./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91 --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 4f9eb6f5ed10e87bb24b60ecc008ae0f7d927414b72cef44f169022f555bf831 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:00:07,631 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:00:07,776 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-25 00:00:07,785 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:00:07,786 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:00:07,828 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:00:07,828 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:00:07,829 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:00:07,830 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:00:07,831 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:00:07,832 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:00:07,832 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:00:07,833 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:00:07,834 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:00:07,835 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:00:07,835 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:00:07,836 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:00:07,837 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:00:07,838 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:00:07,839 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:00:07,839 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:00:07,845 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:00:07,846 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:00:07,847 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:00:07,848 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:00:07,848 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:00:07,849 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:00:07,850 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:00:07,854 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:00:07,855 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:00:07,856 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:00:07,857 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-25 00:00:07,857 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-25 00:00:07,864 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:00:07,864 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:00:07,865 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:00:07,866 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:00:07,866 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:00:07,867 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:00:07,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:00:07,868 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:00:07,874 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:00:07,875 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:00:07,875 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:00:07,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:00:07,876 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:00:07,877 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:00:07,877 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:00:07,878 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:00:07,878 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_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f9eb6f5ed10e87bb24b60ecc008ae0f7d927414b72cef44f169022f555bf831 [2023-11-25 00:00:08,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:00:08,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:00:08,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:00:08,228 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:00:08,229 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:00:08,230 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound1.c [2023-11-25 00:00:11,724 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:00:11,955 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:00:11,955 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound1.c [2023-11-25 00:00:11,964 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/data/c498e2546/9433118b1cc64403acd799717b10891f/FLAG608402039 [2023-11-25 00:00:11,982 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/data/c498e2546/9433118b1cc64403acd799717b10891f [2023-11-25 00:00:11,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:00:11,988 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:00:11,990 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:00:11,990 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:00:12,004 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:00:12,006 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:00:11" (1/1) ... [2023-11-25 00:00:12,008 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eb08ec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:12, skipping insertion in model container [2023-11-25 00:00:12,008 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:00:11" (1/1) ... [2023-11-25 00:00:12,040 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:00:12,240 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:00:12,253 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:00:12,273 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:00:12,289 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:00:12,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:12 WrapperNode [2023-11-25 00:00:12,289 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:00:12,291 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:00:12,291 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:00:12,291 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:00:12,301 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:12" (1/1) ... [2023-11-25 00:00:12,309 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:12" (1/1) ... [2023-11-25 00:00:12,335 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 79 [2023-11-25 00:00:12,336 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:00:12,336 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:00:12,337 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:00:12,337 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:00:12,348 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:12" (1/1) ... [2023-11-25 00:00:12,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:12" (1/1) ... [2023-11-25 00:00:12,350 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:12" (1/1) ... [2023-11-25 00:00:12,351 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:12" (1/1) ... [2023-11-25 00:00:12,355 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:12" (1/1) ... [2023-11-25 00:00:12,359 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:12" (1/1) ... [2023-11-25 00:00:12,360 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:12" (1/1) ... [2023-11-25 00:00:12,361 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:12" (1/1) ... [2023-11-25 00:00:12,364 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:00:12,365 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:00:12,365 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:00:12,365 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:00:12,366 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:12" (1/1) ... [2023-11-25 00:00:12,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:00:12,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:00:12,431 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:00:12,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:00:12,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:00:12,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:00:12,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:00:12,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:00:12,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-25 00:00:12,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-25 00:00:12,538 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:00:12,541 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:00:12,825 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:00:12,870 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:00:12,870 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-25 00:00:12,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:00:12 BoogieIcfgContainer [2023-11-25 00:00:12,872 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:00:12,875 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:00:12,876 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:00:12,880 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:00:12,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:00:11" (1/3) ... [2023-11-25 00:00:12,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8d8ed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:00:12, skipping insertion in model container [2023-11-25 00:00:12,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:12" (2/3) ... [2023-11-25 00:00:12,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8d8ed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:00:12, skipping insertion in model container [2023-11-25 00:00:12,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:00:12" (3/3) ... [2023-11-25 00:00:12,884 INFO L112 eAbstractionObserver]: Analyzing ICFG geo2-ll_unwindbound1.c [2023-11-25 00:00:12,907 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:00:12,908 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-11-25 00:00:12,976 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:00:12,985 INFO L357 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, mHoare=true, 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;@4c7ff604, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:00:12,986 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-11-25 00:00:12,991 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 36 states have (on average 1.9166666666666667) internal successors, (69), 66 states have internal predecessors, (69), 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) [2023-11-25 00:00:12,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-25 00:00:12,999 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:00:13,000 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-25 00:00:13,000 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-25 00:00:13,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:00:13,008 INFO L85 PathProgramCache]: Analyzing trace with hash 129960, now seen corresponding path program 1 times [2023-11-25 00:00:13,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:00:13,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443710228] [2023-11-25 00:00:13,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:13,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:00:13,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:00:13,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:00:13,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:00:13,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443710228] [2023-11-25 00:00:13,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443710228] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:00:13,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:00:13,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:00:13,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581585383] [2023-11-25 00:00:13,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:00:13,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:00:13,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:00:13,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:00:13,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:00:13,399 INFO L87 Difference]: Start difference. First operand has 70 states, 36 states have (on average 1.9166666666666667) internal successors, (69), 66 states have internal predecessors, (69), 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 4 states, 3 states have (on average 1.0) internal successors, (3), 3 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) [2023-11-25 00:00:13,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:00:13,542 INFO L93 Difference]: Finished difference Result 101 states and 105 transitions. [2023-11-25 00:00:13,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-25 00:00:13,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 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 [2023-11-25 00:00:13,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:00:13,555 INFO L225 Difference]: With dead ends: 101 [2023-11-25 00:00:13,555 INFO L226 Difference]: Without dead ends: 71 [2023-11-25 00:00:13,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:00:13,564 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 4 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:00:13,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 193 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:00:13,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-25 00:00:13,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2023-11-25 00:00:13,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 39 states have (on average 1.794871794871795) internal successors, (70), 68 states have internal predecessors, (70), 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) [2023-11-25 00:00:13,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2023-11-25 00:00:13,622 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 3 [2023-11-25 00:00:13,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:00:13,622 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2023-11-25 00:00:13,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 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) [2023-11-25 00:00:13,623 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2023-11-25 00:00:13,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-25 00:00:13,624 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:00:13,624 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-25 00:00:13,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:00:13,625 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-25 00:00:13,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:00:13,626 INFO L85 PathProgramCache]: Analyzing trace with hash -423288061, now seen corresponding path program 1 times [2023-11-25 00:00:13,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:00:13,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697231513] [2023-11-25 00:00:13,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:13,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:00:13,661 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:00:13,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2049536130] [2023-11-25 00:00:13,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:13,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:00:13,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:00:13,677 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:00:13,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-25 00:00:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:00:13,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:00:13,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:00:13,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:00:13,969 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:00:13,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:00:13,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697231513] [2023-11-25 00:00:13,970 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:00:13,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049536130] [2023-11-25 00:00:13,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049536130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:00:13,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:00:13,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-25 00:00:13,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991182063] [2023-11-25 00:00:13,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:00:13,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:00:13,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:00:13,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:00:13,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:00:13,985 INFO L87 Difference]: Start difference. First operand 71 states and 72 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-25 00:00:14,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:00:14,194 INFO L93 Difference]: Finished difference Result 125 states and 127 transitions. [2023-11-25 00:00:14,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:00:14,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-11-25 00:00:14,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:00:14,197 INFO L225 Difference]: With dead ends: 125 [2023-11-25 00:00:14,198 INFO L226 Difference]: Without dead ends: 117 [2023-11-25 00:00:14,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:00:14,200 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 44 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-25 00:00:14,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 42 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-25 00:00:14,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-11-25 00:00:14,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 93. [2023-11-25 00:00:14,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 60 states have (on average 1.7333333333333334) internal successors, (104), 89 states have internal predecessors, (104), 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) [2023-11-25 00:00:14,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 108 transitions. [2023-11-25 00:00:14,215 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 108 transitions. Word has length 6 [2023-11-25 00:00:14,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:00:14,215 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 108 transitions. [2023-11-25 00:00:14,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-25 00:00:14,216 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 108 transitions. [2023-11-25 00:00:14,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-25 00:00:14,216 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:00:14,216 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:00:14,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-25 00:00:14,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:00:14,423 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-25 00:00:14,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:00:14,424 INFO L85 PathProgramCache]: Analyzing trace with hash -237027953, now seen corresponding path program 1 times [2023-11-25 00:00:14,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:00:14,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311255493] [2023-11-25 00:00:14,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:14,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:00:14,446 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:00:14,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1652569709] [2023-11-25 00:00:14,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:14,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:00:14,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:00:14,456 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:00:14,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-25 00:00:14,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:00:14,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:00:14,525 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:00:14,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:00:14,612 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:00:14,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:00:14,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311255493] [2023-11-25 00:00:14,612 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:00:14,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652569709] [2023-11-25 00:00:14,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652569709] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:00:14,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:00:14,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-25 00:00:14,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903894373] [2023-11-25 00:00:14,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:00:14,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:00:14,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:00:14,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:00:14,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:00:14,616 INFO L87 Difference]: Start difference. First operand 93 states and 108 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-25 00:00:14,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:00:14,803 INFO L93 Difference]: Finished difference Result 117 states and 119 transitions. [2023-11-25 00:00:14,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:00:14,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2023-11-25 00:00:14,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:00:14,813 INFO L225 Difference]: With dead ends: 117 [2023-11-25 00:00:14,813 INFO L226 Difference]: Without dead ends: 109 [2023-11-25 00:00:14,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:00:14,820 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 35 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-25 00:00:14,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 50 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-25 00:00:14,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-11-25 00:00:14,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 95. [2023-11-25 00:00:14,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 62 states have (on average 1.6129032258064515) internal successors, (100), 91 states have internal predecessors, (100), 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) [2023-11-25 00:00:14,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 104 transitions. [2023-11-25 00:00:14,839 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 104 transitions. Word has length 7 [2023-11-25 00:00:14,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:00:14,840 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 104 transitions. [2023-11-25 00:00:14,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-25 00:00:14,845 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 104 transitions. [2023-11-25 00:00:14,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-25 00:00:14,846 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:00:14,846 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:00:14,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-25 00:00:15,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:00:15,052 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-25 00:00:15,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:00:15,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1880756105, now seen corresponding path program 1 times [2023-11-25 00:00:15,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:00:15,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091248867] [2023-11-25 00:00:15,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:15,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:00:15,067 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:00:15,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [927824884] [2023-11-25 00:00:15,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:15,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:00:15,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:00:15,069 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:00:15,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-25 00:00:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:00:15,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:00:15,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:00:15,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:00:15,269 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:00:15,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:00:15,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091248867] [2023-11-25 00:00:15,271 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:00:15,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927824884] [2023-11-25 00:00:15,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927824884] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:00:15,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:00:15,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-25 00:00:15,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400560955] [2023-11-25 00:00:15,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:00:15,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:00:15,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:00:15,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:00:15,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:00:15,282 INFO L87 Difference]: Start difference. First operand 95 states and 104 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2023-11-25 00:00:16,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:00:16,223 INFO L93 Difference]: Finished difference Result 113 states and 115 transitions. [2023-11-25 00:00:16,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:00:16,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2023-11-25 00:00:16,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:00:16,225 INFO L225 Difference]: With dead ends: 113 [2023-11-25 00:00:16,225 INFO L226 Difference]: Without dead ends: 110 [2023-11-25 00:00:16,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:00:16,227 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 31 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-25 00:00:16,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 49 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-25 00:00:16,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-25 00:00:16,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 97. [2023-11-25 00:00:16,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 64 states have (on average 1.578125) internal successors, (101), 93 states have internal predecessors, (101), 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) [2023-11-25 00:00:16,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2023-11-25 00:00:16,241 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 12 [2023-11-25 00:00:16,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:00:16,241 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2023-11-25 00:00:16,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2023-11-25 00:00:16,242 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2023-11-25 00:00:16,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-25 00:00:16,243 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:00:16,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:00:16,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-25 00:00:16,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:00:16,449 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-25 00:00:16,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:00:16,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1826102827, now seen corresponding path program 1 times [2023-11-25 00:00:16,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:00:16,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968426371] [2023-11-25 00:00:16,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:16,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:00:16,460 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:00:16,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1006881437] [2023-11-25 00:00:16,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:16,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:00:16,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:00:16,468 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:00:16,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-25 00:00:16,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:00:16,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:00:16,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:00:16,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:00:16,585 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:00:16,585 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:00:16,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968426371] [2023-11-25 00:00:16,585 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:00:16,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006881437] [2023-11-25 00:00:16,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006881437] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:00:16,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:00:16,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-25 00:00:16,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718130978] [2023-11-25 00:00:16,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:00:16,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:00:16,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:00:16,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:00:16,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:00:16,589 INFO L87 Difference]: Start difference. First operand 97 states and 105 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2023-11-25 00:00:17,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:00:17,226 INFO L93 Difference]: Finished difference Result 110 states and 112 transitions. [2023-11-25 00:00:17,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:00:17,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 13 [2023-11-25 00:00:17,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:00:17,228 INFO L225 Difference]: With dead ends: 110 [2023-11-25 00:00:17,228 INFO L226 Difference]: Without dead ends: 107 [2023-11-25 00:00:17,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:00:17,229 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 27 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-25 00:00:17,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 52 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-25 00:00:17,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-25 00:00:17,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 99. [2023-11-25 00:00:17,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 66 states have (on average 1.5454545454545454) internal successors, (102), 95 states have internal predecessors, (102), 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) [2023-11-25 00:00:17,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 106 transitions. [2023-11-25 00:00:17,240 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 106 transitions. Word has length 13 [2023-11-25 00:00:17,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:00:17,241 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 106 transitions. [2023-11-25 00:00:17,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2023-11-25 00:00:17,241 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 106 transitions. [2023-11-25 00:00:17,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-25 00:00:17,242 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:00:17,242 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:00:17,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-25 00:00:17,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:00:17,447 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-25 00:00:17,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:00:17,448 INFO L85 PathProgramCache]: Analyzing trace with hash -774612725, now seen corresponding path program 1 times [2023-11-25 00:00:17,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:00:17,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170872669] [2023-11-25 00:00:17,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:17,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:00:17,461 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:00:17,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2054403629] [2023-11-25 00:00:17,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:17,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:00:17,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:00:17,463 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:00:17,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-25 00:00:17,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:00:17,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-25 00:00:17,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:00:17,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:00:17,685 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:00:17,686 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:00:17,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170872669] [2023-11-25 00:00:17,686 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:00:17,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054403629] [2023-11-25 00:00:17,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054403629] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:00:17,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:00:17,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-25 00:00:17,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617987941] [2023-11-25 00:00:17,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:00:17,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:00:17,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:00:17,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:00:17,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:00:17,689 INFO L87 Difference]: Start difference. First operand 99 states and 106 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2023-11-25 00:00:18,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:00:18,182 INFO L93 Difference]: Finished difference Result 107 states and 109 transitions. [2023-11-25 00:00:18,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:00:18,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 14 [2023-11-25 00:00:18,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:00:18,183 INFO L225 Difference]: With dead ends: 107 [2023-11-25 00:00:18,183 INFO L226 Difference]: Without dead ends: 93 [2023-11-25 00:00:18,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:00:18,185 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 20 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-25 00:00:18,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 58 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-25 00:00:18,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-25 00:00:18,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2023-11-25 00:00:18,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 58 states have (on average 1.5689655172413792) internal successors, (91), 87 states have internal predecessors, (91), 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) [2023-11-25 00:00:18,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 95 transitions. [2023-11-25 00:00:18,194 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 95 transitions. Word has length 14 [2023-11-25 00:00:18,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:00:18,195 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 95 transitions. [2023-11-25 00:00:18,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2023-11-25 00:00:18,195 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 95 transitions. [2023-11-25 00:00:18,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-25 00:00:18,196 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:00:18,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:00:18,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-25 00:00:18,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:00:18,420 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-25 00:00:18,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:00:18,421 INFO L85 PathProgramCache]: Analyzing trace with hash -347247934, now seen corresponding path program 1 times [2023-11-25 00:00:18,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:00:18,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919192592] [2023-11-25 00:00:18,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:18,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:00:18,437 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:00:18,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1468887107] [2023-11-25 00:00:18,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:18,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:00:18,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:00:18,441 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:00:18,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-25 00:00:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:00:18,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-25 00:00:18,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:00:18,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:00:18,555 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:00:18,555 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:00:18,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919192592] [2023-11-25 00:00:18,555 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:00:18,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468887107] [2023-11-25 00:00:18,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468887107] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:00:18,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:00:18,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:00:18,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680152007] [2023-11-25 00:00:18,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:00:18,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:00:18,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:00:18,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:00:18,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:00:18,559 INFO L87 Difference]: Start difference. First operand 91 states and 95 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2023-11-25 00:00:18,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:00:18,574 INFO L93 Difference]: Finished difference Result 91 states and 95 transitions. [2023-11-25 00:00:18,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:00:18,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) Word has length 20 [2023-11-25 00:00:18,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:00:18,576 INFO L225 Difference]: With dead ends: 91 [2023-11-25 00:00:18,577 INFO L226 Difference]: Without dead ends: 90 [2023-11-25 00:00:18,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:00:18,578 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 47 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:00:18,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 61 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:00:18,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-11-25 00:00:18,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2023-11-25 00:00:18,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 58 states have (on average 1.5344827586206897) internal successors, (89), 86 states have internal predecessors, (89), 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) [2023-11-25 00:00:18,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 93 transitions. [2023-11-25 00:00:18,588 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 93 transitions. Word has length 20 [2023-11-25 00:00:18,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:00:18,589 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 93 transitions. [2023-11-25 00:00:18,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2023-11-25 00:00:18,590 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 93 transitions. [2023-11-25 00:00:18,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-25 00:00:18,591 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:00:18,591 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:00:18,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-25 00:00:18,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:00:18,798 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-25 00:00:18,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:00:18,798 INFO L85 PathProgramCache]: Analyzing trace with hash 2120216010, now seen corresponding path program 1 times [2023-11-25 00:00:18,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:00:18,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583591120] [2023-11-25 00:00:18,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:18,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:00:18,810 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:00:18,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [964901572] [2023-11-25 00:00:18,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:18,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:00:18,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:00:18,812 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:00:18,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-25 00:00:18,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:00:18,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-25 00:00:18,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:00:18,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:00:18,927 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:00:18,927 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:00:18,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583591120] [2023-11-25 00:00:18,928 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:00:18,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964901572] [2023-11-25 00:00:18,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964901572] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:00:18,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:00:18,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:00:18,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017366944] [2023-11-25 00:00:18,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:00:18,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:00:18,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:00:18,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:00:18,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:00:18,931 INFO L87 Difference]: Start difference. First operand 90 states and 93 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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) [2023-11-25 00:00:18,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:00:18,950 INFO L93 Difference]: Finished difference Result 91 states and 93 transitions. [2023-11-25 00:00:18,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:00:18,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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) Word has length 21 [2023-11-25 00:00:18,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:00:18,952 INFO L225 Difference]: With dead ends: 91 [2023-11-25 00:00:18,952 INFO L226 Difference]: Without dead ends: 90 [2023-11-25 00:00:18,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:00:18,954 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 0 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:00:18,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 122 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:00:18,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-11-25 00:00:18,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2023-11-25 00:00:18,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 58 states have (on average 1.5172413793103448) internal successors, (88), 86 states have internal predecessors, (88), 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) [2023-11-25 00:00:18,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 92 transitions. [2023-11-25 00:00:18,962 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 92 transitions. Word has length 21 [2023-11-25 00:00:18,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:00:18,963 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 92 transitions. [2023-11-25 00:00:18,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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) [2023-11-25 00:00:18,963 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 92 transitions. [2023-11-25 00:00:18,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-25 00:00:18,965 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:00:18,965 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:00:18,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-25 00:00:19,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:00:19,172 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-25 00:00:19,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:00:19,173 INFO L85 PathProgramCache]: Analyzing trace with hash -949603278, now seen corresponding path program 1 times [2023-11-25 00:00:19,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:00:19,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915006810] [2023-11-25 00:00:19,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:19,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:00:19,185 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:00:19,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1033377668] [2023-11-25 00:00:19,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:19,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:00:19,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:00:19,187 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:00:19,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-25 00:00:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:00:19,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:00:19,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:00:19,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:00:19,377 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:00:19,378 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:00:19,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915006810] [2023-11-25 00:00:19,378 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:00:19,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033377668] [2023-11-25 00:00:19,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033377668] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:00:19,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:00:19,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-25 00:00:19,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430460923] [2023-11-25 00:00:19,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:00:19,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:00:19,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:00:19,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:00:19,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:00:19,387 INFO L87 Difference]: Start difference. First operand 90 states and 92 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 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) [2023-11-25 00:00:19,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:00:19,436 INFO L93 Difference]: Finished difference Result 90 states and 92 transitions. [2023-11-25 00:00:19,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:00:19,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 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) Word has length 29 [2023-11-25 00:00:19,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:00:19,438 INFO L225 Difference]: With dead ends: 90 [2023-11-25 00:00:19,438 INFO L226 Difference]: Without dead ends: 89 [2023-11-25 00:00:19,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-25 00:00:19,441 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 44 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:00:19,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 174 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:00:19,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-25 00:00:19,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-11-25 00:00:19,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 58 states have (on average 1.5) internal successors, (87), 85 states have internal predecessors, (87), 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) [2023-11-25 00:00:19,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 91 transitions. [2023-11-25 00:00:19,462 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 91 transitions. Word has length 29 [2023-11-25 00:00:19,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:00:19,463 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 91 transitions. [2023-11-25 00:00:19,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 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) [2023-11-25 00:00:19,463 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 91 transitions. [2023-11-25 00:00:19,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-25 00:00:19,465 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:00:19,465 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:00:19,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-25 00:00:19,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:00:19,670 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-25 00:00:19,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:00:19,671 INFO L85 PathProgramCache]: Analyzing trace with hash 627069495, now seen corresponding path program 1 times [2023-11-25 00:00:19,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:00:19,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465777037] [2023-11-25 00:00:19,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:19,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:00:19,683 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:00:19,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1891452813] [2023-11-25 00:00:19,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:19,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:00:19,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:00:19,685 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:00:19,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-25 00:00:19,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:00:19,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:00:19,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:00:19,814 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:00:19,814 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:00:19,814 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:00:19,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465777037] [2023-11-25 00:00:19,815 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:00:19,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891452813] [2023-11-25 00:00:19,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891452813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:00:19,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:00:19,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-25 00:00:19,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926548814] [2023-11-25 00:00:19,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:00:19,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:00:19,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:00:19,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:00:19,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:00:19,820 INFO L87 Difference]: Start difference. First operand 89 states and 91 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 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) [2023-11-25 00:00:19,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:00:19,862 INFO L93 Difference]: Finished difference Result 109 states and 110 transitions. [2023-11-25 00:00:19,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-25 00:00:19,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 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) Word has length 30 [2023-11-25 00:00:19,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:00:19,867 INFO L225 Difference]: With dead ends: 109 [2023-11-25 00:00:19,867 INFO L226 Difference]: Without dead ends: 108 [2023-11-25 00:00:19,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-25 00:00:19,869 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 41 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:00:19,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 248 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:00:19,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-11-25 00:00:19,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 88. [2023-11-25 00:00:19,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 58 states have (on average 1.4827586206896552) internal successors, (86), 84 states have internal predecessors, (86), 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) [2023-11-25 00:00:19,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 90 transitions. [2023-11-25 00:00:19,878 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 90 transitions. Word has length 30 [2023-11-25 00:00:19,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:00:19,879 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 90 transitions. [2023-11-25 00:00:19,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 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) [2023-11-25 00:00:19,879 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 90 transitions. [2023-11-25 00:00:19,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-25 00:00:19,882 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:00:19,882 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:00:19,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-25 00:00:20,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:00:20,089 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-25 00:00:20,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:00:20,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1318364729, now seen corresponding path program 1 times [2023-11-25 00:00:20,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:00:20,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076577410] [2023-11-25 00:00:20,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:20,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:00:20,101 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:00:20,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1373539873] [2023-11-25 00:00:20,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:20,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:00:20,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:00:20,103 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:00:20,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-25 00:00:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:00:20,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-25 00:00:20,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:00:20,239 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:00:20,239 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:00:20,324 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:00:20,325 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:00:20,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076577410] [2023-11-25 00:00:20,325 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:00:20,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373539873] [2023-11-25 00:00:20,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373539873] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-25 00:00:20,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1314925965] [2023-11-25 00:00:20,353 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2023-11-25 00:00:20,353 INFO L166 IcfgInterpreter]: Building call graph [2023-11-25 00:00:20,357 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-25 00:00:20,364 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-25 00:00:20,365 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-25 00:00:21,742 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 36 for LOIs [2023-11-25 00:00:21,755 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-25 00:00:23,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1314925965] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:00:23,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-25 00:00:23,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5, 6] total 15 [2023-11-25 00:00:23,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073192884] [2023-11-25 00:00:23,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:00:23,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-25 00:00:23,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:00:23,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-25 00:00:23,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2023-11-25 00:00:23,457 INFO L87 Difference]: Start difference. First operand 88 states and 90 transitions. Second operand has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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) [2023-11-25 00:00:25,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:00:25,015 INFO L93 Difference]: Finished difference Result 108 states and 109 transitions. [2023-11-25 00:00:25,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-25 00:00:25,015 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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) Word has length 32 [2023-11-25 00:00:25,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:00:25,016 INFO L225 Difference]: With dead ends: 108 [2023-11-25 00:00:25,016 INFO L226 Difference]: Without dead ends: 71 [2023-11-25 00:00:25,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 76 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2023-11-25 00:00:25,018 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 10 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-25 00:00:25,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 58 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-25 00:00:25,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-25 00:00:25,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 51. [2023-11-25 00:00:25,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 48 states have internal predecessors, (49), 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) [2023-11-25 00:00:25,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2023-11-25 00:00:25,026 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 32 [2023-11-25 00:00:25,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:00:25,026 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2023-11-25 00:00:25,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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) [2023-11-25 00:00:25,026 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2023-11-25 00:00:25,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-25 00:00:25,028 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:00:25,028 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:00:25,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-25 00:00:25,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-25 00:00:25,229 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-25 00:00:25,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:00:25,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1318364712, now seen corresponding path program 1 times [2023-11-25 00:00:25,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:00:25,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473251941] [2023-11-25 00:00:25,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:25,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:00:25,238 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:00:25,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [285408110] [2023-11-25 00:00:25,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:25,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:00:25,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:00:25,251 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:00:25,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-25 00:00:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:00:25,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-25 00:00:25,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:00:25,593 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:00:25,593 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:00:25,747 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:00:25,747 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:00:25,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473251941] [2023-11-25 00:00:25,748 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:00:25,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285408110] [2023-11-25 00:00:25,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [285408110] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-25 00:00:25,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [554017777] [2023-11-25 00:00:25,754 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2023-11-25 00:00:25,755 INFO L166 IcfgInterpreter]: Building call graph [2023-11-25 00:00:25,755 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-25 00:00:25,756 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-25 00:00:25,756 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-25 00:00:26,679 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 36 for LOIs [2023-11-25 00:00:26,687 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-25 00:00:28,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [554017777] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:00:28,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-25 00:00:28,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [3, 3] total 15 [2023-11-25 00:00:28,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191296469] [2023-11-25 00:00:28,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:00:28,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-25 00:00:28,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:00:28,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-25 00:00:28,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-11-25 00:00:28,240 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand has 12 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 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) [2023-11-25 00:00:28,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:00:28,888 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2023-11-25 00:00:28,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-25 00:00:28,888 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 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) Word has length 32 [2023-11-25 00:00:28,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:00:28,889 INFO L225 Difference]: With dead ends: 51 [2023-11-25 00:00:28,889 INFO L226 Difference]: Without dead ends: 41 [2023-11-25 00:00:28,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 77 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2023-11-25 00:00:28,890 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-25 00:00:28,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-25 00:00:28,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-25 00:00:28,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-11-25 00:00:28,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 38 states have (on average 1.0263157894736843) internal successors, (39), 38 states have internal predecessors, (39), 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) [2023-11-25 00:00:28,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2023-11-25 00:00:28,896 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 32 [2023-11-25 00:00:28,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:00:28,896 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2023-11-25 00:00:28,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 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) [2023-11-25 00:00:28,899 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2023-11-25 00:00:28,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-25 00:00:28,904 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:00:28,904 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:00:28,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-25 00:00:29,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-25 00:00:29,110 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-25 00:00:29,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:00:29,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1270582704, now seen corresponding path program 1 times [2023-11-25 00:00:29,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:00:29,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552698962] [2023-11-25 00:00:29,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:29,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:00:29,130 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:00:29,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1098530952] [2023-11-25 00:00:29,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:29,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:00:29,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:00:29,138 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:00:29,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-25 00:00:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:00:29,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-25 00:00:29,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:00:30,121 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:00:30,121 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:00:33,201 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:00:33,201 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:00:33,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552698962] [2023-11-25 00:00:33,202 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:00:33,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098530952] [2023-11-25 00:00:33,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098530952] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-25 00:00:33,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-25 00:00:33,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2023-11-25 00:00:33,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775465427] [2023-11-25 00:00:33,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:00:33,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-25 00:00:33,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:00:33,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-25 00:00:33,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=107, Unknown=1, NotChecked=0, Total=156 [2023-11-25 00:00:33,205 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand has 8 states, 6 states have (on average 6.333333333333333) internal successors, (38), 8 states have internal predecessors, (38), 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) [2023-11-25 00:00:37,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:00:37,537 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2023-11-25 00:00:37,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-25 00:00:37,538 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 6.333333333333333) internal successors, (38), 8 states have internal predecessors, (38), 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) Word has length 40 [2023-11-25 00:00:37,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:00:37,538 INFO L225 Difference]: With dead ends: 59 [2023-11-25 00:00:37,538 INFO L226 Difference]: Without dead ends: 0 [2023-11-25 00:00:37,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=68, Invalid=141, Unknown=1, NotChecked=0, Total=210 [2023-11-25 00:00:37,540 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 72 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-25 00:00:37,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 44 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-25 00:00:37,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-25 00:00:37,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-25 00:00:37,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:00:37,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-25 00:00:37,542 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2023-11-25 00:00:37,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:00:37,542 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-25 00:00:37,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 6.333333333333333) internal successors, (38), 8 states have internal predecessors, (38), 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) [2023-11-25 00:00:37,543 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-25 00:00:37,543 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-25 00:00:37,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 30 remaining) [2023-11-25 00:00:37,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 30 remaining) [2023-11-25 00:00:37,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 30 remaining) [2023-11-25 00:00:37,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 30 remaining) [2023-11-25 00:00:37,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 30 remaining) [2023-11-25 00:00:37,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 30 remaining) [2023-11-25 00:00:37,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 30 remaining) [2023-11-25 00:00:37,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 30 remaining) [2023-11-25 00:00:37,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 30 remaining) [2023-11-25 00:00:37,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 30 remaining) [2023-11-25 00:00:37,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 30 remaining) [2023-11-25 00:00:37,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 30 remaining) [2023-11-25 00:00:37,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 30 remaining) [2023-11-25 00:00:37,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 30 remaining) [2023-11-25 00:00:37,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 30 remaining) [2023-11-25 00:00:37,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 30 remaining) [2023-11-25 00:00:37,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 30 remaining) [2023-11-25 00:00:37,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 30 remaining) [2023-11-25 00:00:37,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 30 remaining) [2023-11-25 00:00:37,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 30 remaining) [2023-11-25 00:00:37,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 30 remaining) [2023-11-25 00:00:37,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 30 remaining) [2023-11-25 00:00:37,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 30 remaining) [2023-11-25 00:00:37,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 30 remaining) [2023-11-25 00:00:37,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 30 remaining) [2023-11-25 00:00:37,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 30 remaining) [2023-11-25 00:00:37,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 30 remaining) [2023-11-25 00:00:37,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 30 remaining) [2023-11-25 00:00:37,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 30 remaining) [2023-11-25 00:00:37,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 30 remaining) [2023-11-25 00:00:37,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-25 00:00:37,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-25 00:00:37,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-25 00:00:38,179 INFO L899 garLoopResultBuilder]: For program point L35-2(line 35) no Hoare annotation was computed. [2023-11-25 00:00:38,179 INFO L899 garLoopResultBuilder]: For program point L35-3(line 35) no Hoare annotation was computed. [2023-11-25 00:00:38,179 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-25 00:00:38,179 INFO L899 garLoopResultBuilder]: For program point L35-4(line 35) no Hoare annotation was computed. [2023-11-25 00:00:38,179 INFO L899 garLoopResultBuilder]: For program point L35-5(line 35) no Hoare annotation was computed. [2023-11-25 00:00:38,179 INFO L899 garLoopResultBuilder]: For program point L35-6(line 35) no Hoare annotation was computed. [2023-11-25 00:00:38,179 INFO L899 garLoopResultBuilder]: For program point L35-7(line 35) no Hoare annotation was computed. [2023-11-25 00:00:38,180 INFO L899 garLoopResultBuilder]: For program point L35-8(line 35) no Hoare annotation was computed. [2023-11-25 00:00:38,180 INFO L899 garLoopResultBuilder]: For program point L35-9(line 35) no Hoare annotation was computed. [2023-11-25 00:00:38,180 INFO L895 garLoopResultBuilder]: At program point L35-10(line 35) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 2147483648)) (<= |ULTIMATE.start_main_~z~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~z~0#1| 2147483648)) (= |ULTIMATE.start_main_~c~0#1| 1) (= 2 (select |#length| 1)) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~x~0#1| 1) (= |ULTIMATE.start_main_~y~0#1| 1) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select .cse0 0) 48) (= ~counter~0 1) (= 10 (select |#length| 2)) (= (select .cse0 1) 0))) [2023-11-25 00:00:38,180 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2023-11-25 00:00:38,180 INFO L899 garLoopResultBuilder]: For program point L35-11(lines 34 43) no Hoare annotation was computed. [2023-11-25 00:00:38,181 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-25 00:00:38,181 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-25 00:00:38,181 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-25 00:00:38,181 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2023-11-25 00:00:38,181 INFO L899 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2023-11-25 00:00:38,182 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-25 00:00:38,182 INFO L899 garLoopResultBuilder]: For program point L44-2(line 44) no Hoare annotation was computed. [2023-11-25 00:00:38,182 INFO L899 garLoopResultBuilder]: For program point L44-3(line 44) no Hoare annotation was computed. [2023-11-25 00:00:38,182 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-25 00:00:38,182 INFO L899 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2023-11-25 00:00:38,182 INFO L899 garLoopResultBuilder]: For program point L44-4(line 44) no Hoare annotation was computed. [2023-11-25 00:00:38,182 INFO L899 garLoopResultBuilder]: For program point L40-1(line 40) no Hoare annotation was computed. [2023-11-25 00:00:38,183 INFO L899 garLoopResultBuilder]: For program point L44-5(line 44) no Hoare annotation was computed. [2023-11-25 00:00:38,183 INFO L899 garLoopResultBuilder]: For program point L44-6(line 44) no Hoare annotation was computed. [2023-11-25 00:00:38,183 INFO L899 garLoopResultBuilder]: For program point L44-7(line 44) no Hoare annotation was computed. [2023-11-25 00:00:38,183 INFO L899 garLoopResultBuilder]: For program point L44-8(line 44) no Hoare annotation was computed. [2023-11-25 00:00:38,183 INFO L902 garLoopResultBuilder]: At program point L44-9(line 44) the Hoare annotation is: true [2023-11-25 00:00:38,183 INFO L899 garLoopResultBuilder]: For program point L44-10(line 44) no Hoare annotation was computed. [2023-11-25 00:00:38,183 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2023-11-25 00:00:38,184 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-25 00:00:38,184 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-25 00:00:38,184 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-25 00:00:38,184 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-25 00:00:38,184 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-25 00:00:38,185 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-25 00:00:38,185 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-25 00:00:38,186 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2023-11-25 00:00:38,186 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2023-11-25 00:00:38,186 INFO L899 garLoopResultBuilder]: For program point L41-2(line 41) no Hoare annotation was computed. [2023-11-25 00:00:38,186 INFO L899 garLoopResultBuilder]: For program point L41-3(line 41) no Hoare annotation was computed. [2023-11-25 00:00:38,186 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2023-11-25 00:00:38,186 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-25 00:00:38,187 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-25 00:00:38,187 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-25 00:00:38,187 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-25 00:00:38,187 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-25 00:00:38,189 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-25 00:00:38,190 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-25 00:00:38,190 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-25 00:00:38,190 INFO L899 garLoopResultBuilder]: For program point L42(line 42) no Hoare annotation was computed. [2023-11-25 00:00:38,190 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-25 00:00:38,190 INFO L899 garLoopResultBuilder]: For program point L42-1(line 42) no Hoare annotation was computed. [2023-11-25 00:00:38,190 INFO L899 garLoopResultBuilder]: For program point L34-1(line 34) no Hoare annotation was computed. [2023-11-25 00:00:38,190 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-25 00:00:38,191 INFO L899 garLoopResultBuilder]: For program point L34-2(line 34) no Hoare annotation was computed. [2023-11-25 00:00:38,191 INFO L899 garLoopResultBuilder]: For program point L34-3(lines 34 43) no Hoare annotation was computed. [2023-11-25 00:00:38,191 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-25 00:00:38,191 INFO L895 garLoopResultBuilder]: At program point L34-5(lines 34 43) the Hoare annotation is: (let ((.cse11 (select |#memory_int| 1))) (let ((.cse0 (= (select |#length| 3) 12)) (.cse1 (<= 1 |#StackHeapBarrier|)) (.cse2 (= 2 (select |#length| 1))) (.cse3 (<= |ULTIMATE.start_main_~k~0#1| 2147483647)) (.cse4 (= (select |#valid| 3) 1)) (.cse5 (= (select |#valid| 1) 1)) (.cse6 (= (select |#valid| 0) 0)) (.cse7 (= (select |#valid| 2) 1)) (.cse8 (= (select .cse11 0) 48)) (.cse9 (= 10 (select |#length| 2))) (.cse10 (= (select .cse11 1) 0))) (or (and (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) .cse0 .cse1 (<= 2 |ULTIMATE.start_main_~k~0#1|) .cse2 .cse3 .cse4 (<= 0 (+ 2147483647 |ULTIMATE.start_main_~x~0#1|)) .cse5 (= |ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~z~0#1| 1)) .cse6 .cse7 .cse8 (= ~counter~0 1) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) .cse9 (= 2 |ULTIMATE.start_main_~c~0#1|) .cse10) (and .cse0 .cse1 (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 2147483648)) (<= |ULTIMATE.start_main_~z~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~z~0#1| 2147483648)) (= |ULTIMATE.start_main_~c~0#1| 1) .cse2 .cse3 .cse4 (= |ULTIMATE.start_main_~x~0#1| 1) (= |ULTIMATE.start_main_~y~0#1| 1) (= ~counter~0 0) .cse5 .cse6 .cse7 .cse8 .cse9 .cse10)))) [2023-11-25 00:00:38,191 INFO L899 garLoopResultBuilder]: For program point L34-6(lines 34 43) no Hoare annotation was computed. [2023-11-25 00:00:38,192 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2023-11-25 00:00:38,192 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-25 00:00:38,193 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-25 00:00:38,193 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-25 00:00:38,193 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-25 00:00:38,194 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2023-11-25 00:00:38,194 INFO L899 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2023-11-25 00:00:38,194 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed. [2023-11-25 00:00:38,194 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 14 20) the Hoare annotation is: true [2023-11-25 00:00:38,197 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:00:38,200 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-25 00:00:38,219 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-25 00:00:38,220 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-25 00:00:38,220 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-25 00:00:38,221 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-25 00:00:38,221 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-25 00:00:38,221 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-25 00:00:38,221 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-25 00:00:38,221 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-25 00:00:38,222 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-25 00:00:38,222 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-25 00:00:38,222 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-25 00:00:38,222 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-25 00:00:38,222 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-25 00:00:38,223 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-25 00:00:38,223 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-25 00:00:38,223 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-25 00:00:38,223 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-25 00:00:38,223 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-25 00:00:38,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 12:00:38 BoogieIcfgContainer [2023-11-25 00:00:38,224 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-25 00:00:38,224 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-25 00:00:38,224 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-25 00:00:38,225 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-25 00:00:38,225 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:00:12" (3/4) ... [2023-11-25 00:00:38,227 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-25 00:00:38,231 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-25 00:00:38,240 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-25 00:00:38,240 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-25 00:00:38,241 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-25 00:00:38,241 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-25 00:00:38,358 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/witness.graphml [2023-11-25 00:00:38,358 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/witness.yml [2023-11-25 00:00:38,358 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-25 00:00:38,359 INFO L158 Benchmark]: Toolchain (without parser) took 26371.31ms. Allocated memory was 184.5MB in the beginning and 268.4MB in the end (delta: 83.9MB). Free memory was 137.1MB in the beginning and 202.8MB in the end (delta: -65.6MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2023-11-25 00:00:38,360 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 140.5MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:00:38,360 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.35ms. Allocated memory is still 184.5MB. Free memory was 136.4MB in the beginning and 125.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-25 00:00:38,361 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.93ms. Allocated memory is still 184.5MB. Free memory was 125.9MB in the beginning and 124.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:00:38,361 INFO L158 Benchmark]: Boogie Preprocessor took 27.37ms. Allocated memory is still 184.5MB. Free memory was 124.6MB in the beginning and 123.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:00:38,362 INFO L158 Benchmark]: RCFGBuilder took 507.72ms. Allocated memory is still 184.5MB. Free memory was 123.1MB in the beginning and 107.1MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-25 00:00:38,362 INFO L158 Benchmark]: TraceAbstraction took 25348.38ms. Allocated memory was 184.5MB in the beginning and 268.4MB in the end (delta: 83.9MB). Free memory was 106.4MB in the beginning and 208.0MB in the end (delta: -101.6MB). Peak memory consumption was 107.4MB. Max. memory is 16.1GB. [2023-11-25 00:00:38,363 INFO L158 Benchmark]: Witness Printer took 133.96ms. Allocated memory is still 268.4MB. Free memory was 208.0MB in the beginning and 202.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-25 00:00:38,369 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 140.5MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.35ms. Allocated memory is still 184.5MB. Free memory was 136.4MB in the beginning and 125.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.93ms. Allocated memory is still 184.5MB. Free memory was 125.9MB in the beginning and 124.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.37ms. Allocated memory is still 184.5MB. Free memory was 124.6MB in the beginning and 123.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 507.72ms. Allocated memory is still 184.5MB. Free memory was 123.1MB in the beginning and 107.1MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 25348.38ms. Allocated memory was 184.5MB in the beginning and 268.4MB in the end (delta: 83.9MB). Free memory was 106.4MB in the beginning and 208.0MB in the end (delta: -101.6MB). Peak memory consumption was 107.4MB. Max. memory is 16.1GB. * Witness Printer took 133.96ms. Allocated memory is still 268.4MB. Free memory was 208.0MB in the beginning and 202.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 70 locations, 30 error locations. Started 1 CEGAR loops. OverallTime: 25.2s, OverallIterations: 13, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 393 SdHoareTripleChecker+Valid, 7.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 387 mSDsluCounter, 1152 SdHoareTripleChecker+Invalid, 7.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 624 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1297 IncrementalHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 528 mSDtfsCounter, 1297 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 421 GetRequests, 352 SyntacticMatches, 8 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred in iteration=5, InterpolantAutomatonStates: 69, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 101 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 7 PreInvPairs, 10 NumberOfFragments, 246 HoareAnnotationTreeSize, 7 FomulaSimplifications, 805 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 276 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 259 NumberOfCodeBlocks, 259 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 347 ConstructedInterpolants, 20 QuantifiedInterpolants, 2710 SizeOfPredicates, 8 NumberOfNonLiveVariables, 752 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 17/31 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 2.3s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 60, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 127, TOOLS_POST_TIME: 1.4s, TOOLS_POST_CALL_APPLICATIONS: 10, TOOLS_POST_CALL_TIME: 0.2s, TOOLS_POST_RETURN_APPLICATIONS: 8, TOOLS_POST_RETURN_TIME: 0.2s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 125, TOOLS_QUANTIFIERELIM_TIME: 1.7s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 206, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 21, DOMAIN_JOIN_TIME: 0.3s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 60, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME: 0.3s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.3s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 8, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.1s, DAG_COMPRESSION_PROCESSED_NODES: 2078, DAG_COMPRESSION_RETAINED_NODES: 218, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 30 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((((((((y == z) && (2 <= k)) && (k <= 2147483647)) && (0 <= (2147483647 + x))) && (x == (z + 1))) && (counter == 1)) && (y <= 2147483647)) && (2 == c)) || ((((((((0 <= (k + 2147483648)) && (z <= 2147483647)) && (0 <= (z + 2147483648))) && (c == 1)) && (k <= 2147483647)) && (x == 1)) && (y == 1)) && (counter == 0))) RESULT: Ultimate proved your program to be correct! [2023-11-25 00:00:38,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b7f76f-0a3c-45d2-86dc-add1cac25fb9/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE