./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh --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 c64519b027f84aaa6a30cfc5331268c119119293d8d39650b6d0c4f1af71d8d4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:28:39,523 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:28:39,598 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-12-02 13:28:39,603 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:28:39,603 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:28:39,640 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:28:39,641 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:28:39,642 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:28:39,642 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:28:39,643 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:28:39,644 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:28:39,644 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:28:39,645 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:28:39,645 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:28:39,646 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:28:39,646 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:28:39,647 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:28:39,647 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:28:39,660 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:28:39,660 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:28:39,661 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:28:39,662 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:28:39,663 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:28:39,663 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:28:39,663 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:28:39,664 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:28:39,664 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:28:39,665 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:28:39,665 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:28:39,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:28:39,666 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:28:39,667 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 13:28:39,667 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 13:28:39,667 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:28:39,667 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:28:39,668 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:28:39,668 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:28:39,668 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:28:39,668 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:28:39,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:28:39,669 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:28:39,669 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:28:39,669 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:28:39,669 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:28:39,670 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:28:39,670 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:28:39,670 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:28:39,670 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:28:39,670 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:28:39,670 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_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c64519b027f84aaa6a30cfc5331268c119119293d8d39650b6d0c4f1af71d8d4 [2023-12-02 13:28:39,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:28:39,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:28:39,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:28:39,942 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:28:39,943 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:28:39,944 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound50.c [2023-12-02 13:28:42,767 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:28:42,991 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:28:42,991 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound50.c [2023-12-02 13:28:42,999 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/data/5952e7406/7524a521ab0e4d6e9a3f0f43f33c4ff8/FLAG9da3ff4b9 [2023-12-02 13:28:43,014 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/data/5952e7406/7524a521ab0e4d6e9a3f0f43f33c4ff8 [2023-12-02 13:28:43,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:28:43,019 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:28:43,020 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:28:43,020 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:28:43,025 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:28:43,026 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:28:43" (1/1) ... [2023-12-02 13:28:43,027 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4db83f1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:28:43, skipping insertion in model container [2023-12-02 13:28:43,027 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:28:43" (1/1) ... [2023-12-02 13:28:43,049 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:28:43,245 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:28:43,255 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:28:43,273 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:28:43,287 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:28:43,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:28:43 WrapperNode [2023-12-02 13:28:43,288 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:28:43,289 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:28:43,290 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:28:43,290 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:28:43,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:28:43" (1/1) ... [2023-12-02 13:28:43,306 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:28:43" (1/1) ... [2023-12-02 13:28:43,330 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2023-12-02 13:28:43,330 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:28:43,331 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:28:43,331 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:28:43,331 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:28:43,343 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:28:43" (1/1) ... [2023-12-02 13:28:43,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:28:43" (1/1) ... [2023-12-02 13:28:43,345 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:28:43" (1/1) ... [2023-12-02 13:28:43,345 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:28:43" (1/1) ... [2023-12-02 13:28:43,349 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:28:43" (1/1) ... [2023-12-02 13:28:43,352 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:28:43" (1/1) ... [2023-12-02 13:28:43,354 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:28:43" (1/1) ... [2023-12-02 13:28:43,355 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:28:43" (1/1) ... [2023-12-02 13:28:43,357 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:28:43,358 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:28:43,358 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:28:43,358 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:28:43,359 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:28:43" (1/1) ... [2023-12-02 13:28:43,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:28:43,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:28:43,395 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:28:43,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:28:43,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:28:43,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:28:43,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:28:43,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:28:43,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 13:28:43,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 13:28:43,495 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:28:43,497 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:28:43,702 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:28:43,746 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:28:43,746 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:28:43,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:28:43 BoogieIcfgContainer [2023-12-02 13:28:43,749 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:28:43,752 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:28:43,752 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:28:43,756 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:28:43,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:28:43" (1/3) ... [2023-12-02 13:28:43,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bfce4db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:28:43, skipping insertion in model container [2023-12-02 13:28:43,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:28:43" (2/3) ... [2023-12-02 13:28:43,758 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bfce4db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:28:43, skipping insertion in model container [2023-12-02 13:28:43,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:28:43" (3/3) ... [2023-12-02 13:28:43,759 INFO L112 eAbstractionObserver]: Analyzing ICFG ps2-ll_valuebound50.c [2023-12-02 13:28:43,780 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:28:43,781 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-12-02 13:28:43,829 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:28:43,835 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;@1de51241, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:28:43,835 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-12-02 13:28:43,839 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 27 states have (on average 1.8888888888888888) internal successors, (51), 49 states have internal predecessors, (51), 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) [2023-12-02 13:28:43,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-02 13:28:43,844 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:28:43,845 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-12-02 13:28:43,845 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-12-02 13:28:43,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:28:43,850 INFO L85 PathProgramCache]: Analyzing trace with hash 130312, now seen corresponding path program 1 times [2023-12-02 13:28:43,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:28:43,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516005759] [2023-12-02 13:28:43,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:43,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:28:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:28:44,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:28:44,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:28:44,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516005759] [2023-12-02 13:28:44,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516005759] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:28:44,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:28:44,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 13:28:44,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760858174] [2023-12-02 13:28:44,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:28:44,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 13:28:44,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:28:44,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 13:28:44,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 13:28:44,049 INFO L87 Difference]: Start difference. First operand has 53 states, 27 states have (on average 1.8888888888888888) internal successors, (51), 49 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:28:44,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:28:44,086 INFO L93 Difference]: Finished difference Result 73 states and 75 transitions. [2023-12-02 13:28:44,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 13:28:44,089 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-12-02 13:28:44,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:28:44,098 INFO L225 Difference]: With dead ends: 73 [2023-12-02 13:28:44,099 INFO L226 Difference]: Without dead ends: 48 [2023-12-02 13:28:44,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 13:28:44,107 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:28:44,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 13:28:44,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-12-02 13:28:44,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-12-02 13:28:44,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 26 states have (on average 1.7692307692307692) internal successors, (46), 45 states have internal predecessors, (46), 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) [2023-12-02 13:28:44,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2023-12-02 13:28:44,156 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 3 [2023-12-02 13:28:44,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:28:44,157 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2023-12-02 13:28:44,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:28:44,157 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2023-12-02 13:28:44,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 13:28:44,158 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:28:44,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 13:28:44,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:28:44,159 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-12-02 13:28:44,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:28:44,160 INFO L85 PathProgramCache]: Analyzing trace with hash 4039724, now seen corresponding path program 1 times [2023-12-02 13:28:44,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:28:44,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280509650] [2023-12-02 13:28:44,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:44,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:28:44,176 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:28:44,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1814189351] [2023-12-02 13:28:44,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:44,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:28:44,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:28:44,183 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:28:44,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 13:28:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:28:44,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:28:44,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:28:44,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:28:44,271 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:28:44,272 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:28:44,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280509650] [2023-12-02 13:28:44,272 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 13:28:44,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814189351] [2023-12-02 13:28:44,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814189351] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:28:44,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:28:44,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 13:28:44,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314510825] [2023-12-02 13:28:44,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:28:44,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:28:44,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:28:44,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:28:44,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:28:44,277 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:28:44,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:28:44,415 INFO L93 Difference]: Finished difference Result 89 states and 90 transitions. [2023-12-02 13:28:44,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:28:44,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-12-02 13:28:44,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:28:44,418 INFO L225 Difference]: With dead ends: 89 [2023-12-02 13:28:44,419 INFO L226 Difference]: Without dead ends: 85 [2023-12-02 13:28:44,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:28:44,422 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 33 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:28:44,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 42 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:28:44,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-12-02 13:28:44,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 65. [2023-12-02 13:28:44,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 61 states have internal predecessors, (71), 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) [2023-12-02 13:28:44,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 75 transitions. [2023-12-02 13:28:44,437 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 75 transitions. Word has length 4 [2023-12-02 13:28:44,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:28:44,437 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 75 transitions. [2023-12-02 13:28:44,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:28:44,438 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2023-12-02 13:28:44,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 13:28:44,438 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:28:44,439 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 13:28:44,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 13:28:44,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-02 13:28:44,640 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-12-02 13:28:44,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:28:44,641 INFO L85 PathProgramCache]: Analyzing trace with hash 125231498, now seen corresponding path program 1 times [2023-12-02 13:28:44,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:28:44,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200252675] [2023-12-02 13:28:44,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:44,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:28:44,651 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:28:44,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [483597673] [2023-12-02 13:28:44,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:44,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:28:44,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:28:44,654 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:28:44,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 13:28:44,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:28:44,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 13:28:44,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:28:44,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:28:44,720 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:28:44,720 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:28:44,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200252675] [2023-12-02 13:28:44,721 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 13:28:44,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483597673] [2023-12-02 13:28:44,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483597673] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:28:44,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:28:44,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 13:28:44,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021298429] [2023-12-02 13:28:44,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:28:44,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:28:44,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:28:44,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:28:44,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:28:44,725 INFO L87 Difference]: Start difference. First operand 65 states and 75 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-12-02 13:28:44,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:28:44,850 INFO L93 Difference]: Finished difference Result 83 states and 90 transitions. [2023-12-02 13:28:44,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:28:44,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2023-12-02 13:28:44,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:28:44,852 INFO L225 Difference]: With dead ends: 83 [2023-12-02 13:28:44,853 INFO L226 Difference]: Without dead ends: 81 [2023-12-02 13:28:44,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:28:44,855 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 34 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:28:44,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 40 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:28:44,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-12-02 13:28:44,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 66. [2023-12-02 13:28:44,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 43 states have (on average 1.6511627906976745) internal successors, (71), 62 states have internal predecessors, (71), 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) [2023-12-02 13:28:44,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 75 transitions. [2023-12-02 13:28:44,867 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 75 transitions. Word has length 5 [2023-12-02 13:28:44,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:28:44,868 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 75 transitions. [2023-12-02 13:28:44,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-12-02 13:28:44,868 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 75 transitions. [2023-12-02 13:28:44,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 13:28:44,869 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:28:44,869 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-12-02 13:28:44,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 13:28:45,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:28:45,075 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-12-02 13:28:45,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:28:45,076 INFO L85 PathProgramCache]: Analyzing trace with hash -412790802, now seen corresponding path program 1 times [2023-12-02 13:28:45,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:28:45,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110241889] [2023-12-02 13:28:45,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:45,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:28:45,086 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:28:45,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1296658642] [2023-12-02 13:28:45,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:45,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:28:45,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:28:45,088 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:28:45,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 13:28:45,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:28:45,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 13:28:45,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:28:45,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:28:45,140 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:28:45,141 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:28:45,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110241889] [2023-12-02 13:28:45,141 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 13:28:45,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296658642] [2023-12-02 13:28:45,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296658642] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:28:45,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:28:45,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 13:28:45,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603395360] [2023-12-02 13:28:45,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:28:45,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:28:45,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:28:45,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:28:45,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:28:45,143 INFO L87 Difference]: Start difference. First operand 66 states and 75 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) [2023-12-02 13:28:45,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:28:45,278 INFO L93 Difference]: Finished difference Result 87 states and 88 transitions. [2023-12-02 13:28:45,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:28:45,279 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 [2023-12-02 13:28:45,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:28:45,280 INFO L225 Difference]: With dead ends: 87 [2023-12-02 13:28:45,280 INFO L226 Difference]: Without dead ends: 81 [2023-12-02 13:28:45,281 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 [2023-12-02 13:28:45,282 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 27 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:28:45,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 46 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:28:45,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-12-02 13:28:45,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 70. [2023-12-02 13:28:45,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 47 states have (on average 1.553191489361702) internal successors, (73), 66 states have internal predecessors, (73), 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) [2023-12-02 13:28:45,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 77 transitions. [2023-12-02 13:28:45,293 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 77 transitions. Word has length 6 [2023-12-02 13:28:45,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:28:45,293 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 77 transitions. [2023-12-02 13:28:45,293 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) [2023-12-02 13:28:45,294 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2023-12-02 13:28:45,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 13:28:45,294 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:28:45,294 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:28:45,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 13:28:45,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:28:45,495 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-12-02 13:28:45,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:28:45,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1554967632, now seen corresponding path program 1 times [2023-12-02 13:28:45,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:28:45,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810628100] [2023-12-02 13:28:45,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:45,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:28:45,505 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:28:45,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1982038292] [2023-12-02 13:28:45,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:45,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:28:45,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:28:45,507 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:28:45,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 13:28:45,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:28:45,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:28:45,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:28:45,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:28:45,604 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:28:45,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:28:45,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810628100] [2023-12-02 13:28:45,604 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 13:28:45,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982038292] [2023-12-02 13:28:45,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982038292] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:28:45,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:28:45,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:28:45,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688174532] [2023-12-02 13:28:45,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:28:45,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:28:45,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:28:45,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:28:45,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:28:45,606 INFO L87 Difference]: Start difference. First operand 70 states and 77 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-12-02 13:28:45,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:28:45,712 INFO L93 Difference]: Finished difference Result 81 states and 82 transitions. [2023-12-02 13:28:45,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:28:45,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2023-12-02 13:28:45,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:28:45,713 INFO L225 Difference]: With dead ends: 81 [2023-12-02 13:28:45,713 INFO L226 Difference]: Without dead ends: 69 [2023-12-02 13:28:45,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:28:45,715 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 23 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:28:45,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 53 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:28:45,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-12-02 13:28:45,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 63. [2023-12-02 13:28:45,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 40 states have (on average 1.55) internal successors, (62), 59 states have internal predecessors, (62), 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) [2023-12-02 13:28:45,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 66 transitions. [2023-12-02 13:28:45,722 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 66 transitions. Word has length 8 [2023-12-02 13:28:45,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:28:45,731 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 66 transitions. [2023-12-02 13:28:45,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-12-02 13:28:45,731 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 66 transitions. [2023-12-02 13:28:45,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 13:28:45,732 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:28:45,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:28:45,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 13:28:45,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:28:45,933 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-12-02 13:28:45,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:28:45,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1804289987, now seen corresponding path program 1 times [2023-12-02 13:28:45,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:28:45,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138518686] [2023-12-02 13:28:45,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:45,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:28:45,943 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:28:45,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [590918133] [2023-12-02 13:28:45,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:45,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:28:45,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:28:45,945 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:28:45,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 13:28:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:28:45,986 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 13:28:45,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:28:46,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:28:46,029 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:28:46,030 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:28:46,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138518686] [2023-12-02 13:28:46,030 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 13:28:46,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590918133] [2023-12-02 13:28:46,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590918133] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:28:46,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:28:46,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:28:46,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693376705] [2023-12-02 13:28:46,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:28:46,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:28:46,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:28:46,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:28:46,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:28:46,034 INFO L87 Difference]: Start difference. First operand 63 states and 66 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2023-12-02 13:28:46,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:28:46,048 INFO L93 Difference]: Finished difference Result 63 states and 66 transitions. [2023-12-02 13:28:46,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:28:46,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 15 [2023-12-02 13:28:46,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:28:46,050 INFO L225 Difference]: With dead ends: 63 [2023-12-02 13:28:46,050 INFO L226 Difference]: Without dead ends: 62 [2023-12-02 13:28:46,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:28:46,051 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 32 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 41 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 [2023-12-02 13:28:46,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 41 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 13:28:46,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-12-02 13:28:46,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-12-02 13:28:46,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 40 states have (on average 1.5) internal successors, (60), 58 states have internal predecessors, (60), 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) [2023-12-02 13:28:46,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2023-12-02 13:28:46,060 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 15 [2023-12-02 13:28:46,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:28:46,061 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2023-12-02 13:28:46,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2023-12-02 13:28:46,062 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2023-12-02 13:28:46,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 13:28:46,062 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:28:46,063 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:28:46,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 13:28:46,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 13:28:46,263 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-12-02 13:28:46,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:28:46,264 INFO L85 PathProgramCache]: Analyzing trace with hash -98414675, now seen corresponding path program 1 times [2023-12-02 13:28:46,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:28:46,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966362978] [2023-12-02 13:28:46,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:46,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:28:46,274 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:28:46,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1365932668] [2023-12-02 13:28:46,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:46,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:28:46,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:28:46,276 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:28:46,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 13:28:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:28:46,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 13:28:46,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:28:46,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:28:46,344 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:28:46,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:28:46,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966362978] [2023-12-02 13:28:46,344 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 13:28:46,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365932668] [2023-12-02 13:28:46,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365932668] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:28:46,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:28:46,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:28:46,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221352273] [2023-12-02 13:28:46,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:28:46,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:28:46,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:28:46,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:28:46,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:28:46,347 INFO L87 Difference]: Start difference. First operand 62 states and 64 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 13:28:46,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:28:46,363 INFO L93 Difference]: Finished difference Result 63 states and 64 transitions. [2023-12-02 13:28:46,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:28:46,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-12-02 13:28:46,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:28:46,364 INFO L225 Difference]: With dead ends: 63 [2023-12-02 13:28:46,365 INFO L226 Difference]: Without dead ends: 62 [2023-12-02 13:28:46,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:28:46,366 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 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 [2023-12-02 13:28:46,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 13:28:46,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-12-02 13:28:46,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-12-02 13:28:46,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 40 states have (on average 1.475) internal successors, (59), 58 states have internal predecessors, (59), 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) [2023-12-02 13:28:46,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2023-12-02 13:28:46,374 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 16 [2023-12-02 13:28:46,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:28:46,375 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2023-12-02 13:28:46,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 13:28:46,375 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2023-12-02 13:28:46,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 13:28:46,376 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:28:46,376 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:28:46,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 13:28:46,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:28:46,582 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-12-02 13:28:46,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:28:46,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1591155777, now seen corresponding path program 1 times [2023-12-02 13:28:46,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:28:46,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312938064] [2023-12-02 13:28:46,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:46,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:28:46,592 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:28:46,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [412325437] [2023-12-02 13:28:46,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:46,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:28:46,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:28:46,594 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:28:46,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 13:28:46,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:28:46,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:28:46,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:28:46,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:28:46,744 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:28:46,744 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:28:46,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312938064] [2023-12-02 13:28:46,745 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 13:28:46,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412325437] [2023-12-02 13:28:46,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412325437] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:28:46,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:28:46,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:28:46,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964644301] [2023-12-02 13:28:46,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:28:46,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:28:46,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:28:46,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:28:46,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:28:46,747 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2023-12-02 13:28:46,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:28:46,837 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2023-12-02 13:28:46,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:28:46,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 19 [2023-12-02 13:28:46,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:28:46,838 INFO L225 Difference]: With dead ends: 62 [2023-12-02 13:28:46,838 INFO L226 Difference]: Without dead ends: 58 [2023-12-02 13:28:46,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:28:46,839 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 37 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:28:46,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 22 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:28:46,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-12-02 13:28:46,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-12-02 13:28:46,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 40 states have (on average 1.375) internal successors, (55), 54 states have internal predecessors, (55), 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) [2023-12-02 13:28:46,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2023-12-02 13:28:46,847 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 19 [2023-12-02 13:28:46,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:28:46,848 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2023-12-02 13:28:46,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2023-12-02 13:28:46,848 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2023-12-02 13:28:46,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 13:28:46,849 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:28:46,849 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] [2023-12-02 13:28:46,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-02 13:28:47,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-02 13:28:47,050 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-12-02 13:28:47,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:28:47,051 INFO L85 PathProgramCache]: Analyzing trace with hash 2081188913, now seen corresponding path program 1 times [2023-12-02 13:28:47,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:28:47,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174229689] [2023-12-02 13:28:47,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:47,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:28:47,058 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:28:47,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1372241013] [2023-12-02 13:28:47,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:47,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:28:47,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:28:47,059 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:28:47,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 13:28:47,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:28:47,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:28:47,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:28:47,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:28:47,193 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:28:47,193 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:28:47,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174229689] [2023-12-02 13:28:47,193 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 13:28:47,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372241013] [2023-12-02 13:28:47,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372241013] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:28:47,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:28:47,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:28:47,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517330962] [2023-12-02 13:28:47,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:28:47,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:28:47,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:28:47,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:28:47,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:28:47,196 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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) [2023-12-02 13:28:47,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:28:47,268 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2023-12-02 13:28:47,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:28:47,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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 [2023-12-02 13:28:47,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:28:47,269 INFO L225 Difference]: With dead ends: 61 [2023-12-02 13:28:47,270 INFO L226 Difference]: Without dead ends: 60 [2023-12-02 13:28:47,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:28:47,271 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:28:47,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:28:47,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-12-02 13:28:47,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-12-02 13:28:47,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 56 states have internal predecessors, (57), 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) [2023-12-02 13:28:47,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2023-12-02 13:28:47,278 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 20 [2023-12-02 13:28:47,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:28:47,279 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2023-12-02 13:28:47,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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) [2023-12-02 13:28:47,279 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2023-12-02 13:28:47,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 13:28:47,280 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:28:47,280 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] [2023-12-02 13:28:47,287 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-02 13:28:47,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-12-02 13:28:47,487 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-12-02 13:28:47,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:28:47,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1448930143, now seen corresponding path program 1 times [2023-12-02 13:28:47,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:28:47,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605779891] [2023-12-02 13:28:47,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:47,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:28:47,495 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:28:47,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [947702065] [2023-12-02 13:28:47,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:47,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:28:47,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:28:47,497 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:28:47,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-02 13:28:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:28:47,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 13:28:47,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:28:47,594 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:28:47,594 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:28:47,710 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:28:47,711 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:28:47,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605779891] [2023-12-02 13:28:47,711 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 13:28:47,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947702065] [2023-12-02 13:28:47,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947702065] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:28:47,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [817221581] [2023-12-02 13:28:47,737 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2023-12-02 13:28:47,737 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:28:47,741 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:28:47,748 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:28:47,749 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:28:49,142 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2023-12-02 13:28:49,157 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:28:50,353 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1783#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|) (<= 9223372036854775808 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (<= |ULTIMATE.start_main_~k~0#1| 50) (<= 1 |ULTIMATE.start_main_~k~0#1|))' at error location [2023-12-02 13:28:50,353 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 13:28:50,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 13:28:50,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-12-02 13:28:50,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548917460] [2023-12-02 13:28:50,354 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 13:28:50,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 13:28:50,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:28:50,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 13:28:50,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2023-12-02 13:28:50,355 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 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) [2023-12-02 13:28:50,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:28:50,544 INFO L93 Difference]: Finished difference Result 138 states and 147 transitions. [2023-12-02 13:28:50,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 13:28:50,545 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2023-12-02 13:28:50,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:28:50,546 INFO L225 Difference]: With dead ends: 138 [2023-12-02 13:28:50,546 INFO L226 Difference]: Without dead ends: 135 [2023-12-02 13:28:50,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 45 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2023-12-02 13:28:50,548 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 114 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:28:50,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 66 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 13:28:50,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-12-02 13:28:50,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 95. [2023-12-02 13:28:50,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 77 states have (on average 1.3766233766233766) internal successors, (106), 89 states have internal predecessors, (106), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 13:28:50,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 114 transitions. [2023-12-02 13:28:50,558 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 114 transitions. Word has length 23 [2023-12-02 13:28:50,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:28:50,558 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 114 transitions. [2023-12-02 13:28:50,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 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) [2023-12-02 13:28:50,559 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 114 transitions. [2023-12-02 13:28:50,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-02 13:28:50,560 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:28:50,560 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] [2023-12-02 13:28:50,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-02 13:28:50,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-02 13:28:50,766 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-12-02 13:28:50,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:28:50,766 INFO L85 PathProgramCache]: Analyzing trace with hash -852461789, now seen corresponding path program 1 times [2023-12-02 13:28:50,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:28:50,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989086500] [2023-12-02 13:28:50,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:50,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:28:50,775 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:28:50,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1767116022] [2023-12-02 13:28:50,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:50,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:28:50,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:28:50,777 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:28:50,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-02 13:28:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:28:50,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 13:28:50,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:28:50,904 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:28:50,904 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:28:50,967 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:28:50,968 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:28:50,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989086500] [2023-12-02 13:28:50,968 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 13:28:50,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767116022] [2023-12-02 13:28:50,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767116022] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:28:50,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [571155451] [2023-12-02 13:28:50,971 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2023-12-02 13:28:50,971 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:28:50,972 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:28:50,972 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:28:50,972 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:28:51,880 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2023-12-02 13:28:51,890 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:28:52,748 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2203#(and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= 4611686018427387904 |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 50) (<= |ULTIMATE.start_main_~y~0#1| 9223372036854775807))' at error location [2023-12-02 13:28:52,748 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 13:28:52,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 13:28:52,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-02 13:28:52,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304441454] [2023-12-02 13:28:52,748 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 13:28:52,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 13:28:52,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:28:52,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 13:28:52,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2023-12-02 13:28:52,750 INFO L87 Difference]: Start difference. First operand 95 states and 114 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 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) [2023-12-02 13:28:52,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:28:52,883 INFO L93 Difference]: Finished difference Result 110 states and 126 transitions. [2023-12-02 13:28:52,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 13:28:52,883 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2023-12-02 13:28:52,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:28:52,884 INFO L225 Difference]: With dead ends: 110 [2023-12-02 13:28:52,884 INFO L226 Difference]: Without dead ends: 103 [2023-12-02 13:28:52,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 49 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2023-12-02 13:28:52,886 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 99 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:28:52,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 40 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:28:52,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-12-02 13:28:52,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 90. [2023-12-02 13:28:52,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 77 states have (on average 1.2207792207792207) internal successors, (94), 84 states have internal predecessors, (94), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 13:28:52,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 102 transitions. [2023-12-02 13:28:52,893 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 102 transitions. Word has length 25 [2023-12-02 13:28:52,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:28:52,893 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 102 transitions. [2023-12-02 13:28:52,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 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) [2023-12-02 13:28:52,894 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 102 transitions. [2023-12-02 13:28:52,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-02 13:28:52,894 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:28:52,895 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:28:52,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-02 13:28:53,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:28:53,100 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-12-02 13:28:53,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:28:53,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1122976165, now seen corresponding path program 1 times [2023-12-02 13:28:53,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:28:53,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088170936] [2023-12-02 13:28:53,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:53,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:28:53,108 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:28:53,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [722504256] [2023-12-02 13:28:53,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:53,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:28:53,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:28:53,109 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:28:53,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-02 13:28:53,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:28:53,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 13:28:53,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:28:53,264 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:28:53,265 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:28:53,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:28:53,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088170936] [2023-12-02 13:28:53,265 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 13:28:53,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722504256] [2023-12-02 13:28:53,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722504256] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:28:53,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:28:53,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 13:28:53,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388338216] [2023-12-02 13:28:53,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:28:53,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 13:28:53,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:28:53,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 13:28:53,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 13:28:53,267 INFO L87 Difference]: Start difference. First operand 90 states and 102 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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) [2023-12-02 13:28:53,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:28:53,325 INFO L93 Difference]: Finished difference Result 90 states and 102 transitions. [2023-12-02 13:28:53,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 13:28:53,326 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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 27 [2023-12-02 13:28:53,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:28:53,326 INFO L225 Difference]: With dead ends: 90 [2023-12-02 13:28:53,327 INFO L226 Difference]: Without dead ends: 78 [2023-12-02 13:28:53,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 13:28:53,327 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 37 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:28:53,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 27 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:28:53,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-12-02 13:28:53,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-12-02 13:28:53,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 69 states have (on average 1.1014492753623188) internal successors, (76), 72 states have internal predecessors, (76), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 13:28:53,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 84 transitions. [2023-12-02 13:28:53,333 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 84 transitions. Word has length 27 [2023-12-02 13:28:53,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:28:53,333 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 84 transitions. [2023-12-02 13:28:53,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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) [2023-12-02 13:28:53,333 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 84 transitions. [2023-12-02 13:28:53,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-02 13:28:53,334 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:28:53,334 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:28:53,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-02 13:28:53,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:28:53,535 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-12-02 13:28:53,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:28:53,535 INFO L85 PathProgramCache]: Analyzing trace with hash 146913442, now seen corresponding path program 1 times [2023-12-02 13:28:53,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:28:53,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816680184] [2023-12-02 13:28:53,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:53,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:28:53,541 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:28:53,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [337948949] [2023-12-02 13:28:53,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:53,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:28:53,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:28:53,542 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:28:53,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-02 13:28:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:28:53,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:28:53,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:28:53,618 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 13:28:53,618 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:28:53,656 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 13:28:53,657 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:28:53,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816680184] [2023-12-02 13:28:53,657 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 13:28:53,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337948949] [2023-12-02 13:28:53,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337948949] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:28:53,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [755006219] [2023-12-02 13:28:53,659 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2023-12-02 13:28:53,659 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:28:53,660 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:28:53,660 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:28:53,660 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:28:54,344 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2023-12-02 13:28:54,355 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:28:55,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [755006219] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:28:55,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 13:28:55,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [3, 3] total 17 [2023-12-02 13:28:55,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439940907] [2023-12-02 13:28:55,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:28:55,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 13:28:55,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:28:55,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 13:28:55,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2023-12-02 13:28:55,047 INFO L87 Difference]: Start difference. First operand 78 states and 84 transitions. Second operand has 14 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 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) [2023-12-02 13:28:55,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:28:55,616 INFO L93 Difference]: Finished difference Result 78 states and 84 transitions. [2023-12-02 13:28:55,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 13:28:55,617 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 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 35 [2023-12-02 13:28:55,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:28:55,618 INFO L225 Difference]: With dead ends: 78 [2023-12-02 13:28:55,618 INFO L226 Difference]: Without dead ends: 76 [2023-12-02 13:28:55,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 79 SyntacticMatches, 8 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2023-12-02 13:28:55,619 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 71 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:28:55,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 12 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 13:28:55,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-02 13:28:55,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-12-02 13:28:55,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 69 states have (on average 1.0289855072463767) internal successors, (71), 70 states have internal predecessors, (71), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 13:28:55,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2023-12-02 13:28:55,625 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 35 [2023-12-02 13:28:55,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:28:55,625 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2023-12-02 13:28:55,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 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) [2023-12-02 13:28:55,626 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2023-12-02 13:28:55,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-02 13:28:55,627 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:28:55,627 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2023-12-02 13:28:55,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-02 13:28:55,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:28:55,830 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-12-02 13:28:55,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:28:55,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1511549251, now seen corresponding path program 2 times [2023-12-02 13:28:55,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:28:55,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044585726] [2023-12-02 13:28:55,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:55,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:28:55,837 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:28:55,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [856079271] [2023-12-02 13:28:55,837 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 13:28:55,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:28:55,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:28:55,838 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:28:55,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-02 13:28:56,186 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-02 13:28:56,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 13:28:56,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 13:28:56,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:29:23,344 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-02 13:29:23,345 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:29:27,664 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-02 13:29:27,664 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:29:27,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044585726] [2023-12-02 13:29:27,664 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 13:29:27,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856079271] [2023-12-02 13:29:27,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856079271] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 13:29:27,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:29:27,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2023-12-02 13:29:27,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163970074] [2023-12-02 13:29:27,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:29:27,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 13:29:27,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:29:27,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 13:29:27,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=109, Unknown=7, NotChecked=0, Total=156 [2023-12-02 13:29:27,667 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand has 7 states, 5 states have (on average 6.2) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 13:29:31,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:29:31,897 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2023-12-02 13:29:31,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 13:29:31,898 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 6.2) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 63 [2023-12-02 13:29:31,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:29:31,898 INFO L225 Difference]: With dead ends: 76 [2023-12-02 13:29:31,899 INFO L226 Difference]: Without dead ends: 75 [2023-12-02 13:29:31,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 25.3s TimeCoverageRelationStatistics Valid=69, Invalid=194, Unknown=9, NotChecked=0, Total=272 [2023-12-02 13:29:31,900 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 65 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:29:31,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 18 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:29:31,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-12-02 13:29:31,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-12-02 13:29:31,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 69 states have (on average 1.0144927536231885) internal successors, (70), 69 states have internal predecessors, (70), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 13:29:31,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2023-12-02 13:29:31,906 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 63 [2023-12-02 13:29:31,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:29:31,906 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2023-12-02 13:29:31,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 6.2) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 13:29:31,907 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2023-12-02 13:29:31,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-02 13:29:31,908 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:29:31,908 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2023-12-02 13:29:31,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-12-02 13:29:32,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-12-02 13:29:32,109 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-12-02 13:29:32,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:29:32,109 INFO L85 PathProgramCache]: Analyzing trace with hash 383070188, now seen corresponding path program 2 times [2023-12-02 13:29:32,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:29:32,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51561165] [2023-12-02 13:29:32,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:29:32,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:29:32,116 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:29:32,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1767076807] [2023-12-02 13:29:32,116 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 13:29:32,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:29:32,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:29:32,117 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:29:32,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-02 13:29:32,881 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-12-02 13:29:32,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 13:29:32,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 13:29:32,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:29:33,357 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 3 proven. 114 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 13:29:33,358 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:30:34,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:30:34,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51561165] [2023-12-02 13:30:34,001 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 13:30:34,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767076807] [2023-12-02 13:30:34,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767076807] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:30:34,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1668066104] [2023-12-02 13:30:34,004 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2023-12-02 13:30:34,004 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:30:34,004 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:30:34,004 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:30:34,005 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:30:34,680 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2023-12-02 13:30:34,688 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:30:36,898 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4095#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|) (<= 9223372036854775808 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (<= |ULTIMATE.start_main_~k~0#1| 50) (<= 1 |ULTIMATE.start_main_~k~0#1|))' at error location [2023-12-02 13:30:36,898 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 13:30:36,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:30:36,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-12-02 13:30:36,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935118358] [2023-12-02 13:30:36,898 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-02 13:30:36,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-02 13:30:36,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:30:36,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-02 13:30:36,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=937, Unknown=4, NotChecked=0, Total=1122 [2023-12-02 13:30:36,900 INFO L87 Difference]: Start difference. First operand 75 states and 78 transitions. Second operand has 13 states, 11 states have (on average 6.363636363636363) internal successors, (70), 13 states have internal predecessors, (70), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 13:30:37,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:30:37,513 INFO L93 Difference]: Finished difference Result 105 states and 110 transitions. [2023-12-02 13:30:37,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-02 13:30:37,514 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.363636363636363) internal successors, (70), 13 states have internal predecessors, (70), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 80 [2023-12-02 13:30:37,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:30:37,515 INFO L225 Difference]: With dead ends: 105 [2023-12-02 13:30:37,515 INFO L226 Difference]: Without dead ends: 104 [2023-12-02 13:30:37,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 159 SyntacticMatches, 17 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 780 ImplicationChecksByTransitivity, 34.7s TimeCoverageRelationStatistics Valid=310, Invalid=1326, Unknown=4, NotChecked=0, Total=1640 [2023-12-02 13:30:37,516 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 140 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:30:37,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 76 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 13:30:37,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-12-02 13:30:37,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 92. [2023-12-02 13:30:37,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 85 states have (on average 1.011764705882353) internal successors, (86), 85 states have internal predecessors, (86), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 13:30:37,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 96 transitions. [2023-12-02 13:30:37,524 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 96 transitions. Word has length 80 [2023-12-02 13:30:37,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:30:37,524 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 96 transitions. [2023-12-02 13:30:37,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.363636363636363) internal successors, (70), 13 states have internal predecessors, (70), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 13:30:37,525 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 96 transitions. [2023-12-02 13:30:37,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-02 13:30:37,526 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:30:37,526 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1] [2023-12-02 13:30:37,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-12-02 13:30:37,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-02 13:30:37,727 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-12-02 13:30:37,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:30:37,727 INFO L85 PathProgramCache]: Analyzing trace with hash -562925343, now seen corresponding path program 3 times [2023-12-02 13:30:37,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:30:37,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534834221] [2023-12-02 13:30:37,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:30:37,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:30:37,735 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:30:37,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [744222593] [2023-12-02 13:30:37,735 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 13:30:37,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:30:37,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:30:37,736 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:30:37,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-02 13:30:37,795 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 13:30:37,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 13:30:37,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 13:30:37,798 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:30:37,936 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 185 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:30:37,936 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:30:38,216 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 185 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:30:38,217 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:30:38,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534834221] [2023-12-02 13:30:38,217 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 13:30:38,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744222593] [2023-12-02 13:30:38,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744222593] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:30:38,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1941814021] [2023-12-02 13:30:38,219 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2023-12-02 13:30:38,220 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:30:38,220 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:30:38,220 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:30:38,220 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:30:38,877 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2023-12-02 13:30:38,885 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:30:40,863 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4946#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|) (<= 9223372036854775808 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (<= |ULTIMATE.start_main_~k~0#1| 50) (<= 1 |ULTIMATE.start_main_~k~0#1|))' at error location [2023-12-02 13:30:40,863 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 13:30:40,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 13:30:40,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-12-02 13:30:40,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913198107] [2023-12-02 13:30:40,864 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 13:30:40,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 13:30:40,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:30:40,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 13:30:40,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=584, Unknown=0, NotChecked=0, Total=702 [2023-12-02 13:30:40,866 INFO L87 Difference]: Start difference. First operand 92 states and 96 transitions. Second operand has 14 states, 13 states have (on average 13.0) internal successors, (169), 14 states have internal predecessors, (169), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-02 13:30:41,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:30:41,407 INFO L93 Difference]: Finished difference Result 212 states and 229 transitions. [2023-12-02 13:30:41,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 13:30:41,407 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 13.0) internal successors, (169), 14 states have internal predecessors, (169), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 99 [2023-12-02 13:30:41,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:30:41,409 INFO L225 Difference]: With dead ends: 212 [2023-12-02 13:30:41,409 INFO L226 Difference]: Without dead ends: 211 [2023-12-02 13:30:41,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 249 SyntacticMatches, 21 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=188, Invalid=804, Unknown=0, NotChecked=0, Total=992 [2023-12-02 13:30:41,410 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 90 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:30:41,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 296 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 13:30:41,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-12-02 13:30:41,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2023-12-02 13:30:41,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 197 states have (on average 1.0050761421319796) internal successors, (198), 197 states have internal predecessors, (198), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-02 13:30:41,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 222 transitions. [2023-12-02 13:30:41,430 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 222 transitions. Word has length 99 [2023-12-02 13:30:41,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:30:41,430 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 222 transitions. [2023-12-02 13:30:41,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 13.0) internal successors, (169), 14 states have internal predecessors, (169), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-02 13:30:41,431 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 222 transitions. [2023-12-02 13:30:41,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-12-02 13:30:41,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:30:41,435 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1] [2023-12-02 13:30:41,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-02 13:30:41,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-02 13:30:41,635 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-12-02 13:30:41,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:30:41,636 INFO L85 PathProgramCache]: Analyzing trace with hash 597649260, now seen corresponding path program 4 times [2023-12-02 13:30:41,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:30:41,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23795115] [2023-12-02 13:30:41,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:30:41,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:30:41,653 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:30:41,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2036472192] [2023-12-02 13:30:41,654 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-02 13:30:41,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:30:41,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:30:41,655 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:30:41,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-02 13:30:41,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:30:41,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-02 13:30:41,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:30:42,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1290 backedges. 0 proven. 1158 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-12-02 13:30:42,287 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:30:43,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1290 backedges. 0 proven. 1158 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-12-02 13:30:43,112 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:30:43,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23795115] [2023-12-02 13:30:43,112 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 13:30:43,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036472192] [2023-12-02 13:30:43,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036472192] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:30:43,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [686124286] [2023-12-02 13:30:43,114 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2023-12-02 13:30:43,115 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:30:43,115 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:30:43,115 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:30:43,115 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:30:43,671 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2023-12-02 13:30:43,680 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:30:48,230 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6858#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|) (<= 9223372036854775808 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (<= |ULTIMATE.start_main_~k~0#1| 50) (<= 1 |ULTIMATE.start_main_~k~0#1|))' at error location [2023-12-02 13:30:48,230 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 13:30:48,230 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 13:30:48,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2023-12-02 13:30:48,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578820909] [2023-12-02 13:30:48,231 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 13:30:48,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 13:30:48,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:30:48,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 13:30:48,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=1361, Unknown=0, NotChecked=0, Total=1640 [2023-12-02 13:30:48,234 INFO L87 Difference]: Start difference. First operand 211 states and 222 transitions. Second operand has 28 states, 27 states have (on average 14.555555555555555) internal successors, (393), 28 states have internal predecessors, (393), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-02 13:30:50,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:30:50,228 INFO L93 Difference]: Finished difference Result 450 states and 488 transitions. [2023-12-02 13:30:50,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 13:30:50,228 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 14.555555555555555) internal successors, (393), 28 states have internal predecessors, (393), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Word has length 232 [2023-12-02 13:30:50,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:30:50,231 INFO L225 Difference]: With dead ends: 450 [2023-12-02 13:30:50,231 INFO L226 Difference]: Without dead ends: 449 [2023-12-02 13:30:50,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 706 GetRequests, 606 SyntacticMatches, 49 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1452 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=615, Invalid=2141, Unknown=0, NotChecked=0, Total=2756 [2023-12-02 13:30:50,233 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 156 mSDsluCounter, 1204 mSDsCounter, 0 mSdLazyCounter, 2001 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 1309 SdHoareTripleChecker+Invalid, 2015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:30:50,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 1309 Invalid, 2015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2001 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-02 13:30:50,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2023-12-02 13:30:50,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449. [2023-12-02 13:30:50,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 421 states have (on average 1.002375296912114) internal successors, (422), 421 states have internal predecessors, (422), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-02 13:30:50,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 474 transitions. [2023-12-02 13:30:50,258 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 474 transitions. Word has length 232 [2023-12-02 13:30:50,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:30:50,259 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 474 transitions. [2023-12-02 13:30:50,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 14.555555555555555) internal successors, (393), 28 states have internal predecessors, (393), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-02 13:30:50,260 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 474 transitions. [2023-12-02 13:30:50,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2023-12-02 13:30:50,266 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:30:50,267 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 1, 1] [2023-12-02 13:30:50,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-02 13:30:50,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-02 13:30:50,467 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-12-02 13:30:50,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:30:50,468 INFO L85 PathProgramCache]: Analyzing trace with hash 480421004, now seen corresponding path program 5 times [2023-12-02 13:30:50,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:30:50,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207899002] [2023-12-02 13:30:50,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:30:50,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:30:50,489 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:30:50,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1238830400] [2023-12-02 13:30:50,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 13:30:50,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:30:50,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:30:50,490 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:30:50,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-02 13:32:20,255 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2023-12-02 13:32:20,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 13:32:20,276 INFO L262 TraceCheckSpWp]: Trace formula consists of 813 conjuncts, 71 conjunts are in the unsatisfiable core [2023-12-02 13:32:20,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:32:23,677 INFO L134 CoverageAnalysis]: Checked inductivity of 6253 backedges. 21 proven. 5607 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2023-12-02 13:32:23,677 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:32:38,963 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:32:38,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207899002] [2023-12-02 13:32:38,964 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 13:32:38,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238830400] [2023-12-02 13:32:38,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238830400] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:32:38,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [43021949] [2023-12-02 13:32:38,966 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2023-12-02 13:32:38,966 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:32:38,967 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:32:38,967 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:32:38,967 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:32:39,568 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2023-12-02 13:32:39,576 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:32:53,415 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9895#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|) (<= 9223372036854775808 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (<= |ULTIMATE.start_main_~k~0#1| 50) (<= 1 |ULTIMATE.start_main_~k~0#1|))' at error location [2023-12-02 13:32:53,415 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 13:32:53,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:32:53,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55] total 55 [2023-12-02 13:32:53,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038935509] [2023-12-02 13:32:53,415 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-02 13:32:53,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2023-12-02 13:32:53,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:32:53,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2023-12-02 13:32:53,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1423, Invalid=5379, Unknown=4, NotChecked=0, Total=6806 [2023-12-02 13:32:53,421 INFO L87 Difference]: Start difference. First operand 449 states and 474 transitions. Second operand has 56 states, 54 states have (on average 7.814814814814815) internal successors, (422), 56 states have internal predecessors, (422), 26 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-02 13:33:00,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:33:00,580 INFO L93 Difference]: Finished difference Result 480 states and 507 transitions. [2023-12-02 13:33:00,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-12-02 13:33:00,581 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 54 states have (on average 7.814814814814815) internal successors, (422), 56 states have internal predecessors, (422), 26 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Word has length 498 [2023-12-02 13:33:00,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:33:00,584 INFO L225 Difference]: With dead ends: 480 [2023-12-02 13:33:00,584 INFO L226 Difference]: Without dead ends: 479 [2023-12-02 13:33:00,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1190 GetRequests, 953 SyntacticMatches, 105 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10624 ImplicationChecksByTransitivity, 35.1s TimeCoverageRelationStatistics Valid=4152, Invalid=13666, Unknown=4, NotChecked=0, Total=17822 [2023-12-02 13:33:00,591 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 899 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:33:00,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 191 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-02 13:33:00,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2023-12-02 13:33:00,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 466. [2023-12-02 13:33:00,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 437 states have (on average 1.002288329519451) internal successors, (438), 437 states have internal predecessors, (438), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 13:33:00,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 492 transitions. [2023-12-02 13:33:00,633 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 492 transitions. Word has length 498 [2023-12-02 13:33:00,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:33:00,634 INFO L495 AbstractCegarLoop]: Abstraction has 466 states and 492 transitions. [2023-12-02 13:33:00,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 54 states have (on average 7.814814814814815) internal successors, (422), 56 states have internal predecessors, (422), 26 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-02 13:33:00,634 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 492 transitions. [2023-12-02 13:33:00,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2023-12-02 13:33:00,642 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:33:00,642 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 1, 1] [2023-12-02 13:33:00,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-12-02 13:33:00,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-02 13:33:00,843 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-12-02 13:33:00,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:33:00,843 INFO L85 PathProgramCache]: Analyzing trace with hash 2110683201, now seen corresponding path program 6 times [2023-12-02 13:33:00,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:33:00,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869248376] [2023-12-02 13:33:00,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:33:00,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:33:00,866 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:33:00,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1572527721] [2023-12-02 13:33:00,866 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 13:33:00,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:33:00,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:33:00,868 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:33:00,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-02 13:33:01,013 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 13:33:01,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 13:33:01,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 843 conjuncts, 57 conjunts are in the unsatisfiable core [2023-12-02 13:33:01,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:33:01,866 INFO L134 CoverageAnalysis]: Checked inductivity of 6750 backedges. 0 proven. 6048 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2023-12-02 13:33:01,866 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:33:04,432 INFO L134 CoverageAnalysis]: Checked inductivity of 6750 backedges. 0 proven. 6048 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2023-12-02 13:33:04,432 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:33:04,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869248376] [2023-12-02 13:33:04,433 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 13:33:04,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572527721] [2023-12-02 13:33:04,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572527721] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:33:04,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1946176459] [2023-12-02 13:33:04,435 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2023-12-02 13:33:04,435 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:33:04,435 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:33:04,436 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:33:04,436 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:33:05,000 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2023-12-02 13:33:05,009 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:33:19,187 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14224#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|) (<= 9223372036854775808 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (<= |ULTIMATE.start_main_~k~0#1| 50) (<= 1 |ULTIMATE.start_main_~k~0#1|))' at error location [2023-12-02 13:33:19,187 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 13:33:19,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 13:33:19,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 57 [2023-12-02 13:33:19,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954028537] [2023-12-02 13:33:19,188 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 13:33:19,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2023-12-02 13:33:19,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:33:19,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2023-12-02 13:33:19,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=954, Invalid=4016, Unknown=0, NotChecked=0, Total=4970 [2023-12-02 13:33:19,192 INFO L87 Difference]: Start difference. First operand 466 states and 492 transitions. Second operand has 58 states, 57 states have (on average 15.31578947368421) internal successors, (873), 58 states have internal predecessors, (873), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-02 13:33:27,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:33:27,871 INFO L93 Difference]: Finished difference Result 960 states and 1043 transitions. [2023-12-02 13:33:27,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-12-02 13:33:27,872 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 15.31578947368421) internal successors, (873), 58 states have internal predecessors, (873), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Word has length 517 [2023-12-02 13:33:27,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:33:27,877 INFO L225 Difference]: With dead ends: 960 [2023-12-02 13:33:27,878 INFO L226 Difference]: Without dead ends: 959 [2023-12-02 13:33:27,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1576 GetRequests, 1371 SyntacticMatches, 109 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5037 ImplicationChecksByTransitivity, 20.4s TimeCoverageRelationStatistics Valid=2520, Invalid=6986, Unknown=0, NotChecked=0, Total=9506 [2023-12-02 13:33:27,882 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 321 mSDsluCounter, 5511 mSDsCounter, 0 mSdLazyCounter, 8929 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 5736 SdHoareTripleChecker+Invalid, 8958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 8929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-02 13:33:27,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 5736 Invalid, 8958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 8929 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-12-02 13:33:27,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2023-12-02 13:33:27,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 959. [2023-12-02 13:33:27,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 901 states have (on average 1.0011098779134295) internal successors, (902), 901 states have internal predecessors, (902), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-12-02 13:33:27,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1014 transitions. [2023-12-02 13:33:27,951 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1014 transitions. Word has length 517 [2023-12-02 13:33:27,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:33:27,952 INFO L495 AbstractCegarLoop]: Abstraction has 959 states and 1014 transitions. [2023-12-02 13:33:27,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 15.31578947368421) internal successors, (873), 58 states have internal predecessors, (873), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-02 13:33:27,953 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1014 transitions. [2023-12-02 13:33:27,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1069 [2023-12-02 13:33:27,962 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:33:27,962 INFO L195 NwaCegarLoop]: trace histogram [57, 57, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 1, 1] [2023-12-02 13:33:27,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-12-02 13:33:28,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:33:28,163 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-12-02 13:33:28,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:33:28,164 INFO L85 PathProgramCache]: Analyzing trace with hash -572299092, now seen corresponding path program 7 times [2023-12-02 13:33:28,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:33:28,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36352680] [2023-12-02 13:33:28,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:33:28,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:33:28,200 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:33:28,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1019760700] [2023-12-02 13:33:28,200 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-02 13:33:28,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:33:28,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:33:28,202 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:33:28,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-02 13:33:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:33:28,485 INFO L262 TraceCheckSpWp]: Trace formula consists of 1713 conjuncts, 53 conjunts are in the unsatisfiable core [2023-12-02 13:33:28,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:33:33,864 INFO L134 CoverageAnalysis]: Checked inductivity of 29428 backedges. 26643 proven. 0 refuted. 0 times theorem prover too weak. 2785 trivial. 0 not checked. [2023-12-02 13:33:33,864 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:33:33,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:33:33,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36352680] [2023-12-02 13:33:33,865 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 13:33:33,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019760700] [2023-12-02 13:33:33,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019760700] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:33:33,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:33:33,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [] total 53 [2023-12-02 13:33:33,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191276542] [2023-12-02 13:33:33,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:33:33,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2023-12-02 13:33:33,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:33:33,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2023-12-02 13:33:33,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2023-12-02 13:33:33,870 INFO L87 Difference]: Start difference. First operand 959 states and 1014 transitions. Second operand has 53 states, 53 states have (on average 15.660377358490566) internal successors, (830), 53 states have internal predecessors, (830), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-02 13:33:35,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:33:35,006 INFO L93 Difference]: Finished difference Result 961 states and 1015 transitions. [2023-12-02 13:33:35,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-12-02 13:33:35,007 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 15.660377358490566) internal successors, (830), 53 states have internal predecessors, (830), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Word has length 1068 [2023-12-02 13:33:35,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:33:35,009 INFO L225 Difference]: With dead ends: 961 [2023-12-02 13:33:35,010 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 13:33:35,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1067 GetRequests, 1016 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2023-12-02 13:33:35,013 INFO L413 NwaCegarLoop]: 761 mSDtfsCounter, 0 mSDsluCounter, 3456 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4217 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-02 13:33:35,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4217 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-02 13:33:35,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 13:33:35,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 13:33:35,014 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) [2023-12-02 13:33:35,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 13:33:35,014 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1068 [2023-12-02 13:33:35,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:33:35,014 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 13:33:35,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 15.660377358490566) internal successors, (830), 53 states have internal predecessors, (830), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-02 13:33:35,015 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 13:33:35,015 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 13:33:35,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2023-12-02 13:33:35,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2023-12-02 13:33:35,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2023-12-02 13:33:35,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2023-12-02 13:33:35,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2023-12-02 13:33:35,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2023-12-02 13:33:35,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2023-12-02 13:33:35,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2023-12-02 13:33:35,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2023-12-02 13:33:35,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2023-12-02 13:33:35,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2023-12-02 13:33:35,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2023-12-02 13:33:35,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2023-12-02 13:33:35,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2023-12-02 13:33:35,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2023-12-02 13:33:35,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2023-12-02 13:33:35,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2023-12-02 13:33:35,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2023-12-02 13:33:35,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2023-12-02 13:33:35,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2023-12-02 13:33:35,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2023-12-02 13:33:35,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2023-12-02 13:33:35,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-12-02 13:33:35,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:33:35,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 13:33:46,945 WARN L293 SmtUtils]: Spent 6.01s on a formula simplification. DAG size of input: 358 DAG size of output: 355 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-02 13:33:46,949 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-12-02 13:33:46,950 INFO L895 garLoopResultBuilder]: At program point L27-2(lines 27 36) the Hoare annotation is: (let ((.cse5 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse0 (<= 1 |#StackHeapBarrier|)) (.cse3 (<= 1 |ULTIMATE.start_main_~y~0#1|)) (.cse4 (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~k~0#1| 50)) (.cse2 (<= 1 |ULTIMATE.start_main_~k~0#1|)) (.cse6 (<= |ULTIMATE.start_main_~x~0#1| 4611686018427387903))) (or (and .cse0 (<= 9 |ULTIMATE.start_main_~c~0#1|) .cse1 .cse2 (= |ULTIMATE.start_main_~x~0#1| 45) (= 9 |ULTIMATE.start_main_~y~0#1|)) (and .cse0 (= 7 |ULTIMATE.start_main_~y~0#1|) .cse1 (<= 7 |ULTIMATE.start_main_~c~0#1|) .cse2 (= |ULTIMATE.start_main_~x~0#1| 28)) (and .cse0 (<= 11 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~y~0#1| 11) .cse1 .cse2 (= 66 |ULTIMATE.start_main_~x~0#1|)) (and .cse0 (= 16 |ULTIMATE.start_main_~y~0#1|) (<= 16 |ULTIMATE.start_main_~c~0#1|) .cse1 .cse2 (= |ULTIMATE.start_main_~x~0#1| 136)) (and (= |ULTIMATE.start_main_~x~0#1| 36) .cse0 .cse1 (= |ULTIMATE.start_main_~y~0#1| 8) .cse2 (<= 8 |ULTIMATE.start_main_~c~0#1|)) (and .cse0 .cse3 (<= 42 |ULTIMATE.start_main_~c~0#1|) .cse4 (<= (+ (* |ULTIMATE.start_main_~y~0#1| 26) .cse5) 9223372036854775638) .cse1 .cse2 .cse6) (and .cse0 (= |ULTIMATE.start_main_~x~0#1| 300) (<= 24 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~y~0#1| 24) .cse1 .cse2) (and .cse0 .cse3 .cse4 (<= (+ (* 22 |ULTIMATE.start_main_~y~0#1|) .cse5) 9223372036854775686) .cse1 .cse2 (<= 44 |ULTIMATE.start_main_~c~0#1|) .cse6) (and .cse0 (<= 1 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~x~0#1| 1) (= |ULTIMATE.start_main_~y~0#1| 1) .cse1 .cse2) (and .cse0 .cse3 (<= (+ (* 30 |ULTIMATE.start_main_~y~0#1|) .cse5) 9223372036854775582) .cse4 .cse1 (<= 40 |ULTIMATE.start_main_~c~0#1|) .cse2 .cse6) (and .cse0 .cse3 .cse4 .cse1 (<= (+ (* 14 |ULTIMATE.start_main_~y~0#1|) .cse5) 9223372036854775758) .cse2 .cse6 (<= 48 |ULTIMATE.start_main_~c~0#1|)) (and (<= (+ (* |ULTIMATE.start_main_~y~0#1| 10) .cse5) 9223372036854775782) .cse0 .cse3 .cse4 .cse1 .cse2 .cse6 (<= 50 |ULTIMATE.start_main_~c~0#1|)) (and .cse0 (= 231 |ULTIMATE.start_main_~x~0#1|) (= 21 |ULTIMATE.start_main_~y~0#1|) .cse1 .cse2 (<= 21 |ULTIMATE.start_main_~c~0#1|)) (and (= 6 |ULTIMATE.start_main_~y~0#1|) .cse0 (= 21 |ULTIMATE.start_main_~x~0#1|) .cse1 (<= 6 |ULTIMATE.start_main_~c~0#1|) .cse2) (and (<= 2 |ULTIMATE.start_main_~c~0#1|) .cse0 (= 3 |ULTIMATE.start_main_~x~0#1|) (= 2 |ULTIMATE.start_main_~y~0#1|) .cse1 .cse2) (and .cse0 (= 5 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~x~0#1| 15) .cse1 (<= 5 |ULTIMATE.start_main_~c~0#1|) .cse2) (and .cse0 .cse3 .cse4 (<= 43 |ULTIMATE.start_main_~c~0#1|) .cse1 (<= (+ (* |ULTIMATE.start_main_~y~0#1| 24) .cse5) 9223372036854775663) .cse2 .cse6) (and .cse0 (= 3 |ULTIMATE.start_main_~y~0#1|) (<= 3 |ULTIMATE.start_main_~c~0#1|) .cse1 .cse2 (= 6 |ULTIMATE.start_main_~x~0#1|)) (and .cse0 (<= 10 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~y~0#1| 10) .cse1 .cse2 (= |ULTIMATE.start_main_~x~0#1| 55)) (and .cse0 .cse3 .cse4 .cse1 (<= (+ (* |ULTIMATE.start_main_~y~0#1| 12) .cse5) 9223372036854775771) .cse2 .cse6 (<= 49 |ULTIMATE.start_main_~c~0#1|)) (and .cse0 (<= 12 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~y~0#1| 12) .cse1 .cse2 (= |ULTIMATE.start_main_~x~0#1| 78)) (and .cse0 .cse3 .cse4 (<= 31 |ULTIMATE.start_main_~c~0#1|) .cse1 .cse2 (<= (+ (* |ULTIMATE.start_main_~y~0#1| 48) .cse5) 9223372036854775231) .cse6) (and .cse0 (= |ULTIMATE.start_main_~y~0#1| 17) (<= 17 |ULTIMATE.start_main_~c~0#1|) .cse1 .cse2 (= 153 |ULTIMATE.start_main_~x~0#1|)) (and .cse0 (= |ULTIMATE.start_main_~y~0#1| 4) .cse1 .cse2 (<= 4 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~x~0#1| 10)) (and (<= (+ (* 44 |ULTIMATE.start_main_~y~0#1|) .cse5) 9223372036854775323) .cse0 (<= 33 |ULTIMATE.start_main_~c~0#1|) .cse3 .cse4 .cse1 .cse2 .cse6) (and .cse0 .cse3 .cse4 .cse1 .cse2 (<= 36 |ULTIMATE.start_main_~c~0#1|) .cse6 (<= (+ (* |ULTIMATE.start_main_~y~0#1| 38) .cse5) 9223372036854775446)) (and .cse0 .cse3 (<= (+ (* |ULTIMATE.start_main_~y~0#1| 34) .cse5) 9223372036854775518) (<= 38 |ULTIMATE.start_main_~c~0#1|) .cse4 .cse1 .cse2 .cse6) (and .cse0 (<= 45 |ULTIMATE.start_main_~c~0#1|) .cse3 .cse4 (<= (+ (* |ULTIMATE.start_main_~y~0#1| 20) .cse5) 9223372036854775707) .cse1 .cse2 .cse6) (and .cse0 (= 22 |ULTIMATE.start_main_~y~0#1|) .cse1 (= 253 |ULTIMATE.start_main_~x~0#1|) .cse2 (<= 22 |ULTIMATE.start_main_~c~0#1|)) (and .cse0 (<= 13 |ULTIMATE.start_main_~c~0#1|) .cse1 .cse2 (= 91 |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~y~0#1| 13)) (and .cse0 (<= 18 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~y~0#1| 18) .cse1 (= 171 |ULTIMATE.start_main_~x~0#1|) .cse2) (and .cse0 (<= (+ (* 32 |ULTIMATE.start_main_~y~0#1|) .cse5) 9223372036854775551) .cse3 (<= 39 |ULTIMATE.start_main_~c~0#1|) .cse4 .cse1 .cse2 .cse6) (and .cse0 .cse3 (<= 34 |ULTIMATE.start_main_~c~0#1|) .cse4 .cse1 .cse2 (<= (+ (* 42 |ULTIMATE.start_main_~y~0#1|) .cse5) 9223372036854775366) .cse6) (and .cse0 (= |ULTIMATE.start_main_~x~0#1| 120) .cse1 .cse2 (<= 15 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~y~0#1| 15)) (and (<= (+ (* 52 |ULTIMATE.start_main_~y~0#1|) .cse5) 9223372036854775131) .cse0 .cse3 .cse4 (<= 29 |ULTIMATE.start_main_~c~0#1|) .cse1 .cse2 .cse6) (and .cse0 .cse3 .cse4 .cse1 .cse2 (<= 47 |ULTIMATE.start_main_~c~0#1|) .cse6 (<= (+ (* 16 |ULTIMATE.start_main_~y~0#1|) .cse5) 9223372036854775743)) (and (= 23 |ULTIMATE.start_main_~y~0#1|) (= 276 |ULTIMATE.start_main_~x~0#1|) .cse0 (<= 23 |ULTIMATE.start_main_~c~0#1|) .cse1 .cse2) (and .cse0 .cse3 (<= (+ (* |ULTIMATE.start_main_~y~0#1| 18) .cse5) 9223372036854775726) (<= 46 |ULTIMATE.start_main_~c~0#1|) .cse4 .cse1 .cse2 .cse6) (and .cse0 (= 14 |ULTIMATE.start_main_~y~0#1|) (<= 14 |ULTIMATE.start_main_~c~0#1|) .cse1 (= |ULTIMATE.start_main_~x~0#1| 105) .cse2) (and (<= (+ (* |ULTIMATE.start_main_~y~0#1| 36) .cse5) 9223372036854775483) .cse0 .cse3 (<= 37 |ULTIMATE.start_main_~c~0#1|) .cse4 .cse1 .cse2 .cse6) (and .cse0 (<= 25 |ULTIMATE.start_main_~c~0#1|) .cse1 (<= 25 |ULTIMATE.start_main_~x~0#1|) .cse2 .cse6 (= |ULTIMATE.start_main_~y~0#1| 25)) (and .cse0 (<= 27 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~y~0#1| 27) (<= 27 |ULTIMATE.start_main_~x~0#1|) .cse1 .cse2 .cse6) (and (= |ULTIMATE.start_main_~x~0#1| 210) .cse0 (= |ULTIMATE.start_main_~y~0#1| 20) .cse1 (<= 20 |ULTIMATE.start_main_~c~0#1|) .cse2) (and .cse0 .cse3 .cse4 .cse1 .cse2 .cse6 (<= 41 |ULTIMATE.start_main_~c~0#1|) (<= (+ (* |ULTIMATE.start_main_~y~0#1| 28) .cse5) 9223372036854775611)) (and .cse0 (<= 26 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~y~0#1| 26) (<= 26 |ULTIMATE.start_main_~x~0#1|) .cse1 .cse2 .cse6) (and (<= 19 |ULTIMATE.start_main_~c~0#1|) .cse0 .cse1 .cse2 (= 190 |ULTIMATE.start_main_~x~0#1|) (= 19 |ULTIMATE.start_main_~y~0#1|)) (let ((.cse7 (select |#memory_int| 1))) (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (= |ULTIMATE.start_main_~c~0#1| 0) (= (select |#length| 3) 12) .cse0 (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= 9 (select |#length| 2)) (= |ULTIMATE.start_main_~y~0#1| 0) (= (select |#valid| 1) 1) .cse1 (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select .cse7 0) 48) (= |ULTIMATE.start_main_~x~0#1| 0) (= (select .cse7 1) 0))) (and .cse0 .cse3 .cse4 (<= (+ (* 40 |ULTIMATE.start_main_~y~0#1|) .cse5) 9223372036854775407) (<= 35 |ULTIMATE.start_main_~c~0#1|) .cse1 .cse2 .cse6) (and .cse0 .cse3 .cse4 (<= (+ (* |ULTIMATE.start_main_~y~0#1| 50) .cse5) 9223372036854775182) .cse1 .cse2 (<= 30 |ULTIMATE.start_main_~c~0#1|) .cse6) (and (<= (+ (* 46 |ULTIMATE.start_main_~y~0#1|) .cse5) 9223372036854775278) .cse0 .cse3 .cse4 .cse1 .cse2 .cse6 (<= 32 |ULTIMATE.start_main_~c~0#1|)) (and (<= (+ .cse5 (* |ULTIMATE.start_main_~y~0#1| 54)) 9223372036854775078) .cse0 .cse3 (<= 28 |ULTIMATE.start_main_~c~0#1|) .cse4 .cse1 .cse2 .cse6))) [2023-12-02 13:33:46,950 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-12-02 13:33:46,950 INFO L899 garLoopResultBuilder]: For program point L27-3(lines 27 36) no Hoare annotation was computed. [2023-12-02 13:33:46,950 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-12-02 13:33:46,950 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2023-12-02 13:33:46,950 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-12-02 13:33:46,951 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-12-02 13:33:46,951 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-12-02 13:33:46,951 INFO L899 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2023-12-02 13:33:46,951 INFO L899 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2023-12-02 13:33:46,951 INFO L899 garLoopResultBuilder]: For program point L28-2(line 28) no Hoare annotation was computed. [2023-12-02 13:33:46,951 INFO L899 garLoopResultBuilder]: For program point L28-3(line 28) no Hoare annotation was computed. [2023-12-02 13:33:46,951 INFO L899 garLoopResultBuilder]: For program point L28-4(line 28) no Hoare annotation was computed. [2023-12-02 13:33:46,951 INFO L899 garLoopResultBuilder]: For program point L28-5(line 28) no Hoare annotation was computed. [2023-12-02 13:33:46,951 INFO L899 garLoopResultBuilder]: For program point L28-6(line 28) no Hoare annotation was computed. [2023-12-02 13:33:46,951 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-12-02 13:33:46,951 INFO L899 garLoopResultBuilder]: For program point L28-7(line 28) no Hoare annotation was computed. [2023-12-02 13:33:46,952 INFO L895 garLoopResultBuilder]: At program point L28-8(line 28) the Hoare annotation is: (let ((.cse5 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse0 (<= 1 |#StackHeapBarrier|)) (.cse3 (<= 1 |ULTIMATE.start_main_~y~0#1|)) (.cse4 (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~k~0#1| 50)) (.cse2 (<= 1 |ULTIMATE.start_main_~k~0#1|)) (.cse6 (<= |ULTIMATE.start_main_~x~0#1| 4611686018427387903))) (or (and .cse0 (<= 9 |ULTIMATE.start_main_~c~0#1|) .cse1 .cse2 (= |ULTIMATE.start_main_~x~0#1| 45) (= 9 |ULTIMATE.start_main_~y~0#1|)) (and .cse0 (= 7 |ULTIMATE.start_main_~y~0#1|) .cse1 (<= 7 |ULTIMATE.start_main_~c~0#1|) .cse2 (= |ULTIMATE.start_main_~x~0#1| 28)) (and .cse0 (<= 11 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~y~0#1| 11) .cse1 .cse2 (= 66 |ULTIMATE.start_main_~x~0#1|)) (and .cse0 (= 16 |ULTIMATE.start_main_~y~0#1|) (<= 16 |ULTIMATE.start_main_~c~0#1|) .cse1 .cse2 (= |ULTIMATE.start_main_~x~0#1| 136)) (and (= |ULTIMATE.start_main_~x~0#1| 36) .cse0 .cse1 (= |ULTIMATE.start_main_~y~0#1| 8) .cse2 (<= 8 |ULTIMATE.start_main_~c~0#1|)) (and .cse0 .cse3 (<= 42 |ULTIMATE.start_main_~c~0#1|) .cse4 (<= (+ (* |ULTIMATE.start_main_~y~0#1| 26) .cse5) 9223372036854775638) .cse1 .cse2 .cse6) (and .cse0 (= |ULTIMATE.start_main_~x~0#1| 300) (<= 24 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~y~0#1| 24) .cse1 .cse2) (and .cse0 .cse3 .cse4 (<= (+ (* 22 |ULTIMATE.start_main_~y~0#1|) .cse5) 9223372036854775686) .cse1 .cse2 (<= 44 |ULTIMATE.start_main_~c~0#1|) .cse6) (and .cse0 (<= 1 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~x~0#1| 1) (= |ULTIMATE.start_main_~y~0#1| 1) .cse1 .cse2) (and .cse0 .cse3 (<= (+ (* 30 |ULTIMATE.start_main_~y~0#1|) .cse5) 9223372036854775582) .cse4 .cse1 (<= 40 |ULTIMATE.start_main_~c~0#1|) .cse2 .cse6) (and .cse0 .cse3 .cse4 .cse1 (<= (+ (* 14 |ULTIMATE.start_main_~y~0#1|) .cse5) 9223372036854775758) .cse2 .cse6 (<= 48 |ULTIMATE.start_main_~c~0#1|)) (and (<= (+ (* |ULTIMATE.start_main_~y~0#1| 10) .cse5) 9223372036854775782) .cse0 .cse3 .cse4 .cse1 .cse2 .cse6 (<= 50 |ULTIMATE.start_main_~c~0#1|)) (and .cse0 (= 231 |ULTIMATE.start_main_~x~0#1|) (= 21 |ULTIMATE.start_main_~y~0#1|) .cse1 .cse2 (<= 21 |ULTIMATE.start_main_~c~0#1|)) (and (= 6 |ULTIMATE.start_main_~y~0#1|) .cse0 (= 21 |ULTIMATE.start_main_~x~0#1|) .cse1 (<= 6 |ULTIMATE.start_main_~c~0#1|) .cse2) (and (<= 2 |ULTIMATE.start_main_~c~0#1|) .cse0 (= 3 |ULTIMATE.start_main_~x~0#1|) (= 2 |ULTIMATE.start_main_~y~0#1|) .cse1 .cse2) (and .cse0 (= 5 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~x~0#1| 15) .cse1 (<= 5 |ULTIMATE.start_main_~c~0#1|) .cse2) (and .cse0 .cse3 .cse4 (<= 43 |ULTIMATE.start_main_~c~0#1|) .cse1 (<= (+ (* |ULTIMATE.start_main_~y~0#1| 24) .cse5) 9223372036854775663) .cse2 .cse6) (and .cse0 (= 3 |ULTIMATE.start_main_~y~0#1|) (<= 3 |ULTIMATE.start_main_~c~0#1|) .cse1 .cse2 (= 6 |ULTIMATE.start_main_~x~0#1|)) (and .cse0 (<= 10 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~y~0#1| 10) .cse1 .cse2 (= |ULTIMATE.start_main_~x~0#1| 55)) (and .cse0 .cse3 .cse4 .cse1 (<= (+ (* |ULTIMATE.start_main_~y~0#1| 12) .cse5) 9223372036854775771) .cse2 .cse6 (<= 49 |ULTIMATE.start_main_~c~0#1|)) (and .cse0 (<= 12 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~y~0#1| 12) .cse1 .cse2 (= |ULTIMATE.start_main_~x~0#1| 78)) (and .cse0 .cse3 .cse4 (<= 31 |ULTIMATE.start_main_~c~0#1|) .cse1 .cse2 (<= (+ (* |ULTIMATE.start_main_~y~0#1| 48) .cse5) 9223372036854775231) .cse6) (and .cse0 (= |ULTIMATE.start_main_~y~0#1| 17) (<= 17 |ULTIMATE.start_main_~c~0#1|) .cse1 .cse2 (= 153 |ULTIMATE.start_main_~x~0#1|)) (and .cse0 (= |ULTIMATE.start_main_~y~0#1| 4) .cse1 .cse2 (<= 4 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~x~0#1| 10)) (and (<= (+ (* 44 |ULTIMATE.start_main_~y~0#1|) .cse5) 9223372036854775323) .cse0 (<= 33 |ULTIMATE.start_main_~c~0#1|) .cse3 .cse4 .cse1 .cse2 .cse6) (and .cse0 .cse3 .cse4 .cse1 .cse2 (<= 36 |ULTIMATE.start_main_~c~0#1|) .cse6 (<= (+ (* |ULTIMATE.start_main_~y~0#1| 38) .cse5) 9223372036854775446)) (and .cse0 .cse3 (<= (+ (* |ULTIMATE.start_main_~y~0#1| 34) .cse5) 9223372036854775518) (<= 38 |ULTIMATE.start_main_~c~0#1|) .cse4 .cse1 .cse2 .cse6) (and .cse0 (<= 45 |ULTIMATE.start_main_~c~0#1|) .cse3 .cse4 (<= (+ (* |ULTIMATE.start_main_~y~0#1| 20) .cse5) 9223372036854775707) .cse1 .cse2 .cse6) (and .cse0 (= 22 |ULTIMATE.start_main_~y~0#1|) .cse1 (= 253 |ULTIMATE.start_main_~x~0#1|) .cse2 (<= 22 |ULTIMATE.start_main_~c~0#1|)) (and .cse0 (<= 13 |ULTIMATE.start_main_~c~0#1|) .cse1 .cse2 (= 91 |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~y~0#1| 13)) (and .cse0 (<= 18 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~y~0#1| 18) .cse1 (= 171 |ULTIMATE.start_main_~x~0#1|) .cse2) (and .cse0 (<= (+ (* 32 |ULTIMATE.start_main_~y~0#1|) .cse5) 9223372036854775551) .cse3 (<= 39 |ULTIMATE.start_main_~c~0#1|) .cse4 .cse1 .cse2 .cse6) (and .cse0 .cse3 (<= 34 |ULTIMATE.start_main_~c~0#1|) .cse4 .cse1 .cse2 (<= (+ (* 42 |ULTIMATE.start_main_~y~0#1|) .cse5) 9223372036854775366) .cse6) (and .cse0 (= |ULTIMATE.start_main_~x~0#1| 120) .cse1 .cse2 (<= 15 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~y~0#1| 15)) (and (<= (+ (* 52 |ULTIMATE.start_main_~y~0#1|) .cse5) 9223372036854775131) .cse0 .cse3 .cse4 (<= 29 |ULTIMATE.start_main_~c~0#1|) .cse1 .cse2 .cse6) (and .cse0 .cse3 .cse4 .cse1 .cse2 (<= 47 |ULTIMATE.start_main_~c~0#1|) .cse6 (<= (+ (* 16 |ULTIMATE.start_main_~y~0#1|) .cse5) 9223372036854775743)) (and (= 23 |ULTIMATE.start_main_~y~0#1|) (= 276 |ULTIMATE.start_main_~x~0#1|) .cse0 (<= 23 |ULTIMATE.start_main_~c~0#1|) .cse1 .cse2) (and .cse0 .cse3 (<= (+ (* |ULTIMATE.start_main_~y~0#1| 18) .cse5) 9223372036854775726) (<= 46 |ULTIMATE.start_main_~c~0#1|) .cse4 .cse1 .cse2 .cse6) (and .cse0 (= 14 |ULTIMATE.start_main_~y~0#1|) (<= 14 |ULTIMATE.start_main_~c~0#1|) .cse1 (= |ULTIMATE.start_main_~x~0#1| 105) .cse2) (and (<= (+ (* |ULTIMATE.start_main_~y~0#1| 36) .cse5) 9223372036854775483) .cse0 .cse3 (<= 37 |ULTIMATE.start_main_~c~0#1|) .cse4 .cse1 .cse2 .cse6) (and .cse0 (<= 25 |ULTIMATE.start_main_~c~0#1|) .cse1 (<= 25 |ULTIMATE.start_main_~x~0#1|) .cse2 .cse6 (= |ULTIMATE.start_main_~y~0#1| 25)) (and .cse0 (<= 27 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~y~0#1| 27) (<= 27 |ULTIMATE.start_main_~x~0#1|) .cse1 .cse2 .cse6) (and (= |ULTIMATE.start_main_~x~0#1| 210) .cse0 (= |ULTIMATE.start_main_~y~0#1| 20) .cse1 (<= 20 |ULTIMATE.start_main_~c~0#1|) .cse2) (and .cse0 .cse3 .cse4 .cse1 .cse2 .cse6 (<= 41 |ULTIMATE.start_main_~c~0#1|) (<= (+ (* |ULTIMATE.start_main_~y~0#1| 28) .cse5) 9223372036854775611)) (and .cse0 (<= 26 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~y~0#1| 26) (<= 26 |ULTIMATE.start_main_~x~0#1|) .cse1 .cse2 .cse6) (and (<= 19 |ULTIMATE.start_main_~c~0#1|) .cse0 .cse1 .cse2 (= 190 |ULTIMATE.start_main_~x~0#1|) (= 19 |ULTIMATE.start_main_~y~0#1|)) (let ((.cse7 (select |#memory_int| 1))) (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (= |ULTIMATE.start_main_~c~0#1| 0) (= (select |#length| 3) 12) .cse0 (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= 9 (select |#length| 2)) (= |ULTIMATE.start_main_~y~0#1| 0) (= (select |#valid| 1) 1) .cse1 (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select .cse7 0) 48) (= |ULTIMATE.start_main_~x~0#1| 0) (= (select .cse7 1) 0))) (and .cse0 .cse3 .cse4 (<= (+ (* 40 |ULTIMATE.start_main_~y~0#1|) .cse5) 9223372036854775407) (<= 35 |ULTIMATE.start_main_~c~0#1|) .cse1 .cse2 .cse6) (and .cse0 .cse3 .cse4 (<= (+ (* |ULTIMATE.start_main_~y~0#1| 50) .cse5) 9223372036854775182) .cse1 .cse2 (<= 30 |ULTIMATE.start_main_~c~0#1|) .cse6) (and (<= (+ (* 46 |ULTIMATE.start_main_~y~0#1|) .cse5) 9223372036854775278) .cse0 .cse3 .cse4 .cse1 .cse2 .cse6 (<= 32 |ULTIMATE.start_main_~c~0#1|)) (and (<= (+ .cse5 (* |ULTIMATE.start_main_~y~0#1| 54)) 9223372036854775078) .cse0 .cse3 (<= 28 |ULTIMATE.start_main_~c~0#1|) .cse4 .cse1 .cse2 .cse6))) [2023-12-02 13:33:46,952 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-12-02 13:33:46,952 INFO L899 garLoopResultBuilder]: For program point L28-9(lines 27 36) no Hoare annotation was computed. [2023-12-02 13:33:46,953 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-12-02 13:33:46,953 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-12-02 13:33:46,953 INFO L899 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2023-12-02 13:33:46,953 INFO L899 garLoopResultBuilder]: For program point L37-1(line 37) no Hoare annotation was computed. [2023-12-02 13:33:46,953 INFO L899 garLoopResultBuilder]: For program point L37-2(line 37) no Hoare annotation was computed. [2023-12-02 13:33:46,953 INFO L899 garLoopResultBuilder]: For program point L37-3(line 37) no Hoare annotation was computed. [2023-12-02 13:33:46,953 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-12-02 13:33:46,953 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2023-12-02 13:33:46,953 INFO L899 garLoopResultBuilder]: For program point L37-4(line 37) no Hoare annotation was computed. [2023-12-02 13:33:46,953 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 13:33:46,953 INFO L899 garLoopResultBuilder]: For program point L33-1(line 33) no Hoare annotation was computed. [2023-12-02 13:33:46,953 INFO L899 garLoopResultBuilder]: For program point L37-5(line 37) no Hoare annotation was computed. [2023-12-02 13:33:46,953 INFO L899 garLoopResultBuilder]: For program point L37-6(line 37) no Hoare annotation was computed. [2023-12-02 13:33:46,954 INFO L902 garLoopResultBuilder]: At program point L37-7(line 37) the Hoare annotation is: true [2023-12-02 13:33:46,954 INFO L899 garLoopResultBuilder]: For program point L37-8(line 37) no Hoare annotation was computed. [2023-12-02 13:33:46,954 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-12-02 13:33:46,954 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-12-02 13:33:46,954 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-12-02 13:33:46,954 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-12-02 13:33:46,954 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-12-02 13:33:46,954 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 13:33:46,954 INFO L899 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2023-12-02 13:33:46,954 INFO L899 garLoopResultBuilder]: For program point L34-1(line 34) no Hoare annotation was computed. [2023-12-02 13:33:46,954 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-12-02 13:33:46,954 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-12-02 13:33:46,955 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-12-02 13:33:46,955 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2023-12-02 13:33:46,955 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-12-02 13:33:46,955 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2023-12-02 13:33:46,955 INFO L899 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2023-12-02 13:33:46,955 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed. [2023-12-02 13:33:46,955 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 9 15) the Hoare annotation is: true [2023-12-02 13:33:46,957 INFO L445 BasicCegarLoop]: Path program histogram: [7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:33:46,959 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 13:33:46,993 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-12-02 13:33:46,994 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-12-02 13:33:46,994 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-12-02 13:33:46,994 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-12-02 13:33:46,995 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-12-02 13:33:46,995 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-12-02 13:33:46,995 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-12-02 13:33:46,995 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-12-02 13:33:46,996 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-12-02 13:33:46,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:33:46 BoogieIcfgContainer [2023-12-02 13:33:46,998 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 13:33:46,998 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 13:33:46,998 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 13:33:46,998 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 13:33:46,999 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:28:43" (3/4) ... [2023-12-02 13:33:47,001 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 13:33:47,004 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-12-02 13:33:47,009 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-12-02 13:33:47,010 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-12-02 13:33:47,010 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 13:33:47,010 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 13:33:47,092 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 13:33:47,092 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 13:33:47,092 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 13:33:47,093 INFO L158 Benchmark]: Toolchain (without parser) took 304074.14ms. Allocated memory was 172.0MB in the beginning and 249.6MB in the end (delta: 77.6MB). Free memory was 142.4MB in the beginning and 172.5MB in the end (delta: -30.1MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. [2023-12-02 13:33:47,093 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 125.8MB. Free memory is still 98.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:33:47,094 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.57ms. Allocated memory is still 172.0MB. Free memory was 142.2MB in the beginning and 135.7MB in the end (delta: 6.6MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2023-12-02 13:33:47,094 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.82ms. Allocated memory is still 172.0MB. Free memory was 135.7MB in the beginning and 133.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:33:47,094 INFO L158 Benchmark]: Boogie Preprocessor took 25.90ms. Allocated memory is still 172.0MB. Free memory was 133.9MB in the beginning and 132.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:33:47,095 INFO L158 Benchmark]: RCFGBuilder took 391.26ms. Allocated memory is still 172.0MB. Free memory was 132.8MB in the beginning and 136.7MB in the end (delta: -3.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 13:33:47,095 INFO L158 Benchmark]: TraceAbstraction took 303245.40ms. Allocated memory was 172.0MB in the beginning and 249.6MB in the end (delta: 77.6MB). Free memory was 135.7MB in the beginning and 177.8MB in the end (delta: -42.1MB). Peak memory consumption was 160.2MB. Max. memory is 16.1GB. [2023-12-02 13:33:47,096 INFO L158 Benchmark]: Witness Printer took 94.08ms. Allocated memory is still 249.6MB. Free memory was 177.8MB in the beginning and 172.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 13:33:47,097 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 125.8MB. Free memory is still 98.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 268.57ms. Allocated memory is still 172.0MB. Free memory was 142.2MB in the beginning and 135.7MB in the end (delta: 6.6MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.82ms. Allocated memory is still 172.0MB. Free memory was 135.7MB in the beginning and 133.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.90ms. Allocated memory is still 172.0MB. Free memory was 133.9MB in the beginning and 132.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 391.26ms. Allocated memory is still 172.0MB. Free memory was 132.8MB in the beginning and 136.7MB in the end (delta: -3.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 303245.40ms. Allocated memory was 172.0MB in the beginning and 249.6MB in the end (delta: 77.6MB). Free memory was 135.7MB in the beginning and 177.8MB in the end (delta: -42.1MB). Peak memory consumption was 160.2MB. Max. memory is 16.1GB. * Witness Printer took 94.08ms. Allocated memory is still 249.6MB. Free memory was 177.8MB in the beginning and 172.5MB 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 #length[2] 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 #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: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: 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: 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: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: 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, 53 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 303.1s, OverallIterations: 20, TraceHistogramMax: 57, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 26.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 11.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2196 SdHoareTripleChecker+Valid, 8.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2178 mSDsluCounter, 12400 SdHoareTripleChecker+Invalid, 7.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10915 mSDsCounter, 386 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14134 IncrementalHoareTripleChecker+Invalid, 14520 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 386 mSolverCounterUnsat, 1485 mSDtfsCounter, 14134 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5549 GetRequests, 4737 SyntacticMatches, 319 SemanticMatches, 493 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18887 ImplicationChecksByTransitivity, 128.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=959occurred in iteration=19, InterpolantAutomatonStates: 290, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 20 MinimizatonAttempts, 130 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 61 PreInvPairs, 164 NumberOfFragments, 2610 HoareAnnotationTreeSize, 61 FomulaSimplifications, 7552 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 4 FomulaSimplificationsInter, 3087 FormulaSimplificationTreeSizeReductionInter, 10.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 91.3s SatisfiabilityAnalysisTime, 122.8s InterpolantComputationTime, 2763 NumberOfCodeBlocks, 2725 NumberOfCodeBlocksAsserted, 53 NumberOfCheckSat, 3730 ConstructedInterpolants, 2 QuantifiedInterpolants, 25140 SizeOfPredicates, 9 NumberOfNonLiveVariables, 4791 ConjunctsInSsa, 292 ConjunctsInUnsatCore, 27 InterpolantComputations, 12 PerfectInterpolantSequences, 31947/52494 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: 0.7s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 27, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 81, TOOLS_POST_TIME: 0.4s, TOOLS_POST_CALL_APPLICATIONS: 11, TOOLS_POST_CALL_TIME: 0.1s, TOOLS_POST_RETURN_APPLICATIONS: 10, TOOLS_POST_RETURN_TIME: 0.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 102, TOOLS_QUANTIFIERELIM_TIME: 0.6s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 124, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 12, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 27, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.5s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.5s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 10, CALL_SUMMARIZER_CACHE_MISSES: 1, 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: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 690, DAG_COMPRESSION_RETAINED_NODES: 86, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((9 <= c) && (k <= 50)) && (1 <= k)) && (x == 45)) && (9 == y)) || (((((7 == y) && (k <= 50)) && (7 <= c)) && (1 <= k)) && (x == 28))) || (((((11 <= c) && (y == 11)) && (k <= 50)) && (1 <= k)) && (66 == x))) || (((((16 == y) && (16 <= c)) && (k <= 50)) && (1 <= k)) && (x == 136))) || (((((x == 36) && (k <= 50)) && (y == 8)) && (1 <= k)) && (8 <= c))) || (((((((1 <= y) && (42 <= c)) && (y <= x)) && (((y * 26) + (y * y)) <= 9223372036854775638)) && (k <= 50)) && (1 <= k)) && (x <= 4611686018427387903))) || (((((x == 300) && (24 <= c)) && (y == 24)) && (k <= 50)) && (1 <= k))) || (((((((1 <= y) && (y <= x)) && (((22 * y) + (y * y)) <= 9223372036854775686)) && (k <= 50)) && (1 <= k)) && (44 <= c)) && (x <= 4611686018427387903))) || (((((1 <= c) && (x == 1)) && (y == 1)) && (k <= 50)) && (1 <= k))) || (((((((1 <= y) && (((30 * y) + (y * y)) <= 9223372036854775582)) && (y <= x)) && (k <= 50)) && (40 <= c)) && (1 <= k)) && (x <= 4611686018427387903))) || (((((((1 <= y) && (y <= x)) && (k <= 50)) && (((14 * y) + (y * y)) <= 9223372036854775758)) && (1 <= k)) && (x <= 4611686018427387903)) && (48 <= c))) || (((((((((y * 10) + (y * y)) <= 9223372036854775782) && (1 <= y)) && (y <= x)) && (k <= 50)) && (1 <= k)) && (x <= 4611686018427387903)) && (50 <= c))) || (((((231 == x) && (21 == y)) && (k <= 50)) && (1 <= k)) && (21 <= c))) || (((((6 == y) && (21 == x)) && (k <= 50)) && (6 <= c)) && (1 <= k))) || (((((2 <= c) && (3 == x)) && (2 == y)) && (k <= 50)) && (1 <= k))) || (((((5 == y) && (x == 15)) && (k <= 50)) && (5 <= c)) && (1 <= k))) || (((((((1 <= y) && (y <= x)) && (43 <= c)) && (k <= 50)) && (((y * 24) + (y * y)) <= 9223372036854775663)) && (1 <= k)) && (x <= 4611686018427387903))) || (((((3 == y) && (3 <= c)) && (k <= 50)) && (1 <= k)) && (6 == x))) || (((((10 <= c) && (y == 10)) && (k <= 50)) && (1 <= k)) && (x == 55))) || (((((((1 <= y) && (y <= x)) && (k <= 50)) && (((y * 12) + (y * y)) <= 9223372036854775771)) && (1 <= k)) && (x <= 4611686018427387903)) && (49 <= c))) || (((((12 <= c) && (y == 12)) && (k <= 50)) && (1 <= k)) && (x == 78))) || (((((((1 <= y) && (y <= x)) && (31 <= c)) && (k <= 50)) && (1 <= k)) && (((y * 48) + (y * y)) <= 9223372036854775231)) && (x <= 4611686018427387903))) || (((((y == 17) && (17 <= c)) && (k <= 50)) && (1 <= k)) && (153 == x))) || (((((y == 4) && (k <= 50)) && (1 <= k)) && (4 <= c)) && (x == 10))) || (((((((((44 * y) + (y * y)) <= 9223372036854775323) && (33 <= c)) && (1 <= y)) && (y <= x)) && (k <= 50)) && (1 <= k)) && (x <= 4611686018427387903))) || (((((((1 <= y) && (y <= x)) && (k <= 50)) && (1 <= k)) && (36 <= c)) && (x <= 4611686018427387903)) && (((y * 38) + (y * y)) <= 9223372036854775446))) || (((((((1 <= y) && (((y * 34) + (y * y)) <= 9223372036854775518)) && (38 <= c)) && (y <= x)) && (k <= 50)) && (1 <= k)) && (x <= 4611686018427387903))) || (((((((45 <= c) && (1 <= y)) && (y <= x)) && (((y * 20) + (y * y)) <= 9223372036854775707)) && (k <= 50)) && (1 <= k)) && (x <= 4611686018427387903))) || (((((22 == y) && (k <= 50)) && (253 == x)) && (1 <= k)) && (22 <= c))) || (((((13 <= c) && (k <= 50)) && (1 <= k)) && (91 == x)) && (y == 13))) || (((((18 <= c) && (y == 18)) && (k <= 50)) && (171 == x)) && (1 <= k))) || (((((((((32 * y) + (y * y)) <= 9223372036854775551) && (1 <= y)) && (39 <= c)) && (y <= x)) && (k <= 50)) && (1 <= k)) && (x <= 4611686018427387903))) || (((((((1 <= y) && (34 <= c)) && (y <= x)) && (k <= 50)) && (1 <= k)) && (((42 * y) + (y * y)) <= 9223372036854775366)) && (x <= 4611686018427387903))) || (((((x == 120) && (k <= 50)) && (1 <= k)) && (15 <= c)) && (y == 15))) || (((((((((52 * y) + (y * y)) <= 9223372036854775131) && (1 <= y)) && (y <= x)) && (29 <= c)) && (k <= 50)) && (1 <= k)) && (x <= 4611686018427387903))) || (((((((1 <= y) && (y <= x)) && (k <= 50)) && (1 <= k)) && (47 <= c)) && (x <= 4611686018427387903)) && (((16 * y) + (y * y)) <= 9223372036854775743))) || (((((23 == y) && (276 == x)) && (23 <= c)) && (k <= 50)) && (1 <= k))) || (((((((1 <= y) && (((y * 18) + (y * y)) <= 9223372036854775726)) && (46 <= c)) && (y <= x)) && (k <= 50)) && (1 <= k)) && (x <= 4611686018427387903))) || (((((14 == y) && (14 <= c)) && (k <= 50)) && (x == 105)) && (1 <= k))) || (((((((((y * 36) + (y * y)) <= 9223372036854775483) && (1 <= y)) && (37 <= c)) && (y <= x)) && (k <= 50)) && (1 <= k)) && (x <= 4611686018427387903))) || ((((((25 <= c) && (k <= 50)) && (25 <= x)) && (1 <= k)) && (x <= 4611686018427387903)) && (y == 25))) || ((((((27 <= c) && (y == 27)) && (27 <= x)) && (k <= 50)) && (1 <= k)) && (x <= 4611686018427387903))) || (((((x == 210) && (y == 20)) && (k <= 50)) && (20 <= c)) && (1 <= k))) || (((((((1 <= y) && (y <= x)) && (k <= 50)) && (1 <= k)) && (x <= 4611686018427387903)) && (41 <= c)) && (((y * 28) + (y * y)) <= 9223372036854775611))) || ((((((26 <= c) && (y == 26)) && (26 <= x)) && (k <= 50)) && (1 <= k)) && (x <= 4611686018427387903))) || (((((19 <= c) && (k <= 50)) && (1 <= k)) && (190 == x)) && (19 == y))) || (((((0 <= k) && (c == 0)) && (y == 0)) && (k <= 50)) && (x == 0))) || (((((((1 <= y) && (y <= x)) && (((40 * y) + (y * y)) <= 9223372036854775407)) && (35 <= c)) && (k <= 50)) && (1 <= k)) && (x <= 4611686018427387903))) || (((((((1 <= y) && (y <= x)) && (((y * 50) + (y * y)) <= 9223372036854775182)) && (k <= 50)) && (1 <= k)) && (30 <= c)) && (x <= 4611686018427387903))) || (((((((((46 * y) + (y * y)) <= 9223372036854775278) && (1 <= y)) && (y <= x)) && (k <= 50)) && (1 <= k)) && (x <= 4611686018427387903)) && (32 <= c))) || (((((((((y * y) + (y * 54)) <= 9223372036854775078) && (1 <= y)) && (28 <= c)) && (y <= x)) && (k <= 50)) && (1 <= k)) && (x <= 4611686018427387903))) RESULT: Ultimate proved your program to be correct! [2023-12-02 13:33:47,313 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2023-12-02 13:33:47,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ef805ec-28fe-4425-bfb2-5e9700e3ab25/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE