./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 376367d14f0ef5deff3321a7267050cf9f2383eb99d0a19dad6a556c0772ff28 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:12:05,484 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:12:05,601 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-21 22:12:05,612 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:12:05,613 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:12:05,651 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:12:05,653 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:12:05,654 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:12:05,655 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:12:05,660 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:12:05,661 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:12:05,662 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:12:05,663 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:12:05,665 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:12:05,665 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:12:05,666 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:12:05,667 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:12:05,667 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:12:05,668 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:12:05,668 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:12:05,669 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:12:05,669 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:12:05,670 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:12:05,671 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:12:05,671 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 22:12:05,672 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:12:05,672 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:12:05,673 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:12:05,673 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:12:05,674 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:12:05,676 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:12:05,676 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:12:05,677 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:12:05,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:12:05,677 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:12:05,678 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:12:05,678 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:12:05,678 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:12:05,679 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:12:05,679 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:12:05,679 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:12:05,680 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:12:05,680 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:12:05,680 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:12:05,681 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 376367d14f0ef5deff3321a7267050cf9f2383eb99d0a19dad6a556c0772ff28 [2023-11-21 22:12:06,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:12:06,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:12:06,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:12:06,080 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:12:06,081 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:12:06,082 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound100.c [2023-11-21 22:12:09,344 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:12:09,603 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:12:09,604 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound100.c [2023-11-21 22:12:09,613 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/data/499a46593/d8175611b7a34f8fa08fda41edb02b16/FLAGff6584701 [2023-11-21 22:12:09,629 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/data/499a46593/d8175611b7a34f8fa08fda41edb02b16 [2023-11-21 22:12:09,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:12:09,633 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:12:09,635 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:12:09,635 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:12:09,641 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:12:09,642 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:12:09" (1/1) ... [2023-11-21 22:12:09,643 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3098af86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:09, skipping insertion in model container [2023-11-21 22:12:09,643 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:12:09" (1/1) ... [2023-11-21 22:12:09,686 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:12:09,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:12:09,888 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:12:09,930 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:12:09,949 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:12:09,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:09 WrapperNode [2023-11-21 22:12:09,951 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:12:09,952 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:12:09,957 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:12:09,958 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:12:09,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:09" (1/1) ... [2023-11-21 22:12:09,982 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:09" (1/1) ... [2023-11-21 22:12:10,006 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2023-11-21 22:12:10,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:12:10,007 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:12:10,008 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:12:10,008 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:12:10,020 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:09" (1/1) ... [2023-11-21 22:12:10,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:09" (1/1) ... [2023-11-21 22:12:10,023 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:09" (1/1) ... [2023-11-21 22:12:10,033 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:12:10,034 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:09" (1/1) ... [2023-11-21 22:12:10,039 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:09" (1/1) ... [2023-11-21 22:12:10,043 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:09" (1/1) ... [2023-11-21 22:12:10,047 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:09" (1/1) ... [2023-11-21 22:12:10,051 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:09" (1/1) ... [2023-11-21 22:12:10,052 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:09" (1/1) ... [2023-11-21 22:12:10,055 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:12:10,056 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:12:10,056 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:12:10,056 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:12:10,057 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:09" (1/1) ... [2023-11-21 22:12:10,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:12:10,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:12:10,102 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:12:10,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:12:10,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:12:10,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:12:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:12:10,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:12:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 22:12:10,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 22:12:10,228 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:12:10,230 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:12:10,559 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:12:10,695 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:12:10,695 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 22:12:10,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:12:10 BoogieIcfgContainer [2023-11-21 22:12:10,697 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:12:10,700 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:12:10,700 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:12:10,704 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:12:10,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:12:09" (1/3) ... [2023-11-21 22:12:10,705 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387311d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:12:10, skipping insertion in model container [2023-11-21 22:12:10,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:09" (2/3) ... [2023-11-21 22:12:10,706 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387311d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:12:10, skipping insertion in model container [2023-11-21 22:12:10,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:12:10" (3/3) ... [2023-11-21 22:12:10,708 INFO L112 eAbstractionObserver]: Analyzing ICFG dijkstra-u_unwindbound100.c [2023-11-21 22:12:10,724 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:12:10,724 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-21 22:12:10,778 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:12:10,787 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=PETRI_NET, 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;@9906671, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:12:10,787 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-21 22:12:10,792 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 17 states have internal predecessors, (23), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-21 22:12:10,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 22:12:10,799 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:12:10,800 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 22:12:10,800 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 22:12:10,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:10,807 INFO L85 PathProgramCache]: Analyzing trace with hash 134989, now seen corresponding path program 1 times [2023-11-21 22:12:10,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:10,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517207088] [2023-11-21 22:12:10,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:10,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:10,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:11,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:11,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:11,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517207088] [2023-11-21 22:12:11,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517207088] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:11,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:11,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:12:11,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882069569] [2023-11-21 22:12:11,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:11,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:12:11,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:11,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:12:11,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:12:11,089 INFO L87 Difference]: Start difference. First operand has 28 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 17 states have internal predecessors, (23), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:11,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:12:11,191 INFO L93 Difference]: Finished difference Result 54 states and 79 transitions. [2023-11-21 22:12:11,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:12:11,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-21 22:12:11,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:12:11,205 INFO L225 Difference]: With dead ends: 54 [2023-11-21 22:12:11,206 INFO L226 Difference]: Without dead ends: 27 [2023-11-21 22:12:11,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:12:11,213 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 4 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:12:11,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 89 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:12:11,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-11-21 22:12:11,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-11-21 22:12:11,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 16 states have (on average 1.375) internal successors, (22), 19 states have internal predecessors, (22), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-21 22:12:11,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2023-11-21 22:12:11,264 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 3 [2023-11-21 22:12:11,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:12:11,265 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2023-11-21 22:12:11,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:11,266 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2023-11-21 22:12:11,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 22:12:11,268 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:12:11,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:11,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:12:11,269 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 22:12:11,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:11,271 INFO L85 PathProgramCache]: Analyzing trace with hash -804138232, now seen corresponding path program 1 times [2023-11-21 22:12:11,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:11,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574416452] [2023-11-21 22:12:11,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:11,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:11,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:11,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:11,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574416452] [2023-11-21 22:12:11,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574416452] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:11,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:11,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:12:11,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211294243] [2023-11-21 22:12:11,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:11,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:12:11,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:11,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:12:11,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:12:11,482 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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) [2023-11-21 22:12:13,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-21 22:12:13,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:12:13,671 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions. [2023-11-21 22:12:13,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 22:12:13,672 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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 [2023-11-21 22:12:13,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:12:13,673 INFO L225 Difference]: With dead ends: 48 [2023-11-21 22:12:13,673 INFO L226 Difference]: Without dead ends: 47 [2023-11-21 22:12:13,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:12:13,675 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 28 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:12:13,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 87 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 100 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2023-11-21 22:12:13,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-21 22:12:13,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2023-11-21 22:12:13,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 26 states have internal predecessors, (31), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:12:13,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2023-11-21 22:12:13,691 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 8 [2023-11-21 22:12:13,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:12:13,691 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2023-11-21 22:12:13,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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) [2023-11-21 22:12:13,692 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2023-11-21 22:12:13,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 22:12:13,692 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:12:13,693 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:13,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:12:13,693 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 22:12:13,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:13,694 INFO L85 PathProgramCache]: Analyzing trace with hash -804136982, now seen corresponding path program 1 times [2023-11-21 22:12:13,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:13,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624722092] [2023-11-21 22:12:13,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:13,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:13,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:13,856 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:13,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:13,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624722092] [2023-11-21 22:12:13,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624722092] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:12:13,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856336442] [2023-11-21 22:12:13,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:13,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:12:13,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:12:13,860 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:12:13,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:12:13,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:13,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:12:13,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:12:13,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:13,995 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:12:13,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856336442] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:13,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:12:13,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 9 [2023-11-21 22:12:13,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633050593] [2023-11-21 22:12:13,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:13,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:12:13,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:13,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:12:13,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:12:13,998 INFO L87 Difference]: Start difference. First operand 41 states and 55 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 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) [2023-11-21 22:12:14,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:12:14,067 INFO L93 Difference]: Finished difference Result 49 states and 64 transitions. [2023-11-21 22:12:14,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:12:14,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 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 [2023-11-21 22:12:14,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:12:14,083 INFO L225 Difference]: With dead ends: 49 [2023-11-21 22:12:14,084 INFO L226 Difference]: Without dead ends: 48 [2023-11-21 22:12:14,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:12:14,088 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 12 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:12:14,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 73 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:12:14,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-21 22:12:14,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 40. [2023-11-21 22:12:14,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 25 states have internal predecessors, (30), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:12:14,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 54 transitions. [2023-11-21 22:12:14,112 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 54 transitions. Word has length 8 [2023-11-21 22:12:14,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:12:14,112 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 54 transitions. [2023-11-21 22:12:14,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 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) [2023-11-21 22:12:14,113 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2023-11-21 22:12:14,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 22:12:14,113 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:12:14,113 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:14,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:12:14,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:12:14,336 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 22:12:14,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:14,336 INFO L85 PathProgramCache]: Analyzing trace with hash 841518653, now seen corresponding path program 1 times [2023-11-21 22:12:14,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:14,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44646356] [2023-11-21 22:12:14,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:14,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:14,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:14,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:14,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:14,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44646356] [2023-11-21 22:12:14,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44646356] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:14,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:14,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:12:14,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624833794] [2023-11-21 22:12:14,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:14,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:12:14,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:14,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:12:14,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:12:14,509 INFO L87 Difference]: Start difference. First operand 40 states and 54 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:14,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:12:14,613 INFO L93 Difference]: Finished difference Result 49 states and 63 transitions. [2023-11-21 22:12:14,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 22:12:14,614 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 9 [2023-11-21 22:12:14,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:12:14,616 INFO L225 Difference]: With dead ends: 49 [2023-11-21 22:12:14,617 INFO L226 Difference]: Without dead ends: 48 [2023-11-21 22:12:14,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:12:14,625 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 12 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:12:14,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 77 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:12:14,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-21 22:12:14,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 43. [2023-11-21 22:12:14,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 28 states have internal predecessors, (33), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:12:14,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2023-11-21 22:12:14,650 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 9 [2023-11-21 22:12:14,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:12:14,650 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2023-11-21 22:12:14,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:14,651 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2023-11-21 22:12:14,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 22:12:14,652 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:12:14,652 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-11-21 22:12:14,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:12:14,653 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 22:12:14,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:14,656 INFO L85 PathProgramCache]: Analyzing trace with hash 841557382, now seen corresponding path program 1 times [2023-11-21 22:12:14,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:14,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348403683] [2023-11-21 22:12:14,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:14,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:14,811 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:14,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:14,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348403683] [2023-11-21 22:12:14,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348403683] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:12:14,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649660998] [2023-11-21 22:12:14,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:14,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:12:14,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:12:14,816 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:12:14,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 22:12:14,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:14,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:12:14,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:12:14,933 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:14,933 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:12:14,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649660998] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:14,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:12:14,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 9 [2023-11-21 22:12:14,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723577976] [2023-11-21 22:12:14,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:14,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:12:14,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:14,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:12:14,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:12:14,937 INFO L87 Difference]: Start difference. First operand 43 states and 57 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:15,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:12:15,030 INFO L93 Difference]: Finished difference Result 48 states and 62 transitions. [2023-11-21 22:12:15,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:12:15,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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 9 [2023-11-21 22:12:15,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:12:15,033 INFO L225 Difference]: With dead ends: 48 [2023-11-21 22:12:15,033 INFO L226 Difference]: Without dead ends: 47 [2023-11-21 22:12:15,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-21 22:12:15,035 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 9 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:12:15,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 78 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:12:15,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-21 22:12:15,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 42. [2023-11-21 22:12:15,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 27 states have internal predecessors, (32), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:12:15,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2023-11-21 22:12:15,053 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 9 [2023-11-21 22:12:15,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:12:15,054 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2023-11-21 22:12:15,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:15,054 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2023-11-21 22:12:15,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 22:12:15,055 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:12:15,055 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:15,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:12:15,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:12:15,284 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 22:12:15,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:15,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1111911503, now seen corresponding path program 1 times [2023-11-21 22:12:15,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:15,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355827847] [2023-11-21 22:12:15,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:15,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:15,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:15,427 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:15,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:15,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355827847] [2023-11-21 22:12:15,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355827847] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:12:15,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325819172] [2023-11-21 22:12:15,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:15,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:12:15,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:12:15,429 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:12:15,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 22:12:15,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:15,485 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:12:15,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:12:15,546 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:15,546 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:12:15,610 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:15,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1325819172] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:12:15,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:12:15,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2023-11-21 22:12:15,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351719012] [2023-11-21 22:12:15,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:12:15,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-21 22:12:15,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:15,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-21 22:12:15,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-11-21 22:12:15,614 INFO L87 Difference]: Start difference. First operand 42 states and 56 transitions. Second operand has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:15,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:12:15,792 INFO L93 Difference]: Finished difference Result 81 states and 105 transitions. [2023-11-21 22:12:15,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-21 22:12:15,794 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-21 22:12:15,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:12:15,795 INFO L225 Difference]: With dead ends: 81 [2023-11-21 22:12:15,795 INFO L226 Difference]: Without dead ends: 66 [2023-11-21 22:12:15,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2023-11-21 22:12:15,797 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 34 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:12:15,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 108 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:12:15,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-21 22:12:15,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 56. [2023-11-21 22:12:15,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 40 states have (on average 1.2) internal successors, (48), 41 states have internal predecessors, (48), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:12:15,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 72 transitions. [2023-11-21 22:12:15,817 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 72 transitions. Word has length 12 [2023-11-21 22:12:15,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:12:15,817 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 72 transitions. [2023-11-21 22:12:15,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:15,818 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 72 transitions. [2023-11-21 22:12:15,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 22:12:15,819 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:12:15,819 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-21 22:12:15,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:12:16,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:12:16,041 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 22:12:16,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:16,041 INFO L85 PathProgramCache]: Analyzing trace with hash 109569163, now seen corresponding path program 1 times [2023-11-21 22:12:16,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:16,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760690139] [2023-11-21 22:12:16,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:16,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:16,162 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:16,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:16,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760690139] [2023-11-21 22:12:16,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760690139] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:12:16,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780491666] [2023-11-21 22:12:16,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:16,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:12:16,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:12:16,165 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:12:16,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 22:12:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:16,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 22:12:16,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:12:16,319 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:16,319 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:12:16,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780491666] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:16,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:12:16,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 13 [2023-11-21 22:12:16,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582185159] [2023-11-21 22:12:16,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:16,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:12:16,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:16,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:12:16,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-11-21 22:12:16,321 INFO L87 Difference]: Start difference. First operand 56 states and 72 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:16,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:12:16,403 INFO L93 Difference]: Finished difference Result 56 states and 72 transitions. [2023-11-21 22:12:16,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:12:16,403 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-21 22:12:16,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:12:16,405 INFO L225 Difference]: With dead ends: 56 [2023-11-21 22:12:16,405 INFO L226 Difference]: Without dead ends: 55 [2023-11-21 22:12:16,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2023-11-21 22:12:16,406 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 26 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:12:16,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 56 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:12:16,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-21 22:12:16,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 42. [2023-11-21 22:12:16,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 34 states have internal predecessors, (40), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-21 22:12:16,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 52 transitions. [2023-11-21 22:12:16,416 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 52 transitions. Word has length 13 [2023-11-21 22:12:16,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:12:16,416 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 52 transitions. [2023-11-21 22:12:16,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:16,416 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2023-11-21 22:12:16,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 22:12:16,417 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:12:16,417 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:16,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-21 22:12:16,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-21 22:12:16,637 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 22:12:16,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:16,637 INFO L85 PathProgramCache]: Analyzing trace with hash -898323174, now seen corresponding path program 1 times [2023-11-21 22:12:16,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:16,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621174580] [2023-11-21 22:12:16,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:16,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:16,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:16,777 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:16,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:16,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621174580] [2023-11-21 22:12:16,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621174580] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:12:16,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034010837] [2023-11-21 22:12:16,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:16,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:12:16,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:12:16,779 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:12:16,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-21 22:12:16,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:16,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 22:12:16,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:12:16,945 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:16,945 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:12:17,100 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:17,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034010837] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:12:17,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:12:17,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 18 [2023-11-21 22:12:17,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406996228] [2023-11-21 22:12:17,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:12:17,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-21 22:12:17,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:17,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-21 22:12:17,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2023-11-21 22:12:17,102 INFO L87 Difference]: Start difference. First operand 42 states and 52 transitions. Second operand has 19 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 19 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:19,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-21 22:12:21,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-21 22:12:21,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:12:21,487 INFO L93 Difference]: Finished difference Result 75 states and 98 transitions. [2023-11-21 22:12:21,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-21 22:12:21,488 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 19 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-21 22:12:21,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:12:21,489 INFO L225 Difference]: With dead ends: 75 [2023-11-21 22:12:21,489 INFO L226 Difference]: Without dead ends: 74 [2023-11-21 22:12:21,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=259, Invalid=733, Unknown=0, NotChecked=0, Total=992 [2023-11-21 22:12:21,491 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 87 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 24 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:12:21,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 125 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 193 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-11-21 22:12:21,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-11-21 22:12:21,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 68. [2023-11-21 22:12:21,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 46 states have (on average 1.1304347826086956) internal successors, (52), 46 states have internal predecessors, (52), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-21 22:12:21,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 88 transitions. [2023-11-21 22:12:21,505 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 88 transitions. Word has length 14 [2023-11-21 22:12:21,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:12:21,505 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 88 transitions. [2023-11-21 22:12:21,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 19 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:21,506 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 88 transitions. [2023-11-21 22:12:21,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-21 22:12:21,509 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:12:21,509 INFO L195 NwaCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2023-11-21 22:12:21,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-21 22:12:21,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:12:21,729 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 22:12:21,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:21,729 INFO L85 PathProgramCache]: Analyzing trace with hash -991650947, now seen corresponding path program 1 times [2023-11-21 22:12:21,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:21,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43598687] [2023-11-21 22:12:21,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:21,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:21,781 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:12:21,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1224700591] [2023-11-21 22:12:21,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:21,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:12:21,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:12:21,783 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:12:21,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-21 22:12:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:21,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-21 22:12:21,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:12:22,258 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 6 proven. 98 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-21 22:12:22,258 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:12:22,745 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-11-21 22:12:22,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:22,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43598687] [2023-11-21 22:12:22,745 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:12:22,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224700591] [2023-11-21 22:12:22,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224700591] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:12:22,746 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:12:22,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-11-21 22:12:22,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24012588] [2023-11-21 22:12:22,746 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:12:22,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-21 22:12:22,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:22,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-21 22:12:22,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2023-11-21 22:12:22,750 INFO L87 Difference]: Start difference. First operand 68 states and 88 transitions. Second operand has 24 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 24 states have internal predecessors, (58), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-21 22:12:25,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-21 22:12:27,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-21 22:12:29,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-21 22:12:29,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:12:29,750 INFO L93 Difference]: Finished difference Result 140 states and 188 transitions. [2023-11-21 22:12:29,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-21 22:12:29,751 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 24 states have internal predecessors, (58), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 65 [2023-11-21 22:12:29,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:12:29,753 INFO L225 Difference]: With dead ends: 140 [2023-11-21 22:12:29,754 INFO L226 Difference]: Without dead ends: 139 [2023-11-21 22:12:29,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=360, Invalid=1046, Unknown=0, NotChecked=0, Total=1406 [2023-11-21 22:12:29,756 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 81 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 29 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-11-21 22:12:29,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 105 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 265 Invalid, 3 Unknown, 0 Unchecked, 6.6s Time] [2023-11-21 22:12:29,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-11-21 22:12:29,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 107. [2023-11-21 22:12:29,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 64 states have (on average 1.09375) internal successors, (70), 64 states have internal predecessors, (70), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-21 22:12:29,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 142 transitions. [2023-11-21 22:12:29,784 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 142 transitions. Word has length 65 [2023-11-21 22:12:29,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:12:29,784 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 142 transitions. [2023-11-21 22:12:29,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 24 states have internal predecessors, (58), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-21 22:12:29,785 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 142 transitions. [2023-11-21 22:12:29,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-21 22:12:29,789 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:12:29,789 INFO L195 NwaCegarLoop]: trace histogram [36, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:29,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-21 22:12:30,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-21 22:12:30,012 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 22:12:30,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:30,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1161023587, now seen corresponding path program 1 times [2023-11-21 22:12:30,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:30,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063375169] [2023-11-21 22:12:30,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:30,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:30,071 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:12:30,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1815133464] [2023-11-21 22:12:30,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:30,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:12:30,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:12:30,073 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:12:30,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-21 22:12:30,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:30,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-21 22:12:30,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:12:30,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 0 proven. 1263 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-21 22:12:30,921 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:12:31,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2023-11-21 22:12:31,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:31,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063375169] [2023-11-21 22:12:31,775 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:12:31,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815133464] [2023-11-21 22:12:31,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815133464] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:12:31,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:12:31,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2023-11-21 22:12:31,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397543155] [2023-11-21 22:12:31,776 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:12:31,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-21 22:12:31,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:31,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-21 22:12:31,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=740, Unknown=0, NotChecked=0, Total=992 [2023-11-21 22:12:31,781 INFO L87 Difference]: Start difference. First operand 107 states and 142 transitions. Second operand has 32 states, 31 states have (on average 2.6451612903225805) internal successors, (82), 32 states have internal predecessors, (82), 12 states have call successors, (72), 7 states have call predecessors, (72), 7 states have return successors, (72), 12 states have call predecessors, (72), 12 states have call successors, (72) [2023-11-21 22:12:33,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-21 22:12:36,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-21 22:12:38,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-21 22:12:40,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-21 22:12:42,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-21 22:12:44,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-21 22:12:46,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-21 22:12:48,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-21 22:12:50,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-21 22:12:50,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:12:50,559 INFO L93 Difference]: Finished difference Result 280 states and 387 transitions. [2023-11-21 22:12:50,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-11-21 22:12:50,564 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.6451612903225805) internal successors, (82), 32 states have internal predecessors, (82), 12 states have call successors, (72), 7 states have call predecessors, (72), 7 states have return successors, (72), 12 states have call predecessors, (72), 12 states have call successors, (72) Word has length 147 [2023-11-21 22:12:50,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:12:50,569 INFO L225 Difference]: With dead ends: 280 [2023-11-21 22:12:50,569 INFO L226 Difference]: Without dead ends: 279 [2023-11-21 22:12:50,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 669 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1095, Invalid=2445, Unknown=0, NotChecked=0, Total=3540 [2023-11-21 22:12:50,572 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 170 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 26 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:12:50,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 143 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 408 Invalid, 5 Unknown, 0 Unchecked, 17.9s Time] [2023-11-21 22:12:50,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2023-11-21 22:12:50,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 211. [2023-11-21 22:12:50,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 112 states have (on average 1.0535714285714286) internal successors, (118), 112 states have internal predecessors, (118), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-11-21 22:12:50,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 286 transitions. [2023-11-21 22:12:50,614 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 286 transitions. Word has length 147 [2023-11-21 22:12:50,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:12:50,615 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 286 transitions. [2023-11-21 22:12:50,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.6451612903225805) internal successors, (82), 32 states have internal predecessors, (82), 12 states have call successors, (72), 7 states have call predecessors, (72), 7 states have return successors, (72), 12 states have call predecessors, (72), 12 states have call successors, (72) [2023-11-21 22:12:50,615 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 286 transitions. [2023-11-21 22:12:50,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-21 22:12:50,619 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:12:50,619 INFO L195 NwaCegarLoop]: trace histogram [36, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 1, 1, 1] [2023-11-21 22:12:50,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-21 22:12:50,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-21 22:12:50,842 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 22:12:50,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:50,842 INFO L85 PathProgramCache]: Analyzing trace with hash -550529549, now seen corresponding path program 1 times [2023-11-21 22:12:50,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:50,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141139304] [2023-11-21 22:12:50,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:50,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:50,880 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:12:50,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1389647019] [2023-11-21 22:12:50,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:50,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:12:50,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:12:50,881 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:12:50,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-21 22:12:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:51,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-21 22:12:51,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:12:51,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1489 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 1443 trivial. 0 not checked. [2023-11-21 22:12:51,218 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:12:51,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1489 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 1443 trivial. 0 not checked. [2023-11-21 22:12:51,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:51,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141139304] [2023-11-21 22:12:51,615 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:12:51,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389647019] [2023-11-21 22:12:51,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389647019] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:12:51,616 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:12:51,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 22 [2023-11-21 22:12:51,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660489966] [2023-11-21 22:12:51,616 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:12:51,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-21 22:12:51,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:51,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-21 22:12:51,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-11-21 22:12:51,619 INFO L87 Difference]: Start difference. First operand 211 states and 286 transitions. Second operand has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 1 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-21 22:12:52,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:12:52,203 INFO L93 Difference]: Finished difference Result 350 states and 467 transitions. [2023-11-21 22:12:52,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-21 22:12:52,204 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 1 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 166 [2023-11-21 22:12:52,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:12:52,206 INFO L225 Difference]: With dead ends: 350 [2023-11-21 22:12:52,206 INFO L226 Difference]: Without dead ends: 268 [2023-11-21 22:12:52,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2023-11-21 22:12:52,209 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 91 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:12:52,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 161 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:12:52,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2023-11-21 22:12:52,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 241. [2023-11-21 22:12:52,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 142 states have (on average 1.0845070422535212) internal successors, (154), 142 states have internal predecessors, (154), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-11-21 22:12:52,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 322 transitions. [2023-11-21 22:12:52,241 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 322 transitions. Word has length 166 [2023-11-21 22:12:52,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:12:52,241 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 322 transitions. [2023-11-21 22:12:52,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 1 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-21 22:12:52,242 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 322 transitions. [2023-11-21 22:12:52,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-11-21 22:12:52,245 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:12:52,245 INFO L195 NwaCegarLoop]: trace histogram [36, 11, 11, 11, 10, 10, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1] [2023-11-21 22:12:52,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-21 22:12:52,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-21 22:12:52,467 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 22:12:52,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:52,468 INFO L85 PathProgramCache]: Analyzing trace with hash -2108300397, now seen corresponding path program 2 times [2023-11-21 22:12:52,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:52,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430608399] [2023-11-21 22:12:52,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:52,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:52,504 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:12:52,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [399906426] [2023-11-21 22:12:52,504 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:12:52,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:12:52,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:12:52,506 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:12:52,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-21 22:12:52,666 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 22:12:52,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:12:52,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-21 22:12:52,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:12:53,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1708 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 1443 trivial. 0 not checked. [2023-11-21 22:12:53,285 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:12:54,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1708 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 1443 trivial. 0 not checked. [2023-11-21 22:12:54,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:54,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430608399] [2023-11-21 22:12:54,379 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:12:54,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399906426] [2023-11-21 22:12:54,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399906426] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:12:54,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:12:54,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 24] total 46 [2023-11-21 22:12:54,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303489230] [2023-11-21 22:12:54,380 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:12:54,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-11-21 22:12:54,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:54,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-11-21 22:12:54,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2023-11-21 22:12:54,384 INFO L87 Difference]: Start difference. First operand 241 states and 322 transitions. Second operand has 46 states, 46 states have (on average 2.5652173913043477) internal successors, (118), 46 states have internal predecessors, (118), 1 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-21 22:12:56,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:12:56,231 INFO L93 Difference]: Finished difference Result 446 states and 581 transitions. [2023-11-21 22:12:56,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-11-21 22:12:56,232 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 2.5652173913043477) internal successors, (118), 46 states have internal predecessors, (118), 1 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 196 [2023-11-21 22:12:56,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:12:56,238 INFO L225 Difference]: With dead ends: 446 [2023-11-21 22:12:56,238 INFO L226 Difference]: Without dead ends: 364 [2023-11-21 22:12:56,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1615 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=2529, Invalid=5303, Unknown=0, NotChecked=0, Total=7832 [2023-11-21 22:12:56,246 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 441 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:12:56,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 221 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:12:56,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2023-11-21 22:12:56,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 301. [2023-11-21 22:12:56,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 202 states have (on average 1.118811881188119) internal successors, (226), 202 states have internal predecessors, (226), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-11-21 22:12:56,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 394 transitions. [2023-11-21 22:12:56,292 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 394 transitions. Word has length 196 [2023-11-21 22:12:56,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:12:56,293 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 394 transitions. [2023-11-21 22:12:56,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 2.5652173913043477) internal successors, (118), 46 states have internal predecessors, (118), 1 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-21 22:12:56,294 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 394 transitions. [2023-11-21 22:12:56,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-11-21 22:12:56,301 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:12:56,301 INFO L195 NwaCegarLoop]: trace histogram [36, 23, 23, 23, 22, 22, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1] [2023-11-21 22:12:56,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-21 22:12:56,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:12:56,516 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 22:12:56,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:56,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1784301869, now seen corresponding path program 3 times [2023-11-21 22:12:56,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:56,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865519798] [2023-11-21 22:12:56,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:56,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:56,568 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:12:56,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [546525764] [2023-11-21 22:12:56,568 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-21 22:12:56,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:12:56,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:12:56,570 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:12:56,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-21 22:12:56,663 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-21 22:12:56,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:12:56,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:12:56,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:12:56,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2686 backedges. 418 proven. 0 refuted. 0 times theorem prover too weak. 2268 trivial. 0 not checked. [2023-11-21 22:12:56,770 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:12:56,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:56,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865519798] [2023-11-21 22:12:56,771 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:12:56,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546525764] [2023-11-21 22:12:56,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546525764] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:56,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:56,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:12:56,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007164729] [2023-11-21 22:12:56,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:56,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:12:56,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:56,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:12:56,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:12:56,774 INFO L87 Difference]: Start difference. First operand 301 states and 394 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-21 22:12:56,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:12:56,922 INFO L93 Difference]: Finished difference Result 305 states and 398 transitions. [2023-11-21 22:12:56,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:12:56,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 256 [2023-11-21 22:12:56,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:12:56,924 INFO L225 Difference]: With dead ends: 305 [2023-11-21 22:12:56,925 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 22:12:56,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:12:56,929 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 6 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:12:56,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 47 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:12:56,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 22:12:56,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 22:12:56,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:56,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 22:12:56,931 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 256 [2023-11-21 22:12:56,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:12:56,932 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:12:56,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-21 22:12:56,932 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 22:12:56,932 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 22:12:56,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-21 22:12:56,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-21 22:12:56,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-21 22:12:56,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-21 22:12:56,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-21 22:12:57,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:12:57,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-21 22:12:59,708 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2023-11-21 22:12:59,709 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2023-11-21 22:12:59,709 INFO L895 garLoopResultBuilder]: At program point L52-2(lines 38 56) the Hoare annotation is: (and (<= ~counter~0 2147483641) (<= 0 (+ ~counter~0 2147483647))) [2023-11-21 22:12:59,709 INFO L899 garLoopResultBuilder]: For program point L44(lines 38 56) no Hoare annotation was computed. [2023-11-21 22:12:59,709 INFO L895 garLoopResultBuilder]: At program point L40(line 40) the Hoare annotation is: (and (<= 0 (+ ~counter~0 2147483647)) (<= ~counter~0 100)) [2023-11-21 22:12:59,709 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2023-11-21 22:12:59,709 INFO L902 garLoopResultBuilder]: At program point L57(line 57) the Hoare annotation is: true [2023-11-21 22:12:59,710 INFO L895 garLoopResultBuilder]: At program point L41(line 41) the Hoare annotation is: (and (<= 0 (+ ~counter~0 2147483647)) (<= ~counter~0 100)) [2023-11-21 22:12:59,710 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2023-11-21 22:12:59,710 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-21 22:12:59,710 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2023-11-21 22:12:59,710 INFO L895 garLoopResultBuilder]: At program point L42(line 42) the Hoare annotation is: (and (<= 0 (+ ~counter~0 2147483647)) (<= ~counter~0 100)) [2023-11-21 22:12:59,710 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-21 22:12:59,710 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2023-11-21 22:12:59,710 INFO L899 garLoopResultBuilder]: For program point L38-1(line 38) no Hoare annotation was computed. [2023-11-21 22:12:59,710 INFO L899 garLoopResultBuilder]: For program point L38-2(lines 38 56) no Hoare annotation was computed. [2023-11-21 22:12:59,710 INFO L902 garLoopResultBuilder]: At program point L38-4(lines 38 56) the Hoare annotation is: true [2023-11-21 22:12:59,711 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2023-11-21 22:12:59,711 INFO L899 garLoopResultBuilder]: For program point L30-1(line 30) no Hoare annotation was computed. [2023-11-21 22:12:59,711 INFO L899 garLoopResultBuilder]: For program point L30-2(line 30) no Hoare annotation was computed. [2023-11-21 22:12:59,711 INFO L899 garLoopResultBuilder]: For program point L30-3(lines 30 35) no Hoare annotation was computed. [2023-11-21 22:12:59,711 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2023-11-21 22:12:59,711 INFO L895 garLoopResultBuilder]: At program point L30-5(lines 30 35) the Hoare annotation is: (and (<= 0 (+ ~counter~0 2147483647)) (<= ~counter~0 100)) [2023-11-21 22:12:59,711 INFO L895 garLoopResultBuilder]: At program point L43(line 43) the Hoare annotation is: (and (<= 0 (+ ~counter~0 2147483647)) (<= ~counter~0 100)) [2023-11-21 22:12:59,711 INFO L895 garLoopResultBuilder]: At program point L39(line 39) the Hoare annotation is: (and (<= 0 (+ ~counter~0 2147483647)) (<= ~counter~0 100)) [2023-11-21 22:12:59,712 INFO L895 garLoopResultBuilder]: At program point L39-1(line 39) the Hoare annotation is: (and (<= 0 (+ ~counter~0 2147483647)) (<= ~counter~0 100)) [2023-11-21 22:12:59,712 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 11 17) no Hoare annotation was computed. [2023-11-21 22:12:59,712 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 17) the Hoare annotation is: true [2023-11-21 22:12:59,717 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:59,721 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:12:59,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:12:59 BoogieIcfgContainer [2023-11-21 22:12:59,734 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:12:59,735 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:12:59,735 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:12:59,736 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:12:59,736 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:12:10" (3/4) ... [2023-11-21 22:12:59,738 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 22:12:59,742 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-21 22:12:59,749 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-21 22:12:59,750 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-21 22:12:59,750 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 22:12:59,750 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 22:12:59,869 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:12:59,871 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/witness.yml [2023-11-21 22:12:59,872 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:12:59,872 INFO L158 Benchmark]: Toolchain (without parser) took 50239.12ms. Allocated memory was 172.0MB in the beginning and 209.7MB in the end (delta: 37.7MB). Free memory was 125.9MB in the beginning and 88.4MB in the end (delta: 37.5MB). Peak memory consumption was 75.8MB. Max. memory is 16.1GB. [2023-11-21 22:12:59,873 INFO L158 Benchmark]: CDTParser took 1.43ms. Allocated memory is still 123.7MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:12:59,874 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.48ms. Allocated memory is still 172.0MB. Free memory was 125.4MB in the beginning and 113.9MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:12:59,874 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.65ms. Allocated memory is still 172.0MB. Free memory was 113.9MB in the beginning and 112.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:12:59,875 INFO L158 Benchmark]: Boogie Preprocessor took 47.35ms. Allocated memory is still 172.0MB. Free memory was 112.3MB in the beginning and 110.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:12:59,875 INFO L158 Benchmark]: RCFGBuilder took 641.86ms. Allocated memory is still 172.0MB. Free memory was 110.2MB in the beginning and 136.3MB in the end (delta: -26.1MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2023-11-21 22:12:59,875 INFO L158 Benchmark]: TraceAbstraction took 49034.72ms. Allocated memory was 172.0MB in the beginning and 209.7MB in the end (delta: 37.7MB). Free memory was 136.3MB in the beginning and 93.7MB in the end (delta: 42.6MB). Peak memory consumption was 125.4MB. Max. memory is 16.1GB. [2023-11-21 22:12:59,876 INFO L158 Benchmark]: Witness Printer took 136.57ms. Allocated memory is still 209.7MB. Free memory was 93.7MB in the beginning and 88.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:12:59,882 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.43ms. Allocated memory is still 123.7MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.48ms. Allocated memory is still 172.0MB. Free memory was 125.4MB in the beginning and 113.9MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.65ms. Allocated memory is still 172.0MB. Free memory was 113.9MB in the beginning and 112.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.35ms. Allocated memory is still 172.0MB. Free memory was 112.3MB in the beginning and 110.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 641.86ms. Allocated memory is still 172.0MB. Free memory was 110.2MB in the beginning and 136.3MB in the end (delta: -26.1MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * TraceAbstraction took 49034.72ms. Allocated memory was 172.0MB in the beginning and 209.7MB in the end (delta: 37.7MB). Free memory was 136.3MB in the beginning and 93.7MB in the end (delta: 42.6MB). Peak memory consumption was 125.4MB. Max. memory is 16.1GB. * Witness Printer took 136.57ms. Allocated memory is still 209.7MB. Free memory was 93.7MB in the beginning and 88.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 28 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 49.0s, OverallIterations: 13, TraceHistogramMax: 36, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 35.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 mSolverCounterUnknown, 1001 SdHoareTripleChecker+Valid, 31.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1001 mSDsluCounter, 1370 SdHoareTripleChecker+Invalid, 31.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1125 mSDsCounter, 96 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1587 IncrementalHoareTripleChecker+Invalid, 1693 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 96 mSolverCounterUnsat, 245 mSDtfsCounter, 1587 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1649 GetRequests, 1327 SyntacticMatches, 0 SemanticMatches, 322 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3139 ImplicationChecksByTransitivity, 6.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=301occurred in iteration=12, InterpolantAutomatonStates: 248, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 243 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 185 PreInvPairs, 310 NumberOfFragments, 76 HoareAnnotationTreeSize, 185 FomulaSimplifications, 48819 FormulaSimplificationTreeSizeReduction, 2.2s HoareSimplificationTime, 12 FomulaSimplificationsInter, 1025 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 962 NumberOfCodeBlocks, 727 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1538 ConstructedInterpolants, 0 QuantifiedInterpolants, 2848 SizeOfPredicates, 66 NumberOfNonLiveVariables, 1878 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 24 InterpolantComputations, 7 PerfectInterpolantSequences, 10119/12341 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 4 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((0 <= (counter + 2147483647)) && (counter <= 100)) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: ((counter <= 2147483641) && (0 <= (counter + 2147483647))) RESULT: Ultimate proved your program to be correct! [2023-11-21 22:12:59,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff4570f-ba42-458b-8758-15ee66aef8b3/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE