./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3.ufo.UNBOUNDED.pals.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_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/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_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/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_e0c35e28-2cb7-451f-aab9-6192e1ebb904/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 92be10af768295be2ee9c176bac2a7de85c1afeb202e4b441d20022190d8e93f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:12:18,286 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:12:18,349 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-12-02 14:12:18,353 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:12:18,354 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:12:18,377 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:12:18,378 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:12:18,378 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:12:18,379 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:12:18,380 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:12:18,381 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:12:18,381 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:12:18,382 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:12:18,382 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 14:12:18,383 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:12:18,383 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:12:18,384 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 14:12:18,384 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 14:12:18,385 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:12:18,385 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 14:12:18,386 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 14:12:18,387 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 14:12:18,388 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:12:18,388 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:12:18,389 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 14:12:18,389 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:12:18,390 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 14:12:18,390 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:12:18,391 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:12:18,391 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:12:18,391 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:12:18,392 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 14:12:18,392 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 14:12:18,392 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 14:12:18,393 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:12:18,393 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:12:18,393 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:12:18,393 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:12:18,393 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:12:18,393 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:12:18,394 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:12:18,394 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:12:18,394 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:12:18,394 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 14:12:18,395 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 14:12:18,395 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:12:18,395 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:12:18,395 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:12:18,395 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:12:18,395 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_e0c35e28-2cb7-451f-aab9-6192e1ebb904/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92be10af768295be2ee9c176bac2a7de85c1afeb202e4b441d20022190d8e93f [2023-12-02 14:12:18,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:12:18,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:12:18,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:12:18,621 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:12:18,621 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:12:18,622 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3.ufo.UNBOUNDED.pals.c [2023-12-02 14:12:21,409 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:12:21,572 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:12:21,572 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/sv-benchmarks/c/seq-mthreaded/pals_lcr.3.ufo.UNBOUNDED.pals.c [2023-12-02 14:12:21,582 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/data/7f1ffc74e/6edd065fc9354487b450a95e882f5367/FLAGa218f6c37 [2023-12-02 14:12:21,594 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/data/7f1ffc74e/6edd065fc9354487b450a95e882f5367 [2023-12-02 14:12:21,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:12:21,599 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:12:21,600 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:12:21,600 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:12:21,604 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:12:21,605 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:12:21" (1/1) ... [2023-12-02 14:12:21,606 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37886610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:21, skipping insertion in model container [2023-12-02 14:12:21,606 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:12:21" (1/1) ... [2023-12-02 14:12:21,635 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:12:21,797 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:12:21,809 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:12:21,842 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:12:21,857 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:12:21,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:21 WrapperNode [2023-12-02 14:12:21,857 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:12:21,858 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:12:21,858 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:12:21,859 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:12:21,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:21" (1/1) ... [2023-12-02 14:12:21,872 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:21" (1/1) ... [2023-12-02 14:12:21,899 INFO L138 Inliner]: procedures = 23, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 234 [2023-12-02 14:12:21,899 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:12:21,900 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:12:21,900 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:12:21,900 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:12:21,907 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:21" (1/1) ... [2023-12-02 14:12:21,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:21" (1/1) ... [2023-12-02 14:12:21,909 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:21" (1/1) ... [2023-12-02 14:12:21,909 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:21" (1/1) ... [2023-12-02 14:12:21,915 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:21" (1/1) ... [2023-12-02 14:12:21,919 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:21" (1/1) ... [2023-12-02 14:12:21,922 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:21" (1/1) ... [2023-12-02 14:12:21,924 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:21" (1/1) ... [2023-12-02 14:12:21,927 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:12:21,928 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:12:21,928 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:12:21,929 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:12:21,929 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:21" (1/1) ... [2023-12-02 14:12:21,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:12:21,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:12:21,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:12:21,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:12:21,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:12:21,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 14:12:21,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:12:21,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:12:22,064 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:12:22,066 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:12:22,361 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:12:22,615 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:12:22,615 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 14:12:22,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:12:22 BoogieIcfgContainer [2023-12-02 14:12:22,617 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:12:22,620 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:12:22,620 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:12:22,623 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:12:22,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:12:21" (1/3) ... [2023-12-02 14:12:22,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48923981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:12:22, skipping insertion in model container [2023-12-02 14:12:22,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:21" (2/3) ... [2023-12-02 14:12:22,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48923981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:12:22, skipping insertion in model container [2023-12-02 14:12:22,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:12:22" (3/3) ... [2023-12-02 14:12:22,625 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.UNBOUNDED.pals.c [2023-12-02 14:12:22,645 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:12:22,645 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-12-02 14:12:22,691 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:12:22,697 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;@1028ddb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:12:22,697 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-12-02 14:12:22,701 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 23 states have (on average 1.8695652173913044) internal successors, (43), 37 states have internal predecessors, (43), 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 14:12:22,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 14:12:22,706 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:12:22,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 14:12:22,707 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 14:12:22,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:12:22,711 INFO L85 PathProgramCache]: Analyzing trace with hash 11561918, now seen corresponding path program 1 times [2023-12-02 14:12:22,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:12:22,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287443123] [2023-12-02 14:12:22,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:12:22,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:12:22,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:12:23,038 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 14:12:23,039 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:12:23,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287443123] [2023-12-02 14:12:23,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287443123] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:12:23,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:12:23,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:12:23,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25627604] [2023-12-02 14:12:23,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:12:23,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:12:23,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:12:23,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:12:23,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:12:23,070 INFO L87 Difference]: Start difference. First operand has 38 states, 23 states have (on average 1.8695652173913044) internal successors, (43), 37 states have internal predecessors, (43), 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) 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 14:12:23,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:12:23,127 INFO L93 Difference]: Finished difference Result 104 states and 123 transitions. [2023-12-02 14:12:23,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:12:23,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) 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 14:12:23,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:12:23,138 INFO L225 Difference]: With dead ends: 104 [2023-12-02 14:12:23,139 INFO L226 Difference]: Without dead ends: 67 [2023-12-02 14:12:23,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:12:23,144 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 34 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:12:23,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 97 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:12:23,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-12-02 14:12:23,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 55. [2023-12-02 14:12:23,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 43 states have (on average 1.7674418604651163) internal successors, (76), 54 states have internal predecessors, (76), 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 14:12:23,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 76 transitions. [2023-12-02 14:12:23,177 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 76 transitions. Word has length 4 [2023-12-02 14:12:23,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:12:23,177 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 76 transitions. [2023-12-02 14:12:23,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) 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 14:12:23,178 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 76 transitions. [2023-12-02 14:12:23,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 14:12:23,178 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:12:23,178 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 14:12:23,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 14:12:23,179 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 14:12:23,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:12:23,180 INFO L85 PathProgramCache]: Analyzing trace with hash 358271949, now seen corresponding path program 1 times [2023-12-02 14:12:23,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:12:23,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675434427] [2023-12-02 14:12:23,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:12:23,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:12:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:12:23,494 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 14:12:23,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:12:23,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675434427] [2023-12-02 14:12:23,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675434427] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:12:23,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:12:23,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:12:23,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973375586] [2023-12-02 14:12:23,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:12:23,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:12:23,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:12:23,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:12:23,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:12:23,498 INFO L87 Difference]: Start difference. First operand 55 states and 76 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 14:12:23,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:12:23,633 INFO L93 Difference]: Finished difference Result 89 states and 118 transitions. [2023-12-02 14:12:23,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:12:23,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 14:12:23,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:12:23,635 INFO L225 Difference]: With dead ends: 89 [2023-12-02 14:12:23,636 INFO L226 Difference]: Without dead ends: 86 [2023-12-02 14:12:23,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 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 14:12:23,638 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 34 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:12:23,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 24 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:12:23,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-02 14:12:23,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 71. [2023-12-02 14:12:23,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 59 states have (on average 1.728813559322034) internal successors, (102), 70 states have internal predecessors, (102), 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 14:12:23,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 102 transitions. [2023-12-02 14:12:23,650 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 102 transitions. Word has length 5 [2023-12-02 14:12:23,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:12:23,651 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 102 transitions. [2023-12-02 14:12:23,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 14:12:23,651 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 102 transitions. [2023-12-02 14:12:23,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 14:12:23,652 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:12:23,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-12-02 14:12:23,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 14:12:23,653 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 14:12:23,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:12:23,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1778471230, now seen corresponding path program 1 times [2023-12-02 14:12:23,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:12:23,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882760292] [2023-12-02 14:12:23,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:12:23,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:12:23,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:12:23,887 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 14:12:23,888 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:12:23,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882760292] [2023-12-02 14:12:23,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882760292] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:12:23,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:12:23,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:12:23,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317800909] [2023-12-02 14:12:23,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:12:23,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:12:23,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:12:23,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:12:23,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:12:23,891 INFO L87 Difference]: Start difference. First operand 71 states and 102 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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 14:12:24,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:12:24,008 INFO L93 Difference]: Finished difference Result 89 states and 115 transitions. [2023-12-02 14:12:24,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:12:24,009 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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 14:12:24,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:12:24,010 INFO L225 Difference]: With dead ends: 89 [2023-12-02 14:12:24,010 INFO L226 Difference]: Without dead ends: 86 [2023-12-02 14:12:24,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 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 14:12:24,012 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 30 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:12:24,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 27 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:12:24,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-02 14:12:24,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 72. [2023-12-02 14:12:24,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 60 states have (on average 1.6833333333333333) internal successors, (101), 71 states have internal predecessors, (101), 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 14:12:24,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 101 transitions. [2023-12-02 14:12:24,023 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 101 transitions. Word has length 6 [2023-12-02 14:12:24,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:12:24,024 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 101 transitions. [2023-12-02 14:12:24,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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 14:12:24,024 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 101 transitions. [2023-12-02 14:12:24,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 14:12:24,025 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:12:24,025 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:12:24,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 14:12:24,025 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 14:12:24,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:12:24,026 INFO L85 PathProgramCache]: Analyzing trace with hash 701966959, now seen corresponding path program 1 times [2023-12-02 14:12:24,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:12:24,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58237661] [2023-12-02 14:12:24,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:12:24,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:12:24,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:12:24,300 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 14:12:24,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:12:24,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58237661] [2023-12-02 14:12:24,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58237661] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:12:24,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:12:24,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:12:24,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406622121] [2023-12-02 14:12:24,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:12:24,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:12:24,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:12:24,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:12:24,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:12:24,303 INFO L87 Difference]: Start difference. First operand 72 states and 101 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:12:24,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:12:24,421 INFO L93 Difference]: Finished difference Result 96 states and 131 transitions. [2023-12-02 14:12:24,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:12:24,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-12-02 14:12:24,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:12:24,423 INFO L225 Difference]: With dead ends: 96 [2023-12-02 14:12:24,423 INFO L226 Difference]: Without dead ends: 93 [2023-12-02 14:12:24,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 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 14:12:24,425 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 28 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:12:24,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 30 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:12:24,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-12-02 14:12:24,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 80. [2023-12-02 14:12:24,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 68 states have (on average 1.661764705882353) internal successors, (113), 79 states have internal predecessors, (113), 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 14:12:24,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 113 transitions. [2023-12-02 14:12:24,435 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 113 transitions. Word has length 7 [2023-12-02 14:12:24,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:12:24,436 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 113 transitions. [2023-12-02 14:12:24,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:12:24,436 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 113 transitions. [2023-12-02 14:12:24,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 14:12:24,437 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:12:24,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:12:24,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 14:12:24,437 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 14:12:24,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:12:24,438 INFO L85 PathProgramCache]: Analyzing trace with hash 286139492, now seen corresponding path program 1 times [2023-12-02 14:12:24,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:12:24,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858675788] [2023-12-02 14:12:24,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:12:24,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:12:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:12:24,699 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 14:12:24,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:12:24,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858675788] [2023-12-02 14:12:24,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858675788] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:12:24,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:12:24,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:12:24,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891962637] [2023-12-02 14:12:24,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:12:24,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:12:24,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:12:24,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:12:24,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:12:24,703 INFO L87 Difference]: Start difference. First operand 80 states and 113 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 14:12:24,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:12:24,813 INFO L93 Difference]: Finished difference Result 155 states and 216 transitions. [2023-12-02 14:12:24,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:12:24,813 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 14:12:24,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:12:24,814 INFO L225 Difference]: With dead ends: 155 [2023-12-02 14:12:24,815 INFO L226 Difference]: Without dead ends: 93 [2023-12-02 14:12:24,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 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 14:12:24,816 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 23 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:12:24,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 34 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:12:24,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-12-02 14:12:24,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 82. [2023-12-02 14:12:24,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 70 states have (on average 1.6) internal successors, (112), 81 states have internal predecessors, (112), 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 14:12:24,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 112 transitions. [2023-12-02 14:12:24,825 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 112 transitions. Word has length 8 [2023-12-02 14:12:24,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:12:24,826 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 112 transitions. [2023-12-02 14:12:24,826 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 14:12:24,826 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 112 transitions. [2023-12-02 14:12:24,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 14:12:24,827 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:12:24,827 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:12:24,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 14:12:24,827 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 14:12:24,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:12:24,828 INFO L85 PathProgramCache]: Analyzing trace with hash -875108815, now seen corresponding path program 1 times [2023-12-02 14:12:24,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:12:24,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977934544] [2023-12-02 14:12:24,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:12:24,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:12:24,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:12:24,920 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:12:24,920 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:12:24,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977934544] [2023-12-02 14:12:24,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977934544] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:12:24,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:12:24,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:12:24,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027734889] [2023-12-02 14:12:24,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:12:24,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:12:24,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:12:24,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:12:24,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:12:24,923 INFO L87 Difference]: Start difference. First operand 82 states and 112 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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 14:12:24,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:12:24,959 INFO L93 Difference]: Finished difference Result 173 states and 236 transitions. [2023-12-02 14:12:24,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:12:24,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2023-12-02 14:12:24,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:12:24,961 INFO L225 Difference]: With dead ends: 173 [2023-12-02 14:12:24,961 INFO L226 Difference]: Without dead ends: 106 [2023-12-02 14:12:24,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:12:24,962 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 19 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:12:24,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 62 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:12:24,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-12-02 14:12:24,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 94. [2023-12-02 14:12:24,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 82 states have (on average 1.6097560975609757) internal successors, (132), 93 states have internal predecessors, (132), 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 14:12:24,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 132 transitions. [2023-12-02 14:12:24,972 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 132 transitions. Word has length 16 [2023-12-02 14:12:24,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:12:24,972 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 132 transitions. [2023-12-02 14:12:24,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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 14:12:24,972 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 132 transitions. [2023-12-02 14:12:24,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 14:12:24,973 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:12:24,973 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:12:24,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 14:12:24,974 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 14:12:24,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:12:24,974 INFO L85 PathProgramCache]: Analyzing trace with hash -961931355, now seen corresponding path program 1 times [2023-12-02 14:12:24,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:12:24,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078886164] [2023-12-02 14:12:24,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:12:24,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:12:24,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:12:25,105 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:12:25,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:12:25,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078886164] [2023-12-02 14:12:25,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078886164] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:12:25,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:12:25,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:12:25,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552642881] [2023-12-02 14:12:25,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:12:25,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:12:25,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:12:25,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:12:25,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:12:25,107 INFO L87 Difference]: Start difference. First operand 94 states and 132 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 14:12:25,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:12:25,128 INFO L93 Difference]: Finished difference Result 177 states and 253 transitions. [2023-12-02 14:12:25,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:12:25,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2023-12-02 14:12:25,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:12:25,130 INFO L225 Difference]: With dead ends: 177 [2023-12-02 14:12:25,130 INFO L226 Difference]: Without dead ends: 94 [2023-12-02 14:12:25,131 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 14:12:25,132 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:12:25,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:12:25,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-02 14:12:25,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2023-12-02 14:12:25,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 82 states have (on average 1.5365853658536586) internal successors, (126), 93 states have internal predecessors, (126), 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 14:12:25,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 126 transitions. [2023-12-02 14:12:25,139 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 126 transitions. Word has length 20 [2023-12-02 14:12:25,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:12:25,140 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 126 transitions. [2023-12-02 14:12:25,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 14:12:25,140 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 126 transitions. [2023-12-02 14:12:25,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 14:12:25,141 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:12:25,141 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:12:25,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 14:12:25,142 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 14:12:25,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:12:25,142 INFO L85 PathProgramCache]: Analyzing trace with hash 641071171, now seen corresponding path program 1 times [2023-12-02 14:12:25,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:12:25,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738201872] [2023-12-02 14:12:25,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:12:25,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:12:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:12:25,224 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:12:25,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:12:25,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738201872] [2023-12-02 14:12:25,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738201872] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:12:25,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:12:25,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:12:25,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111215697] [2023-12-02 14:12:25,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:12:25,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:12:25,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:12:25,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:12:25,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:12:25,227 INFO L87 Difference]: Start difference. First operand 94 states and 126 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 14:12:25,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:12:25,252 INFO L93 Difference]: Finished difference Result 175 states and 219 transitions. [2023-12-02 14:12:25,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:12:25,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2023-12-02 14:12:25,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:12:25,253 INFO L225 Difference]: With dead ends: 175 [2023-12-02 14:12:25,253 INFO L226 Difference]: Without dead ends: 95 [2023-12-02 14:12:25,254 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 14:12:25,255 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 20 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:12:25,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 80 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:12:25,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-12-02 14:12:25,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 80. [2023-12-02 14:12:25,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 68 states have (on average 1.5) internal successors, (102), 79 states have internal predecessors, (102), 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 14:12:25,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 102 transitions. [2023-12-02 14:12:25,261 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 102 transitions. Word has length 21 [2023-12-02 14:12:25,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:12:25,262 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 102 transitions. [2023-12-02 14:12:25,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 14:12:25,262 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 102 transitions. [2023-12-02 14:12:25,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 14:12:25,263 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:12:25,263 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 14:12:25,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 14:12:25,263 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 14:12:25,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:12:25,264 INFO L85 PathProgramCache]: Analyzing trace with hash 2031212169, now seen corresponding path program 1 times [2023-12-02 14:12:25,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:12:25,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960298333] [2023-12-02 14:12:25,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:12:25,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:12:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:12:25,706 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:12:25,706 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:12:25,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960298333] [2023-12-02 14:12:25,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960298333] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:12:25,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375474890] [2023-12-02 14:12:25,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:12:25,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:12:25,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:12:25,708 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:12:25,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 14:12:25,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:12:25,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 14:12:25,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:12:27,678 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:12:27,678 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:12:29,844 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:12:29,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375474890] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:12:29,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [10109343] [2023-12-02 14:12:29,862 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2023-12-02 14:12:29,862 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:12:29,865 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:12:29,871 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:12:29,871 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:12:35,151 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:12:39,204 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1976#(and (or (and (= ~mode2~0 0) (exists ((v_~mode2~0_65 Int)) (not (= (mod v_~mode2~0_65 256) 0)))) (and (= ~mode2~0 1) (or (exists ((v_~p2_new~0_41 Int)) (and (<= (mod v_~p2_new~0_41 256) 127) (or (and (<= 128 (mod ~send2~0 256)) (or (and (= (mod ~send2~0 256) (+ 256 ~p2_old~0)) (= v_~p2_new~0_41 ~nomsg~0)) (and (not (= v_~p2_new~0_41 ~nomsg~0)) (= ~p2_old~0 (mod v_~p2_new~0_41 256))))) (and (<= (mod ~send2~0 256) 127) (or (and (= v_~p2_new~0_41 ~nomsg~0) (= (mod ~send2~0 256) ~p2_old~0)) (and (not (= v_~p2_new~0_41 ~nomsg~0)) (= ~p2_old~0 (mod v_~p2_new~0_41 256)))))))) (exists ((v_~p2_new~0_41 Int)) (and (or (and (or (and (not (= v_~p2_new~0_41 ~nomsg~0)) (= (+ 256 ~p2_old~0) (mod v_~p2_new~0_41 256))) (and (= (mod ~send2~0 256) (+ 256 ~p2_old~0)) (= v_~p2_new~0_41 ~nomsg~0))) (<= 128 (mod ~send2~0 256))) (and (<= (mod ~send2~0 256) 127) (or (and (= v_~p2_new~0_41 ~nomsg~0) (= (mod ~send2~0 256) ~p2_old~0)) (and (not (= v_~p2_new~0_41 ~nomsg~0)) (= (+ 256 ~p2_old~0) (mod v_~p2_new~0_41 256)))))) (<= 128 (mod v_~p2_new~0_41 256))))) (exists ((v_~mode2~0_65 Int)) (= (mod v_~mode2~0_65 256) 0)))) (= ~nomsg~0 ~p1_new~0) (<= 0 ~mode1~0) (= ~p3_new~0 ~nomsg~0) (<= (+ 2147483649 ~st2~0 ~st1~0) 0) (or (and (= ~mode3~0 0) (exists ((v_~mode3~0_64 Int)) (not (= (mod v_~mode3~0_64 256) 0)))) (and (= ~mode3~0 1) (or (and (<= 128 (mod ~send3~0 256)) (or (exists ((v_~p3_new~0_33 Int)) (and (<= 128 (mod v_~p3_new~0_33 256)) (or (and (not (= v_~p3_new~0_33 ~nomsg~0)) (= (+ ~p3_old~0 256) (mod v_~p3_new~0_33 256))) (and (= (+ ~p3_old~0 256) (mod ~send3~0 256)) (= v_~p3_new~0_33 ~nomsg~0))))) (exists ((v_~p3_new~0_33 Int)) (and (<= (mod v_~p3_new~0_33 256) 127) (or (and (not (= v_~p3_new~0_33 ~nomsg~0)) (= ~p3_old~0 (mod v_~p3_new~0_33 256))) (and (= (+ ~p3_old~0 256) (mod ~send3~0 256)) (= v_~p3_new~0_33 ~nomsg~0))))))) (and (or (exists ((v_~p3_new~0_33 Int)) (and (<= 128 (mod v_~p3_new~0_33 256)) (or (and (= ~p3_old~0 (mod ~send3~0 256)) (= v_~p3_new~0_33 ~nomsg~0)) (and (not (= v_~p3_new~0_33 ~nomsg~0)) (= (+ ~p3_old~0 256) (mod v_~p3_new~0_33 256)))))) (exists ((v_~p3_new~0_33 Int)) (and (or (and (not (= v_~p3_new~0_33 ~nomsg~0)) (= ~p3_old~0 (mod v_~p3_new~0_33 256))) (and (= ~p3_old~0 (mod ~send3~0 256)) (= v_~p3_new~0_33 ~nomsg~0))) (<= (mod v_~p3_new~0_33 256) 127)))) (<= (mod ~send3~0 256) 127))) (exists ((v_~mode3~0_64 Int)) (= (mod v_~mode3~0_64 256) 0)))) (= ~nomsg~0 ~p2_new~0) (<= ~mode1~0 1))' at error location [2023-12-02 14:12:39,204 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 14:12:39,204 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:12:39,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 8] total 19 [2023-12-02 14:12:39,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151899757] [2023-12-02 14:12:39,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 14:12:39,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-02 14:12:39,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:12:39,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-02 14:12:39,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=1125, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 14:12:39,207 INFO L87 Difference]: Start difference. First operand 80 states and 102 transitions. Second operand has 21 states, 20 states have (on average 3.45) internal successors, (69), 20 states have internal predecessors, (69), 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 14:12:39,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:12:39,414 INFO L93 Difference]: Finished difference Result 117 states and 150 transitions. [2023-12-02 14:12:39,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 14:12:39,415 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.45) internal successors, (69), 20 states have internal predecessors, (69), 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 23 [2023-12-02 14:12:39,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:12:39,416 INFO L225 Difference]: With dead ends: 117 [2023-12-02 14:12:39,416 INFO L226 Difference]: Without dead ends: 111 [2023-12-02 14:12:39,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 703 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=298, Invalid=1184, Unknown=0, NotChecked=0, Total=1482 [2023-12-02 14:12:39,418 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 112 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 36 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 14:12:39,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 36 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 14:12:39,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-12-02 14:12:39,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 74. [2023-12-02 14:12:39,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 68 states have (on average 1.2647058823529411) internal successors, (86), 73 states have internal predecessors, (86), 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 14:12:39,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 86 transitions. [2023-12-02 14:12:39,424 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 86 transitions. Word has length 23 [2023-12-02 14:12:39,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:12:39,425 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 86 transitions. [2023-12-02 14:12:39,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.45) internal successors, (69), 20 states have internal predecessors, (69), 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 14:12:39,425 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 86 transitions. [2023-12-02 14:12:39,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-02 14:12:39,426 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:12:39,426 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 14:12:39,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 14:12:39,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:12:39,627 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 14:12:39,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:12:39,627 INFO L85 PathProgramCache]: Analyzing trace with hash 2079749675, now seen corresponding path program 1 times [2023-12-02 14:12:39,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:12:39,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776155391] [2023-12-02 14:12:39,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:12:39,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:12:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:12:39,892 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 14:12:39,892 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:12:39,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776155391] [2023-12-02 14:12:39,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776155391] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:12:39,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740710593] [2023-12-02 14:12:39,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:12:39,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:12:39,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:12:39,894 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:12:39,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 14:12:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:12:39,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 14:12:39,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:12:41,454 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:12:41,454 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:12:43,134 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:12:43,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740710593] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:12:43,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [801505060] [2023-12-02 14:12:43,137 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2023-12-02 14:12:43,137 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:12:43,137 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:12:43,137 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:12:43,138 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:12:48,246 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:12:52,074 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2355#(and (= ~nomsg~0 ~p1_new~0) (or (and (exists ((v_~mode3~0_73 Int)) (not (= (mod v_~mode3~0_73 256) 0))) (= ~mode3~0 0)) (and (= ~mode3~0 1) (exists ((v_~mode3~0_73 Int)) (= (mod v_~mode3~0_73 256) 0)) (or (exists ((v_~p3_new~0_40 Int)) (and (<= 128 (mod v_~p3_new~0_40 256)) (or (and (or (and (not (= v_~p3_new~0_40 ~nomsg~0)) (= (+ ~p3_old~0 256) (mod v_~p3_new~0_40 256))) (and (= ~p3_old~0 (mod ~send3~0 256)) (= v_~p3_new~0_40 ~nomsg~0))) (<= (mod ~send3~0 256) 127)) (and (or (and (= (+ ~p3_old~0 256) (mod ~send3~0 256)) (= v_~p3_new~0_40 ~nomsg~0)) (and (not (= v_~p3_new~0_40 ~nomsg~0)) (= (+ ~p3_old~0 256) (mod v_~p3_new~0_40 256)))) (<= 128 (mod ~send3~0 256)))))) (exists ((v_~p3_new~0_40 Int)) (and (or (and (<= (mod ~send3~0 256) 127) (or (and (= ~p3_old~0 (mod v_~p3_new~0_40 256)) (not (= v_~p3_new~0_40 ~nomsg~0))) (and (= ~p3_old~0 (mod ~send3~0 256)) (= v_~p3_new~0_40 ~nomsg~0)))) (and (or (and (= (+ ~p3_old~0 256) (mod ~send3~0 256)) (= v_~p3_new~0_40 ~nomsg~0)) (and (= ~p3_old~0 (mod v_~p3_new~0_40 256)) (not (= v_~p3_new~0_40 ~nomsg~0)))) (<= 128 (mod ~send3~0 256)))) (<= (mod v_~p3_new~0_40 256) 127)))))) (<= 0 (+ ~st2~0 ~st1~0 2147483648)) (<= 0 ~mode1~0) (= ~p3_new~0 ~nomsg~0) (<= (+ ~st2~0 ~st1~0) 2147483647) (<= (+ 2147483649 ~st3~0 ~st2~0 ~st1~0) 0) (= ~nomsg~0 ~p2_new~0) (<= ~mode1~0 1) (or (and (= ~mode2~0 1) (or (and (or (exists ((v_~p2_new~0_48 Int)) (and (<= (mod v_~p2_new~0_48 256) 127) (or (and (= ~p2_old~0 (mod v_~p2_new~0_48 256)) (not (= v_~p2_new~0_48 ~nomsg~0))) (and (= (mod ~send2~0 256) (+ 256 ~p2_old~0)) (= v_~p2_new~0_48 ~nomsg~0))))) (exists ((v_~p2_new~0_48 Int)) (and (or (and (= (+ 256 ~p2_old~0) (mod v_~p2_new~0_48 256)) (not (= v_~p2_new~0_48 ~nomsg~0))) (and (= (mod ~send2~0 256) (+ 256 ~p2_old~0)) (= v_~p2_new~0_48 ~nomsg~0))) (<= 128 (mod v_~p2_new~0_48 256))))) (<= 128 (mod ~send2~0 256))) (and (<= (mod ~send2~0 256) 127) (or (exists ((v_~p2_new~0_48 Int)) (and (or (and (= (mod ~send2~0 256) ~p2_old~0) (= v_~p2_new~0_48 ~nomsg~0)) (and (= (+ 256 ~p2_old~0) (mod v_~p2_new~0_48 256)) (not (= v_~p2_new~0_48 ~nomsg~0)))) (<= 128 (mod v_~p2_new~0_48 256)))) (exists ((v_~p2_new~0_48 Int)) (and (<= (mod v_~p2_new~0_48 256) 127) (or (and (= ~p2_old~0 (mod v_~p2_new~0_48 256)) (not (= v_~p2_new~0_48 ~nomsg~0))) (and (= (mod ~send2~0 256) ~p2_old~0) (= v_~p2_new~0_48 ~nomsg~0)))))))) (exists ((v_~mode2~0_73 Int)) (= (mod v_~mode2~0_73 256) 0))) (and (= ~mode2~0 0) (exists ((v_~mode2~0_73 Int)) (not (= (mod v_~mode2~0_73 256) 0))))))' at error location [2023-12-02 14:12:52,074 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 14:12:52,074 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:12:52,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 15 [2023-12-02 14:12:52,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309042247] [2023-12-02 14:12:52,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 14:12:52,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-02 14:12:52,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:12:52,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-02 14:12:52,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=902, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 14:12:52,077 INFO L87 Difference]: Start difference. First operand 74 states and 86 transitions. Second operand has 17 states, 16 states have (on average 4.5) internal successors, (72), 16 states have internal predecessors, (72), 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 14:12:52,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:12:52,265 INFO L93 Difference]: Finished difference Result 108 states and 126 transitions. [2023-12-02 14:12:52,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 14:12:52,265 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.5) internal successors, (72), 16 states have internal predecessors, (72), 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 25 [2023-12-02 14:12:52,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:12:52,266 INFO L225 Difference]: With dead ends: 108 [2023-12-02 14:12:52,266 INFO L226 Difference]: Without dead ends: 105 [2023-12-02 14:12:52,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=260, Invalid=1072, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 14:12:52,268 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 160 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:12:52,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 40 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:12:52,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-12-02 14:12:52,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 71. [2023-12-02 14:12:52,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 68 states have (on average 1.1764705882352942) internal successors, (80), 70 states have internal predecessors, (80), 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 14:12:52,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 80 transitions. [2023-12-02 14:12:52,274 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 80 transitions. Word has length 25 [2023-12-02 14:12:52,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:12:52,274 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 80 transitions. [2023-12-02 14:12:52,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.5) internal successors, (72), 16 states have internal predecessors, (72), 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 14:12:52,275 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 80 transitions. [2023-12-02 14:12:52,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-02 14:12:52,275 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:12:52,275 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:12:52,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 14:12:52,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:12:52,476 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 14:12:52,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:12:52,477 INFO L85 PathProgramCache]: Analyzing trace with hash 47730728, now seen corresponding path program 1 times [2023-12-02 14:12:52,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:12:52,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622172216] [2023-12-02 14:12:52,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:12:52,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:12:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:12:52,977 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:12:52,977 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:12:52,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622172216] [2023-12-02 14:12:52,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622172216] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:12:52,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291198581] [2023-12-02 14:12:52,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:12:52,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:12:52,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:12:52,979 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:12:52,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 14:12:53,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:12:53,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 14:12:53,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:12:55,076 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:12:55,076 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:13:03,397 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:13:03,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291198581] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:13:03,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1109187935] [2023-12-02 14:13:03,400 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2023-12-02 14:13:03,400 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:13:03,400 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:13:03,401 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:13:03,401 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:13:08,533 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:13:12,124 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2734#(and (<= 0 |ULTIMATE.start_main_~c1~0#1|) (<= 0 ~id3~0) (<= 1 |#StackHeapBarrier|) (<= 0 ~mode1~0) (<= 0 ~id1~0) (= ~p2~0 0) (= (+ ~p1_new~0 1) 0) (= |ULTIMATE.start_init_#res#1| 1) (= |ULTIMATE.start_main_~i2~0#1| 0) (<= |ULTIMATE.start_main_~c1~0#1| 1) (<= ~id1~0 127) (<= ~mode1~0 1) (= (+ ~nomsg~0 1) 0) (<= ~id3~0 127) (<= 0 ~id2~0) (= (+ ~p3_new~0 1) 0) (<= ~id2~0 127) (<= 2147483648 (+ ~st3~0 ~st2~0 ~st1~0)) (= ~p3~0 0) (= ~p1~0 0) (= (+ ~p2_new~0 1) 0))' at error location [2023-12-02 14:13:12,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 14:13:12,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:13:12,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 7] total 17 [2023-12-02 14:13:12,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473083412] [2023-12-02 14:13:12,125 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 14:13:12,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-02 14:13:12,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:13:12,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-02 14:13:12,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=997, Unknown=0, NotChecked=0, Total=1260 [2023-12-02 14:13:12,127 INFO L87 Difference]: Start difference. First operand 71 states and 80 transitions. Second operand has 19 states, 18 states have (on average 4.222222222222222) internal successors, (76), 18 states have internal predecessors, (76), 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 14:13:12,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:13:12,212 INFO L93 Difference]: Finished difference Result 77 states and 86 transitions. [2023-12-02 14:13:12,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 14:13:12,212 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.222222222222222) internal successors, (76), 18 states have internal predecessors, (76), 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 26 [2023-12-02 14:13:12,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:13:12,212 INFO L225 Difference]: With dead ends: 77 [2023-12-02 14:13:12,213 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 14:13:12,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 559 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=263, Invalid=997, Unknown=0, NotChecked=0, Total=1260 [2023-12-02 14:13:12,214 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 22 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:13:12,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 27 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:13:12,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 14:13:12,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 14:13:12,215 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 14:13:12,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 14:13:12,215 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2023-12-02 14:13:12,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:13:12,216 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 14:13:12,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.222222222222222) internal successors, (76), 18 states have internal predecessors, (76), 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 14:13:12,216 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 14:13:12,216 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 14:13:12,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2023-12-02 14:13:12,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2023-12-02 14:13:12,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2023-12-02 14:13:12,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2023-12-02 14:13:12,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2023-12-02 14:13:12,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2023-12-02 14:13:12,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2023-12-02 14:13:12,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2023-12-02 14:13:12,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2023-12-02 14:13:12,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2023-12-02 14:13:12,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2023-12-02 14:13:12,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2023-12-02 14:13:12,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2023-12-02 14:13:12,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2023-12-02 14:13:12,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 14:13:12,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:13:12,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 14:13:12,511 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 208) no Hoare annotation was computed. [2023-12-02 14:13:12,511 INFO L899 garLoopResultBuilder]: For program point L217(line 217) no Hoare annotation was computed. [2023-12-02 14:13:12,511 INFO L899 garLoopResultBuilder]: For program point L217-1(line 217) no Hoare annotation was computed. [2023-12-02 14:13:12,512 INFO L899 garLoopResultBuilder]: For program point L217-2(line 217) no Hoare annotation was computed. [2023-12-02 14:13:12,512 INFO L899 garLoopResultBuilder]: For program point L217-3(line 217) no Hoare annotation was computed. [2023-12-02 14:13:12,512 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 212) no Hoare annotation was computed. [2023-12-02 14:13:12,512 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 212) no Hoare annotation was computed. [2023-12-02 14:13:12,512 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 76) no Hoare annotation was computed. [2023-12-02 14:13:12,512 INFO L899 garLoopResultBuilder]: For program point L57-2(lines 51 79) no Hoare annotation was computed. [2023-12-02 14:13:12,512 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 217) no Hoare annotation was computed. [2023-12-02 14:13:12,512 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 14:13:12,512 INFO L899 garLoopResultBuilder]: For program point L58-2(lines 58 60) no Hoare annotation was computed. [2023-12-02 14:13:12,512 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 217) no Hoare annotation was computed. [2023-12-02 14:13:12,513 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 208) no Hoare annotation was computed. [2023-12-02 14:13:12,513 INFO L899 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2023-12-02 14:13:12,513 INFO L899 garLoopResultBuilder]: For program point L208-1(line 208) no Hoare annotation was computed. [2023-12-02 14:13:12,513 INFO L899 garLoopResultBuilder]: For program point L208-2(line 208) no Hoare annotation was computed. [2023-12-02 14:13:12,513 INFO L899 garLoopResultBuilder]: For program point L208-3(line 208) no Hoare annotation was computed. [2023-12-02 14:13:12,513 INFO L899 garLoopResultBuilder]: For program point L208-4(lines 208 227) no Hoare annotation was computed. [2023-12-02 14:13:12,513 INFO L899 garLoopResultBuilder]: For program point L208-5(lines 208 227) no Hoare annotation was computed. [2023-12-02 14:13:12,513 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 212) no Hoare annotation was computed. [2023-12-02 14:13:12,513 INFO L899 garLoopResultBuilder]: For program point L209(lines 209 224) no Hoare annotation was computed. [2023-12-02 14:13:12,513 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 212) no Hoare annotation was computed. [2023-12-02 14:13:12,513 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2023-12-02 14:13:12,514 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2023-12-02 14:13:12,514 INFO L895 garLoopResultBuilder]: At program point L260-2(lines 260 274) the Hoare annotation is: (let ((.cse0 (or (= ~st2~0 1) (= ~st2~0 0))) (.cse1 (or (= ~st3~0 0) (= ~st3~0 1))) (.cse2 (or (= ~st1~0 1) (= ~st1~0 0)))) (or (and .cse0 (= ~mode1~0 1) .cse1 .cse2) (and .cse0 (= (* 256 (div ~mode1~0 256)) ~mode1~0) .cse1 .cse2))) [2023-12-02 14:13:12,514 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2023-12-02 14:13:12,514 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 14:13:12,514 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2023-12-02 14:13:12,514 INFO L899 garLoopResultBuilder]: For program point L212-1(line 212) no Hoare annotation was computed. [2023-12-02 14:13:12,514 INFO L899 garLoopResultBuilder]: For program point L212-2(line 212) no Hoare annotation was computed. [2023-12-02 14:13:12,514 INFO L899 garLoopResultBuilder]: For program point L212-3(line 212) no Hoare annotation was computed. [2023-12-02 14:13:12,515 INFO L899 garLoopResultBuilder]: For program point L212-4(lines 212 224) no Hoare annotation was computed. [2023-12-02 14:13:12,515 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 217) no Hoare annotation was computed. [2023-12-02 14:13:12,515 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 217) no Hoare annotation was computed. [2023-12-02 14:13:12,515 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 208) no Hoare annotation was computed. [2023-12-02 14:13:12,515 INFO L899 garLoopResultBuilder]: For program point $Ultimate##103(lines 214 221) no Hoare annotation was computed. [2023-12-02 14:13:12,515 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 208) no Hoare annotation was computed. [2023-12-02 14:13:12,517 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:13:12,519 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 14:13:12,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:13:12 BoogieIcfgContainer [2023-12-02 14:13:12,528 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 14:13:12,529 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 14:13:12,529 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 14:13:12,529 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 14:13:12,529 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:12:22" (3/4) ... [2023-12-02 14:13:12,530 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 14:13:12,541 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 51 nodes and edges [2023-12-02 14:13:12,542 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-12-02 14:13:12,543 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 14:13:12,544 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 14:13:12,645 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 14:13:12,646 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 14:13:12,646 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 14:13:12,646 INFO L158 Benchmark]: Toolchain (without parser) took 51047.87ms. Allocated memory was 165.7MB in the beginning and 799.0MB in the end (delta: 633.3MB). Free memory was 123.1MB in the beginning and 558.3MB in the end (delta: -435.2MB). Peak memory consumption was 198.7MB. Max. memory is 16.1GB. [2023-12-02 14:13:12,647 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 102.8MB. Free memory is still 54.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:13:12,647 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.84ms. Allocated memory is still 165.7MB. Free memory was 123.1MB in the beginning and 109.9MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 14:13:12,648 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.84ms. Allocated memory is still 165.7MB. Free memory was 109.9MB in the beginning and 107.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 14:13:12,648 INFO L158 Benchmark]: Boogie Preprocessor took 27.86ms. Allocated memory is still 165.7MB. Free memory was 107.4MB in the beginning and 105.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 14:13:12,648 INFO L158 Benchmark]: RCFGBuilder took 688.67ms. Allocated memory is still 165.7MB. Free memory was 105.8MB in the beginning and 122.5MB in the end (delta: -16.7MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. [2023-12-02 14:13:12,649 INFO L158 Benchmark]: TraceAbstraction took 49908.50ms. Allocated memory was 165.7MB in the beginning and 799.0MB in the end (delta: 633.3MB). Free memory was 121.6MB in the beginning and 565.6MB in the end (delta: -444.0MB). Peak memory consumption was 190.0MB. Max. memory is 16.1GB. [2023-12-02 14:13:12,649 INFO L158 Benchmark]: Witness Printer took 117.35ms. Allocated memory is still 799.0MB. Free memory was 565.6MB in the beginning and 558.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 14:13:12,651 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 102.8MB. Free memory is still 54.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.84ms. Allocated memory is still 165.7MB. Free memory was 123.1MB in the beginning and 109.9MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.84ms. Allocated memory is still 165.7MB. Free memory was 109.9MB in the beginning and 107.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.86ms. Allocated memory is still 165.7MB. Free memory was 107.4MB in the beginning and 105.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 688.67ms. Allocated memory is still 165.7MB. Free memory was 105.8MB in the beginning and 122.5MB in the end (delta: -16.7MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. * TraceAbstraction took 49908.50ms. Allocated memory was 165.7MB in the beginning and 799.0MB in the end (delta: 633.3MB). Free memory was 121.6MB in the beginning and 565.6MB in the end (delta: -444.0MB). Peak memory consumption was 190.0MB. Max. memory is 16.1GB. * Witness Printer took 117.35ms. Allocated memory is still 799.0MB. Free memory was 565.6MB in the beginning and 558.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * 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: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 208]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 208]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 208]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 208]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 212]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 212]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 212]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 212]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 217]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 217]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 217]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 217]: 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 1 procedures, 38 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 49.8s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 482 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 482 mSDsluCounter, 522 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 256 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 757 IncrementalHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 266 mSDtfsCounter, 757 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 251 GetRequests, 129 SyntacticMatches, 4 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1860 ImplicationChecksByTransitivity, 13.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=6, InterpolantAutomatonStates: 53, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 163 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 5 NumberOfFragments, 55 HoareAnnotationTreeSize, 1 FomulaSimplifications, 674 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 224 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 20.1s InterpolantComputationTime, 235 NumberOfCodeBlocks, 235 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 292 ConstructedInterpolants, 0 QuantifiedInterpolants, 10770 SizeOfPredicates, 71 NumberOfNonLiveVariables, 401 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 17 InterpolantComputations, 8 PerfectInterpolantSequences, 14/63 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: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold - InvariantResult [Line: 260]: Loop Invariant Derived loop invariant: ((((((st2 == 1) || (st2 == 0)) && (mode1 == 1)) && ((st3 == 0) || (st3 == 1))) && ((st1 == 1) || (st1 == 0))) || (((((st2 == 1) || (st2 == 0)) && ((256 * (mode1 / 256)) == mode1)) && ((st3 == 0) || (st3 == 1))) && ((st1 == 1) || (st1 == 0)))) RESULT: Ultimate proved your program to be correct! [2023-12-02 14:13:12,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35e28-2cb7-451f-aab9-6192e1ebb904/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE