corresponding path program 1 times [2024-11-09 05:02:09,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:02:09,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143339679] [2024-11-09 05:02:09,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:09,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:02:09,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:02:09,855 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-09 05:02:09,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:02:09,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143339679] [2024-11-09 05:02:09,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143339679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:02:09,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:02:09,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:02:09,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153294721] [2024-11-09 05:02:09,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:02:09,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:02:09,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:02:09,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:02:09,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:02:09,858 INFO L87 Difference]: Start difference. First operand 163 states and 212 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:02:09,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:02:09,948 INFO L93 Difference]: Finished difference Result 168 states and 212 transitions. [2024-11-09 05:02:09,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:02:09,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 46 [2024-11-09 05:02:09,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:02:09,950 INFO L225 Difference]: With dead ends: 168 [2024-11-09 05:02:09,952 INFO L226 Difference]: Without dead ends: 167 [2024-11-09 05:02:09,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:02:09,954 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 13 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:02:09,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 129 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:02:09,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-09 05:02:09,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 163. [2024-11-09 05:02:09,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 108 states have (on average 1.5277777777777777) internal successors, (165), 137 states have internal predecessors, (165), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-09 05:02:09,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 211 transitions. [2024-11-09 05:02:09,979 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 211 transitions. Word has length 46 [2024-11-09 05:02:09,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:02:09,980 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 211 transitions. [2024-11-09 05:02:09,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:02:09,980 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 211 transitions. [2024-11-09 05:02:09,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 05:02:09,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:02:09,982 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:02:09,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 05:02:09,982 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:02:09,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:02:09,983 INFO L85 PathProgramCache]: Analyzing trace with hash -701052166, now seen corresponding path program 1 times [2024-11-09 05:02:09,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:02:09,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976657056] [2024-11-09 05:02:09,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:09,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:02:10,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:02:10,155 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 05:02:10,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:02:10,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976657056] [2024-11-09 05:02:10,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976657056] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:02:10,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098165678] [2024-11-09 05:02:10,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:10,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:02:10,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:02:10,158 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:02:10,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 05:02:10,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:02:10,219 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:02:10,221 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:02:10,359 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 05:02:10,359 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:02:10,482 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 05:02:10,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098165678] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:02:10,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [940299302] [2024-11-09 05:02:10,508 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2024-11-09 05:02:10,508 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:02:10,512 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:02:10,518 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:02:10,518 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:02:11,718 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 34 for LOIs [2024-11-09 05:02:11,723 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:02:11,725 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:02:12,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [940299302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:02:12,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:02:12,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [3, 3, 3] total 16 [2024-11-09 05:02:12,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152413009] [2024-11-09 05:02:12,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:02:12,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:02:12,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:02:12,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:02:12,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2024-11-09 05:02:12,953 INFO L87 Difference]: Start difference. First operand 163 states and 211 transitions. Second operand has 13 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-09 05:02:13,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:02:13,576 INFO L93 Difference]: Finished difference Result 168 states and 215 transitions. [2024-11-09 05:02:13,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 05:02:13,577 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 46 [2024-11-09 05:02:13,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:02:13,579 INFO L225 Difference]: With dead ends: 168 [2024-11-09 05:02:13,579 INFO L226 Difference]: Without dead ends: 165 [2024-11-09 05:02:13,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 109 SyntacticMatches, 15 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2024-11-09 05:02:13,580 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 196 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:02:13,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 66 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 05:02:13,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-09 05:02:13,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2024-11-09 05:02:13,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 111 states have (on average 1.4414414414414414) internal successors, (160), 138 states have internal predecessors, (160), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-09 05:02:13,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 206 transitions. [2024-11-09 05:02:13,605 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 206 transitions. Word has length 46 [2024-11-09 05:02:13,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:02:13,606 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 206 transitions. [2024-11-09 05:02:13,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-09 05:02:13,606 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 206 transitions. [2024-11-09 05:02:13,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-09 05:02:13,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:02:13,610 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:02:13,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 05:02:13,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 05:02:13,811 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:02:13,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:02:13,812 INFO L85 PathProgramCache]: Analyzing trace with hash 598697426, now seen corresponding path program 1 times [2024-11-09 05:02:13,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:02:13,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200113084] [2024-11-09 05:02:13,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:13,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:02:13,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:02:13,940 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-09 05:02:13,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:02:13,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200113084] [2024-11-09 05:02:13,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200113084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:02:13,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:02:13,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:02:13,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087484170] [2024-11-09 05:02:13,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:02:13,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:02:13,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:02:13,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:02:13,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:02:13,942 INFO L87 Difference]: Start difference. First operand 165 states and 206 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:02:14,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:02:14,220 INFO L93 Difference]: Finished difference Result 185 states and 218 transitions. [2024-11-09 05:02:14,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:02:14,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 48 [2024-11-09 05:02:14,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:02:14,223 INFO L225 Difference]: With dead ends: 185 [2024-11-09 05:02:14,223 INFO L226 Difference]: Without dead ends: 183 [2024-11-09 05:02:14,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:02:14,224 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 49 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:02:14,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 138 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:02:14,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-09 05:02:14,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2024-11-09 05:02:14,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 113 states have (on average 1.4336283185840708) internal successors, (162), 140 states have internal predecessors, (162), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-09 05:02:14,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 208 transitions. [2024-11-09 05:02:14,250 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 208 transitions. Word has length 48 [2024-11-09 05:02:14,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:02:14,250 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 208 transitions. [2024-11-09 05:02:14,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:02:14,251 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 208 transitions. [2024-11-09 05:02:14,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 05:02:14,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:02:14,255 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:02:14,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 05:02:14,256 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:02:14,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:02:14,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1789089111, now seen corresponding path program 1 times [2024-11-09 05:02:14,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:02:14,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516289119] [2024-11-09 05:02:14,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:14,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:02:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:02:14,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1480386795] [2024-11-09 05:02:14,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:14,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:02:14,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:02:14,284 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:02:14,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 05:02:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:02:14,348 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 05:02:14,350 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:02:14,714 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-09 05:02:14,715 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:02:15,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:02:15,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516289119] [2024-11-09 05:02:15,001 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:02:15,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480386795] [2024-11-09 05:02:15,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480386795] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:02:15,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [929790437] [2024-11-09 05:02:15,008 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2024-11-09 05:02:15,008 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:02:15,008 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:02:15,009 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:02:15,009 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:02:21,949 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:02:21,951 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:02:21,952 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:02:26,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [929790437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:02:26,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:02:26,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [7] total 22 [2024-11-09 05:02:26,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198634175] [2024-11-09 05:02:26,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:02:26,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 05:02:26,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:02:26,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 05:02:26,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=486, Unknown=0, NotChecked=0, Total=650 [2024-11-09 05:02:26,464 INFO L87 Difference]: Start difference. First operand 167 states and 208 transitions. Second operand has 17 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-09 05:02:27,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:02:27,840 INFO L93 Difference]: Finished difference Result 222 states and 270 transitions. [2024-11-09 05:02:27,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 05:02:27,841 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 56 [2024-11-09 05:02:27,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:02:27,843 INFO L225 Difference]: With dead ends: 222 [2024-11-09 05:02:27,843 INFO L226 Difference]: Without dead ends: 203 [2024-11-09 05:02:27,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 85 SyntacticMatches, 18 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=164, Invalid=486, Unknown=0, NotChecked=0, Total=650 [2024-11-09 05:02:27,845 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 154 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:02:27,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 64 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 05:02:27,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-11-09 05:02:27,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 190. [2024-11-09 05:02:27,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 131 states have (on average 1.381679389312977) internal successors, (181), 158 states have internal predecessors, (181), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-09 05:02:27,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 237 transitions. [2024-11-09 05:02:27,892 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 237 transitions. Word has length 56 [2024-11-09 05:02:27,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:02:27,894 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 237 transitions. [2024-11-09 05:02:27,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-09 05:02:27,895 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 237 transitions. [2024-11-09 05:02:27,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-09 05:02:27,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:02:27,897 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:02:27,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-09 05:02:28,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-09 05:02:28,098 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:02:28,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:02:28,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1613296994, now seen corresponding path program 1 times [2024-11-09 05:02:28,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:02:28,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459194232] [2024-11-09 05:02:28,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:28,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:02:28,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:02:28,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1306982481] [2024-11-09 05:02:28,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:28,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:02:28,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:02:28,123 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:02:28,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 05:02:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:02:28,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:02:28,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:02:28,622 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-09 05:02:28,622 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:02:28,721 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:02:28,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459194232] [2024-11-09 05:02:28,721 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:02:28,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306982481] [2024-11-09 05:02:28,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306982481] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:02:28,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [649081680] [2024-11-09 05:02:28,726 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2024-11-09 05:02:28,726 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:02:28,727 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:02:28,727 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:02:28,727 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:02:33,320 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:02:33,322 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:02:33,323 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:02:38,713 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6023#(exists ((|v_ULTIMATE.start_main_~a~0#1_52| Int) (|v_ULTIMATE.start_main_~y~0#1_73| Int)) (and (<= 2 |ULTIMATE.start_main_~x~0#1|) (<= 1 |#StackHeapBarrier|) (<= 0 (+ 4611686018427387904 (div |ULTIMATE.start_main_~b~0#1| 2))) (<= 1 |v_ULTIMATE.start_main_~y~0#1_73|) (<= 2 |ULTIMATE.start_main_~r~0#1|) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~y~0#1_73| |v_ULTIMATE.start_main_~a~0#1_52|)) 0) (<= |ULTIMATE.start_main_~x~0#1| 10) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |v_ULTIMATE.start_main_~y~0#1_73| 10) (= (mod |v_ULTIMATE.start_main_~a~0#1_52| 2) 0) (<= |ULTIMATE.start_main_~r~0#1| 10) (<= (div |ULTIMATE.start_main_~b~0#1| 2) 20) (= (mod |ULTIMATE.start_main_~b~0#1| 2) 0)))' at error location [2024-11-09 05:02:38,713 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:02:38,714 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:02:38,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-09 05:02:38,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562249979] [2024-11-09 05:02:38,714 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:02:38,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 05:02:38,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:02:38,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 05:02:38,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=975, Unknown=2, NotChecked=0, Total=1190 [2024-11-09 05:02:38,716 INFO L87 Difference]: Start difference. First operand 190 states and 237 transitions. Second operand has 9 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-09 05:02:39,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:02:39,279 INFO L93 Difference]: Finished difference Result 201 states and 258 transitions. [2024-11-09 05:02:39,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 05:02:39,280 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 58 [2024-11-09 05:02:39,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:02:39,282 INFO L225 Difference]: With dead ends: 201 [2024-11-09 05:02:39,282 INFO L226 Difference]: Without dead ends: 194 [2024-11-09 05:02:39,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 81 SyntacticMatches, 8 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=287, Invalid=1351, Unknown=2, NotChecked=0, Total=1640 [2024-11-09 05:02:39,284 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 214 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:02:39,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 145 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:02:39,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-09 05:02:39,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 183. [2024-11-09 05:02:39,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 131 states have (on average 1.282442748091603) internal successors, (168), 151 states have internal predecessors, (168), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-09 05:02:39,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 224 transitions. [2024-11-09 05:02:39,315 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 224 transitions. Word has length 58 [2024-11-09 05:02:39,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:02:39,316 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 224 transitions. [2024-11-09 05:02:39,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-09 05:02:39,316 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 224 transitions. [2024-11-09 05:02:39,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 05:02:39,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:02:39,317 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:02:39,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-09 05:02:39,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-09 05:02:39,522 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:02:39,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:02:39,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1527400814, now seen corresponding path program 1 times [2024-11-09 05:02:39,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:02:39,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144825789] [2024-11-09 05:02:39,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:39,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:02:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:02:39,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2025331084] [2024-11-09 05:02:39,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:39,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:02:39,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:02:39,550 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:02:39,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 05:02:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:02:39,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:02:39,614 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:02:39,921 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-09 05:02:39,922 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:02:40,223 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:02:40,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144825789] [2024-11-09 05:02:40,224 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:02:40,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025331084] [2024-11-09 05:02:40,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025331084] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:02:40,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1335328978] [2024-11-09 05:02:40,227 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2024-11-09 05:02:40,227 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:02:40,228 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:02:40,228 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:02:40,228 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:02:43,467 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:02:43,468 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:02:43,469 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:02:46,772 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6740#(exists ((|v_ULTIMATE.start_main_~a~0#1_60| Int) (|v_ULTIMATE.start_main_~y~0#1_74| Int)) (and (<= 2 |ULTIMATE.start_main_~x~0#1|) (<= 1 |#StackHeapBarrier|) (<= (div |v_ULTIMATE.start_main_~a~0#1_60| 2) 4611686018427387903) (<= (div (* (- 1) |ULTIMATE.start_main_~b~0#1|) 2) 4611686018427387904) (= (mod |v_ULTIMATE.start_main_~a~0#1_60| 2) 0) (<= 2 |ULTIMATE.start_main_~r~0#1|) (<= 0 (+ (div (* (- 1) |ULTIMATE.start_main_~b~0#1|) 2) 20)) (<= |ULTIMATE.start_main_~x~0#1| 10) (= |ULTIMATE.start_main_~q~0#1| 0) (<= 1 |v_ULTIMATE.start_main_~y~0#1_74|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_74| |v_ULTIMATE.start_main_~a~0#1_60|)) (<= |ULTIMATE.start_main_~r~0#1| 10) (<= |v_ULTIMATE.start_main_~y~0#1_74| 10) (= (mod |ULTIMATE.start_main_~b~0#1| 2) 0)))' at error location [2024-11-09 05:02:46,772 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:02:46,772 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:02:46,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-09 05:02:46,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808615734] [2024-11-09 05:02:46,773 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:02:46,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 05:02:46,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:02:46,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 05:02:46,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=982, Unknown=0, NotChecked=0, Total=1190 [2024-11-09 05:02:46,774 INFO L87 Difference]: Start difference. First operand 183 states and 224 transitions. Second operand has 9 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-09 05:02:47,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:02:47,487 INFO L93 Difference]: Finished difference Result 346 states and 464 transitions. [2024-11-09 05:02:47,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:02:47,488 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 59 [2024-11-09 05:02:47,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:02:47,490 INFO L225 Difference]: With dead ends: 346 [2024-11-09 05:02:47,490 INFO L226 Difference]: Without dead ends: 342 [2024-11-09 05:02:47,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 84 SyntacticMatches, 8 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=290, Invalid=1432, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 05:02:47,492 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 518 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:02:47,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 206 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:02:47,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-11-09 05:02:47,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 260. [2024-11-09 05:02:47,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 194 states have (on average 1.2989690721649485) internal successors, (252), 214 states have internal predecessors, (252), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-09 05:02:47,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 336 transitions. [2024-11-09 05:02:47,540 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 336 transitions. Word has length 59 [2024-11-09 05:02:47,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:02:47,541 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 336 transitions. [2024-11-09 05:02:47,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-09 05:02:47,541 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 336 transitions. [2024-11-09 05:02:47,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 05:02:47,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:02:47,542 INFO L215 NwaCegarLoop]: trace histogram [9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:02:47,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-09 05:02:47,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-09 05:02:47,747 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:02:47,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:02:47,747 INFO L85 PathProgramCache]: Analyzing trace with hash 122231412, now seen corresponding path program 1 times [2024-11-09 05:02:47,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:02:47,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295428102] [2024-11-09 05:02:47,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:47,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:02:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:02:47,889 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-09 05:02:47,889 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:02:47,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295428102] [2024-11-09 05:02:47,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295428102] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:02:47,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003904968] [2024-11-09 05:02:47,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:47,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:02:47,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:02:47,892 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:02:47,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 05:02:47,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:02:47,962 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:02:47,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:02:48,047 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-09 05:02:48,047 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:02:48,242 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-09 05:02:48,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003904968] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:02:48,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [866973457] [2024-11-09 05:02:48,245 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2024-11-09 05:02:48,246 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:02:48,246 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:02:48,246 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:02:48,247 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:02:51,079 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:02:51,081 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:02:51,082 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:02:53,661 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7969#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 10) (= |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~q~0#1| 0) (<= 1 |ULTIMATE.start_main_~r~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 10))' at error location [2024-11-09 05:02:53,661 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:02:53,661 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:02:53,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 10 [2024-11-09 05:02:53,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119738442] [2024-11-09 05:02:53,662 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:02:53,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:02:53,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:02:53,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:02:53,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=869, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 05:02:53,664 INFO L87 Difference]: Start difference. First operand 260 states and 336 transitions. Second operand has 11 states, 10 states have (on average 10.1) internal successors, (101), 11 states have internal predecessors, (101), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-09 05:02:54,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:02:54,587 INFO L93 Difference]: Finished difference Result 441 states and 558 transitions. [2024-11-09 05:02:54,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 05:02:54,587 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.1) internal successors, (101), 11 states have internal predecessors, (101), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) Word has length 74 [2024-11-09 05:02:54,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:02:54,589 INFO L225 Difference]: With dead ends: 441 [2024-11-09 05:02:54,590 INFO L226 Difference]: Without dead ends: 439 [2024-11-09 05:02:54,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 191 SyntacticMatches, 8 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 801 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=434, Invalid=1546, Unknown=0, NotChecked=0, Total=1980 [2024-11-09 05:02:54,591 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 712 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:02:54,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 340 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:02:54,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-09 05:02:54,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 315. [2024-11-09 05:02:54,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 239 states have (on average 1.3096234309623431) internal successors, (313), 258 states have internal predecessors, (313), 53 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-09 05:02:54,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 419 transitions. [2024-11-09 05:02:54,642 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 419 transitions. Word has length 74 [2024-11-09 05:02:54,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:02:54,643 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 419 transitions. [2024-11-09 05:02:54,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.1) internal successors, (101), 11 states have internal predecessors, (101), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-09 05:02:54,643 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 419 transitions. [2024-11-09 05:02:54,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 05:02:54,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:02:54,644 INFO L215 NwaCegarLoop]: trace histogram [9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:02:54,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-09 05:02:54,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:02:54,845 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:02:54,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:02:54,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1500272972, now seen corresponding path program 1 times [2024-11-09 05:02:54,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:02:54,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730123244] [2024-11-09 05:02:54,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:54,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:02:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:02:54,969 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-09 05:02:54,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:02:54,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730123244] [2024-11-09 05:02:54,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730123244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:02:54,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:02:54,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:02:54,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303837751] [2024-11-09 05:02:54,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:02:54,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:02:54,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:02:54,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:02:54,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:02:54,973 INFO L87 Difference]: Start difference. First operand 315 states and 419 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-09 05:02:55,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:02:55,089 INFO L93 Difference]: Finished difference Result 315 states and 419 transitions. [2024-11-09 05:02:55,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:02:55,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 76 [2024-11-09 05:02:55,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:02:55,091 INFO L225 Difference]: With dead ends: 315 [2024-11-09 05:02:55,092 INFO L226 Difference]: Without dead ends: 314 [2024-11-09 05:02:55,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:02:55,093 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 16 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:02:55,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 131 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:02:55,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-09 05:02:55,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 313. [2024-11-09 05:02:55,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 238 states have (on average 1.3025210084033614) internal successors, (310), 256 states have internal predecessors, (310), 53 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-09 05:02:55,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 416 transitions. [2024-11-09 05:02:55,157 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 416 transitions. Word has length 76 [2024-11-09 05:02:55,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:02:55,157 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 416 transitions. [2024-11-09 05:02:55,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-09 05:02:55,158 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 416 transitions. [2024-11-09 05:02:55,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 05:02:55,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:02:55,159 INFO L215 NwaCegarLoop]: trace histogram [9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:02:55,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 05:02:55,160 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:02:55,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:02:55,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1346681522, now seen corresponding path program 1 times [2024-11-09 05:02:55,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:02:55,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63193323] [2024-11-09 05:02:55,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:55,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:02:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:02:55,274 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-09 05:02:55,274 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:02:55,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63193323] [2024-11-09 05:02:55,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63193323] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:02:55,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653995047] [2024-11-09 05:02:55,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:55,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:02:55,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:02:55,277 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:02:55,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 05:02:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:02:55,334 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:02:55,335 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:02:55,498 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-09 05:02:55,498 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:02:55,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653995047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:02:55,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:02:55,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-09 05:02:55,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668322242] [2024-11-09 05:02:55,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:02:55,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:02:55,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:02:55,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:02:55,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:02:55,500 INFO L87 Difference]: Start difference. First operand 313 states and 416 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-09 05:02:55,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:02:55,915 INFO L93 Difference]: Finished difference Result 338 states and 460 transitions. [2024-11-09 05:02:55,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:02:55,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 78 [2024-11-09 05:02:55,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:02:55,918 INFO L225 Difference]: With dead ends: 338 [2024-11-09 05:02:55,918 INFO L226 Difference]: Without dead ends: 337 [2024-11-09 05:02:55,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:02:55,919 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 51 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:02:55,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 100 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:02:55,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-09 05:02:55,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 312. [2024-11-09 05:02:55,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 238 states have (on average 1.2899159663865547) internal successors, (307), 255 states have internal predecessors, (307), 53 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-09 05:02:55,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 413 transitions. [2024-11-09 05:02:55,964 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 413 transitions. Word has length 78 [2024-11-09 05:02:55,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:02:55,965 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 413 transitions. [2024-11-09 05:02:55,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-09 05:02:55,965 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 413 transitions. [2024-11-09 05:02:55,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-09 05:02:55,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:02:55,966 INFO L215 NwaCegarLoop]: trace histogram [9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:02:55,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-09 05:02:56,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 05:02:56,167 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:02:56,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:02:56,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1202545902, now seen corresponding path program 1 times [2024-11-09 05:02:56,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:02:56,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202087430] [2024-11-09 05:02:56,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:56,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:02:56,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:02:56,269 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-09 05:02:56,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:02:56,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202087430] [2024-11-09 05:02:56,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202087430] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:02:56,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256208868] [2024-11-09 05:02:56,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:56,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:02:56,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:02:56,272 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:02:56,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 05:02:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:02:56,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:02:56,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:02:56,492 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-09 05:02:56,492 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:02:56,619 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-09 05:02:56,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256208868] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:02:56,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [600328325] [2024-11-09 05:02:56,621 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:02:56,622 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:02:56,622 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:02:56,622 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:02:56,622 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:02:59,156 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:02:59,157 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:02:59,159 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:03:03,431 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11247#(and (exists ((|v_ULTIMATE.start_main_~a~0#1_78| Int) (|v_ULTIMATE.start_main_~q~0#1_54| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 10) (= |v_ULTIMATE.start_main_~q~0#1_54| 0) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 9223372036854775808 |v_ULTIMATE.start_main_~a~0#1_78|) (= (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|) |ULTIMATE.start_main_~x~0#1|))) (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~b~0#1|))' at error location [2024-11-09 05:03:03,431 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:03:03,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:03:03,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-09 05:03:03,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902395807] [2024-11-09 05:03:03,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:03:03,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:03:03,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:03:03,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:03:03,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=1154, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 05:03:03,435 INFO L87 Difference]: Start difference. First operand 312 states and 413 transitions. Second operand has 11 states, 10 states have (on average 12.7) internal successors, (127), 11 states have internal predecessors, (127), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-09 05:03:04,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:03:04,308 INFO L93 Difference]: Finished difference Result 611 states and 836 transitions. [2024-11-09 05:03:04,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:03:04,309 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.7) internal successors, (127), 11 states have internal predecessors, (127), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) Word has length 79 [2024-11-09 05:03:04,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:03:04,314 INFO L225 Difference]: With dead ends: 611 [2024-11-09 05:03:04,315 INFO L226 Difference]: Without dead ends: 609 [2024-11-09 05:03:04,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 194 SyntacticMatches, 9 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 817 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=325, Invalid=1481, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 05:03:04,318 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 282 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:03:04,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 239 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 05:03:04,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2024-11-09 05:03:04,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 471. [2024-11-09 05:03:04,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 370 states have (on average 1.2837837837837838) internal successors, (475), 387 states have internal predecessors, (475), 80 states have call successors, (80), 3 states have call predecessors, (80), 3 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-09 05:03:04,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 635 transitions. [2024-11-09 05:03:04,458 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 635 transitions. Word has length 79 [2024-11-09 05:03:04,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:03:04,458 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 635 transitions. [2024-11-09 05:03:04,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.7) internal successors, (127), 11 states have internal predecessors, (127), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-09 05:03:04,459 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 635 transitions. [2024-11-09 05:03:04,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-09 05:03:04,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:03:04,461 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:03:04,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-09 05:03:04,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:03:04,662 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:03:04,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:03:04,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1413434917, now seen corresponding path program 1 times [2024-11-09 05:03:04,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:03:04,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816405842] [2024-11-09 05:03:04,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:03:04,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:03:04,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:03:04,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1232851770] [2024-11-09 05:03:04,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:03:04,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:03:04,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:03:04,705 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:03:04,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 05:03:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:03:04,816 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:03:04,819 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:03:05,802 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-09 05:03:05,802 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:03:06,006 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:03:06,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816405842] [2024-11-09 05:03:06,006 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:03:06,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232851770] [2024-11-09 05:03:06,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232851770] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:03:06,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1625614628] [2024-11-09 05:03:06,009 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:03:06,010 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:03:06,010 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:03:06,011 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:03:06,011 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:03:20,578 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:03:20,580 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:03:20,581 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:03:25,824 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12927#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= 0 (+ |ULTIMATE.start_main_~b~0#1| 4611686018427387901)) (<= |ULTIMATE.start_main_~r~0#1| 4611686018427387902) (exists ((|v_ULTIMATE.start_main_~y~0#1_75| Int) (|v_ULTIMATE.start_main_~q~0#1_62| Int)) (and (= |ULTIMATE.start_main_~b~0#1| (* |v_ULTIMATE.start_main_~y~0#1_75| |ULTIMATE.start_main_~a~0#1|)) (<= |v_ULTIMATE.start_main_~y~0#1_75| 10) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_62| |v_ULTIMATE.start_main_~y~0#1_75|)) 0) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_62| 9223372036854775808)) (<= 1 |v_ULTIMATE.start_main_~y~0#1_75|))) (<= 0 (+ 4611686018427387902 |ULTIMATE.start_main_~r~0#1|)))' at error location [2024-11-09 05:03:25,824 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:03:25,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:03:25,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 05:03:25,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161618630] [2024-11-09 05:03:25,825 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:03:25,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:03:25,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:03:25,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:03:25,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=2048, Unknown=0, NotChecked=0, Total=2352 [2024-11-09 05:03:25,828 INFO L87 Difference]: Start difference. First operand 471 states and 635 transitions. Second operand has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-09 05:03:27,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:03:27,178 INFO L93 Difference]: Finished difference Result 759 states and 1055 transitions. [2024-11-09 05:03:27,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 05:03:27,179 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 86 [2024-11-09 05:03:27,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:03:27,183 INFO L225 Difference]: With dead ends: 759 [2024-11-09 05:03:27,183 INFO L226 Difference]: Without dead ends: 756 [2024-11-09 05:03:27,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 126 SyntacticMatches, 13 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1582 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=369, Invalid=2601, Unknown=0, NotChecked=0, Total=2970 [2024-11-09 05:03:27,186 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 235 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:03:27,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 248 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 05:03:27,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2024-11-09 05:03:27,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 702. [2024-11-09 05:03:27,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 560 states have (on average 1.2910714285714286) internal successors, (723), 577 states have internal predecessors, (723), 121 states have call successors, (121), 3 states have call predecessors, (121), 3 states have return successors, (121), 121 states have call predecessors, (121), 121 states have call successors, (121) [2024-11-09 05:03:27,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 965 transitions. [2024-11-09 05:03:27,330 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 965 transitions. Word has length 86 [2024-11-09 05:03:27,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:03:27,331 INFO L471 AbstractCegarLoop]: Abstraction has 702 states and 965 transitions. [2024-11-09 05:03:27,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-09 05:03:27,331 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 965 transitions. [2024-11-09 05:03:27,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 05:03:27,332 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:03:27,333 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:03:27,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-09 05:03:27,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:03:27,534 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:03:27,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:03:27,535 INFO L85 PathProgramCache]: Analyzing trace with hash 866809521, now seen corresponding path program 1 times [2024-11-09 05:03:27,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:03:27,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464035963] [2024-11-09 05:03:27,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:03:27,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:03:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:03:27,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1350175592] [2024-11-09 05:03:27,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:03:27,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:03:27,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:03:27,579 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:03:27,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 05:03:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:03:27,665 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:03:27,668 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:03:28,485 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-09 05:03:28,485 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:03:29,229 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:03:29,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464035963] [2024-11-09 05:03:29,229 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:03:29,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350175592] [2024-11-09 05:03:29,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350175592] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:03:29,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [569062384] [2024-11-09 05:03:29,232 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:03:29,233 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:03:29,233 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:03:29,233 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:03:29,233 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:03:43,169 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:03:43,171 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:03:43,172 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:03:48,932 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '15088#(exists ((|v_ULTIMATE.start_main_~y~0#1_76| Int) (|v_ULTIMATE.start_main_~q~0#1_70| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_70| |v_ULTIMATE.start_main_~y~0#1_76|)) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= 1 |v_ULTIMATE.start_main_~y~0#1_76|) (<= |v_ULTIMATE.start_main_~y~0#1_76| 10)))' at error location [2024-11-09 05:03:48,932 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:03:48,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:03:48,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 05:03:48,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790645008] [2024-11-09 05:03:48,933 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:03:48,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:03:48,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:03:48,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:03:48,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=332, Invalid=2020, Unknown=0, NotChecked=0, Total=2352 [2024-11-09 05:03:48,937 INFO L87 Difference]: Start difference. First operand 702 states and 965 transitions. Second operand has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 10 states have internal predecessors, (51), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-09 05:03:49,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:03:49,871 INFO L93 Difference]: Finished difference Result 789 states and 1080 transitions. [2024-11-09 05:03:49,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:03:49,871 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 10 states have internal predecessors, (51), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 87 [2024-11-09 05:03:49,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:03:49,876 INFO L225 Difference]: With dead ends: 789 [2024-11-09 05:03:49,877 INFO L226 Difference]: Without dead ends: 786 [2024-11-09 05:03:49,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 129 SyntacticMatches, 13 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1521 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=342, Invalid=2108, Unknown=0, NotChecked=0, Total=2450 [2024-11-09 05:03:49,880 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 124 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:03:49,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 227 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:03:49,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2024-11-09 05:03:50,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 769. [2024-11-09 05:03:50,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 615 states have (on average 1.2861788617886178) internal successors, (791), 632 states have internal predecessors, (791), 133 states have call successors, (133), 3 states have call predecessors, (133), 3 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2024-11-09 05:03:50,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 1057 transitions. [2024-11-09 05:03:50,052 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 1057 transitions. Word has length 87 [2024-11-09 05:03:50,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:03:50,053 INFO L471 AbstractCegarLoop]: Abstraction has 769 states and 1057 transitions. [2024-11-09 05:03:50,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 10 states have internal predecessors, (51), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-09 05:03:50,053 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 1057 transitions. [2024-11-09 05:03:50,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-09 05:03:50,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:03:50,055 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:03:50,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-09 05:03:50,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-09 05:03:50,256 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:03:50,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:03:50,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1101291431, now seen corresponding path program 1 times [2024-11-09 05:03:50,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:03:50,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515224384] [2024-11-09 05:03:50,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:03:50,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:03:50,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:03:50,515 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-09 05:03:50,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:03:50,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515224384] [2024-11-09 05:03:50,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515224384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:03:50,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:03:50,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:03:50,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821209166] [2024-11-09 05:03:50,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:03:50,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:03:50,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:03:50,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:03:50,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:03:50,518 INFO L87 Difference]: Start difference. First operand 769 states and 1057 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-09 05:03:51,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:03:51,916 INFO L93 Difference]: Finished difference Result 772 states and 1057 transitions. [2024-11-09 05:03:51,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 05:03:51,916 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 88 [2024-11-09 05:03:51,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:03:51,921 INFO L225 Difference]: With dead ends: 772 [2024-11-09 05:03:51,921 INFO L226 Difference]: Without dead ends: 769 [2024-11-09 05:03:51,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-11-09 05:03:51,923 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 86 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:03:51,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 174 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 05:03:51,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2024-11-09 05:03:52,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 766. [2024-11-09 05:03:52,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 615 states have (on average 1.2373983739837398) internal successors, (761), 629 states have internal predecessors, (761), 133 states have call successors, (133), 3 states have call predecessors, (133), 3 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2024-11-09 05:03:52,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1027 transitions. [2024-11-09 05:03:52,113 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1027 transitions. Word has length 88 [2024-11-09 05:03:52,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:03:52,113 INFO L471 AbstractCegarLoop]: Abstraction has 766 states and 1027 transitions. [2024-11-09 05:03:52,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-09 05:03:52,114 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1027 transitions. [2024-11-09 05:03:52,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-09 05:03:52,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:03:52,116 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:03:52,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 05:03:52,116 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:03:52,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:03:52,117 INFO L85 PathProgramCache]: Analyzing trace with hash -219703949, now seen corresponding path program 1 times [2024-11-09 05:03:52,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:03:52,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139363114] [2024-11-09 05:03:52,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:03:52,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:03:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:03:52,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2093367076] [2024-11-09 05:03:52,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:03:52,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:03:52,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:03:52,158 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:03:52,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 05:03:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:03:52,245 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 05:03:52,248 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:03:52,949 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 9 proven. 23 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-09 05:03:52,950 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:03:53,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:03:53,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139363114] [2024-11-09 05:03:53,018 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:03:53,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093367076] [2024-11-09 05:03:53,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093367076] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:03:53,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2052699329] [2024-11-09 05:03:53,021 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:03:53,021 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:03:53,022 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:03:53,022 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:03:53,022 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:04:06,532 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:04:06,533 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:04:06,534 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:04:12,726 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '19254#(exists ((|v_ULTIMATE.start_main_~y~0#1_79| Int) (|v_ULTIMATE.start_main_~r~0#1_68| Int) (|v_ULTIMATE.start_main_~q~0#1_77| Int)) (and (<= 1 |v_ULTIMATE.start_main_~y~0#1_79|) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= (* |v_ULTIMATE.start_main_~q~0#1_77| |v_ULTIMATE.start_main_~y~0#1_79|) 9223372036854775807) (<= |v_ULTIMATE.start_main_~y~0#1_79| 10) (<= 9223372036854775808 (+ |v_ULTIMATE.start_main_~r~0#1_68| (* |v_ULTIMATE.start_main_~q~0#1_77| |v_ULTIMATE.start_main_~y~0#1_79|)))))' at error location [2024-11-09 05:04:12,727 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:04:12,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:04:12,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 05:04:12,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267774155] [2024-11-09 05:04:12,727 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:04:12,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:04:12,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:04:12,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:04:12,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=2067, Unknown=0, NotChecked=0, Total=2352 [2024-11-09 05:04:12,730 INFO L87 Difference]: Start difference. First operand 766 states and 1027 transitions. Second operand has 11 states, 8 states have (on average 6.75) internal successors, (54), 11 states have internal predecessors, (54), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-09 05:04:14,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:04:14,257 INFO L93 Difference]: Finished difference Result 784 states and 1037 transitions. [2024-11-09 05:04:14,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:04:14,258 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 6.75) internal successors, (54), 11 states have internal predecessors, (54), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 89 [2024-11-09 05:04:14,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:04:14,261 INFO L225 Difference]: With dead ends: 784 [2024-11-09 05:04:14,261 INFO L226 Difference]: Without dead ends: 777 [2024-11-09 05:04:14,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 122 SyntacticMatches, 13 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1458 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=330, Invalid=2750, Unknown=0, NotChecked=0, Total=3080 [2024-11-09 05:04:14,264 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 168 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:04:14,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 373 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 05:04:14,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-11-09 05:04:14,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 764. [2024-11-09 05:04:14,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 613 states have (on average 1.2267536704730833) internal successors, (752), 627 states have internal predecessors, (752), 133 states have call successors, (133), 3 states have call predecessors, (133), 3 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2024-11-09 05:04:14,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 1018 transitions. [2024-11-09 05:04:14,432 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 1018 transitions. Word has length 89 [2024-11-09 05:04:14,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:04:14,433 INFO L471 AbstractCegarLoop]: Abstraction has 764 states and 1018 transitions. [2024-11-09 05:04:14,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 6.75) internal successors, (54), 11 states have internal predecessors, (54), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-09 05:04:14,433 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 1018 transitions. [2024-11-09 05:04:14,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-09 05:04:14,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:04:14,435 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:04:14,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-09 05:04:14,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-09 05:04:14,640 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:04:14,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:04:14,641 INFO L85 PathProgramCache]: Analyzing trace with hash -482794382, now seen corresponding path program 2 times [2024-11-09 05:04:14,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:04:14,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392994447] [2024-11-09 05:04:14,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:04:14,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:04:14,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:04:14,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [97727876] [2024-11-09 05:04:14,669 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:04:14,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:04:14,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:04:14,671 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:04:14,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 05:04:14,737 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 05:04:14,737 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:04:14,738 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 05:04:14,741 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:04:15,143 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 13 proven. 11 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-09 05:04:15,143 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:04:15,366 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:04:15,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392994447] [2024-11-09 05:04:15,367 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:04:15,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97727876] [2024-11-09 05:04:15,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97727876] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:04:15,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1200140559] [2024-11-09 05:04:15,369 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2024-11-09 05:04:15,370 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:04:15,370 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:04:15,370 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:04:15,371 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:04:18,096 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:04:18,097 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:04:18,098 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:04:25,631 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21513#(exists ((|v_ULTIMATE.start_main_~y~0#1_82| Int) (|v_ULTIMATE.start_main_~a~0#1_152| Int)) (and (<= 2 |ULTIMATE.start_main_~x~0#1|) (<= 1 |#StackHeapBarrier|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_152| |v_ULTIMATE.start_main_~y~0#1_82|)) (<= (div (* (- 1) |ULTIMATE.start_main_~b~0#1|) 2) 4611686018427387904) (<= 2 |ULTIMATE.start_main_~r~0#1|) (<= 0 (+ (div (* (- 1) |ULTIMATE.start_main_~b~0#1|) 2) 20)) (<= 1 |v_ULTIMATE.start_main_~y~0#1_82|) (<= |v_ULTIMATE.start_main_~y~0#1_82| 10) (<= |ULTIMATE.start_main_~x~0#1| 10) (= |ULTIMATE.start_main_~q~0#1| 0) (<= 0 (+ (div (* (- 1) |v_ULTIMATE.start_main_~a~0#1_152|) 2) 4611686018427387903)) (<= |ULTIMATE.start_main_~r~0#1| 10) (= (mod |ULTIMATE.start_main_~b~0#1| 2) 0) (= (mod |v_ULTIMATE.start_main_~a~0#1_152| 2) 0)))' at error location [2024-11-09 05:04:25,631 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:04:25,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:04:25,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-09 05:04:25,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200013300] [2024-11-09 05:04:25,632 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:04:25,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:04:25,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:04:25,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:04:25,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=1014, Unknown=2, NotChecked=0, Total=1260 [2024-11-09 05:04:25,635 INFO L87 Difference]: Start difference. First operand 764 states and 1018 transitions. Second operand has 10 states, 7 states have (on average 6.142857142857143) internal successors, (43), 9 states have internal predecessors, (43), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-09 05:04:26,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:04:26,757 INFO L93 Difference]: Finished difference Result 786 states and 1045 transitions. [2024-11-09 05:04:26,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 05:04:26,757 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 6.142857142857143) internal successors, (43), 9 states have internal predecessors, (43), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 89 [2024-11-09 05:04:26,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:04:26,760 INFO L225 Difference]: With dead ends: 786 [2024-11-09 05:04:26,760 INFO L226 Difference]: Without dead ends: 782 [2024-11-09 05:04:26,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 141 SyntacticMatches, 10 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=326, Invalid=1312, Unknown=2, NotChecked=0, Total=1640 [2024-11-09 05:04:26,762 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 199 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:04:26,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 171 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:04:26,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2024-11-09 05:04:26,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 757. [2024-11-09 05:04:26,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 607 states have (on average 1.2191103789126854) internal successors, (740), 621 states have internal predecessors, (740), 132 states have call successors, (132), 3 states have call predecessors, (132), 3 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2024-11-09 05:04:26,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 1004 transitions. [2024-11-09 05:04:26,948 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 1004 transitions. Word has length 89 [2024-11-09 05:04:26,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:04:26,949 INFO L471 AbstractCegarLoop]: Abstraction has 757 states and 1004 transitions. [2024-11-09 05:04:26,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 6.142857142857143) internal successors, (43), 9 states have internal predecessors, (43), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-09 05:04:26,950 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 1004 transitions. [2024-11-09 05:04:26,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-09 05:04:26,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:04:26,952 INFO L215 NwaCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:04:26,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-09 05:04:27,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-09 05:04:27,152 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:04:27,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:04:27,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1857597447, now seen corresponding path program 1 times [2024-11-09 05:04:27,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:04:27,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940965954] [2024-11-09 05:04:27,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:04:27,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:04:27,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:04:27,327 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-09 05:04:27,328 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:04:27,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940965954] [2024-11-09 05:04:27,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940965954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:04:27,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:04:27,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:04:27,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077116069] [2024-11-09 05:04:27,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:04:27,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:04:27,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:04:27,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:04:27,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:04:27,331 INFO L87 Difference]: Start difference. First operand 757 states and 1004 transitions. Second operand has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 05:04:27,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:04:27,971 INFO L93 Difference]: Finished difference Result 757 states and 1004 transitions. [2024-11-09 05:04:27,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:04:27,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2024-11-09 05:04:27,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:04:27,977 INFO L225 Difference]: With dead ends: 757 [2024-11-09 05:04:27,978 INFO L226 Difference]: Without dead ends: 755 [2024-11-09 05:04:27,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:04:27,979 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 14 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:04:27,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 51 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:04:27,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2024-11-09 05:04:28,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 755. [2024-11-09 05:04:28,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 607 states have (on average 1.186161449752883) internal successors, (720), 619 states have internal predecessors, (720), 132 states have call successors, (132), 3 states have call predecessors, (132), 3 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2024-11-09 05:04:28,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 984 transitions. [2024-11-09 05:04:28,166 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 984 transitions. Word has length 101 [2024-11-09 05:04:28,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:04:28,167 INFO L471 AbstractCegarLoop]: Abstraction has 755 states and 984 transitions. [2024-11-09 05:04:28,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 05:04:28,167 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 984 transitions. [2024-11-09 05:04:28,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 05:04:28,169 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:04:28,169 INFO L215 NwaCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:04:28,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 05:04:28,170 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:04:28,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:04:28,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1555245911, now seen corresponding path program 1 times [2024-11-09 05:04:28,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:04:28,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941271852] [2024-11-09 05:04:28,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:04:28,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:04:28,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:04:28,247 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-09 05:04:28,247 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:04:28,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941271852] [2024-11-09 05:04:28,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941271852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:04:28,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:04:28,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:04:28,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115767579] [2024-11-09 05:04:28,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:04:28,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:04:28,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:04:28,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:04:28,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:04:28,252 INFO L87 Difference]: Start difference. First operand 755 states and 984 transitions. Second operand has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 05:04:28,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:04:28,781 INFO L93 Difference]: Finished difference Result 755 states and 984 transitions. [2024-11-09 05:04:28,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:04:28,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 103 [2024-11-09 05:04:28,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:04:28,785 INFO L225 Difference]: With dead ends: 755 [2024-11-09 05:04:28,785 INFO L226 Difference]: Without dead ends: 749 [2024-11-09 05:04:28,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:04:28,787 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 8 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:04:28,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 57 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:04:28,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2024-11-09 05:04:28,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 684. [2024-11-09 05:04:28,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 550 states have (on average 1.1472727272727272) internal successors, (631), 560 states have internal predecessors, (631), 120 states have call successors, (120), 3 states have call predecessors, (120), 3 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-09 05:04:28,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 871 transitions. [2024-11-09 05:04:28,988 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 871 transitions. Word has length 103 [2024-11-09 05:04:28,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:04:28,989 INFO L471 AbstractCegarLoop]: Abstraction has 684 states and 871 transitions. [2024-11-09 05:04:28,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 05:04:28,990 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 871 transitions. [2024-11-09 05:04:28,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-09 05:04:28,994 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:04:28,994 INFO L215 NwaCegarLoop]: trace histogram [14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:04:28,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-09 05:04:28,995 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:04:28,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:04:28,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1276923743, now seen corresponding path program 2 times [2024-11-09 05:04:28,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:04:28,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166376697] [2024-11-09 05:04:28,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:04:29,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:04:29,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:04:29,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [6711906] [2024-11-09 05:04:29,062 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:04:29,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:04:29,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:04:29,069 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:04:29,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-09 05:04:29,264 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 05:04:29,265 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:04:29,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 05:04:29,269 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:04:29,936 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2024-11-09 05:04:29,937 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:04:30,639 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:04:30,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166376697] [2024-11-09 05:04:30,640 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:04:30,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6711906] [2024-11-09 05:04:30,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6711906] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:04:30,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1480414460] [2024-11-09 05:04:30,643 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:04:30,643 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:04:30,643 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:04:30,643 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:04:30,644 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:04:45,433 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:04:45,434 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:04:45,435 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:04:53,215 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '27507#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= 0 (+ |ULTIMATE.start_main_~b~0#1| 4611686018427387901)) (<= |ULTIMATE.start_main_~r~0#1| 4611686018427387902) (<= 0 (+ 4611686018427387902 |ULTIMATE.start_main_~r~0#1|)) (exists ((|v_ULTIMATE.start_main_~q~0#1_85| Int) (|v_ULTIMATE.start_main_~y~0#1_85| Int)) (and (<= |v_ULTIMATE.start_main_~y~0#1_85| 10) (= |ULTIMATE.start_main_~b~0#1| (* |v_ULTIMATE.start_main_~y~0#1_85| |ULTIMATE.start_main_~a~0#1|)) (<= 1 |v_ULTIMATE.start_main_~y~0#1_85|) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_85| 9223372036854775808)) (<= (+ (* |v_ULTIMATE.start_main_~q~0#1_85| |v_ULTIMATE.start_main_~y~0#1_85|) 9223372036854775809) 0))))' at error location [2024-11-09 05:04:53,216 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:04:53,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:04:53,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-09 05:04:53,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062078998] [2024-11-09 05:04:53,216 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:04:53,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:04:53,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:04:53,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:04:53,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=2273, Unknown=0, NotChecked=0, Total=2550 [2024-11-09 05:04:53,219 INFO L87 Difference]: Start difference. First operand 684 states and 871 transitions. Second operand has 10 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-09 05:04:54,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:04:54,195 INFO L93 Difference]: Finished difference Result 698 states and 886 transitions. [2024-11-09 05:04:54,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 05:04:54,196 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 116 [2024-11-09 05:04:54,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:04:54,198 INFO L225 Difference]: With dead ends: 698 [2024-11-09 05:04:54,199 INFO L226 Difference]: Without dead ends: 694 [2024-11-09 05:04:54,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 179 SyntacticMatches, 18 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1640 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=380, Invalid=3160, Unknown=0, NotChecked=0, Total=3540 [2024-11-09 05:04:54,201 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 194 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:04:54,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 140 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:04:54,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2024-11-09 05:04:54,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 450. [2024-11-09 05:04:54,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 360 states have (on average 1.1055555555555556) internal successors, (398), 367 states have internal predecessors, (398), 79 states have call successors, (79), 3 states have call predecessors, (79), 3 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-09 05:04:54,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 556 transitions. [2024-11-09 05:04:54,340 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 556 transitions. Word has length 116 [2024-11-09 05:04:54,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:04:54,341 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 556 transitions. [2024-11-09 05:04:54,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-09 05:04:54,341 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 556 transitions. [2024-11-09 05:04:54,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-09 05:04:54,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:04:54,343 INFO L215 NwaCegarLoop]: trace histogram [14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:04:54,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-09 05:04:54,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:04:54,544 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:04:54,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:04:54,544 INFO L85 PathProgramCache]: Analyzing trace with hash -929930315, now seen corresponding path program 2 times [2024-11-09 05:04:54,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:04:54,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978651943] [2024-11-09 05:04:54,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:04:54,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:04:54,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:04:54,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [957606770] [2024-11-09 05:04:54,586 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:04:54,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:04:54,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:04:54,591 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:04:54,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 05:04:54,706 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 05:04:54,706 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:04:54,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:04:54,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:04:54,965 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-09 05:04:54,965 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:04:55,500 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-09 05:04:55,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:04:55,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978651943] [2024-11-09 05:04:55,501 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:04:55,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957606770] [2024-11-09 05:04:55,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957606770] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:04:55,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [814671271] [2024-11-09 05:04:55,505 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:04:55,505 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:04:55,506 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:04:55,506 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:04:55,506 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:05:07,985 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:05:07,986 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:05:07,987 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:05:13,268 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '29687#(exists ((|v_ULTIMATE.start_main_~y~0#1_86| Int) (|v_ULTIMATE.start_main_~q~0#1_94| Int)) (and (<= 1 |#StackHeapBarrier|) (<= |v_ULTIMATE.start_main_~y~0#1_86| 10) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_94| |v_ULTIMATE.start_main_~y~0#1_86|)) (<= 1 |v_ULTIMATE.start_main_~y~0#1_86|)))' at error location [2024-11-09 05:05:13,268 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:05:13,268 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:05:13,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2024-11-09 05:05:13,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493463798] [2024-11-09 05:05:13,269 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:05:13,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:05:13,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:05:13,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:05:13,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=266, Invalid=1456, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 05:05:13,271 INFO L87 Difference]: Start difference. First operand 450 states and 556 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-09 05:05:14,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:05:14,467 INFO L93 Difference]: Finished difference Result 465 states and 574 transitions. [2024-11-09 05:05:14,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:05:14,467 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 117 [2024-11-09 05:05:14,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:05:14,469 INFO L225 Difference]: With dead ends: 465 [2024-11-09 05:05:14,469 INFO L226 Difference]: Without dead ends: 464 [2024-11-09 05:05:14,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 290 SyntacticMatches, 19 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1340 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=278, Invalid=1614, Unknown=0, NotChecked=0, Total=1892 [2024-11-09 05:05:14,471 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 46 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:05:14,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 121 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 05:05:14,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-11-09 05:05:14,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 460. [2024-11-09 05:05:14,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 369 states have (on average 1.100271002710027) internal successors, (406), 376 states have internal predecessors, (406), 80 states have call successors, (80), 3 states have call predecessors, (80), 3 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-09 05:05:14,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 566 transitions. [2024-11-09 05:05:14,608 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 566 transitions. Word has length 117 [2024-11-09 05:05:14,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:05:14,610 INFO L471 AbstractCegarLoop]: Abstraction has 460 states and 566 transitions. [2024-11-09 05:05:14,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-09 05:05:14,611 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 566 transitions. [2024-11-09 05:05:14,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-09 05:05:14,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:05:14,612 INFO L215 NwaCegarLoop]: trace histogram [14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:05:14,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-09 05:05:14,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-09 05:05:14,814 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:05:14,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:05:14,814 INFO L85 PathProgramCache]: Analyzing trace with hash -309833353, now seen corresponding path program 2 times [2024-11-09 05:05:14,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:05:14,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660997225] [2024-11-09 05:05:14,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:05:14,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:05:14,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:05:14,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1692419657] [2024-11-09 05:05:14,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:05:14,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:05:14,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:05:14,872 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:05:14,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-09 05:05:14,951 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 05:05:14,951 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:05:14,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 05:05:14,956 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:05:15,503 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2024-11-09 05:05:15,503 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:05:16,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:05:16,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660997225] [2024-11-09 05:05:16,701 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:05:16,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692419657] [2024-11-09 05:05:16,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692419657] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:05:16,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [712846591] [2024-11-09 05:05:16,704 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:05:16,704 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:05:16,704 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:05:16,704 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:05:16,705 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:05:30,341 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:05:30,342 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:05:30,343 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:05:36,868 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '31303#(exists ((|v_ULTIMATE.start_main_~r~0#1_91| Int) (|v_ULTIMATE.start_main_~y~0#1_89| Int) (|v_ULTIMATE.start_main_~q~0#1_102| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 1 |v_ULTIMATE.start_main_~y~0#1_89|) (<= (* |v_ULTIMATE.start_main_~q~0#1_102| |v_ULTIMATE.start_main_~y~0#1_89|) 9223372036854775807) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= |v_ULTIMATE.start_main_~y~0#1_89| 10) (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~q~0#1_102| |v_ULTIMATE.start_main_~y~0#1_89|) |v_ULTIMATE.start_main_~r~0#1_91|))))' at error location [2024-11-09 05:05:36,868 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:05:36,869 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:05:36,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 05:05:36,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174454863] [2024-11-09 05:05:36,869 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:05:36,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:05:36,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:05:36,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:05:36,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=400, Invalid=2570, Unknown=0, NotChecked=0, Total=2970 [2024-11-09 05:05:36,872 INFO L87 Difference]: Start difference. First operand 460 states and 566 transitions. Second operand has 11 states, 8 states have (on average 5.75) internal successors, (46), 10 states have internal predecessors, (46), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-09 05:05:37,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:05:37,416 INFO L93 Difference]: Finished difference Result 580 states and 720 transitions. [2024-11-09 05:05:37,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:05:37,417 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 5.75) internal successors, (46), 10 states have internal predecessors, (46), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 119 [2024-11-09 05:05:37,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:05:37,420 INFO L225 Difference]: With dead ends: 580 [2024-11-09 05:05:37,420 INFO L226 Difference]: Without dead ends: 579 [2024-11-09 05:05:37,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 184 SyntacticMatches, 18 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2064 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=411, Invalid=2669, Unknown=0, NotChecked=0, Total=3080 [2024-11-09 05:05:37,423 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 102 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:05:37,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 146 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:05:37,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-09 05:05:37,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 462. [2024-11-09 05:05:37,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 371 states have (on average 1.0970350404312668) internal successors, (407), 378 states have internal predecessors, (407), 80 states have call successors, (80), 3 states have call predecessors, (80), 3 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-09 05:05:37,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 567 transitions. [2024-11-09 05:05:37,516 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 567 transitions. Word has length 119 [2024-11-09 05:05:37,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:05:37,516 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 567 transitions. [2024-11-09 05:05:37,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 5.75) internal successors, (46), 10 states have internal predecessors, (46), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-09 05:05:37,517 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 567 transitions. [2024-11-09 05:05:37,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-09 05:05:37,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:05:37,518 INFO L215 NwaCegarLoop]: trace histogram [15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:05:37,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-09 05:05:37,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:05:37,719 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:05:37,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:05:37,719 INFO L85 PathProgramCache]: Analyzing trace with hash -148211402, now seen corresponding path program 3 times [2024-11-09 05:05:37,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:05:37,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331599907] [2024-11-09 05:05:37,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:05:37,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:05:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:05:37,836 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2024-11-09 05:05:37,836 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:05:37,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331599907] [2024-11-09 05:05:37,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331599907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:05:37,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:05:37,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:05:37,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676278846] [2024-11-09 05:05:37,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:05:37,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:05:37,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:05:37,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:05:37,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:05:37,839 INFO L87 Difference]: Start difference. First operand 462 states and 567 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-09 05:05:38,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:05:38,386 INFO L93 Difference]: Finished difference Result 701 states and 866 transitions. [2024-11-09 05:05:38,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:05:38,387 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 124 [2024-11-09 05:05:38,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:05:38,390 INFO L225 Difference]: With dead ends: 701 [2024-11-09 05:05:38,390 INFO L226 Difference]: Without dead ends: 430 [2024-11-09 05:05:38,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:05:38,392 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 22 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:05:38,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 122 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:05:38,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-11-09 05:05:38,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 413. [2024-11-09 05:05:38,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 331 states have (on average 1.1027190332326284) internal successors, (365), 338 states have internal predecessors, (365), 71 states have call successors, (71), 3 states have call predecessors, (71), 3 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-09 05:05:38,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 507 transitions. [2024-11-09 05:05:38,518 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 507 transitions. Word has length 124 [2024-11-09 05:05:38,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:05:38,518 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 507 transitions. [2024-11-09 05:05:38,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-09 05:05:38,519 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 507 transitions. [2024-11-09 05:05:38,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-09 05:05:38,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:05:38,520 INFO L215 NwaCegarLoop]: trace histogram [15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:05:38,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-09 05:05:38,521 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:05:38,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:05:38,521 INFO L85 PathProgramCache]: Analyzing trace with hash 122198638, now seen corresponding path program 4 times [2024-11-09 05:05:38,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:05:38,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871687649] [2024-11-09 05:05:38,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:05:38,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:05:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:05:38,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [394201901] [2024-11-09 05:05:38,560 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 05:05:38,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:05:38,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:05:38,565 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:05:38,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-09 05:05:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:05:38,657 INFO L255 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 05:05:38,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:05:39,703 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 1 proven. 66 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2024-11-09 05:05:39,703 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:05:40,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:05:40,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871687649] [2024-11-09 05:05:40,358 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:05:40,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394201901] [2024-11-09 05:05:40,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394201901] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:05:40,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1638655321] [2024-11-09 05:05:40,360 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:05:40,360 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:05:40,361 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:05:40,361 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:05:40,361 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:05:52,798 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:05:52,800 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:05:52,801 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:05:58,601 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '34454#(exists ((|v_ULTIMATE.start_main_~y~0#1_90| Int) (|v_ULTIMATE.start_main_~q~0#1_111| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_111| |v_ULTIMATE.start_main_~y~0#1_90|)) (<= 1 |#StackHeapBarrier|) (<= |v_ULTIMATE.start_main_~y~0#1_90| 10) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= 1 |v_ULTIMATE.start_main_~y~0#1_90|)))' at error location [2024-11-09 05:05:58,601 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:05:58,601 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:05:58,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-09 05:05:58,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882740755] [2024-11-09 05:05:58,601 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:05:58,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:05:58,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:05:58,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:05:58,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=346, Invalid=2204, Unknown=0, NotChecked=0, Total=2550 [2024-11-09 05:05:58,604 INFO L87 Difference]: Start difference. First operand 413 states and 507 transitions. Second operand has 13 states, 11 states have (on average 6.636363636363637) internal successors, (73), 12 states have internal predecessors, (73), 8 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-09 05:05:59,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:05:59,559 INFO L93 Difference]: Finished difference Result 497 states and 613 transitions. [2024-11-09 05:05:59,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 05:05:59,559 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.636363636363637) internal successors, (73), 12 states have internal predecessors, (73), 8 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) Word has length 124 [2024-11-09 05:05:59,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:05:59,563 INFO L225 Difference]: With dead ends: 497 [2024-11-09 05:05:59,563 INFO L226 Difference]: Without dead ends: 496 [2024-11-09 05:05:59,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 194 SyntacticMatches, 20 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2195 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=370, Invalid=2492, Unknown=0, NotChecked=0, Total=2862 [2024-11-09 05:05:59,566 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 149 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:05:59,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 255 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:05:59,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-11-09 05:05:59,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 423. [2024-11-09 05:05:59,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 340 states have (on average 1.1) internal successors, (374), 347 states have internal predecessors, (374), 72 states have call successors, (72), 3 states have call predecessors, (72), 3 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-09 05:05:59,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 518 transitions. [2024-11-09 05:05:59,673 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 518 transitions. Word has length 124 [2024-11-09 05:05:59,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:05:59,674 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 518 transitions. [2024-11-09 05:05:59,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.636363636363637) internal successors, (73), 12 states have internal predecessors, (73), 8 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-09 05:05:59,674 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 518 transitions. [2024-11-09 05:05:59,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-09 05:05:59,675 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:05:59,676 INFO L215 NwaCegarLoop]: trace histogram [15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:05:59,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-09 05:05:59,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:05:59,880 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:05:59,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:05:59,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1468775920, now seen corresponding path program 3 times [2024-11-09 05:05:59,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:05:59,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692110677] [2024-11-09 05:05:59,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:05:59,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:05:59,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:05:59,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1713777097] [2024-11-09 05:05:59,919 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:05:59,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:05:59,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:05:59,922 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:05:59,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-09 05:06:00,042 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:06:00,042 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:06:00,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 05:06:00,048 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:06:01,251 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2024-11-09 05:06:01,251 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:06:03,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:06:03,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692110677] [2024-11-09 05:06:03,953 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:06:03,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713777097] [2024-11-09 05:06:03,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713777097] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:06:03,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1173174066] [2024-11-09 05:06:03,955 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:06:03,955 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:06:03,956 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:06:03,956 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:06:03,956 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:06:19,437 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:06:19,439 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:06:19,441 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:06:26,605 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '36333#(exists ((|v_ULTIMATE.start_main_~y~0#1_91| Int) (|v_ULTIMATE.start_main_~q~0#1_121| Int) (|v_ULTIMATE.start_main_~r~0#1_108| Int)) (and (<= 1 |#StackHeapBarrier|) (<= |v_ULTIMATE.start_main_~y~0#1_91| 10) (<= 1 |v_ULTIMATE.start_main_~y~0#1_91|) (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~q~0#1_121| |v_ULTIMATE.start_main_~y~0#1_91|) |v_ULTIMATE.start_main_~r~0#1_108|)) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= (* |v_ULTIMATE.start_main_~q~0#1_121| |v_ULTIMATE.start_main_~y~0#1_91|) 9223372036854775807)))' at error location [2024-11-09 05:06:26,605 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:06:26,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:06:26,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-09 05:06:26,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695203089] [2024-11-09 05:06:26,605 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:06:26,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:06:26,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:06:26,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:06:26,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=326, Invalid=2753, Unknown=1, NotChecked=0, Total=3080 [2024-11-09 05:06:26,608 INFO L87 Difference]: Start difference. First operand 423 states and 518 transitions. Second operand has 13 states, 11 states have (on average 6.818181818181818) internal successors, (75), 13 states have internal predecessors, (75), 8 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 7 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-09 05:06:27,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:06:27,840 INFO L93 Difference]: Finished difference Result 495 states and 609 transitions. [2024-11-09 05:06:27,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 05:06:27,840 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.818181818181818) internal successors, (75), 13 states have internal predecessors, (75), 8 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 7 states have call predecessors, (18), 8 states have call successors, (18) Word has length 126 [2024-11-09 05:06:27,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:06:27,842 INFO L225 Difference]: With dead ends: 495 [2024-11-09 05:06:27,843 INFO L226 Difference]: Without dead ends: 482 [2024-11-09 05:06:27,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 278 SyntacticMatches, 21 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2361 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=390, Invalid=3769, Unknown=1, NotChecked=0, Total=4160 [2024-11-09 05:06:27,845 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 210 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 1002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:06:27,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 349 Invalid, 1002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:06:27,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-09 05:06:27,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 413. [2024-11-09 05:06:27,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 331 states have (on average 1.0996978851963746) internal successors, (364), 338 states have internal predecessors, (364), 71 states have call successors, (71), 3 states have call predecessors, (71), 3 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-09 05:06:27,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 506 transitions. [2024-11-09 05:06:27,974 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 506 transitions. Word has length 126 [2024-11-09 05:06:27,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:06:27,975 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 506 transitions. [2024-11-09 05:06:27,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.818181818181818) internal successors, (75), 13 states have internal predecessors, (75), 8 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 7 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-09 05:06:27,975 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 506 transitions. [2024-11-09 05:06:27,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-09 05:06:27,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:06:27,977 INFO L215 NwaCegarLoop]: trace histogram [19, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:06:28,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-09 05:06:28,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:06:28,178 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:06:28,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:06:28,179 INFO L85 PathProgramCache]: Analyzing trace with hash 921509554, now seen corresponding path program 5 times [2024-11-09 05:06:28,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:06:28,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800556192] [2024-11-09 05:06:28,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:06:28,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:06:28,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:06:28,367 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 74 proven. 39 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2024-11-09 05:06:28,367 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:06:28,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800556192] [2024-11-09 05:06:28,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800556192] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:06:28,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438876486] [2024-11-09 05:06:28,368 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:06:28,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:06:28,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:06:28,370 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:06:28,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-09 05:06:28,549 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-09 05:06:28,549 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:06:28,550 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 05:06:28,554 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:06:29,928 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 41 proven. 99 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2024-11-09 05:06:29,928 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:06:31,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438876486] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:06:31,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1155214683] [2024-11-09 05:06:31,663 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:06:31,664 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:06:31,664 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:06:31,665 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:06:31,665 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:06:44,583 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:06:44,584 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:06:44,585 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:06:56,572 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '38041#(exists ((|v_ULTIMATE.start_main_~q~0#1_130| Int) (|v_ULTIMATE.start_main_~y~0#1_94| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 1 |v_ULTIMATE.start_main_~y~0#1_94|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_130| |v_ULTIMATE.start_main_~y~0#1_94|)) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= |v_ULTIMATE.start_main_~y~0#1_94| 10)))' at error location [2024-11-09 05:06:56,572 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:06:56,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:06:56,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12] total 18 [2024-11-09 05:06:56,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857258158] [2024-11-09 05:06:56,573 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:06:56,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 05:06:56,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:06:56,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 05:06:56,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=353, Invalid=3069, Unknown=0, NotChecked=0, Total=3422 [2024-11-09 05:06:56,577 INFO L87 Difference]: Start difference. First operand 413 states and 506 transitions. Second operand has 18 states, 16 states have (on average 10.1875) internal successors, (163), 18 states have internal predecessors, (163), 11 states have call successors, (37), 1 states have call predecessors, (37), 3 states have return successors, (39), 11 states have call predecessors, (39), 11 states have call successors, (39) [2024-11-09 05:06:58,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:07:00,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:07:10,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:07:10,409 INFO L93 Difference]: Finished difference Result 595 states and 733 transitions. [2024-11-09 05:07:10,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-09 05:07:10,410 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 10.1875) internal successors, (163), 18 states have internal predecessors, (163), 11 states have call successors, (37), 1 states have call predecessors, (37), 3 states have return successors, (39), 11 states have call predecessors, (39), 11 states have call successors, (39) Word has length 154 [2024-11-09 05:07:10,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:07:10,412 INFO L225 Difference]: With dead ends: 595 [2024-11-09 05:07:10,412 INFO L226 Difference]: Without dead ends: 350 [2024-11-09 05:07:10,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 254 SyntacticMatches, 25 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4712 ImplicationChecksByTransitivity, 20.3s TimeCoverageRelationStatistics Valid=1072, Invalid=9434, Unknown=0, NotChecked=0, Total=10506 [2024-11-09 05:07:10,416 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 536 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 1254 mSolverCounterSat, 141 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 1254 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:07:10,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 411 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 1254 Invalid, 3 Unknown, 0 Unchecked, 7.4s Time] [2024-11-09 05:07:10,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-09 05:07:10,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 330. [2024-11-09 05:07:10,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 263 states have (on average 1.102661596958175) internal successors, (290), 269 states have internal predecessors, (290), 57 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-09 05:07:10,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 404 transitions. [2024-11-09 05:07:10,513 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 404 transitions. Word has length 154 [2024-11-09 05:07:10,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:07:10,514 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 404 transitions. [2024-11-09 05:07:10,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 10.1875) internal successors, (163), 18 states have internal predecessors, (163), 11 states have call successors, (37), 1 states have call predecessors, (37), 3 states have return successors, (39), 11 states have call predecessors, (39), 11 states have call successors, (39) [2024-11-09 05:07:10,514 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 404 transitions. [2024-11-09 05:07:10,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-09 05:07:10,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:07:10,516 INFO L215 NwaCegarLoop]: trace histogram [19, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:07:10,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-09 05:07:10,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:07:10,717 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:07:10,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:07:10,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1321536404, now seen corresponding path program 4 times [2024-11-09 05:07:10,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:07:10,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203317004] [2024-11-09 05:07:10,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:07:10,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:07:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:07:11,423 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2024-11-09 05:07:11,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:07:11,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203317004] [2024-11-09 05:07:11,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203317004] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:07:11,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777431680] [2024-11-09 05:07:11,424 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 05:07:11,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:07:11,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:07:11,429 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:07:11,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-09 05:07:11,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:07:11,532 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 05:07:11,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:07:12,447 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 8 proven. 111 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2024-11-09 05:07:12,447 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:07:12,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777431680] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:07:12,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1490300060] [2024-11-09 05:07:12,816 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:07:12,816 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:07:12,816 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:07:12,816 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:07:12,816 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:07:26,190 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:07:26,191 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:07:26,192 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:07:34,797 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '39823#(exists ((|v_ULTIMATE.start_main_~r~0#1_125| Int) (|v_ULTIMATE.start_main_~q~0#1_136| Int) (|v_ULTIMATE.start_main_~y~0#1_95| Int)) (and (<= 1 |#StackHeapBarrier|) (<= (* |v_ULTIMATE.start_main_~q~0#1_136| |v_ULTIMATE.start_main_~y~0#1_95|) 9223372036854775807) (<= |v_ULTIMATE.start_main_~y~0#1_95| 10) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~q~0#1_136| |v_ULTIMATE.start_main_~y~0#1_95|) |v_ULTIMATE.start_main_~r~0#1_125|)) (<= 1 |v_ULTIMATE.start_main_~y~0#1_95|)))' at error location [2024-11-09 05:07:34,798 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:07:34,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:07:34,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 22 [2024-11-09 05:07:34,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039221719] [2024-11-09 05:07:34,798 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:07:34,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 05:07:34,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:07:34,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 05:07:34,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=339, Invalid=3321, Unknown=0, NotChecked=0, Total=3660 [2024-11-09 05:07:34,801 INFO L87 Difference]: Start difference. First operand 330 states and 404 transitions. Second operand has 23 states, 21 states have (on average 8.619047619047619) internal successors, (181), 23 states have internal predecessors, (181), 17 states have call successors, (41), 1 states have call predecessors, (41), 2 states have return successors, (41), 16 states have call predecessors, (41), 17 states have call successors, (41) [2024-11-09 05:07:37,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:07:37,164 INFO L93 Difference]: Finished difference Result 417 states and 514 transitions. [2024-11-09 05:07:37,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 05:07:37,165 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 8.619047619047619) internal successors, (181), 23 states have internal predecessors, (181), 17 states have call successors, (41), 1 states have call predecessors, (41), 2 states have return successors, (41), 16 states have call predecessors, (41), 17 states have call successors, (41) Word has length 156 [2024-11-09 05:07:37,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:07:37,166 INFO L225 Difference]: With dead ends: 417 [2024-11-09 05:07:37,166 INFO L226 Difference]: Without dead ends: 404 [2024-11-09 05:07:37,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 245 SyntacticMatches, 25 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3417 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=482, Invalid=5068, Unknown=0, NotChecked=0, Total=5550 [2024-11-09 05:07:37,168 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 410 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 1617 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 1706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:07:37,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 671 Invalid, 1706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1617 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 05:07:37,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-11-09 05:07:37,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 326. [2024-11-09 05:07:37,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 259 states have (on average 1.1003861003861004) internal successors, (285), 265 states have internal predecessors, (285), 57 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-09 05:07:37,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 399 transitions. [2024-11-09 05:07:37,244 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 399 transitions. Word has length 156 [2024-11-09 05:07:37,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:07:37,245 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 399 transitions. [2024-11-09 05:07:37,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 8.619047619047619) internal successors, (181), 23 states have internal predecessors, (181), 17 states have call successors, (41), 1 states have call predecessors, (41), 2 states have return successors, (41), 16 states have call predecessors, (41), 17 states have call successors, (41) [2024-11-09 05:07:37,245 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 399 transitions. [2024-11-09 05:07:37,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-09 05:07:37,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:07:37,247 INFO L215 NwaCegarLoop]: trace histogram [19, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:07:37,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-09 05:07:37,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-09 05:07:37,451 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:07:37,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:07:37,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1584626837, now seen corresponding path program 1 times [2024-11-09 05:07:37,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:07:37,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014351663] [2024-11-09 05:07:37,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:07:37,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:07:37,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:07:37,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [819090357] [2024-11-09 05:07:37,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:07:37,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:07:37,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:07:37,495 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:07:37,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-09 05:07:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:07:37,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 05:07:37,613 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:07:38,424 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2024-11-09 05:07:38,424 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:07:38,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:07:38,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014351663] [2024-11-09 05:07:38,702 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:07:38,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819090357] [2024-11-09 05:07:38,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819090357] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:07:38,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1442297812] [2024-11-09 05:07:38,704 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:07:38,704 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:07:38,705 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:07:38,705 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:07:38,705 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:07:53,074 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:07:53,076 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:07:53,077 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:07:59,491 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '41315#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 10) (exists ((|v_ULTIMATE.start_main_~a~0#1_331| Int) (|v_ULTIMATE.start_main_~y~0#1_96| Int)) (and (<= |v_ULTIMATE.start_main_~y~0#1_96| 10) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_331| |v_ULTIMATE.start_main_~y~0#1_96|)) (<= 1 |v_ULTIMATE.start_main_~y~0#1_96|))) (<= 1 |ULTIMATE.start_main_~r~0#1|))' at error location [2024-11-09 05:07:59,491 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:07:59,491 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:07:59,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-09 05:07:59,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20860248] [2024-11-09 05:07:59,491 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:07:59,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:07:59,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:07:59,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:07:59,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=2357, Unknown=0, NotChecked=0, Total=2652 [2024-11-09 05:07:59,493 INFO L87 Difference]: Start difference. First operand 326 states and 399 transitions. Second operand has 13 states, 11 states have (on average 8.454545454545455) internal successors, (93), 13 states have internal predecessors, (93), 9 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 8 states have call predecessors, (22), 9 states have call successors, (22) [2024-11-09 05:08:00,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:08:00,972 INFO L93 Difference]: Finished difference Result 533 states and 656 transitions. [2024-11-09 05:08:00,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 05:08:00,973 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 8.454545454545455) internal successors, (93), 13 states have internal predecessors, (93), 9 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 8 states have call predecessors, (22), 9 states have call successors, (22) Word has length 156 [2024-11-09 05:08:00,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:08:00,974 INFO L225 Difference]: With dead ends: 533 [2024-11-09 05:08:00,974 INFO L226 Difference]: Without dead ends: 371 [2024-11-09 05:08:00,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 245 SyntacticMatches, 24 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2486 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=404, Invalid=3628, Unknown=0, NotChecked=0, Total=4032 [2024-11-09 05:08:00,976 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 265 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:08:00,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 444 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 05:08:00,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-11-09 05:08:01,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 329. [2024-11-09 05:08:01,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 262 states have (on average 1.0916030534351144) internal successors, (286), 268 states have internal predecessors, (286), 57 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-09 05:08:01,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 400 transitions. [2024-11-09 05:08:01,061 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 400 transitions. Word has length 156 [2024-11-09 05:08:01,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:08:01,062 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 400 transitions. [2024-11-09 05:08:01,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 8.454545454545455) internal successors, (93), 13 states have internal predecessors, (93), 9 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 8 states have call predecessors, (22), 9 states have call successors, (22) [2024-11-09 05:08:01,062 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 400 transitions. [2024-11-09 05:08:01,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-09 05:08:01,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:08:01,064 INFO L215 NwaCegarLoop]: trace histogram [22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:08:01,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-09 05:08:01,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-09 05:08:01,266 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:08:01,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:08:01,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1209178019, now seen corresponding path program 1 times [2024-11-09 05:08:01,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:08:01,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773352011] [2024-11-09 05:08:01,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:08:01,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:08:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:08:01,692 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2024-11-09 05:08:01,692 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:08:01,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773352011] [2024-11-09 05:08:01,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773352011] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:08:01,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500459636] [2024-11-09 05:08:01,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:08:01,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:08:01,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:08:01,697 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:08:01,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-09 05:08:01,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:08:01,830 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:08:01,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:08:02,389 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2024-11-09 05:08:02,389 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:08:02,958 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2024-11-09 05:08:02,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500459636] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:08:02,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [743617612] [2024-11-09 05:08:02,960 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:08:02,961 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:08:02,961 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:08:02,961 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:08:02,962 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:08:14,479 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:08:14,480 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:08:14,481 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:08:19,197 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '43521#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 10) (<= 1 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~b~0#1|))' at error location [2024-11-09 05:08:19,197 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:08:19,197 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:08:19,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-11-09 05:08:19,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505445248] [2024-11-09 05:08:19,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:08:19,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 05:08:19,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:08:19,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 05:08:19,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=386, Invalid=2806, Unknown=0, NotChecked=0, Total=3192 [2024-11-09 05:08:19,200 INFO L87 Difference]: Start difference. First operand 329 states and 400 transitions. Second operand has 22 states, 21 states have (on average 14.0) internal successors, (294), 22 states have internal predecessors, (294), 21 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 21 states have call predecessors, (67), 21 states have call successors, (67) [2024-11-09 05:08:20,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:08:20,698 INFO L93 Difference]: Finished difference Result 989 states and 1235 transitions. [2024-11-09 05:08:20,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 05:08:20,699 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 14.0) internal successors, (294), 22 states have internal predecessors, (294), 21 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 21 states have call predecessors, (67), 21 states have call successors, (67) Word has length 176 [2024-11-09 05:08:20,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:08:20,702 INFO L225 Difference]: With dead ends: 989 [2024-11-09 05:08:20,702 INFO L226 Difference]: Without dead ends: 988 [2024-11-09 05:08:20,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 450 SyntacticMatches, 29 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4198 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=780, Invalid=4622, Unknown=0, NotChecked=0, Total=5402 [2024-11-09 05:08:20,703 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 833 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:08:20,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 413 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:08:20,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2024-11-09 05:08:20,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 694. [2024-11-09 05:08:20,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 562 states have (on average 1.1085409252669038) internal successors, (623), 568 states have internal predecessors, (623), 122 states have call successors, (122), 3 states have call predecessors, (122), 3 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) [2024-11-09 05:08:20,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 867 transitions. [2024-11-09 05:08:20,846 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 867 transitions. Word has length 176 [2024-11-09 05:08:20,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:08:20,847 INFO L471 AbstractCegarLoop]: Abstraction has 694 states and 867 transitions. [2024-11-09 05:08:20,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 14.0) internal successors, (294), 22 states have internal predecessors, (294), 21 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 21 states have call predecessors, (67), 21 states have call successors, (67) [2024-11-09 05:08:20,847 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 867 transitions. [2024-11-09 05:08:20,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-09 05:08:20,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:08:20,849 INFO L215 NwaCegarLoop]: trace histogram [23, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:08:20,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-09 05:08:21,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-09 05:08:21,050 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:08:21,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:08:21,051 INFO L85 PathProgramCache]: Analyzing trace with hash -393349456, now seen corresponding path program 5 times [2024-11-09 05:08:21,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:08:21,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139583933] [2024-11-09 05:08:21,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:08:21,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:08:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:08:21,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [642632374] [2024-11-09 05:08:21,097 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:08:21,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:08:21,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:08:21,099 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:08:21,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-09 05:08:21,198 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-09 05:08:21,199 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:08:21,200 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 05:08:21,208 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:08:21,749 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 34 proven. 132 refuted. 0 times theorem prover too weak. 533 trivial. 0 not checked. [2024-11-09 05:08:21,749 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:08:22,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:08:22,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139583933] [2024-11-09 05:08:22,246 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:08:22,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642632374] [2024-11-09 05:08:22,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642632374] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:08:22,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1835041535] [2024-11-09 05:08:22,248 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:08:22,248 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:08:22,248 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:08:22,249 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:08:22,249 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:08:35,438 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:08:35,440 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:08:35,441 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:08:44,045 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '46448#(exists ((|v_ULTIMATE.start_main_~r~0#1_148| Int) (|v_ULTIMATE.start_main_~q~0#1_159| Int) (|v_ULTIMATE.start_main_~y~0#1_101| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 1 |v_ULTIMATE.start_main_~y~0#1_101|) (<= |v_ULTIMATE.start_main_~y~0#1_101| 10) (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~y~0#1_101| |v_ULTIMATE.start_main_~q~0#1_159|) |v_ULTIMATE.start_main_~r~0#1_148|)) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= (* |v_ULTIMATE.start_main_~y~0#1_101| |v_ULTIMATE.start_main_~q~0#1_159|) 9223372036854775807)))' at error location [2024-11-09 05:08:44,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:08:44,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:08:44,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 05:08:44,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992576924] [2024-11-09 05:08:44,046 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:08:44,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:08:44,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:08:44,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:08:44,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=2244, Unknown=0, NotChecked=0, Total=2550 [2024-11-09 05:08:44,048 INFO L87 Difference]: Start difference. First operand 694 states and 867 transitions. Second operand has 11 states, 8 states have (on average 9.125) internal successors, (73), 11 states have internal predecessors, (73), 6 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-09 05:08:45,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:08:45,319 INFO L93 Difference]: Finished difference Result 698 states and 873 transitions. [2024-11-09 05:08:45,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 05:08:45,321 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 9.125) internal successors, (73), 11 states have internal predecessors, (73), 6 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 6 states have call successors, (16) Word has length 186 [2024-11-09 05:08:45,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:08:45,324 INFO L225 Difference]: With dead ends: 698 [2024-11-09 05:08:45,324 INFO L226 Difference]: Without dead ends: 609 [2024-11-09 05:08:45,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 363 SyntacticMatches, 31 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2823 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=403, Invalid=3257, Unknown=0, NotChecked=0, Total=3660 [2024-11-09 05:08:45,327 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 138 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:08:45,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 100 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 05:08:45,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2024-11-09 05:08:45,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 595. [2024-11-09 05:08:45,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 481 states have (on average 1.1039501039501038) internal successors, (531), 486 states have internal predecessors, (531), 105 states have call successors, (105), 3 states have call predecessors, (105), 3 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-09 05:08:45,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 741 transitions. [2024-11-09 05:08:45,496 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 741 transitions. Word has length 186 [2024-11-09 05:08:45,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:08:45,497 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 741 transitions. [2024-11-09 05:08:45,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 9.125) internal successors, (73), 11 states have internal predecessors, (73), 6 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-09 05:08:45,497 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 741 transitions. [2024-11-09 05:08:45,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-09 05:08:45,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:08:45,498 INFO L215 NwaCegarLoop]: trace histogram [23, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:08:45,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-09 05:08:45,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-09 05:08:45,699 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:08:45,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:08:45,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1509570791, now seen corresponding path program 2 times [2024-11-09 05:08:45,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:08:45,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251041236] [2024-11-09 05:08:45,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:08:45,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:08:45,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:08:45,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1768159531] [2024-11-09 05:08:45,739 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:08:45,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:08:45,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:08:45,745 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:08:45,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-09 05:08:45,840 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 05:08:45,840 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:08:45,845 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 05:08:45,849 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:08:46,547 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 100 proven. 28 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked. [2024-11-09 05:08:46,547 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:08:49,213 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:08:49,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251041236] [2024-11-09 05:08:49,213 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:08:49,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768159531] [2024-11-09 05:08:49,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768159531] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:08:49,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1821102637] [2024-11-09 05:08:49,215 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:08:49,215 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:08:49,215 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:08:49,216 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:08:49,216 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:09:02,388 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:09:02,389 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:09:02,391 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:09:09,070 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '48704#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~a~0#1_412| Int) (|v_ULTIMATE.start_main_~y~0#1_104| Int)) (and (<= 1 |v_ULTIMATE.start_main_~y~0#1_104|) (<= |v_ULTIMATE.start_main_~y~0#1_104| 10) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_104| |v_ULTIMATE.start_main_~a~0#1_412|)))) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= 1 |ULTIMATE.start_main_~r~0#1|))' at error location [2024-11-09 05:09:09,070 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:09:09,070 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:09:09,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-09 05:09:09,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915003663] [2024-11-09 05:09:09,071 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:09:09,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 05:09:09,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:09:09,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 05:09:09,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=2344, Unknown=1, NotChecked=0, Total=2652 [2024-11-09 05:09:09,073 INFO L87 Difference]: Start difference. First operand 595 states and 741 transitions. Second operand has 12 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 5 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-09 05:09:10,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:09:10,113 INFO L93 Difference]: Finished difference Result 609 states and 759 transitions. [2024-11-09 05:09:10,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 05:09:10,114 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 5 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 186 [2024-11-09 05:09:10,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:09:10,117 INFO L225 Difference]: With dead ends: 609 [2024-11-09 05:09:10,117 INFO L226 Difference]: Without dead ends: 598 [2024-11-09 05:09:10,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 300 SyntacticMatches, 29 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2758 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=400, Invalid=3139, Unknown=1, NotChecked=0, Total=3540 [2024-11-09 05:09:10,119 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 127 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:09:10,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 290 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:09:10,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2024-11-09 05:09:10,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 570. [2024-11-09 05:09:10,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 460 states have (on average 1.0369565217391303) internal successors, (477), 461 states have internal predecessors, (477), 105 states have call successors, (105), 3 states have call predecessors, (105), 3 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-09 05:09:10,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 687 transitions. [2024-11-09 05:09:10,274 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 687 transitions. Word has length 186 [2024-11-09 05:09:10,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:09:10,275 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 687 transitions. [2024-11-09 05:09:10,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 5 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-09 05:09:10,275 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 687 transitions. [2024-11-09 05:09:10,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2024-11-09 05:09:10,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:09:10,279 INFO L215 NwaCegarLoop]: trace histogram [38, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:09:10,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-09 05:09:10,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-09 05:09:10,479 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:09:10,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:09:10,480 INFO L85 PathProgramCache]: Analyzing trace with hash -852696689, now seen corresponding path program 1 times [2024-11-09 05:09:10,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:09:10,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441780311] [2024-11-09 05:09:10,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:09:10,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:09:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:09:10,806 INFO L134 CoverageAnalysis]: Checked inductivity of 2071 backedges. 299 proven. 150 refuted. 0 times theorem prover too weak. 1622 trivial. 0 not checked. [2024-11-09 05:09:10,807 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:09:10,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441780311] [2024-11-09 05:09:10,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441780311] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:09:10,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98100328] [2024-11-09 05:09:10,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:09:10,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:09:10,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:09:10,810 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:09:10,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-09 05:09:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:09:10,943 INFO L255 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 05:09:10,948 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:09:11,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2071 backedges. 755 proven. 363 refuted. 0 times theorem prover too weak. 953 trivial. 0 not checked. [2024-11-09 05:09:11,439 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:09:11,896 INFO L134 CoverageAnalysis]: Checked inductivity of 2071 backedges. 275 proven. 363 refuted. 0 times theorem prover too weak. 1433 trivial. 0 not checked. [2024-11-09 05:09:11,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98100328] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:09:11,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1192168989] [2024-11-09 05:09:11,898 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:09:11,898 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:09:11,899 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:09:11,899 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:09:11,899 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:09:25,705 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:09:25,707 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:09:25,708 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:09:34,368 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '51985#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 10) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= 1 |ULTIMATE.start_main_~r~0#1|))' at error location [2024-11-09 05:09:34,369 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:09:34,369 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:09:34,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 11, 11] total 20 [2024-11-09 05:09:34,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875108787] [2024-11-09 05:09:34,370 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:09:34,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-09 05:09:34,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:09:34,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 05:09:34,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=2666, Unknown=0, NotChecked=0, Total=2970 [2024-11-09 05:09:34,373 INFO L87 Difference]: Start difference. First operand 570 states and 687 transitions. Second operand has 20 states, 20 states have (on average 13.25) internal successors, (265), 20 states have internal predecessors, (265), 17 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (67), 17 states have call predecessors, (67), 17 states have call successors, (67) [2024-11-09 05:09:38,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:09:38,831 INFO L93 Difference]: Finished difference Result 1146 states and 1373 transitions. [2024-11-09 05:09:38,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-09 05:09:38,831 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.25) internal successors, (265), 20 states have internal predecessors, (265), 17 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (67), 17 states have call predecessors, (67), 17 states have call successors, (67) Word has length 291 [2024-11-09 05:09:38,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:09:38,835 INFO L225 Difference]: With dead ends: 1146 [2024-11-09 05:09:38,835 INFO L226 Difference]: Without dead ends: 834 [2024-11-09 05:09:38,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 933 GetRequests, 779 SyntacticMatches, 54 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5805 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=1184, Invalid=9118, Unknown=0, NotChecked=0, Total=10302 [2024-11-09 05:09:38,839 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 513 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 2892 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 3015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 2892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:09:38,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 1520 Invalid, 3015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 2892 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-09 05:09:38,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-11-09 05:09:39,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 696. [2024-11-09 05:09:39,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 564 states have (on average 1.0301418439716312) internal successors, (581), 564 states have internal predecessors, (581), 128 states have call successors, (128), 3 states have call predecessors, (128), 3 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-09 05:09:39,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 837 transitions. [2024-11-09 05:09:39,080 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 837 transitions. Word has length 291 [2024-11-09 05:09:39,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:09:39,081 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 837 transitions. [2024-11-09 05:09:39,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.25) internal successors, (265), 20 states have internal predecessors, (265), 17 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (67), 17 states have call predecessors, (67), 17 states have call successors, (67) [2024-11-09 05:09:39,081 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 837 transitions. [2024-11-09 05:09:39,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-11-09 05:09:39,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:09:39,085 INFO L215 NwaCegarLoop]: trace histogram [42, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:09:39,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-09 05:09:39,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-09 05:09:39,290 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:09:39,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:09:39,290 INFO L85 PathProgramCache]: Analyzing trace with hash -2115341777, now seen corresponding path program 2 times [2024-11-09 05:09:39,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:09:39,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165635125] [2024-11-09 05:09:39,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:09:39,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:09:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:09:40,044 INFO L134 CoverageAnalysis]: Checked inductivity of 2579 backedges. 0 proven. 851 refuted. 0 times theorem prover too weak. 1728 trivial. 0 not checked. [2024-11-09 05:09:40,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:09:40,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165635125] [2024-11-09 05:09:40,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165635125] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:09:40,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776059933] [2024-11-09 05:09:40,045 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:09:40,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:09:40,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:09:40,050 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:09:40,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-09 05:09:40,167 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 05:09:40,167 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:09:40,170 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 05:09:40,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:09:41,623 INFO L134 CoverageAnalysis]: Checked inductivity of 2579 backedges. 105 proven. 537 refuted. 0 times theorem prover too weak. 1937 trivial. 0 not checked. [2024-11-09 05:09:41,623 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:09:41,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776059933] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:09:41,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1220346311] [2024-11-09 05:09:41,905 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:09:41,906 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:09:41,906 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:09:41,906 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:09:41,907 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:09:53,538 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:09:53,539 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:09:53,540 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:10:00,520 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '55468#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 10) (<= 1 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~b~0#1|))' at error location [2024-11-09 05:10:00,520 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:10:00,520 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:10:00,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 22 [2024-11-09 05:10:00,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761946230] [2024-11-09 05:10:00,521 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:10:00,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 05:10:00,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:10:00,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 05:10:00,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=412, Invalid=3494, Unknown=0, NotChecked=0, Total=3906 [2024-11-09 05:10:00,524 INFO L87 Difference]: Start difference. First operand 696 states and 837 transitions. Second operand has 23 states, 20 states have (on average 13.25) internal successors, (265), 22 states have internal predecessors, (265), 17 states have call successors, (59), 1 states have call predecessors, (59), 3 states have return successors, (61), 18 states have call predecessors, (61), 17 states have call successors, (61) [2024-11-09 05:10:06,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:10:06,544 INFO L93 Difference]: Finished difference Result 1081 states and 1299 transitions. [2024-11-09 05:10:06,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-11-09 05:10:06,545 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 13.25) internal successors, (265), 22 states have internal predecessors, (265), 17 states have call successors, (59), 1 states have call predecessors, (59), 3 states have return successors, (61), 18 states have call predecessors, (61), 17 states have call successors, (61) Word has length 326 [2024-11-09 05:10:06,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:10:06,550 INFO L225 Difference]: With dead ends: 1081 [2024-11-09 05:10:06,550 INFO L226 Difference]: Without dead ends: 1076 [2024-11-09 05:10:06,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 747 GetRequests, 567 SyntacticMatches, 54 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10476 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=2507, Invalid=13749, Unknown=0, NotChecked=0, Total=16256 [2024-11-09 05:10:06,554 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 744 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:10:06,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 227 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 05:10:06,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2024-11-09 05:10:06,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 938. [2024-11-09 05:10:06,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 764 states have (on average 1.031413612565445) internal successors, (788), 764 states have internal predecessors, (788), 170 states have call successors, (170), 3 states have call predecessors, (170), 3 states have return successors, (170), 170 states have call predecessors, (170), 170 states have call successors, (170) [2024-11-09 05:10:06,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1128 transitions. [2024-11-09 05:10:06,842 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1128 transitions. Word has length 326 [2024-11-09 05:10:06,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:10:06,842 INFO L471 AbstractCegarLoop]: Abstraction has 938 states and 1128 transitions. [2024-11-09 05:10:06,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 13.25) internal successors, (265), 22 states have internal predecessors, (265), 17 states have call successors, (59), 1 states have call predecessors, (59), 3 states have return successors, (61), 18 states have call predecessors, (61), 17 states have call successors, (61) [2024-11-09 05:10:06,842 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1128 transitions. [2024-11-09 05:10:06,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2024-11-09 05:10:06,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:06,846 INFO L215 NwaCegarLoop]: trace histogram [43, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:10:06,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-09 05:10:07,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-09 05:10:07,051 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:10:07,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:07,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1311174250, now seen corresponding path program 3 times [2024-11-09 05:10:07,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:10:07,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158080603] [2024-11-09 05:10:07,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:07,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:10:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:07,727 INFO L134 CoverageAnalysis]: Checked inductivity of 2628 backedges. 0 proven. 816 refuted. 0 times theorem prover too weak. 1812 trivial. 0 not checked. [2024-11-09 05:10:07,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:10:07,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158080603] [2024-11-09 05:10:07,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158080603] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:10:07,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232035057] [2024-11-09 05:10:07,728 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:10:07,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:07,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:10:07,729 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:10:07,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-09 05:10:07,865 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:10:07,865 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:10:07,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 05:10:07,872 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:08,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2628 backedges. 0 proven. 816 refuted. 0 times theorem prover too weak. 1812 trivial. 0 not checked. [2024-11-09 05:10:08,675 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:10:09,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2628 backedges. 0 proven. 816 refuted. 0 times theorem prover too weak. 1812 trivial. 0 not checked. [2024-11-09 05:10:09,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232035057] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:10:09,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [449563821] [2024-11-09 05:10:09,540 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:10:09,540 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:10:09,541 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:10:09,541 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:10:09,541 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:10:21,953 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:10:21,954 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:10:21,955 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:10:27,508 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '60167#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 10) (<= 1 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~b~0#1|))' at error location [2024-11-09 05:10:27,509 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:10:27,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:10:27,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 38 [2024-11-09 05:10:27,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36348259] [2024-11-09 05:10:27,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:10:27,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-09 05:10:27,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:10:27,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-09 05:10:27,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=710, Invalid=4692, Unknown=0, NotChecked=0, Total=5402 [2024-11-09 05:10:27,513 INFO L87 Difference]: Start difference. First operand 938 states and 1128 transitions. Second operand has 39 states, 38 states have (on average 14.973684210526315) internal successors, (569), 39 states have internal predecessors, (569), 38 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 38 states have call predecessors, (128), 38 states have call successors, (128) [2024-11-09 05:10:30,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:10:30,561 INFO L93 Difference]: Finished difference Result 2460 states and 2970 transitions. [2024-11-09 05:10:30,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-09 05:10:30,562 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 14.973684210526315) internal successors, (569), 39 states have internal predecessors, (569), 38 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 38 states have call predecessors, (128), 38 states have call successors, (128) Word has length 333 [2024-11-09 05:10:30,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:10:30,569 INFO L225 Difference]: With dead ends: 2460 [2024-11-09 05:10:30,569 INFO L226 Difference]: Without dead ends: 2358 [2024-11-09 05:10:30,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1043 GetRequests, 883 SyntacticMatches, 56 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10436 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=1931, Invalid=9199, Unknown=0, NotChecked=0, Total=11130 [2024-11-09 05:10:30,572 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 1757 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1780 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:10:30,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1780 Valid, 711 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [408 Valid, 903 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 05:10:30,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2358 states. [2024-11-09 05:10:31,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2358 to 1650. [2024-11-09 05:10:31,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1650 states, 1346 states have (on average 1.0304606240713223) internal successors, (1387), 1346 states have internal predecessors, (1387), 300 states have call successors, (300), 3 states have call predecessors, (300), 3 states have return successors, (300), 300 states have call predecessors, (300), 300 states have call successors, (300) [2024-11-09 05:10:31,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1650 states to 1650 states and 1987 transitions. [2024-11-09 05:10:31,050 INFO L78 Accepts]: Start accepts. Automaton has 1650 states and 1987 transitions. Word has length 333 [2024-11-09 05:10:31,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:10:31,051 INFO L471 AbstractCegarLoop]: Abstraction has 1650 states and 1987 transitions. [2024-11-09 05:10:31,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 14.973684210526315) internal successors, (569), 39 states have internal predecessors, (569), 38 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 38 states have call predecessors, (128), 38 states have call successors, (128) [2024-11-09 05:10:31,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1650 states and 1987 transitions. [2024-11-09 05:10:31,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2024-11-09 05:10:31,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:31,058 INFO L215 NwaCegarLoop]: trace histogram [55, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:10:31,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-09 05:10:31,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-11-09 05:10:31,259 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:10:31,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:31,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1788660898, now seen corresponding path program 4 times [2024-11-09 05:10:31,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:10:31,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943247430] [2024-11-09 05:10:31,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:31,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:10:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:32,083 INFO L134 CoverageAnalysis]: Checked inductivity of 4437 backedges. 0 proven. 1461 refuted. 0 times theorem prover too weak. 2976 trivial. 0 not checked. [2024-11-09 05:10:32,084 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:10:32,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943247430] [2024-11-09 05:10:32,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943247430] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:10:32,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935825637] [2024-11-09 05:10:32,084 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 05:10:32,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:32,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:10:32,086 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:10:32,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-09 05:10:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:32,250 INFO L255 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:10:32,256 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:32,573 INFO L134 CoverageAnalysis]: Checked inductivity of 4437 backedges. 1739 proven. 157 refuted. 0 times theorem prover too weak. 2541 trivial. 0 not checked. [2024-11-09 05:10:32,573 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:10:33,160 INFO L134 CoverageAnalysis]: Checked inductivity of 4437 backedges. 987 proven. 157 refuted. 0 times theorem prover too weak. 3293 trivial. 0 not checked. [2024-11-09 05:10:33,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935825637] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:10:33,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1621886834] [2024-11-09 05:10:33,162 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:10:33,162 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:10:33,162 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:10:33,162 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:10:33,163 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:10:43,212 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:10:43,213 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:10:43,213 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:10:49,413 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '67885#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 10) (<= 1 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~b~0#1|))' at error location [2024-11-09 05:10:49,413 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:10:49,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:10:49,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 9, 9] total 27 [2024-11-09 05:10:49,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813804095] [2024-11-09 05:10:49,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:10:49,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-09 05:10:49,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:10:49,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-09 05:10:49,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=362, Invalid=3544, Unknown=0, NotChecked=0, Total=3906 [2024-11-09 05:10:49,416 INFO L87 Difference]: Start difference. First operand 1650 states and 1987 transitions. Second operand has 27 states, 27 states have (on average 15.11111111111111) internal successors, (408), 27 states have internal predecessors, (408), 25 states have call successors, (95), 2 states have call predecessors, (95), 2 states have return successors, (95), 25 states have call predecessors, (95), 25 states have call successors, (95) [2024-11-09 05:10:52,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:10:52,664 INFO L93 Difference]: Finished difference Result 2745 states and 3295 transitions. [2024-11-09 05:10:52,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-09 05:10:52,665 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 15.11111111111111) internal successors, (408), 27 states have internal predecessors, (408), 25 states have call successors, (95), 2 states have call predecessors, (95), 2 states have return successors, (95), 25 states have call predecessors, (95), 25 states have call successors, (95) Word has length 423 [2024-11-09 05:10:52,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:10:52,674 INFO L225 Difference]: With dead ends: 2745 [2024-11-09 05:10:52,674 INFO L226 Difference]: Without dead ends: 1598 [2024-11-09 05:10:52,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1322 GetRequests, 1150 SyntacticMatches, 76 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7844 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=837, Invalid=8669, Unknown=0, NotChecked=0, Total=9506 [2024-11-09 05:10:52,679 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 616 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 2316 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 2448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 2316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:10:52,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 888 Invalid, 2448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 2316 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 05:10:52,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2024-11-09 05:10:53,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1304. [2024-11-09 05:10:53,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 1064 states have (on average 1.0300751879699248) internal successors, (1096), 1064 states have internal predecessors, (1096), 236 states have call successors, (236), 3 states have call predecessors, (236), 3 states have return successors, (236), 236 states have call predecessors, (236), 236 states have call successors, (236) [2024-11-09 05:10:53,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1568 transitions. [2024-11-09 05:10:53,193 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1568 transitions. Word has length 423 [2024-11-09 05:10:53,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:10:53,194 INFO L471 AbstractCegarLoop]: Abstraction has 1304 states and 1568 transitions. [2024-11-09 05:10:53,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 15.11111111111111) internal successors, (408), 27 states have internal predecessors, (408), 25 states have call successors, (95), 2 states have call predecessors, (95), 2 states have return successors, (95), 25 states have call predecessors, (95), 25 states have call successors, (95) [2024-11-09 05:10:53,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1568 transitions. [2024-11-09 05:10:53,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2024-11-09 05:10:53,201 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:53,201 INFO L215 NwaCegarLoop]: trace histogram [55, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:10:53,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-09 05:10:53,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:53,402 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:10:53,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:53,402 INFO L85 PathProgramCache]: Analyzing trace with hash -272956854, now seen corresponding path program 5 times [2024-11-09 05:10:53,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:10:53,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228761343] [2024-11-09 05:10:53,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:53,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:10:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:54,488 INFO L134 CoverageAnalysis]: Checked inductivity of 4437 backedges. 0 proven. 1461 refuted. 0 times theorem prover too weak. 2976 trivial. 0 not checked. [2024-11-09 05:10:54,488 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:10:54,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228761343] [2024-11-09 05:10:54,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228761343] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:10:54,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729332355] [2024-11-09 05:10:54,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:10:54,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:54,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:10:54,491 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:10:54,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-09 05:10:54,618 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 05:10:54,618 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:10:54,619 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 05:10:54,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:57,107 INFO L134 CoverageAnalysis]: Checked inductivity of 4437 backedges. 776 proven. 171 refuted. 0 times theorem prover too weak. 3490 trivial. 0 not checked. [2024-11-09 05:10:57,107 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:10:57,648 INFO L134 CoverageAnalysis]: Checked inductivity of 4437 backedges. 219 proven. 3 refuted. 0 times theorem prover too weak. 4215 trivial. 0 not checked. [2024-11-09 05:10:57,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729332355] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:10:57,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1830509564] [2024-11-09 05:10:57,652 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:10:57,652 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:10:57,652 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:10:57,653 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:10:57,653 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:11:09,471 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:11:09,472 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:11:09,472 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:11:19,551 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '75567#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 10) (<= 1 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~b~0#1|))' at error location [2024-11-09 05:11:19,551 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:11:19,552 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:11:19,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13, 6] total 33 [2024-11-09 05:11:19,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065789868] [2024-11-09 05:11:19,552 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:11:19,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-09 05:11:19,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:11:19,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-09 05:11:19,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=487, Invalid=4205, Unknown=0, NotChecked=0, Total=4692 [2024-11-09 05:11:19,555 INFO L87 Difference]: Start difference. First operand 1304 states and 1568 transitions. Second operand has 34 states, 29 states have (on average 13.344827586206897) internal successors, (387), 32 states have internal predecessors, (387), 25 states have call successors, (87), 1 states have call predecessors, (87), 3 states have return successors, (88), 25 states have call predecessors, (88), 25 states have call successors, (88) [2024-11-09 05:11:26,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:11:26,070 INFO L93 Difference]: Finished difference Result 1893 states and 2267 transitions. [2024-11-09 05:11:26,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2024-11-09 05:11:26,070 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 29 states have (on average 13.344827586206897) internal successors, (387), 32 states have internal predecessors, (387), 25 states have call successors, (87), 1 states have call predecessors, (87), 3 states have return successors, (88), 25 states have call predecessors, (88), 25 states have call successors, (88) Word has length 423 [2024-11-09 05:11:26,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:11:26,078 INFO L225 Difference]: With dead ends: 1893 [2024-11-09 05:11:26,078 INFO L226 Difference]: Without dead ends: 1541 [2024-11-09 05:11:26,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1363 GetRequests, 1146 SyntacticMatches, 71 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14439 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=2767, Invalid=18989, Unknown=0, NotChecked=0, Total=21756 [2024-11-09 05:11:26,084 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 937 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 2080 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 2301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 2080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:11:26,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 743 Invalid, 2301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 2080 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-09 05:11:26,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1541 states. [2024-11-09 05:11:26,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1541 to 424. [2024-11-09 05:11:26,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 342 states have (on average 1.0204678362573099) internal successors, (349), 342 states have internal predecessors, (349), 78 states have call successors, (78), 3 states have call predecessors, (78), 3 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-09 05:11:26,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 505 transitions. [2024-11-09 05:11:26,320 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 505 transitions. Word has length 423 [2024-11-09 05:11:26,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:11:26,321 INFO L471 AbstractCegarLoop]: Abstraction has 424 states and 505 transitions. [2024-11-09 05:11:26,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 29 states have (on average 13.344827586206897) internal successors, (387), 32 states have internal predecessors, (387), 25 states have call successors, (87), 1 states have call predecessors, (87), 3 states have return successors, (88), 25 states have call predecessors, (88), 25 states have call successors, (88) [2024-11-09 05:11:26,324 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 505 transitions. [2024-11-09 05:11:26,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 574 [2024-11-09 05:11:26,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:11:26,328 INFO L215 NwaCegarLoop]: trace histogram [75, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:11:26,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-09 05:11:26,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-09 05:11:26,529 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:11:26,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:11:26,530 INFO L85 PathProgramCache]: Analyzing trace with hash -394753498, now seen corresponding path program 6 times [2024-11-09 05:11:26,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:11:26,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497844516] [2024-11-09 05:11:26,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:26,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:11:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:11:27,926 INFO L134 CoverageAnalysis]: Checked inductivity of 8532 backedges. 0 proven. 2976 refuted. 0 times theorem prover too weak. 5556 trivial. 0 not checked. [2024-11-09 05:11:27,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:11:27,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497844516] [2024-11-09 05:11:27,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497844516] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:11:27,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48101195] [2024-11-09 05:11:27,927 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:11:27,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:11:27,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:11:27,928 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:11:27,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-09 05:11:28,136 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:11:28,136 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:11:28,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 919 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:11:28,149 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:11:28,686 INFO L134 CoverageAnalysis]: Checked inductivity of 8532 backedges. 4407 proven. 657 refuted. 0 times theorem prover too weak. 3468 trivial. 0 not checked. [2024-11-09 05:11:28,686 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:11:29,399 INFO L134 CoverageAnalysis]: Checked inductivity of 8532 backedges. 1595 proven. 657 refuted. 0 times theorem prover too weak. 6280 trivial. 0 not checked. [2024-11-09 05:11:29,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48101195] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:11:29,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1848683224] [2024-11-09 05:11:29,400 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:11:29,400 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:11:29,400 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:11:29,401 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:11:29,401 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:11:41,309 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:11:41,310 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:11:41,311 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:11:51,803 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '82088#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 10) (<= 1 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~b~0#1|))' at error location [2024-11-09 05:11:51,803 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:11:51,803 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:11:51,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 13, 13] total 38 [2024-11-09 05:11:51,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838244855] [2024-11-09 05:11:51,804 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:11:51,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-09 05:11:51,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:11:51,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-09 05:11:51,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=412, Invalid=4844, Unknown=0, NotChecked=0, Total=5256 [2024-11-09 05:11:51,807 INFO L87 Difference]: Start difference. First operand 424 states and 505 transitions. Second operand has 38 states, 38 states have (on average 15.552631578947368) internal successors, (591), 38 states have internal predecessors, (591), 36 states have call successors, (139), 2 states have call predecessors, (139), 2 states have return successors, (139), 36 states have call predecessors, (139), 36 states have call successors, (139) [2024-11-09 05:11:57,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:11:57,850 INFO L93 Difference]: Finished difference Result 1224 states and 1458 transitions. [2024-11-09 05:11:57,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-11-09 05:11:57,851 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 15.552631578947368) internal successors, (591), 38 states have internal predecessors, (591), 36 states have call successors, (139), 2 states have call predecessors, (139), 2 states have return successors, (139), 36 states have call predecessors, (139), 36 states have call successors, (139) Word has length 573 [2024-11-09 05:11:57,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:11:57,856 INFO L225 Difference]: With dead ends: 1224 [2024-11-09 05:11:57,856 INFO L226 Difference]: Without dead ends: 814 [2024-11-09 05:11:57,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1801 GetRequests, 1570 SyntacticMatches, 103 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12504 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=1585, Invalid=15185, Unknown=0, NotChecked=0, Total=16770 [2024-11-09 05:11:57,860 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 944 mSDsluCounter, 1611 mSDsCounter, 0 mSdLazyCounter, 4401 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 957 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 4634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 4401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:11:57,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [957 Valid, 1710 Invalid, 4634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 4401 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-09 05:11:57,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2024-11-09 05:11:58,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 468. [2024-11-09 05:11:58,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 378 states have (on average 1.0158730158730158) internal successors, (384), 378 states have internal predecessors, (384), 86 states have call successors, (86), 3 states have call predecessors, (86), 3 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-09 05:11:58,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 556 transitions. [2024-11-09 05:11:58,027 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 556 transitions. Word has length 573 [2024-11-09 05:11:58,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:11:58,027 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 556 transitions. [2024-11-09 05:11:58,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 15.552631578947368) internal successors, (591), 38 states have internal predecessors, (591), 36 states have call successors, (139), 2 states have call predecessors, (139), 2 states have return successors, (139), 36 states have call predecessors, (139), 36 states have call successors, (139) [2024-11-09 05:11:58,028 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 556 transitions. [2024-11-09 05:11:58,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 634 [2024-11-09 05:11:58,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:11:58,034 INFO L215 NwaCegarLoop]: trace histogram [83, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:11:58,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-09 05:11:58,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-11-09 05:11:58,235 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:11:58,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:11:58,236 INFO L85 PathProgramCache]: Analyzing trace with hash 780947302, now seen corresponding path program 7 times [2024-11-09 05:11:58,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:11:58,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070990825] [2024-11-09 05:11:58,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:58,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:11:58,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:11:59,918 INFO L134 CoverageAnalysis]: Checked inductivity of 10548 backedges. 0 proven. 3736 refuted. 0 times theorem prover too weak. 6812 trivial. 0 not checked. [2024-11-09 05:11:59,918 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:11:59,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070990825] [2024-11-09 05:11:59,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070990825] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:11:59,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308478683] [2024-11-09 05:11:59,919 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 05:11:59,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:11:59,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:11:59,921 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:11:59,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-09 05:12:00,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:00,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 05:12:00,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:00,803 INFO L134 CoverageAnalysis]: Checked inductivity of 10548 backedges. 5377 proven. 1039 refuted. 0 times theorem prover too weak. 4132 trivial. 0 not checked. [2024-11-09 05:12:00,804 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:12:01,687 INFO L134 CoverageAnalysis]: Checked inductivity of 10548 backedges. 1973 proven. 1039 refuted. 0 times theorem prover too weak. 7536 trivial. 0 not checked. [2024-11-09 05:12:01,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308478683] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:12:01,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [394306975] [2024-11-09 05:12:01,688 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:12:01,688 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:12:01,688 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:12:01,688 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:12:01,689 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:12:12,115 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:12:12,116 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:12:12,118 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:12:23,531 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '88169#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 10) (<= 1 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~b~0#1|))' at error location [2024-11-09 05:12:23,532 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:12:23,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:12:23,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 15, 15] total 43 [2024-11-09 05:12:23,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444243495] [2024-11-09 05:12:23,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:12:23,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-09 05:12:23,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:23,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-09 05:12:23,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=446, Invalid=5560, Unknown=0, NotChecked=0, Total=6006 [2024-11-09 05:12:23,537 INFO L87 Difference]: Start difference. First operand 468 states and 556 transitions. Second operand has 43 states, 43 states have (on average 15.837209302325581) internal successors, (681), 43 states have internal predecessors, (681), 41 states have call successors, (159), 2 states have call predecessors, (159), 2 states have return successors, (159), 41 states have call predecessors, (159), 41 states have call successors, (159) [2024-11-09 05:12:31,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:31,843 INFO L93 Difference]: Finished difference Result 1262 states and 1500 transitions. [2024-11-09 05:12:31,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2024-11-09 05:12:31,844 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 15.837209302325581) internal successors, (681), 43 states have internal predecessors, (681), 41 states have call successors, (159), 2 states have call predecessors, (159), 2 states have return successors, (159), 41 states have call predecessors, (159), 41 states have call successors, (159) Word has length 633 [2024-11-09 05:12:31,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:31,849 INFO L225 Difference]: With dead ends: 1262 [2024-11-09 05:12:31,849 INFO L226 Difference]: Without dead ends: 808 [2024-11-09 05:12:31,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1986 GetRequests, 1735 SyntacticMatches, 114 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14338 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=1697, Invalid=17485, Unknown=0, NotChecked=0, Total=19182 [2024-11-09 05:12:31,854 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 991 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 5997 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 2158 SdHoareTripleChecker+Invalid, 6241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 5997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:31,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1004 Valid, 2158 Invalid, 6241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 5997 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-09 05:12:31,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2024-11-09 05:12:32,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 512. [2024-11-09 05:12:32,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 414 states have (on average 1.0120772946859904) internal successors, (419), 414 states have internal predecessors, (419), 94 states have call successors, (94), 3 states have call predecessors, (94), 3 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-09 05:12:32,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 607 transitions. [2024-11-09 05:12:32,071 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 607 transitions. Word has length 633 [2024-11-09 05:12:32,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:32,072 INFO L471 AbstractCegarLoop]: Abstraction has 512 states and 607 transitions. [2024-11-09 05:12:32,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 15.837209302325581) internal successors, (681), 43 states have internal predecessors, (681), 41 states have call successors, (159), 2 states have call predecessors, (159), 2 states have return successors, (159), 41 states have call predecessors, (159), 41 states have call successors, (159) [2024-11-09 05:12:32,072 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 607 transitions. [2024-11-09 05:12:32,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 694 [2024-11-09 05:12:32,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:32,079 INFO L215 NwaCegarLoop]: trace histogram [91, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:12:32,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-09 05:12:32,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:32,280 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 05:12:32,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:32,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1513658714, now seen corresponding path program 8 times [2024-11-09 05:12:32,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:32,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448048315] [2024-11-09 05:12:32,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:32,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:32,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:34,200 INFO L134 CoverageAnalysis]: Checked inductivity of 12780 backedges. 0 proven. 4584 refuted. 0 times theorem prover too weak. 8196 trivial. 0 not checked. [2024-11-09 05:12:34,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:34,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448048315] [2024-11-09 05:12:34,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448048315] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:12:34,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551911027] [2024-11-09 05:12:34,201 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:12:34,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:34,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:12:34,203 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:12:34,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-09 05:12:34,335 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 05:12:34,335 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:12:34,337 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-09 05:12:34,348 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:41,917 INFO L134 CoverageAnalysis]: Checked inductivity of 12780 backedges. 179 proven. 3365 refuted. 0 times theorem prover too weak. 9236 trivial. 0 not checked. [2024-11-09 05:12:41,917 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:12:42,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551911027] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:12:42,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [824105328] [2024-11-09 05:12:42,318 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 05:12:42,319 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:12:42,319 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:12:42,319 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:12:42,319 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:12:54,181 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:12:54,182 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:12:54,183 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:13:17,492 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '92699#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 10) (<= 1 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~b~0#1|))' at error location [2024-11-09 05:13:17,492 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:13:17,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:13:17,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 17] total 42 [2024-11-09 05:13:17,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279206747] [2024-11-09 05:13:17,492 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:13:17,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-09 05:13:17,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:13:17,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-09 05:13:17,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=515, Invalid=5965, Unknown=0, NotChecked=0, Total=6480 [2024-11-09 05:13:17,496 INFO L87 Difference]: Start difference. First operand 512 states and 607 transitions. Second operand has 43 states, 40 states have (on average 12.9) internal successors, (516), 42 states have internal predecessors, (516), 34 states have call successors, (116), 1 states have call predecessors, (116), 3 states have return successors, (118), 33 states have call predecessors, (118), 34 states have call successors, (118) [2024-11-09 05:13:23,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:13:25,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:13:26,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:13:28,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:13:31,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:13:35,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:13:37,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:13:39,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:13:42,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:13:44,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:13:46,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:13:48,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:13:49,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:13:51,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:13:54,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:13:56,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:13:58,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:14:03,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:14:06,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:14:09,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:14:09,570 INFO L93 Difference]: Finished difference Result 542 states and 641 transitions. [2024-11-09 05:14:09,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-09 05:14:09,571 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 40 states have (on average 12.9) internal successors, (516), 42 states have internal predecessors, (516), 34 states have call successors, (116), 1 states have call predecessors, (116), 3 states have return successors, (118), 33 states have call predecessors, (118), 34 states have call successors, (118) Word has length 693 [2024-11-09 05:14:09,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:14:09,572 INFO L225 Difference]: With dead ends: 542 [2024-11-09 05:14:09,573 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 05:14:09,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1449 GetRequests, 1234 SyntacticMatches, 116 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12945 ImplicationChecksByTransitivity, 28.3s TimeCoverageRelationStatistics Valid=1042, Invalid=9058, Unknown=0, NotChecked=0, Total=10100 [2024-11-09 05:14:09,576 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 461 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 1903 mSolverCounterSat, 135 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 2056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1903 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:14:09,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 843 Invalid, 2056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1903 Invalid, 18 Unknown, 0 Unchecked, 48.8s Time] [2024-11-09 05:14:09,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 05:14:09,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 05:14:09,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:14:09,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 05:14:09,578 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 693 [2024-11-09 05:14:09,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:14:09,578 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 05:14:09,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 40 states have (on average 12.9) internal successors, (516), 42 states have internal predecessors, (516), 34 states have call successors, (116), 1 states have call predecessors, (116), 3 states have return successors, (118), 33 states have call predecessors, (118), 34 states have call successors, (118) [2024-11-09 05:14:09,579 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 05:14:09,579 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 05:14:09,582 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 30 remaining) [2024-11-09 05:14:09,583 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 30 remaining) [2024-11-09 05:14:09,583 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 30 remaining) [2024-11-09 05:14:09,584 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 30 remaining) [2024-11-09 05:14:09,584 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 30 remaining) [2024-11-09 05:14:09,584 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 30 remaining) [2024-11-09 05:14:09,584 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 30 remaining) [2024-11-09 05:14:09,584 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 30 remaining) [2024-11-09 05:14:09,584 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 30 remaining) [2024-11-09 05:14:09,584 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 30 remaining) [2024-11-09 05:14:09,585 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 30 remaining) [2024-11-09 05:14:09,585 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 30 remaining) [2024-11-09 05:14:09,585 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 30 remaining) [2024-11-09 05:14:09,585 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 30 remaining) [2024-11-09 05:14:09,586 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 30 remaining) [2024-11-09 05:14:09,586 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 30 remaining) [2024-11-09 05:14:09,586 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 30 remaining) [2024-11-09 05:14:09,586 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 30 remaining) [2024-11-09 05:14:09,586 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 30 remaining) [2024-11-09 05:14:09,587 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 30 remaining) [2024-11-09 05:14:09,587 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 30 remaining) [2024-11-09 05:14:09,587 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 30 remaining) [2024-11-09 05:14:09,587 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 30 remaining) [2024-11-09 05:14:09,587 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 30 remaining) [2024-11-09 05:14:09,588 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 30 remaining) [2024-11-09 05:14:09,588 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 30 remaining) [2024-11-09 05:14:09,588 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 30 remaining) [2024-11-09 05:14:09,588 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 30 remaining) [2024-11-09 05:14:09,588 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 30 remaining) [2024-11-09 05:14:09,588 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 30 remaining) [2024-11-09 05:14:09,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-11-09 05:14:09,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef07afea-db54-4ae3-9a67-a771fc2a5b01/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:14:09,796 INFO L407 BasicCegarLoop]: Path program histogram: [8, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:14:09,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.