./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/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_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/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_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/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 6d1ee9b66acccde8e4802bcc3b75479d1ab3cc8ee3ff178f121f64cc868a595d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:05:51,674 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:05:51,782 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 01:05:51,790 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:05:51,794 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:05:51,834 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:05:51,836 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:05:51,837 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:05:51,838 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:05:51,840 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:05:51,841 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:05:51,842 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:05:51,842 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:05:51,842 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:05:51,846 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:05:51,847 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:05:51,847 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:05:51,847 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:05:51,848 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:05:51,848 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:05:51,848 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:05:51,852 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:05:51,853 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:05:51,853 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:05:51,853 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:05:51,853 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:05:51,854 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:05:51,854 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:05:51,854 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:05:51,854 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:05:51,855 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:05:51,855 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:05:51,855 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 01:05:51,855 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 01:05:51,857 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:05:51,858 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:05:51,858 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:05:51,859 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:05:51,859 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:05:51,860 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:05:51,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:05:51,861 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:05:51,861 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:05:51,861 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:05:51,862 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:05:51,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:05:51,863 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:05:51,863 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:05:51,863 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:05:51,863 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_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d1ee9b66acccde8e4802bcc3b75479d1ab3cc8ee3ff178f121f64cc868a595d [2024-11-09 01:05:52,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:05:52,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:05:52,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:05:52,183 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:05:52,184 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:05:52,185 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound100.c Unable to find full path for "g++" [2024-11-09 01:05:54,333 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:05:54,549 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:05:54,550 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound100.c [2024-11-09 01:05:54,559 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/data/9152a330d/40906caa00f848bdaaee1a9fa1f0b98d/FLAGa95453e22 [2024-11-09 01:05:54,905 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/data/9152a330d/40906caa00f848bdaaee1a9fa1f0b98d [2024-11-09 01:05:54,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:05:54,909 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:05:54,910 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:05:54,910 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:05:54,915 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:05:54,916 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:05:54" (1/1) ... [2024-11-09 01:05:54,917 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bd6010a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:54, skipping insertion in model container [2024-11-09 01:05:54,918 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:05:54" (1/1) ... [2024-11-09 01:05:54,948 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:05:55,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:05:55,144 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:05:55,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:05:55,177 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:05:55,177 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:55 WrapperNode [2024-11-09 01:05:55,178 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:05:55,179 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:05:55,179 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:05:55,179 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:05:55,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:55" (1/1) ... [2024-11-09 01:05:55,194 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:55" (1/1) ... [2024-11-09 01:05:55,212 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 44 [2024-11-09 01:05:55,213 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:05:55,214 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:05:55,214 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:05:55,214 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:05:55,224 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:55" (1/1) ... [2024-11-09 01:05:55,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:55" (1/1) ... [2024-11-09 01:05:55,225 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:55" (1/1) ... [2024-11-09 01:05:55,227 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:55" (1/1) ... [2024-11-09 01:05:55,231 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:55" (1/1) ... [2024-11-09 01:05:55,237 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:55" (1/1) ... [2024-11-09 01:05:55,240 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:55" (1/1) ... [2024-11-09 01:05:55,241 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:55" (1/1) ... [2024-11-09 01:05:55,243 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:05:55,244 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:05:55,244 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:05:55,244 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:05:55,245 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:55" (1/1) ... [2024-11-09 01:05:55,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:05:55,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:05:55,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:05:55,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:05:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:05:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:05:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:05:55,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:05:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 01:05:55,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 01:05:55,395 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:05:55,399 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:05:55,589 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-09 01:05:55,590 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:05:55,638 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:05:55,638 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 01:05:55,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:05:55 BoogieIcfgContainer [2024-11-09 01:05:55,639 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:05:55,642 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:05:55,642 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:05:55,646 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:05:55,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:05:54" (1/3) ... [2024-11-09 01:05:55,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@88fc973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:05:55, skipping insertion in model container [2024-11-09 01:05:55,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:55" (2/3) ... [2024-11-09 01:05:55,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@88fc973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:05:55, skipping insertion in model container [2024-11-09 01:05:55,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:05:55" (3/3) ... [2024-11-09 01:05:55,650 INFO L112 eAbstractionObserver]: Analyzing ICFG freire1_valuebound100.c [2024-11-09 01:05:55,671 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:05:55,671 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-09 01:05:55,736 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:05:55,742 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;@794af42a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:05:55,743 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-09 01:05:55,746 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 17 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:05:55,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 01:05:55,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:55,753 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 01:05:55,754 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:05:55,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:55,759 INFO L85 PathProgramCache]: Analyzing trace with hash 98567, now seen corresponding path program 1 times [2024-11-09 01:05:55,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:05:55,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022191265] [2024-11-09 01:05:55,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:55,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:05:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:55,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:05:55,906 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:05:55,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022191265] [2024-11-09 01:05:55,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022191265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:05:55,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:05:55,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 01:05:55,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064208517] [2024-11-09 01:05:55,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:05:55,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 01:05:55,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:05:55,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 01:05:55,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 01:05:55,967 INFO L87 Difference]: Start difference. First operand has 21 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 17 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:05:56,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:56,024 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2024-11-09 01:05:56,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 01:05:56,029 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-09 01:05:56,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:56,036 INFO L225 Difference]: With dead ends: 29 [2024-11-09 01:05:56,036 INFO L226 Difference]: Without dead ends: 16 [2024-11-09 01:05:56,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 01:05:56,045 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:56,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:05:56,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-09 01:05:56,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-09 01:05:56,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:05:56,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2024-11-09 01:05:56,093 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 3 [2024-11-09 01:05:56,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:56,093 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2024-11-09 01:05:56,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:05:56,094 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2024-11-09 01:05:56,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 01:05:56,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:56,094 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 01:05:56,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 01:05:56,098 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:05:56,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:56,099 INFO L85 PathProgramCache]: Analyzing trace with hash 3055628, now seen corresponding path program 1 times [2024-11-09 01:05:56,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:05:56,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955962201] [2024-11-09 01:05:56,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:56,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:05:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:05:56,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [423242398] [2024-11-09 01:05:56,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:56,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:56,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:05:56,132 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:05:56,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 01:05:56,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:56,207 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:05:56,212 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:56,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:05:56,244 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:05:56,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:05:56,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955962201] [2024-11-09 01:05:56,246 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:05:56,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423242398] [2024-11-09 01:05:56,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423242398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:05:56,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:05:56,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 01:05:56,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843936721] [2024-11-09 01:05:56,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:05:56,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:05:56,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:05:56,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:05:56,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:05:56,254 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:05:56,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:56,314 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2024-11-09 01:05:56,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:05:56,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-09 01:05:56,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:56,315 INFO L225 Difference]: With dead ends: 29 [2024-11-09 01:05:56,316 INFO L226 Difference]: Without dead ends: 23 [2024-11-09 01:05:56,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:05:56,317 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 5 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:56,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 14 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:05:56,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-09 01:05:56,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-11-09 01:05:56,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:05:56,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2024-11-09 01:05:56,332 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 4 [2024-11-09 01:05:56,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:56,333 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2024-11-09 01:05:56,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:05:56,333 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2024-11-09 01:05:56,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 01:05:56,336 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:56,336 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:56,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 01:05:56,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:56,540 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:05:56,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:56,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1614454891, now seen corresponding path program 1 times [2024-11-09 01:05:56,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:05:56,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890168659] [2024-11-09 01:05:56,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:56,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:05:56,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:05:56,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [774049070] [2024-11-09 01:05:56,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:56,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:56,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:05:56,590 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:05:56,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 01:05:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:56,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:05:56,667 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:56,756 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:05:56,757 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:05:56,884 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:05:56,884 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:05:56,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890168659] [2024-11-09 01:05:56,885 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:05:56,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774049070] [2024-11-09 01:05:56,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774049070] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:05:56,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [54051979] [2024-11-09 01:05:56,909 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-09 01:05:56,909 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:05:56,912 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:05:56,918 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:05:56,918 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:05:57,777 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-09 01:05:57,780 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:05:58,045 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '239#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_36| Int)) (and (<= |v_ULTIMATE.start_main_~r~0#1_36| 2147483647) (<= 0 |v_ULTIMATE.start_main_~r~0#1_36|) (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_36| |v_ULTIMATE.start_main_~r~0#1_36|)))))' at error location [2024-11-09 01:05:58,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:05:58,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:05:58,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-09 01:05:58,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463290104] [2024-11-09 01:05:58,046 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 01:05:58,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:05:58,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:05:58,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:05:58,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-09 01:05:58,048 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:05:58,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:58,153 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2024-11-09 01:05:58,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:05:58,153 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2024-11-09 01:05:58,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:58,154 INFO L225 Difference]: With dead ends: 45 [2024-11-09 01:05:58,154 INFO L226 Difference]: Without dead ends: 35 [2024-11-09 01:05:58,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-09 01:05:58,156 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 19 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:58,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 24 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:05:58,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-09 01:05:58,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-09 01:05:58,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 29 states have internal predecessors, (30), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 01:05:58,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2024-11-09 01:05:58,165 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 13 [2024-11-09 01:05:58,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:58,169 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2024-11-09 01:05:58,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:05:58,170 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2024-11-09 01:05:58,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 01:05:58,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:58,171 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2024-11-09 01:05:58,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 01:05:58,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:58,375 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:05:58,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:58,376 INFO L85 PathProgramCache]: Analyzing trace with hash 735915084, now seen corresponding path program 2 times [2024-11-09 01:05:58,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:05:58,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315390897] [2024-11-09 01:05:58,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:58,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:05:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:05:58,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2029059595] [2024-11-09 01:05:58,446 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:05:58,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:58,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:05:58,451 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:05:58,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 01:05:58,532 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 01:05:58,532 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:05:58,533 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 01:05:58,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:58,637 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 01:05:58,638 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:05:58,863 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 01:05:58,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:05:58,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315390897] [2024-11-09 01:05:58,864 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:05:58,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029059595] [2024-11-09 01:05:58,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029059595] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:05:58,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [196992174] [2024-11-09 01:05:58,867 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-09 01:05:58,867 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:05:58,867 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:05:58,867 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:05:58,867 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:05:59,255 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-09 01:05:59,257 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:05:59,672 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '595#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_49| Int)) (and (<= |v_ULTIMATE.start_main_~r~0#1_49| 2147483647) (<= 0 |v_ULTIMATE.start_main_~r~0#1_49|) (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_49| |v_ULTIMATE.start_main_~r~0#1_49|)))))' at error location [2024-11-09 01:05:59,672 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:05:59,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:05:59,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-09 01:05:59,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508322330] [2024-11-09 01:05:59,673 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 01:05:59,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 01:05:59,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:05:59,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 01:05:59,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2024-11-09 01:05:59,675 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 01:05:59,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:59,979 INFO L93 Difference]: Finished difference Result 78 states and 92 transitions. [2024-11-09 01:05:59,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 01:05:59,980 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 40 [2024-11-09 01:05:59,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:59,981 INFO L225 Difference]: With dead ends: 78 [2024-11-09 01:05:59,981 INFO L226 Difference]: Without dead ends: 77 [2024-11-09 01:05:59,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 97 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2024-11-09 01:05:59,983 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 18 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:59,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 95 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:05:59,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-09 01:05:59,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-11-09 01:05:59,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 65 states have (on average 1.0153846153846153) internal successors, (66), 65 states have internal predecessors, (66), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 01:05:59,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 86 transitions. [2024-11-09 01:05:59,999 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 86 transitions. Word has length 40 [2024-11-09 01:06:00,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:06:00,000 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 86 transitions. [2024-11-09 01:06:00,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 01:06:00,001 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 86 transitions. [2024-11-09 01:06:00,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-09 01:06:00,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:06:00,003 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 1, 1] [2024-11-09 01:06:00,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 01:06:00,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:06:00,207 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:06:00,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:06:00,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1958863532, now seen corresponding path program 3 times [2024-11-09 01:06:00,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:06:00,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029298852] [2024-11-09 01:06:00,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:06:00,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:06:00,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:06:00,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1849244598] [2024-11-09 01:06:00,270 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 01:06:00,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:06:00,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:06:00,272 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:06:00,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 01:06:00,369 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 01:06:00,369 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:06:00,371 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 01:06:00,375 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:06:00,592 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 01:06:00,593 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:06:01,205 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 01:06:01,206 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:06:01,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029298852] [2024-11-09 01:06:01,206 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:06:01,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849244598] [2024-11-09 01:06:01,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849244598] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:06:01,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1081455557] [2024-11-09 01:06:01,209 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-09 01:06:01,210 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:06:01,211 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:06:01,211 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:06:01,211 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:06:01,525 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-09 01:06:01,526 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:06:02,397 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1392#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_74| Int)) (and (<= |v_ULTIMATE.start_main_~r~0#1_74| 2147483647) (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_74| |v_ULTIMATE.start_main_~r~0#1_74|)) (<= 0 |v_ULTIMATE.start_main_~r~0#1_74|))))' at error location [2024-11-09 01:06:02,397 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:06:02,397 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:06:02,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2024-11-09 01:06:02,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931672454] [2024-11-09 01:06:02,398 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 01:06:02,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-09 01:06:02,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:06:02,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-09 01:06:02,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=683, Unknown=0, NotChecked=0, Total=870 [2024-11-09 01:06:02,401 INFO L87 Difference]: Start difference. First operand 77 states and 86 transitions. Second operand has 24 states, 23 states have (on average 5.608695652173913) internal successors, (129), 24 states have internal predecessors, (129), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 01:06:03,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:06:03,459 INFO L93 Difference]: Finished difference Result 162 states and 194 transitions. [2024-11-09 01:06:03,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-09 01:06:03,460 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.608695652173913) internal successors, (129), 24 states have internal predecessors, (129), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 94 [2024-11-09 01:06:03,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:06:03,463 INFO L225 Difference]: With dead ends: 162 [2024-11-09 01:06:03,463 INFO L226 Difference]: Without dead ends: 161 [2024-11-09 01:06:03,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 241 SyntacticMatches, 11 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=427, Invalid=1133, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 01:06:03,465 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 39 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:06:03,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 407 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 01:06:03,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-09 01:06:03,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2024-11-09 01:06:03,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 137 states have (on average 1.0072992700729928) internal successors, (138), 137 states have internal predecessors, (138), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-09 01:06:03,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 182 transitions. [2024-11-09 01:06:03,490 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 182 transitions. Word has length 94 [2024-11-09 01:06:03,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:06:03,491 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 182 transitions. [2024-11-09 01:06:03,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.608695652173913) internal successors, (129), 24 states have internal predecessors, (129), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 01:06:03,491 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 182 transitions. [2024-11-09 01:06:03,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-09 01:06:03,497 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:06:03,497 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 22, 1, 1] [2024-11-09 01:06:03,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 01:06:03,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:06:03,698 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:06:03,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:06:03,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1745635476, now seen corresponding path program 4 times [2024-11-09 01:06:03,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:06:03,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056786625] [2024-11-09 01:06:03,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:06:03,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:06:03,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:06:03,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [957236246] [2024-11-09 01:06:03,889 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 01:06:03,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:06:03,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:06:03,895 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:06:03,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 01:06:04,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:06:04,010 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-09 01:06:04,016 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:06:04,537 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-11-09 01:06:04,538 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:06:06,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-11-09 01:06:06,185 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:06:06,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056786625] [2024-11-09 01:06:06,185 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:06:06,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957236246] [2024-11-09 01:06:06,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957236246] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:06:06,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1691852208] [2024-11-09 01:06:06,188 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-09 01:06:06,189 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:06:06,189 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:06:06,189 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:06:06,189 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:06:06,445 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-09 01:06:06,447 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:06:08,744 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3089#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_123| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_123| |v_ULTIMATE.start_main_~r~0#1_123|)) (<= |v_ULTIMATE.start_main_~r~0#1_123| 2147483647) (<= 0 |v_ULTIMATE.start_main_~r~0#1_123|))))' at error location [2024-11-09 01:06:08,745 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:06:08,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:06:08,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2024-11-09 01:06:08,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906025660] [2024-11-09 01:06:08,746 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 01:06:08,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-09 01:06:08,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:06:08,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-09 01:06:08,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=643, Invalid=2219, Unknown=0, NotChecked=0, Total=2862 [2024-11-09 01:06:08,750 INFO L87 Difference]: Start difference. First operand 161 states and 182 transitions. Second operand has 48 states, 47 states have (on average 5.808510638297872) internal successors, (273), 48 states have internal predecessors, (273), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-09 01:06:12,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:06:12,801 INFO L93 Difference]: Finished difference Result 330 states and 398 transitions. [2024-11-09 01:06:12,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-09 01:06:12,802 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.808510638297872) internal successors, (273), 48 states have internal predecessors, (273), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Word has length 202 [2024-11-09 01:06:12,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:06:12,805 INFO L225 Difference]: With dead ends: 330 [2024-11-09 01:06:12,805 INFO L226 Difference]: Without dead ends: 329 [2024-11-09 01:06:12,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 626 GetRequests, 529 SyntacticMatches, 23 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1055 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=1699, Invalid=4001, Unknown=0, NotChecked=0, Total=5700 [2024-11-09 01:06:12,808 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 72 mSDsluCounter, 1586 mSDsCounter, 0 mSdLazyCounter, 2805 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 2829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:06:12,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1679 Invalid, 2829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2805 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 01:06:12,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-11-09 01:06:12,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2024-11-09 01:06:12,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 281 states have (on average 1.00355871886121) internal successors, (282), 281 states have internal predecessors, (282), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-09 01:06:12,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 374 transitions. [2024-11-09 01:06:12,844 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 374 transitions. Word has length 202 [2024-11-09 01:06:12,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:06:12,845 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 374 transitions. [2024-11-09 01:06:12,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.808510638297872) internal successors, (273), 48 states have internal predecessors, (273), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-09 01:06:12,846 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 374 transitions. [2024-11-09 01:06:12,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2024-11-09 01:06:12,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:06:12,860 INFO L215 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 46, 46, 1, 1] [2024-11-09 01:06:12,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 01:06:13,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:06:13,064 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:06:13,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:06:13,065 INFO L85 PathProgramCache]: Analyzing trace with hash 107020524, now seen corresponding path program 5 times [2024-11-09 01:06:13,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:06:13,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859212474] [2024-11-09 01:06:13,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:06:13,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:06:13,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:06:13,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [133813686] [2024-11-09 01:06:13,253 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:06:13,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:06:13,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:06:13,255 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:06:13,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 01:06:13,806 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 47 check-sat command(s) [2024-11-09 01:06:13,807 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:06:13,811 INFO L255 TraceCheckSpWp]: Trace formula consists of 671 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-09 01:06:13,832 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:06:15,388 INFO L134 CoverageAnalysis]: Checked inductivity of 9453 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 2070 trivial. 0 not checked. [2024-11-09 01:06:15,389 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:06:15,767 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:06:15,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859212474] [2024-11-09 01:06:15,768 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:06:15,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133813686] [2024-11-09 01:06:15,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133813686] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:06:15,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [760461745] [2024-11-09 01:06:15,771 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-09 01:06:15,772 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:06:15,772 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:06:15,772 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:06:15,773 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:06:16,067 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-09 01:06:16,068 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:06:19,382 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5341#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_176| Int)) (and (<= 0 |v_ULTIMATE.start_main_~r~0#1_176|) (<= |v_ULTIMATE.start_main_~r~0#1_176| 2147483647) (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_176| |v_ULTIMATE.start_main_~r~0#1_176|)))))' at error location [2024-11-09 01:06:19,382 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:06:19,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:06:19,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2024-11-09 01:06:19,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125186822] [2024-11-09 01:06:19,382 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 01:06:19,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-09 01:06:19,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:06:19,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-09 01:06:19,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1264, Invalid=2276, Unknown=0, NotChecked=0, Total=3540 [2024-11-09 01:06:19,388 INFO L87 Difference]: Start difference. First operand 329 states and 374 transitions. Second operand has 50 states, 49 states have (on average 5.73469387755102) internal successors, (281), 50 states have internal predecessors, (281), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-09 01:06:21,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:06:21,759 INFO L93 Difference]: Finished difference Result 341 states and 388 transitions. [2024-11-09 01:06:21,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-09 01:06:21,760 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 5.73469387755102) internal successors, (281), 50 states have internal predecessors, (281), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Word has length 418 [2024-11-09 01:06:21,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:06:21,766 INFO L225 Difference]: With dead ends: 341 [2024-11-09 01:06:21,766 INFO L226 Difference]: Without dead ends: 340 [2024-11-09 01:06:21,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 897 GetRequests, 746 SyntacticMatches, 47 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4251 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=3748, Invalid=7382, Unknown=0, NotChecked=0, Total=11130 [2024-11-09 01:06:21,770 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 233 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:06:21,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 108 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 01:06:21,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-09 01:06:21,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 336. [2024-11-09 01:06:21,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 287 states have (on average 1.0034843205574913) internal successors, (288), 287 states have internal predecessors, (288), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-09 01:06:21,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 382 transitions. [2024-11-09 01:06:21,819 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 382 transitions. Word has length 418 [2024-11-09 01:06:21,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:06:21,820 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 382 transitions. [2024-11-09 01:06:21,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 5.73469387755102) internal successors, (281), 50 states have internal predecessors, (281), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-09 01:06:21,821 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 382 transitions. [2024-11-09 01:06:21,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2024-11-09 01:06:21,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:06:21,831 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 47, 47, 47, 47, 47, 47, 47, 1, 1] [2024-11-09 01:06:21,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 01:06:22,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:06:22,035 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:06:22,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:06:22,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1132332363, now seen corresponding path program 6 times [2024-11-09 01:06:22,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:06:22,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746697831] [2024-11-09 01:06:22,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:06:22,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:06:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:06:22,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1549542598] [2024-11-09 01:06:22,271 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 01:06:22,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:06:22,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:06:22,273 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:06:22,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 01:06:22,480 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 01:06:22,480 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:06:22,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 97 conjuncts are in the unsatisfiable core [2024-11-09 01:06:22,492 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:06:24,054 INFO L134 CoverageAnalysis]: Checked inductivity of 9870 backedges. 0 proven. 7708 refuted. 0 times theorem prover too weak. 2162 trivial. 0 not checked. [2024-11-09 01:06:24,054 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:06:29,585 INFO L134 CoverageAnalysis]: Checked inductivity of 9870 backedges. 0 proven. 7708 refuted. 0 times theorem prover too weak. 2162 trivial. 0 not checked. [2024-11-09 01:06:29,586 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:06:29,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746697831] [2024-11-09 01:06:29,586 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:06:29,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549542598] [2024-11-09 01:06:29,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549542598] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:06:29,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1260515293] [2024-11-09 01:06:29,589 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-09 01:06:29,589 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:06:29,590 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:06:29,590 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:06:29,590 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:06:29,815 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-09 01:06:29,817 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:06:39,228 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8965#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_275| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_275| |v_ULTIMATE.start_main_~r~0#1_275|)) (<= |v_ULTIMATE.start_main_~r~0#1_275| 2147483647) (<= 0 |v_ULTIMATE.start_main_~r~0#1_275|))))' at error location [2024-11-09 01:06:39,229 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:06:39,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:06:39,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 97 [2024-11-09 01:06:39,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956489151] [2024-11-09 01:06:39,230 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 01:06:39,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2024-11-09 01:06:39,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:06:39,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2024-11-09 01:06:39,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2518, Invalid=8194, Unknown=0, NotChecked=0, Total=10712 [2024-11-09 01:06:39,238 INFO L87 Difference]: Start difference. First operand 336 states and 382 transitions. Second operand has 98 states, 97 states have (on average 5.907216494845361) internal successors, (573), 98 states have internal predecessors, (573), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-09 01:07:00,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:07:00,677 INFO L93 Difference]: Finished difference Result 680 states and 823 transitions. [2024-11-09 01:07:00,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2024-11-09 01:07:00,678 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 97 states have (on average 5.907216494845361) internal successors, (573), 98 states have internal predecessors, (573), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) Word has length 427 [2024-11-09 01:07:00,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:07:00,681 INFO L225 Difference]: With dead ends: 680 [2024-11-09 01:07:00,681 INFO L226 Difference]: Without dead ends: 679 [2024-11-09 01:07:00,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1326 GetRequests, 1129 SyntacticMatches, 48 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4005 ImplicationChecksByTransitivity, 30.4s TimeCoverageRelationStatistics Valid=7124, Invalid=15526, Unknown=0, NotChecked=0, Total=22650 [2024-11-09 01:07:00,687 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 147 mSDsluCounter, 6911 mSDsCounter, 0 mSdLazyCounter, 11855 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 7104 SdHoareTripleChecker+Invalid, 11904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 11855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:07:00,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 7104 Invalid, 11904 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [49 Valid, 11855 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-09 01:07:00,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2024-11-09 01:07:00,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 679. [2024-11-09 01:07:00,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 581 states have (on average 1.0017211703958693) internal successors, (582), 581 states have internal predecessors, (582), 96 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-09 01:07:00,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 774 transitions. [2024-11-09 01:07:00,739 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 774 transitions. Word has length 427 [2024-11-09 01:07:00,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:07:00,740 INFO L471 AbstractCegarLoop]: Abstraction has 679 states and 774 transitions. [2024-11-09 01:07:00,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 97 states have (on average 5.907216494845361) internal successors, (573), 98 states have internal predecessors, (573), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-09 01:07:00,741 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 774 transitions. [2024-11-09 01:07:00,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 869 [2024-11-09 01:07:00,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:07:00,777 INFO L215 NwaCegarLoop]: trace histogram [97, 97, 96, 96, 96, 96, 96, 96, 96, 1, 1] [2024-11-09 01:07:00,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 01:07:00,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-09 01:07:00,978 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:07:00,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:07:00,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1783973388, now seen corresponding path program 7 times [2024-11-09 01:07:00,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:07:00,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790534228] [2024-11-09 01:07:00,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:07:00,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:07:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:07:01,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1534159302] [2024-11-09 01:07:01,309 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 01:07:01,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:07:01,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:07:01,311 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:07:01,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 01:07:01,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:07:01,626 INFO L255 TraceCheckSpWp]: Trace formula consists of 1371 conjuncts, 195 conjuncts are in the unsatisfiable core [2024-11-09 01:07:01,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:07:06,425 INFO L134 CoverageAnalysis]: Checked inductivity of 41328 backedges. 0 proven. 32208 refuted. 0 times theorem prover too weak. 9120 trivial. 0 not checked. [2024-11-09 01:07:06,425 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:07:25,014 INFO L134 CoverageAnalysis]: Checked inductivity of 41328 backedges. 0 proven. 32208 refuted. 0 times theorem prover too weak. 9120 trivial. 0 not checked. [2024-11-09 01:07:25,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:07:25,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790534228] [2024-11-09 01:07:25,015 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:07:25,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534159302] [2024-11-09 01:07:25,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534159302] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:07:25,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1342553430] [2024-11-09 01:07:25,017 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-09 01:07:25,017 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:07:25,018 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:07:25,030 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:07:25,030 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:07:25,230 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-09 01:07:25,233 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:07:54,729 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16212#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_472| Int)) (and (<= |v_ULTIMATE.start_main_~r~0#1_472| 2147483647) (<= 0 |v_ULTIMATE.start_main_~r~0#1_472|) (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_472| |v_ULTIMATE.start_main_~r~0#1_472|)))))' at error location [2024-11-09 01:07:54,729 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:07:54,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:07:54,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 98] total 195 [2024-11-09 01:07:54,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950256861] [2024-11-09 01:07:54,730 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 01:07:54,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 196 states [2024-11-09 01:07:54,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:07:54,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 196 interpolants. [2024-11-09 01:07:54,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9819, Invalid=30783, Unknown=0, NotChecked=0, Total=40602 [2024-11-09 01:07:54,747 INFO L87 Difference]: Start difference. First operand 679 states and 774 transitions. Second operand has 196 states, 195 states have (on average 5.953846153846154) internal successors, (1161), 196 states have internal predecessors, (1161), 192 states have call successors, (192), 1 states have call predecessors, (192), 1 states have return successors, (192), 192 states have call predecessors, (192), 192 states have call successors, (192) [2024-11-09 01:10:04,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:10:04,423 INFO L93 Difference]: Finished difference Result 1366 states and 1656 transitions. [2024-11-09 01:10:04,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2024-11-09 01:10:04,425 INFO L78 Accepts]: Start accepts. Automaton has has 196 states, 195 states have (on average 5.953846153846154) internal successors, (1161), 196 states have internal predecessors, (1161), 192 states have call successors, (192), 1 states have call predecessors, (192), 1 states have return successors, (192), 192 states have call predecessors, (192), 192 states have call successors, (192) Word has length 868 [2024-11-09 01:10:04,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:10:04,452 INFO L225 Difference]: With dead ends: 1366 [2024-11-09 01:10:04,452 INFO L226 Difference]: Without dead ends: 1365 [2024-11-09 01:10:04,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2698 GetRequests, 2305 SyntacticMatches, 97 SemanticMatches, 296 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15226 ImplicationChecksByTransitivity, 160.4s TimeCoverageRelationStatistics Valid=28635, Invalid=59871, Unknown=0, NotChecked=0, Total=88506 [2024-11-09 01:10:04,464 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 297 mSDsluCounter, 28614 mSDsCounter, 0 mSdLazyCounter, 47731 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 29003 SdHoareTripleChecker+Invalid, 47830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 47731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:10:04,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 29003 Invalid, 47830 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [99 Valid, 47731 Invalid, 0 Unknown, 0 Unchecked, 15.9s Time] [2024-11-09 01:10:04,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1365 states. [2024-11-09 01:10:04,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1365 to 1365. [2024-11-09 01:10:04,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1365 states, 1169 states have (on average 1.0008554319931566) internal successors, (1170), 1169 states have internal predecessors, (1170), 194 states have call successors, (194), 1 states have call predecessors, (194), 1 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2024-11-09 01:10:04,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 1558 transitions. [2024-11-09 01:10:04,573 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 1558 transitions. Word has length 868 [2024-11-09 01:10:04,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:10:04,575 INFO L471 AbstractCegarLoop]: Abstraction has 1365 states and 1558 transitions. [2024-11-09 01:10:04,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 196 states, 195 states have (on average 5.953846153846154) internal successors, (1161), 196 states have internal predecessors, (1161), 192 states have call successors, (192), 1 states have call predecessors, (192), 1 states have return successors, (192), 192 states have call predecessors, (192), 192 states have call successors, (192) [2024-11-09 01:10:04,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 1558 transitions. [2024-11-09 01:10:04,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1751 [2024-11-09 01:10:04,598 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:10:04,599 INFO L215 NwaCegarLoop]: trace histogram [195, 195, 194, 194, 194, 194, 194, 194, 194, 1, 1] [2024-11-09 01:10:04,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-09 01:10:04,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:10:04,800 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:10:04,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:10:04,801 INFO L85 PathProgramCache]: Analyzing trace with hash 858609196, now seen corresponding path program 8 times [2024-11-09 01:10:04,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:10:04,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979545947] [2024-11-09 01:10:04,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:10:04,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:10:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:10:05,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [900933911] [2024-11-09 01:10:05,595 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:10:05,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:10:05,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:10:05,597 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:10:05,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 01:10:09,068 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 195 check-sat command(s) [2024-11-09 01:10:09,069 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:10:09,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 2743 conjuncts, 198 conjuncts are in the unsatisfiable core [2024-11-09 01:10:09,112 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:10:27,895 INFO L134 CoverageAnalysis]: Checked inductivity of 169071 backedges. 0 proven. 131629 refuted. 0 times theorem prover too weak. 37442 trivial. 0 not checked. [2024-11-09 01:10:27,895 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:10:28,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:10:28,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979545947] [2024-11-09 01:10:28,969 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:10:28,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900933911] [2024-11-09 01:10:28,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900933911] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:10:28,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [944168702] [2024-11-09 01:10:28,972 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-09 01:10:28,972 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:10:28,972 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:10:28,972 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:10:28,972 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:10:29,149 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-09 01:10:29,150 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:11:11,212 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '25420#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_673| Int)) (and (<= 0 |v_ULTIMATE.start_main_~r~0#1_673|) (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_673| |v_ULTIMATE.start_main_~r~0#1_673|)) (<= |v_ULTIMATE.start_main_~r~0#1_673| 2147483647))))' at error location [2024-11-09 01:11:11,213 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:11:11,213 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:11:11,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [197] total 197 [2024-11-09 01:11:11,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535542370] [2024-11-09 01:11:11,213 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 01:11:11,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 198 states [2024-11-09 01:11:11,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:11:11,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 198 interpolants. [2024-11-09 01:11:11,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19542, Invalid=23514, Unknown=0, NotChecked=0, Total=43056 [2024-11-09 01:11:11,227 INFO L87 Difference]: Start difference. First operand 1365 states and 1558 transitions. Second operand has 198 states, 197 states have (on average 5.934010152284264) internal successors, (1169), 198 states have internal predecessors, (1169), 194 states have call successors, (194), 1 states have call predecessors, (194), 1 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2024-11-09 01:11:45,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:11:45,367 INFO L93 Difference]: Finished difference Result 1377 states and 1572 transitions. [2024-11-09 01:11:45,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 197 states. [2024-11-09 01:11:45,369 INFO L78 Accepts]: Start accepts. Automaton has has 198 states, 197 states have (on average 5.934010152284264) internal successors, (1169), 198 states have internal predecessors, (1169), 194 states have call successors, (194), 1 states have call predecessors, (194), 1 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) Word has length 1750 [2024-11-09 01:11:45,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:11:45,379 INFO L225 Difference]: With dead ends: 1377 [2024-11-09 01:11:45,379 INFO L226 Difference]: Without dead ends: 1376 [2024-11-09 01:11:45,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3709 GetRequests, 3114 SyntacticMatches, 195 SemanticMatches, 400 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60861 ImplicationChecksByTransitivity, 90.2s TimeCoverageRelationStatistics Valid=58730, Invalid=102472, Unknown=0, NotChecked=0, Total=161202 [2024-11-09 01:11:45,394 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 973 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:11:45,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 402 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [389 Valid, 992 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 01:11:45,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2024-11-09 01:11:45,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1372. [2024-11-09 01:11:45,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1372 states, 1175 states have (on average 1.0008510638297872) internal successors, (1176), 1175 states have internal predecessors, (1176), 195 states have call successors, (195), 1 states have call predecessors, (195), 1 states have return successors, (195), 195 states have call predecessors, (195), 195 states have call successors, (195) [2024-11-09 01:11:45,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 1566 transitions. [2024-11-09 01:11:45,506 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 1566 transitions. Word has length 1750 [2024-11-09 01:11:45,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:11:45,510 INFO L471 AbstractCegarLoop]: Abstraction has 1372 states and 1566 transitions. [2024-11-09 01:11:45,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 198 states, 197 states have (on average 5.934010152284264) internal successors, (1169), 198 states have internal predecessors, (1169), 194 states have call successors, (194), 1 states have call predecessors, (194), 1 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2024-11-09 01:11:45,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 1566 transitions. [2024-11-09 01:11:45,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1760 [2024-11-09 01:11:45,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:11:45,575 INFO L215 NwaCegarLoop]: trace histogram [196, 196, 195, 195, 195, 195, 195, 195, 195, 1, 1] [2024-11-09 01:11:45,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 01:11:45,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 01:11:45,776 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:11:45,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:11:45,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1440641675, now seen corresponding path program 9 times [2024-11-09 01:11:45,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:11:45,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060848865] [2024-11-09 01:11:45,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:11:45,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:11:46,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:11:46,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [383620261] [2024-11-09 01:11:46,671 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 01:11:46,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:11:46,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:11:46,673 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:11:46,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c68bf2-425e-4ada-a0e6-6e1db21b28af/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 01:11:47,397 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 01:11:47,397 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:11:47,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 2757 conjuncts, 393 conjuncts are in the unsatisfiable core [2024-11-09 01:11:47,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:12:05,332 INFO L134 CoverageAnalysis]: Checked inductivity of 170820 backedges. 0 proven. 132990 refuted. 0 times theorem prover too weak. 37830 trivial. 0 not checked. [2024-11-09 01:12:05,332 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:13:20,251 INFO L134 CoverageAnalysis]: Checked inductivity of 170820 backedges. 0 proven. 132990 refuted. 0 times theorem prover too weak. 37830 trivial. 0 not checked. [2024-11-09 01:13:20,252 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:13:20,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060848865] [2024-11-09 01:13:20,252 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:13:20,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383620261] [2024-11-09 01:13:20,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383620261] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:13:20,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1255122000] [2024-11-09 01:13:20,255 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-09 01:13:20,255 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:13:20,255 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:13:20,256 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:13:20,256 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:13:20,455 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-09 01:13:20,456 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:15:22,050 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '40292#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_1068| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_1068| |v_ULTIMATE.start_main_~r~0#1_1068|)) (<= |v_ULTIMATE.start_main_~r~0#1_1068| 2147483647) (<= 0 |v_ULTIMATE.start_main_~r~0#1_1068|))))' at error location [2024-11-09 01:15:22,050 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:15:22,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:15:22,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [197, 197] total 393 [2024-11-09 01:15:22,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60801191] [2024-11-09 01:15:22,052 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 01:15:22,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 394 states [2024-11-09 01:15:22,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:15:22,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 394 interpolants. [2024-11-09 01:15:22,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39222, Invalid=120378, Unknown=0, NotChecked=0, Total=159600 [2024-11-09 01:15:22,081 INFO L87 Difference]: Start difference. First operand 1372 states and 1566 transitions. Second operand has 394 states, 393 states have (on average 5.977099236641221) internal successors, (2349), 394 states have internal predecessors, (2349), 390 states have call successors, (390), 1 states have call predecessors, (390), 1 states have return successors, (390), 390 states have call predecessors, (390), 390 states have call successors, (390)