./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound100.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_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/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_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/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_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/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 b8588da8d66d82eb7aa3eaf3ef7c4d24b2b275bf9c1acdf38a110c8bc6eba3b7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:07:10,707 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:07:10,803 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 06:07:10,810 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:07:10,811 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:07:10,843 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:07:10,845 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:07:10,846 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:07:10,847 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:07:10,848 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:07:10,849 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:07:10,849 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:07:10,850 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:07:10,850 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:07:10,852 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:07:10,853 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:07:10,853 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:07:10,853 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:07:10,854 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:07:10,858 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:07:10,858 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:07:10,859 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:07:10,860 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:07:10,860 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:07:10,860 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:07:10,861 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:07:10,861 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:07:10,861 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:07:10,861 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:07:10,862 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:07:10,862 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:07:10,865 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:07:10,865 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 06:07:10,865 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:07:10,865 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:07:10,866 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:07:10,866 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:07:10,866 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:07:10,867 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:07:10,867 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:07:10,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:07:10,868 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:07:10,868 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:07:10,868 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:07:10,869 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:07:10,869 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:07:10,869 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:07:10,870 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:07:10,870 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:07:10,870 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_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8588da8d66d82eb7aa3eaf3ef7c4d24b2b275bf9c1acdf38a110c8bc6eba3b7 [2024-11-09 06:07:11,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:07:11,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:07:11,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:07:11,228 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:07:11,229 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:07:11,230 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound100.c Unable to find full path for "g++" [2024-11-09 06:07:13,223 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:07:13,454 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:07:13,454 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound100.c [2024-11-09 06:07:13,467 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/data/f22ca89e3/67345c99196943c8b5a1d1b3dd3365c8/FLAG375152f0d [2024-11-09 06:07:13,486 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/data/f22ca89e3/67345c99196943c8b5a1d1b3dd3365c8 [2024-11-09 06:07:13,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:07:13,493 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:07:13,495 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:07:13,497 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:07:13,502 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:07:13,503 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:07:13" (1/1) ... [2024-11-09 06:07:13,504 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58591afd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:13, skipping insertion in model container [2024-11-09 06:07:13,505 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:07:13" (1/1) ... [2024-11-09 06:07:13,529 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:07:13,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:07:13,823 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:07:13,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:07:13,873 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:07:13,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:13 WrapperNode [2024-11-09 06:07:13,873 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:07:13,874 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:07:13,874 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:07:13,874 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:07:13,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:13" (1/1) ... [2024-11-09 06:07:13,889 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:13" (1/1) ... [2024-11-09 06:07:13,918 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 143 [2024-11-09 06:07:13,919 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:07:13,919 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:07:13,920 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:07:13,920 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:07:13,932 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:13" (1/1) ... [2024-11-09 06:07:13,933 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:13" (1/1) ... [2024-11-09 06:07:13,935 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:13" (1/1) ... [2024-11-09 06:07:13,935 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:13" (1/1) ... [2024-11-09 06:07:13,940 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:13" (1/1) ... [2024-11-09 06:07:13,943 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:13" (1/1) ... [2024-11-09 06:07:13,945 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:13" (1/1) ... [2024-11-09 06:07:13,947 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:13" (1/1) ... [2024-11-09 06:07:13,949 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:07:13,950 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:07:13,950 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:07:13,950 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:07:13,951 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:13" (1/1) ... [2024-11-09 06:07:13,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:07:13,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:07:14,002 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:07:14,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:07:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:07:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:07:14,040 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:07:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:07:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:07:14,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:07:14,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 06:07:14,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 06:07:14,117 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:07:14,120 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:07:14,781 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2024-11-09 06:07:14,781 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:07:14,836 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:07:14,836 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:07:14,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:07:14 BoogieIcfgContainer [2024-11-09 06:07:14,837 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:07:14,840 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:07:14,840 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:07:14,847 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:07:14,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:07:13" (1/3) ... [2024-11-09 06:07:14,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79774d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:07:14, skipping insertion in model container [2024-11-09 06:07:14,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:13" (2/3) ... [2024-11-09 06:07:14,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79774d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:07:14, skipping insertion in model container [2024-11-09 06:07:14,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:07:14" (3/3) ... [2024-11-09 06:07:14,851 INFO L112 eAbstractionObserver]: Analyzing ICFG ps6-ll_valuebound100.c [2024-11-09 06:07:14,873 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:07:14,874 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 102 error locations. [2024-11-09 06:07:14,939 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:07:14,948 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;@138aea57, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:07:14,948 INFO L334 AbstractCegarLoop]: Starting to check reachability of 102 error locations. [2024-11-09 06:07:14,953 INFO L276 IsEmpty]: Start isEmpty. Operand has 219 states, 109 states have (on average 1.9541284403669725) internal successors, (213), 211 states have internal predecessors, (213), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 06:07:14,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 06:07:14,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:07:14,963 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:07:14,965 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-09 06:07:14,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:07:14,971 INFO L85 PathProgramCache]: Analyzing trace with hash -890388114, now seen corresponding path program 1 times [2024-11-09 06:07:14,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:07:14,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590841591] [2024-11-09 06:07:14,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:14,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:07:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:07:15,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:07:15,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:07:15,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590841591] [2024-11-09 06:07:15,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590841591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:07:15,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:07:15,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:07:15,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497894371] [2024-11-09 06:07:15,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:07:15,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:07:15,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:07:15,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:07:15,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:07:15,176 INFO L87 Difference]: Start difference. First operand has 219 states, 109 states have (on average 1.9541284403669725) internal successors, (213), 211 states have internal predecessors, (213), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:07:15,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:07:15,226 INFO L93 Difference]: Finished difference Result 305 states and 321 transitions. [2024-11-09 06:07:15,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:07:15,228 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 10 [2024-11-09 06:07:15,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:07:15,239 INFO L225 Difference]: With dead ends: 305 [2024-11-09 06:07:15,239 INFO L226 Difference]: Without dead ends: 191 [2024-11-09 06:07:15,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:07:15,247 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:07:15,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 193 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:07:15,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-09 06:07:15,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2024-11-09 06:07:15,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 108 states have (on average 1.712962962962963) internal successors, (185), 184 states have internal predecessors, (185), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:07:15,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 193 transitions. [2024-11-09 06:07:15,319 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 193 transitions. Word has length 10 [2024-11-09 06:07:15,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:07:15,323 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 193 transitions. [2024-11-09 06:07:15,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:07:15,324 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 193 transitions. [2024-11-09 06:07:15,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 06:07:15,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:07:15,326 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:07:15,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:07:15,327 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-09 06:07:15,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:07:15,330 INFO L85 PathProgramCache]: Analyzing trace with hash -890396326, now seen corresponding path program 1 times [2024-11-09 06:07:15,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:07:15,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492393142] [2024-11-09 06:07:15,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:15,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:07:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:07:15,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:07:15,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:07:15,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492393142] [2024-11-09 06:07:15,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492393142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:07:15,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:07:15,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:07:15,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386585268] [2024-11-09 06:07:15,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:07:15,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:07:15,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:07:15,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:07:15,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:07:15,406 INFO L87 Difference]: Start difference. First operand 191 states and 193 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:07:16,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:07:16,102 INFO L93 Difference]: Finished difference Result 352 states and 360 transitions. [2024-11-09 06:07:16,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:07:16,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 10 [2024-11-09 06:07:16,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:07:16,109 INFO L225 Difference]: With dead ends: 352 [2024-11-09 06:07:16,109 INFO L226 Difference]: Without dead ends: 288 [2024-11-09 06:07:16,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:07:16,115 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 98 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:07:16,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 124 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 06:07:16,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-09 06:07:16,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 282. [2024-11-09 06:07:16,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 198 states have (on average 1.4393939393939394) internal successors, (285), 274 states have internal predecessors, (285), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 06:07:16,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 295 transitions. [2024-11-09 06:07:16,168 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 295 transitions. Word has length 10 [2024-11-09 06:07:16,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:07:16,169 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 295 transitions. [2024-11-09 06:07:16,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:07:16,170 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 295 transitions. [2024-11-09 06:07:16,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-09 06:07:16,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:07:16,176 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:07:16,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:07:16,176 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-09 06:07:16,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:07:16,177 INFO L85 PathProgramCache]: Analyzing trace with hash -748884576, now seen corresponding path program 1 times [2024-11-09 06:07:16,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:07:16,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603020599] [2024-11-09 06:07:16,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:16,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:07:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:07:16,437 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:07:16,438 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:07:16,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603020599] [2024-11-09 06:07:16,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603020599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:07:16,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:07:16,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:07:16,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364349742] [2024-11-09 06:07:16,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:07:16,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:07:16,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:07:16,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:07:16,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:07:16,445 INFO L87 Difference]: Start difference. First operand 282 states and 295 transitions. Second operand has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:07:16,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:07:16,536 INFO L93 Difference]: Finished difference Result 306 states and 313 transitions. [2024-11-09 06:07:16,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:07:16,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2024-11-09 06:07:16,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:07:16,540 INFO L225 Difference]: With dead ends: 306 [2024-11-09 06:07:16,542 INFO L226 Difference]: Without dead ends: 299 [2024-11-09 06:07:16,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:07:16,544 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 68 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:07:16,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 346 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:07:16,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-09 06:07:16,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 281. [2024-11-09 06:07:16,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 197 states have (on average 1.4111675126903553) internal successors, (278), 273 states have internal predecessors, (278), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 06:07:16,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 288 transitions. [2024-11-09 06:07:16,565 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 288 transitions. Word has length 48 [2024-11-09 06:07:16,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:07:16,566 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 288 transitions. [2024-11-09 06:07:16,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:07:16,566 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 288 transitions. [2024-11-09 06:07:16,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-09 06:07:16,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:07:16,568 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:07:16,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:07:16,568 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-09 06:07:16,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:07:16,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1876432130, now seen corresponding path program 1 times [2024-11-09 06:07:16,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:07:16,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005612027] [2024-11-09 06:07:16,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:16,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:07:16,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:07:16,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:07:16,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:07:16,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005612027] [2024-11-09 06:07:16,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005612027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:07:16,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:07:16,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:07:16,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168041391] [2024-11-09 06:07:16,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:07:16,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:07:16,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:07:16,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:07:16,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:07:16,767 INFO L87 Difference]: Start difference. First operand 281 states and 288 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:07:17,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:07:17,043 INFO L93 Difference]: Finished difference Result 301 states and 306 transitions. [2024-11-09 06:07:17,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:07:17,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2024-11-09 06:07:17,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:07:17,046 INFO L225 Difference]: With dead ends: 301 [2024-11-09 06:07:17,046 INFO L226 Difference]: Without dead ends: 258 [2024-11-09 06:07:17,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:07:17,050 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 151 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:07:17,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 271 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:07:17,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-11-09 06:07:17,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 240. [2024-11-09 06:07:17,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 156 states have (on average 1.5064102564102564) internal successors, (235), 232 states have internal predecessors, (235), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 06:07:17,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 245 transitions. [2024-11-09 06:07:17,077 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 245 transitions. Word has length 50 [2024-11-09 06:07:17,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:07:17,077 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 245 transitions. [2024-11-09 06:07:17,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:07:17,078 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 245 transitions. [2024-11-09 06:07:17,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 06:07:17,083 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:07:17,083 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:07:17,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:07:17,084 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-09 06:07:17,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:07:17,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1670554165, now seen corresponding path program 1 times [2024-11-09 06:07:17,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:07:17,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600115] [2024-11-09 06:07:17,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:17,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:07:17,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:07:17,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:07:17,172 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:07:17,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600115] [2024-11-09 06:07:17,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:07:17,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:07:17,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:07:17,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266992303] [2024-11-09 06:07:17,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:07:17,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:07:17,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:07:17,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:07:17,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:07:17,176 INFO L87 Difference]: Start difference. First operand 240 states and 245 transitions. Second operand has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 06:07:17,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:07:17,203 INFO L93 Difference]: Finished difference Result 242 states and 245 transitions. [2024-11-09 06:07:17,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:07:17,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2024-11-09 06:07:17,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:07:17,205 INFO L225 Difference]: With dead ends: 242 [2024-11-09 06:07:17,207 INFO L226 Difference]: Without dead ends: 240 [2024-11-09 06:07:17,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:07:17,209 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 1 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:07:17,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 370 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:07:17,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-11-09 06:07:17,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2024-11-09 06:07:17,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 156 states have (on average 1.4935897435897436) internal successors, (233), 232 states have internal predecessors, (233), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 06:07:17,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 243 transitions. [2024-11-09 06:07:17,228 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 243 transitions. Word has length 56 [2024-11-09 06:07:17,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:07:17,228 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 243 transitions. [2024-11-09 06:07:17,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 06:07:17,229 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 243 transitions. [2024-11-09 06:07:17,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 06:07:17,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:07:17,230 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:07:17,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:07:17,231 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-09 06:07:17,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:07:17,232 INFO L85 PathProgramCache]: Analyzing trace with hash -620798536, now seen corresponding path program 1 times [2024-11-09 06:07:17,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:07:17,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817481408] [2024-11-09 06:07:17,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:17,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:07:17,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:07:17,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [653816020] [2024-11-09 06:07:17,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:17,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:07:17,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:07:17,265 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:07:17,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:07:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:07:17,357 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:07:17,384 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:07:17,568 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:07:17,569 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:07:17,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:07:17,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817481408] [2024-11-09 06:07:17,570 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:07:17,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653816020] [2024-11-09 06:07:17,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653816020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:07:17,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:07:17,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:07:17,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61535287] [2024-11-09 06:07:17,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:07:17,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:07:17,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:07:17,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:07:17,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:07:17,577 INFO L87 Difference]: Start difference. First operand 240 states and 243 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 06:07:18,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:07:18,225 INFO L93 Difference]: Finished difference Result 415 states and 428 transitions. [2024-11-09 06:07:18,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:07:18,226 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 61 [2024-11-09 06:07:18,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:07:18,228 INFO L225 Difference]: With dead ends: 415 [2024-11-09 06:07:18,228 INFO L226 Difference]: Without dead ends: 350 [2024-11-09 06:07:18,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:07:18,230 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 108 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:07:18,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 140 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 06:07:18,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-09 06:07:18,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 344. [2024-11-09 06:07:18,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 258 states have (on average 1.3527131782945736) internal successors, (349), 334 states have internal predecessors, (349), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 06:07:18,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 363 transitions. [2024-11-09 06:07:18,247 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 363 transitions. Word has length 61 [2024-11-09 06:07:18,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:07:18,247 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 363 transitions. [2024-11-09 06:07:18,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 06:07:18,248 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 363 transitions. [2024-11-09 06:07:18,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 06:07:18,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:07:18,250 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:07:18,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 06:07:18,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:07:18,451 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-09 06:07:18,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:07:18,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1985225089, now seen corresponding path program 1 times [2024-11-09 06:07:18,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:07:18,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633592886] [2024-11-09 06:07:18,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:18,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:07:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:07:18,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:07:18,610 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:07:18,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633592886] [2024-11-09 06:07:18,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633592886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:07:18,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:07:18,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:07:18,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723559274] [2024-11-09 06:07:18,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:07:18,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:07:18,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:07:18,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:07:18,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:07:18,613 INFO L87 Difference]: Start difference. First operand 344 states and 363 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 06:07:21,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:07:21,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:07:21,111 INFO L93 Difference]: Finished difference Result 345 states and 363 transitions. [2024-11-09 06:07:21,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:07:21,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 68 [2024-11-09 06:07:21,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:07:21,113 INFO L225 Difference]: With dead ends: 345 [2024-11-09 06:07:21,113 INFO L226 Difference]: Without dead ends: 344 [2024-11-09 06:07:21,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:07:21,115 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 54 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:07:21,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 319 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 257 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2024-11-09 06:07:21,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-11-09 06:07:21,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2024-11-09 06:07:21,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 258 states have (on average 1.3488372093023255) internal successors, (348), 334 states have internal predecessors, (348), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 06:07:21,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 362 transitions. [2024-11-09 06:07:21,128 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 362 transitions. Word has length 68 [2024-11-09 06:07:21,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:07:21,130 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 362 transitions. [2024-11-09 06:07:21,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 06:07:21,131 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 362 transitions. [2024-11-09 06:07:21,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 06:07:21,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:07:21,133 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:07:21,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:07:21,134 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-09 06:07:21,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:07:21,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1412435776, now seen corresponding path program 1 times [2024-11-09 06:07:21,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:07:21,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739554042] [2024-11-09 06:07:21,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:21,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:07:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:07:21,288 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:07:21,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:07:21,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739554042] [2024-11-09 06:07:21,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739554042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:07:21,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:07:21,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:07:21,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250997111] [2024-11-09 06:07:21,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:07:21,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:07:21,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:07:21,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:07:21,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:07:21,293 INFO L87 Difference]: Start difference. First operand 344 states and 362 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 06:07:21,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:07:21,734 INFO L93 Difference]: Finished difference Result 345 states and 362 transitions. [2024-11-09 06:07:21,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:07:21,735 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 69 [2024-11-09 06:07:21,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:07:21,736 INFO L225 Difference]: With dead ends: 345 [2024-11-09 06:07:21,737 INFO L226 Difference]: Without dead ends: 344 [2024-11-09 06:07:21,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:07:21,739 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 47 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:07:21,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 328 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:07:21,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-11-09 06:07:21,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2024-11-09 06:07:21,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 258 states have (on average 1.3449612403100775) internal successors, (347), 334 states have internal predecessors, (347), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 06:07:21,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 361 transitions. [2024-11-09 06:07:21,751 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 361 transitions. Word has length 69 [2024-11-09 06:07:21,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:07:21,752 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 361 transitions. [2024-11-09 06:07:21,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 06:07:21,752 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 361 transitions. [2024-11-09 06:07:21,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 06:07:21,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:07:21,754 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:07:21,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 06:07:21,754 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-09 06:07:21,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:07:21,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1112267496, now seen corresponding path program 1 times [2024-11-09 06:07:21,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:07:21,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938436711] [2024-11-09 06:07:21,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:21,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:07:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:07:21,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [280553771] [2024-11-09 06:07:21,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:21,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:07:21,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:07:21,786 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:07:21,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:07:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:07:21,855 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:07:21,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:07:22,244 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:07:22,245 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:07:22,643 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:07:22,643 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:07:22,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938436711] [2024-11-09 06:07:22,644 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:07:22,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280553771] [2024-11-09 06:07:22,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280553771] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:07:22,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [582338230] [2024-11-09 06:07:22,668 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2024-11-09 06:07:22,669 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:07:22,672 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:07:22,678 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:07:22,678 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:07:27,599 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 72 for LOIs [2024-11-09 06:07:27,643 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 55 for LOIs [2024-11-09 06:07:27,656 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:07:35,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [582338230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:07:35,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:07:35,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [4, 4] total 25 [2024-11-09 06:07:35,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755675158] [2024-11-09 06:07:35,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:07:35,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-09 06:07:35,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:07:35,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 06:07:35,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=510, Unknown=0, NotChecked=0, Total=650 [2024-11-09 06:07:35,632 INFO L87 Difference]: Start difference. First operand 344 states and 361 transitions. Second operand has 20 states, 16 states have (on average 3.9375) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 06:07:37,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:07:37,878 INFO L93 Difference]: Finished difference Result 346 states and 363 transitions. [2024-11-09 06:07:37,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 06:07:37,879 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 16 states have (on average 3.9375) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 109 [2024-11-09 06:07:37,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:07:37,880 INFO L225 Difference]: With dead ends: 346 [2024-11-09 06:07:37,880 INFO L226 Difference]: Without dead ends: 304 [2024-11-09 06:07:37,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 227 SyntacticMatches, 74 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1234 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=218, Invalid=712, Unknown=0, NotChecked=0, Total=930 [2024-11-09 06:07:37,881 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 377 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:07:37,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 317 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 06:07:37,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-11-09 06:07:37,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 298. [2024-11-09 06:07:37,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 254 states have (on average 1.1614173228346456) internal successors, (295), 288 states have internal predecessors, (295), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 06:07:37,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 309 transitions. [2024-11-09 06:07:37,898 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 309 transitions. Word has length 109 [2024-11-09 06:07:37,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:07:37,898 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 309 transitions. [2024-11-09 06:07:37,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 16 states have (on average 3.9375) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 06:07:37,898 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 309 transitions. [2024-11-09 06:07:37,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-09 06:07:37,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:07:37,900 INFO L215 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:07:37,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 06:07:38,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:07:38,105 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-09 06:07:38,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:07:38,105 INFO L85 PathProgramCache]: Analyzing trace with hash 2033776528, now seen corresponding path program 1 times [2024-11-09 06:07:38,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:07:38,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936400836] [2024-11-09 06:07:38,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:38,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:07:38,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:07:38,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [376598719] [2024-11-09 06:07:38,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:38,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:07:38,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:07:38,187 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:07:38,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 06:07:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:07:38,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:07:38,287 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:07:38,494 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 107 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:07:38,494 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:07:39,081 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 107 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:07:39,081 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:07:39,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936400836] [2024-11-09 06:07:39,081 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:07:39,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376598719] [2024-11-09 06:07:39,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376598719] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:07:39,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1658367361] [2024-11-09 06:07:39,085 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2024-11-09 06:07:39,085 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:07:39,086 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:07:39,086 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:07:39,086 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:07:41,620 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 72 for LOIs [2024-11-09 06:07:41,638 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 55 for LOIs [2024-11-09 06:07:41,650 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:07:55,572 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7788#(and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 100) (<= 0 |ULTIMATE.start_main_~c~0#1|) (exists ((|v_ULTIMATE.start_main_~y~0#1_227| Int)) (and (<= 4611686018427387905 (+ (* 3 (* |v_ULTIMATE.start_main_~y~0#1_227| |v_ULTIMATE.start_main_~y~0#1_227| |v_ULTIMATE.start_main_~y~0#1_227| |v_ULTIMATE.start_main_~y~0#1_227| |v_ULTIMATE.start_main_~y~0#1_227|)) (* |v_ULTIMATE.start_main_~y~0#1_227| |v_ULTIMATE.start_main_~y~0#1_227| |v_ULTIMATE.start_main_~y~0#1_227| |v_ULTIMATE.start_main_~y~0#1_227| |v_ULTIMATE.start_main_~y~0#1_227| |v_ULTIMATE.start_main_~y~0#1_227|))) (<= (* |v_ULTIMATE.start_main_~y~0#1_227| |v_ULTIMATE.start_main_~y~0#1_227| |v_ULTIMATE.start_main_~y~0#1_227| |v_ULTIMATE.start_main_~y~0#1_227| |v_ULTIMATE.start_main_~y~0#1_227| |v_ULTIMATE.start_main_~y~0#1_227|) 4611686018427387904))))' at error location [2024-11-09 06:07:55,573 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:07:55,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:07:55,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-09 06:07:55,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419043209] [2024-11-09 06:07:55,573 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 06:07:55,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:07:55,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:07:55,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:07:55,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2024-11-09 06:07:55,575 INFO L87 Difference]: Start difference. First operand 298 states and 309 transitions. Second operand has 8 states, 7 states have (on average 40.714285714285715) internal successors, (285), 8 states have internal predecessors, (285), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-09 06:07:58,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:08:01,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:08:03,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:08:03,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:03,550 INFO L93 Difference]: Finished difference Result 663 states and 777 transitions. [2024-11-09 06:08:03,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:08:03,550 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 40.714285714285715) internal successors, (285), 8 states have internal predecessors, (285), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 154 [2024-11-09 06:08:03,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:03,554 INFO L225 Difference]: With dead ends: 663 [2024-11-09 06:08:03,554 INFO L226 Difference]: Without dead ends: 626 [2024-11-09 06:08:03,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 333 SyntacticMatches, 102 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1716 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=140, Invalid=672, Unknown=0, NotChecked=0, Total=812 [2024-11-09 06:08:03,555 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 626 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 124 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:03,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 168 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 1001 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2024-11-09 06:08:03,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2024-11-09 06:08:03,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 438. [2024-11-09 06:08:03,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 420 states have (on average 1.026190476190476) internal successors, (431), 426 states have internal predecessors, (431), 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 06:08:03,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 449 transitions. [2024-11-09 06:08:03,585 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 449 transitions. Word has length 154 [2024-11-09 06:08:03,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:03,585 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 449 transitions. [2024-11-09 06:08:03,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 40.714285714285715) internal successors, (285), 8 states have internal predecessors, (285), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-09 06:08:03,586 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 449 transitions. [2024-11-09 06:08:03,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-09 06:08:03,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:03,588 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:03,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 06:08:03,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 06:08:03,789 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr94ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-09 06:08:03,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:03,789 INFO L85 PathProgramCache]: Analyzing trace with hash 483424260, now seen corresponding path program 1 times [2024-11-09 06:08:03,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:03,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161734906] [2024-11-09 06:08:03,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:03,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:03,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:03,889 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-09 06:08:03,889 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:03,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161734906] [2024-11-09 06:08:03,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161734906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:03,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:03,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:08:03,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676675347] [2024-11-09 06:08:03,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:03,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:08:03,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:03,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:08:03,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:08:03,892 INFO L87 Difference]: Start difference. First operand 438 states and 449 transitions. Second operand has 3 states, 2 states have (on average 53.0) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 06:08:03,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:03,946 INFO L93 Difference]: Finished difference Result 438 states and 449 transitions. [2024-11-09 06:08:03,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:08:03,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 53.0) internal successors, (106), 3 states have internal predecessors, (106), 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 155 [2024-11-09 06:08:03,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:03,948 INFO L225 Difference]: With dead ends: 438 [2024-11-09 06:08:03,948 INFO L226 Difference]: Without dead ends: 437 [2024-11-09 06:08:03,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:08:03,949 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 60 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:03,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 150 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:08:03,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-09 06:08:03,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2024-11-09 06:08:03,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 420 states have (on average 1.0238095238095237) internal successors, (430), 425 states have internal predecessors, (430), 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 06:08:03,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 448 transitions. [2024-11-09 06:08:03,978 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 448 transitions. Word has length 155 [2024-11-09 06:08:03,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:03,978 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 448 transitions. [2024-11-09 06:08:03,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 53.0) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 06:08:03,979 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 448 transitions. [2024-11-09 06:08:03,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-09 06:08:03,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:03,981 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:03,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 06:08:03,981 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr95ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-09 06:08:03,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:03,984 INFO L85 PathProgramCache]: Analyzing trace with hash 2101250416, now seen corresponding path program 1 times [2024-11-09 06:08:03,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:03,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772347293] [2024-11-09 06:08:03,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:03,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:04,075 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-09 06:08:04,075 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:04,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772347293] [2024-11-09 06:08:04,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772347293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:04,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:04,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:08:04,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520247498] [2024-11-09 06:08:04,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:04,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:08:04,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:04,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:08:04,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:08:04,077 INFO L87 Difference]: Start difference. First operand 437 states and 448 transitions. Second operand has 3 states, 2 states have (on average 53.0) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 06:08:04,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:04,131 INFO L93 Difference]: Finished difference Result 437 states and 448 transitions. [2024-11-09 06:08:04,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:08:04,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 53.0) internal successors, (106), 3 states have internal predecessors, (106), 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 156 [2024-11-09 06:08:04,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:04,134 INFO L225 Difference]: With dead ends: 437 [2024-11-09 06:08:04,134 INFO L226 Difference]: Without dead ends: 435 [2024-11-09 06:08:04,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:08:04,136 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 60 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:04,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 150 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:08:04,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2024-11-09 06:08:04,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 435. [2024-11-09 06:08:04,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 420 states have (on average 1.019047619047619) internal successors, (428), 423 states have internal predecessors, (428), 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 06:08:04,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 446 transitions. [2024-11-09 06:08:04,162 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 446 transitions. Word has length 156 [2024-11-09 06:08:04,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:04,162 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 446 transitions. [2024-11-09 06:08:04,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 53.0) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 06:08:04,163 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 446 transitions. [2024-11-09 06:08:04,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-09 06:08:04,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:04,164 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:04,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 06:08:04,165 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr96ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-09 06:08:04,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:04,165 INFO L85 PathProgramCache]: Analyzing trace with hash 714253702, now seen corresponding path program 1 times [2024-11-09 06:08:04,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:04,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023979823] [2024-11-09 06:08:04,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:04,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:04,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:04,277 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-09 06:08:04,277 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:04,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023979823] [2024-11-09 06:08:04,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023979823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:04,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:04,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:08:04,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736809343] [2024-11-09 06:08:04,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:04,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:08:04,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:04,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:08:04,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:08:04,283 INFO L87 Difference]: Start difference. First operand 435 states and 446 transitions. Second operand has 3 states, 2 states have (on average 53.0) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 06:08:04,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:04,671 INFO L93 Difference]: Finished difference Result 435 states and 446 transitions. [2024-11-09 06:08:04,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:08:04,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 53.0) internal successors, (106), 3 states have internal predecessors, (106), 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 157 [2024-11-09 06:08:04,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:04,673 INFO L225 Difference]: With dead ends: 435 [2024-11-09 06:08:04,674 INFO L226 Difference]: Without dead ends: 434 [2024-11-09 06:08:04,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:08:04,675 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 48 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:04,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 32 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:08:04,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2024-11-09 06:08:04,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2024-11-09 06:08:04,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 420 states have (on average 1.0166666666666666) internal successors, (427), 422 states have internal predecessors, (427), 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 06:08:04,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 445 transitions. [2024-11-09 06:08:04,705 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 445 transitions. Word has length 157 [2024-11-09 06:08:04,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:04,706 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 445 transitions. [2024-11-09 06:08:04,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 53.0) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 06:08:04,707 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 445 transitions. [2024-11-09 06:08:04,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-09 06:08:04,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:04,712 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:04,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 06:08:04,712 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr98ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-09 06:08:04,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:04,713 INFO L85 PathProgramCache]: Analyzing trace with hash 589600761, now seen corresponding path program 1 times [2024-11-09 06:08:04,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:04,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769126531] [2024-11-09 06:08:04,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:04,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:04,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:08:04,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1050365285] [2024-11-09 06:08:04,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:04,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:08:04,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:08:04,752 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:08:04,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 06:08:04,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:04,834 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:08:04,837 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:08:05,349 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 06:08:05,350 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:08:05,680 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:05,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769126531] [2024-11-09 06:08:05,680 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:08:05,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050365285] [2024-11-09 06:08:05,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050365285] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:08:05,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [54745753] [2024-11-09 06:08:05,684 INFO L159 IcfgInterpreter]: Started Sifa with 112 locations of interest [2024-11-09 06:08:05,685 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:08:05,685 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:08:05,685 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:08:05,685 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:08:08,516 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 120 for LOIs [2024-11-09 06:08:08,574 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 55 for LOIs [2024-11-09 06:08:08,587 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:08:23,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [54745753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:23,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:08:23,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [4] total 21 [2024-11-09 06:08:23,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952810802] [2024-11-09 06:08:23,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:23,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 06:08:23,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:23,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 06:08:23,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=462, Unknown=0, NotChecked=0, Total=600 [2024-11-09 06:08:23,480 INFO L87 Difference]: Start difference. First operand 434 states and 445 transitions. Second operand has 19 states, 15 states have (on average 7.066666666666666) internal successors, (106), 14 states have internal predecessors, (106), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:08:25,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:25,718 INFO L93 Difference]: Finished difference Result 435 states and 446 transitions. [2024-11-09 06:08:25,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 06:08:25,719 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 15 states have (on average 7.066666666666666) internal successors, (106), 14 states have internal predecessors, (106), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 162 [2024-11-09 06:08:25,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:25,722 INFO L225 Difference]: With dead ends: 435 [2024-11-09 06:08:25,722 INFO L226 Difference]: Without dead ends: 388 [2024-11-09 06:08:25,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 327 SyntacticMatches, 82 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 15.4s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2024-11-09 06:08:25,723 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 296 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:25,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 15 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 06:08:25,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-09 06:08:25,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 387. [2024-11-09 06:08:25,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 376 states have (on average 1.002659574468085) internal successors, (377), 376 states have internal predecessors, (377), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:08:25,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 393 transitions. [2024-11-09 06:08:25,755 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 393 transitions. Word has length 162 [2024-11-09 06:08:25,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:25,755 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 393 transitions. [2024-11-09 06:08:25,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 15 states have (on average 7.066666666666666) internal successors, (106), 14 states have internal predecessors, (106), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:08:25,756 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 393 transitions. [2024-11-09 06:08:25,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2024-11-09 06:08:25,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:25,762 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:25,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 06:08:25,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-09 06:08:25,964 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-09 06:08:25,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:25,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1020346768, now seen corresponding path program 2 times [2024-11-09 06:08:25,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:25,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393033044] [2024-11-09 06:08:25,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:25,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:08:26,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [5241405] [2024-11-09 06:08:26,050 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:08:26,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:08:26,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:08:26,052 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:08:26,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 06:08:26,357 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-09 06:08:26,357 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:08:26,359 INFO L255 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 06:08:26,365 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:08:26,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1061 backedges. 0 proven. 1029 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-09 06:08:26,932 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:08:28,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1061 backedges. 0 proven. 1029 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-09 06:08:28,667 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:28,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393033044] [2024-11-09 06:08:28,667 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:08:28,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5241405] [2024-11-09 06:08:28,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5241405] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:08:28,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1149753347] [2024-11-09 06:08:28,670 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2024-11-09 06:08:28,670 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:08:28,671 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:08:28,671 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:08:28,671 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:08:30,683 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 72 for LOIs [2024-11-09 06:08:30,700 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 55 for LOIs [2024-11-09 06:08:30,707 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:09:10,763 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '15808#(and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 100) (exists ((|v_ULTIMATE.start_main_~y~0#1_252| Int)) (and (<= (* |v_ULTIMATE.start_main_~y~0#1_252| |v_ULTIMATE.start_main_~y~0#1_252| |v_ULTIMATE.start_main_~y~0#1_252| |v_ULTIMATE.start_main_~y~0#1_252| |v_ULTIMATE.start_main_~y~0#1_252| |v_ULTIMATE.start_main_~y~0#1_252|) 4611686018427387904) (<= 4611686018427387905 (+ (* (* |v_ULTIMATE.start_main_~y~0#1_252| |v_ULTIMATE.start_main_~y~0#1_252| |v_ULTIMATE.start_main_~y~0#1_252| |v_ULTIMATE.start_main_~y~0#1_252| |v_ULTIMATE.start_main_~y~0#1_252|) 3) (* |v_ULTIMATE.start_main_~y~0#1_252| |v_ULTIMATE.start_main_~y~0#1_252| |v_ULTIMATE.start_main_~y~0#1_252| |v_ULTIMATE.start_main_~y~0#1_252| |v_ULTIMATE.start_main_~y~0#1_252| |v_ULTIMATE.start_main_~y~0#1_252|))))) (<= 0 |ULTIMATE.start_main_~c~0#1|))' at error location [2024-11-09 06:09:10,763 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:09:10,764 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:09:10,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-09 06:09:10,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327288413] [2024-11-09 06:09:10,764 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 06:09:10,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 06:09:10,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:09:10,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 06:09:10,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1010, Unknown=0, NotChecked=0, Total=1190 [2024-11-09 06:09:10,768 INFO L87 Difference]: Start difference. First operand 387 states and 393 transitions. Second operand has 16 states, 15 states have (on average 49.93333333333333) internal successors, (749), 16 states have internal predecessors, (749), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-09 06:09:14,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:09:14,631 INFO L93 Difference]: Finished difference Result 860 states and 881 transitions. [2024-11-09 06:09:14,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 06:09:14,632 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 49.93333333333333) internal successors, (749), 16 states have internal predecessors, (749), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 398 [2024-11-09 06:09:14,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:09:14,636 INFO L225 Difference]: With dead ends: 860 [2024-11-09 06:09:14,636 INFO L226 Difference]: Without dead ends: 859 [2024-11-09 06:09:14,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1198 GetRequests, 885 SyntacticMatches, 274 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6042 ImplicationChecksByTransitivity, 41.4s TimeCoverageRelationStatistics Valid=276, Invalid=1364, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 06:09:14,638 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 202 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 2925 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 2933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:09:14,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 472 Invalid, 2933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2925 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-09 06:09:14,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2024-11-09 06:09:14,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 859. [2024-11-09 06:09:14,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 840 states have (on average 1.0011904761904762) internal successors, (841), 840 states have internal predecessors, (841), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 06:09:14,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 873 transitions. [2024-11-09 06:09:14,692 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 873 transitions. Word has length 398 [2024-11-09 06:09:14,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:09:14,693 INFO L471 AbstractCegarLoop]: Abstraction has 859 states and 873 transitions. [2024-11-09 06:09:14,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 49.93333333333333) internal successors, (749), 16 states have internal predecessors, (749), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-09 06:09:14,693 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 873 transitions. [2024-11-09 06:09:14,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 887 [2024-11-09 06:09:14,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:09:14,724 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:09:14,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 06:09:14,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-09 06:09:14,928 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-09 06:09:14,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:09:14,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1923011984, now seen corresponding path program 3 times [2024-11-09 06:09:14,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:09:14,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87923754] [2024-11-09 06:09:14,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:09:14,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:09:15,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:09:15,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2075558629] [2024-11-09 06:09:15,150 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 06:09:15,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:09:15,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:09:15,152 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:09:15,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 06:09:15,413 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 06:09:15,413 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:09:15,416 INFO L255 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-09 06:09:15,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:09:16,534 INFO L134 CoverageAnalysis]: Checked inductivity of 5889 backedges. 0 proven. 5705 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-09 06:09:16,535 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:09:20,781 INFO L134 CoverageAnalysis]: Checked inductivity of 5889 backedges. 0 proven. 5705 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-09 06:09:20,781 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:09:20,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87923754] [2024-11-09 06:09:20,781 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:09:20,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075558629] [2024-11-09 06:09:20,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075558629] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:09:20,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [158708013] [2024-11-09 06:09:20,789 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2024-11-09 06:09:20,789 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:09:20,789 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:09:20,789 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:09:20,789 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:09:22,999 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 72 for LOIs [2024-11-09 06:09:23,032 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 55 for LOIs [2024-11-09 06:09:23,045 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:11:33,605 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22970#(and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 100) (exists ((|v_ULTIMATE.start_main_~y~0#1_286| Int)) (and (<= 4611686018427387905 (+ (* (* |v_ULTIMATE.start_main_~y~0#1_286| |v_ULTIMATE.start_main_~y~0#1_286| |v_ULTIMATE.start_main_~y~0#1_286| |v_ULTIMATE.start_main_~y~0#1_286| |v_ULTIMATE.start_main_~y~0#1_286|) 3) (* |v_ULTIMATE.start_main_~y~0#1_286| |v_ULTIMATE.start_main_~y~0#1_286| |v_ULTIMATE.start_main_~y~0#1_286| |v_ULTIMATE.start_main_~y~0#1_286| |v_ULTIMATE.start_main_~y~0#1_286| |v_ULTIMATE.start_main_~y~0#1_286|))) (<= (* |v_ULTIMATE.start_main_~y~0#1_286| |v_ULTIMATE.start_main_~y~0#1_286| |v_ULTIMATE.start_main_~y~0#1_286| |v_ULTIMATE.start_main_~y~0#1_286| |v_ULTIMATE.start_main_~y~0#1_286| |v_ULTIMATE.start_main_~y~0#1_286|) 4611686018427387904))) (<= 0 |ULTIMATE.start_main_~c~0#1|))' at error location [2024-11-09 06:11:33,605 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:11:33,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:11:33,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2024-11-09 06:11:33,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384351021] [2024-11-09 06:11:33,606 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 06:11:33,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-09 06:11:33,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:11:33,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-09 06:11:33,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=2348, Unknown=2, NotChecked=0, Total=2756 [2024-11-09 06:11:33,611 INFO L87 Difference]: Start difference. First operand 859 states and 873 transitions. Second operand has 32 states, 31 states have (on average 54.096774193548384) internal successors, (1677), 32 states have internal predecessors, (1677), 29 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) [2024-11-09 06:11:56,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:11:56,845 INFO L93 Difference]: Finished difference Result 1804 states and 1849 transitions. [2024-11-09 06:11:56,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-09 06:11:56,846 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 54.096774193548384) internal successors, (1677), 32 states have internal predecessors, (1677), 29 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) Word has length 886 [2024-11-09 06:11:56,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:11:56,853 INFO L225 Difference]: With dead ends: 1804 [2024-11-09 06:11:56,853 INFO L226 Difference]: Without dead ends: 1803 [2024-11-09 06:11:56,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2670 GetRequests, 2009 SyntacticMatches, 596 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19541 ImplicationChecksByTransitivity, 147.3s TimeCoverageRelationStatistics Valid=854, Invalid=3566, Unknown=2, NotChecked=0, Total=4422 [2024-11-09 06:11:56,855 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 394 mSDsluCounter, 1630 mSDsCounter, 0 mSdLazyCounter, 12613 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 12629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 12613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:11:56,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 1756 Invalid, 12629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 12613 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2024-11-09 06:11:56,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1803 states. [2024-11-09 06:11:56,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 1803. [2024-11-09 06:11:56,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1803 states, 1768 states have (on average 1.0005656108597285) internal successors, (1769), 1768 states have internal predecessors, (1769), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-09 06:11:56,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 1833 transitions. [2024-11-09 06:11:56,962 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 1833 transitions. Word has length 886 [2024-11-09 06:11:56,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:11:56,964 INFO L471 AbstractCegarLoop]: Abstraction has 1803 states and 1833 transitions. [2024-11-09 06:11:56,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 54.096774193548384) internal successors, (1677), 32 states have internal predecessors, (1677), 29 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) [2024-11-09 06:11:56,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 1833 transitions. [2024-11-09 06:11:57,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1863 [2024-11-09 06:11:57,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:11:57,016 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:11:57,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 06:11:57,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 06:11:57,217 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-09 06:11:57,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:11:57,218 INFO L85 PathProgramCache]: Analyzing trace with hash -827458160, now seen corresponding path program 4 times [2024-11-09 06:11:57,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:11:57,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665337366] [2024-11-09 06:11:57,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:11:57,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:11:57,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:11:57,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1589815464] [2024-11-09 06:11:57,582 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 06:11:57,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:11:57,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:11:57,583 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:11:57,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55ef1d6-d7f1-44c7-b728-82c7454a3cfa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 06:11:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:11:58,071 INFO L255 TraceCheckSpWp]: Trace formula consists of 2165 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-09 06:11:58,093 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:12:00,866 INFO L134 CoverageAnalysis]: Checked inductivity of 27257 backedges. 0 proven. 26385 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2024-11-09 06:12:00,867 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:12:12,998 INFO L134 CoverageAnalysis]: Checked inductivity of 27257 backedges. 0 proven. 26385 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2024-11-09 06:12:12,998 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:12:12,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665337366] [2024-11-09 06:12:12,998 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:12:12,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589815464] [2024-11-09 06:12:12,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589815464] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:12:12,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1104609544] [2024-11-09 06:12:13,001 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2024-11-09 06:12:13,002 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:12:13,002 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:12:13,002 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:12:13,002 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:12:15,383 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 72 for LOIs [2024-11-09 06:12:15,411 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 55 for LOIs [2024-11-09 06:12:15,423 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:19:10,163 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '37990#(and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 100) (exists ((|v_ULTIMATE.start_main_~y~0#1_352| Int)) (and (<= (* |v_ULTIMATE.start_main_~y~0#1_352| |v_ULTIMATE.start_main_~y~0#1_352| |v_ULTIMATE.start_main_~y~0#1_352| |v_ULTIMATE.start_main_~y~0#1_352| |v_ULTIMATE.start_main_~y~0#1_352| |v_ULTIMATE.start_main_~y~0#1_352|) 4611686018427387904) (<= 4611686018427387905 (+ (* (* |v_ULTIMATE.start_main_~y~0#1_352| |v_ULTIMATE.start_main_~y~0#1_352| |v_ULTIMATE.start_main_~y~0#1_352| |v_ULTIMATE.start_main_~y~0#1_352| |v_ULTIMATE.start_main_~y~0#1_352|) 3) (* |v_ULTIMATE.start_main_~y~0#1_352| |v_ULTIMATE.start_main_~y~0#1_352| |v_ULTIMATE.start_main_~y~0#1_352| |v_ULTIMATE.start_main_~y~0#1_352| |v_ULTIMATE.start_main_~y~0#1_352| |v_ULTIMATE.start_main_~y~0#1_352|))))) (<= 0 |ULTIMATE.start_main_~c~0#1|))' at error location [2024-11-09 06:19:10,163 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:19:10,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:19:10,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 63 [2024-11-09 06:19:10,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102916680] [2024-11-09 06:19:10,165 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 06:19:10,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-11-09 06:19:10,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:19:10,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-11-09 06:19:10,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1188, Invalid=5618, Unknown=0, NotChecked=0, Total=6806 [2024-11-09 06:19:10,176 INFO L87 Difference]: Start difference. First operand 1803 states and 1833 transitions. Second operand has 64 states, 63 states have (on average 56.07936507936508) internal successors, (3533), 64 states have internal predecessors, (3533), 61 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 61 states have call predecessors, (62), 61 states have call successors, (62) [2024-11-09 06:19:35,310 WARN L286 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 400 DAG size of output: 38 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:20:10,785 WARN L286 SmtUtils]: Spent 6.37s on a formula simplification. DAG size of input: 348 DAG size of output: 51 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:20:24,290 WARN L286 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 335 DAG size of output: 38 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)