./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark34_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark34_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya --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 0414607cdfaf86248673acc731020b311087823754eb03e229e19e48245fa120 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:34:35,609 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:34:35,671 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-28 20:34:35,675 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:34:35,675 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:34:35,697 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:34:35,697 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:34:35,698 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:34:35,698 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:34:35,699 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:34:35,699 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:34:35,700 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:34:35,701 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:34:35,701 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:34:35,702 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:34:35,702 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:34:35,703 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:34:35,703 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:34:35,704 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:34:35,704 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:34:35,704 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:34:35,705 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:34:35,706 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:34:35,706 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:34:35,706 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-28 20:34:35,707 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 20:34:35,707 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:34:35,708 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:34:35,708 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:34:35,708 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:34:35,709 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:34:35,709 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:34:35,709 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:34:35,710 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:34:35,710 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:34:35,710 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:34:35,711 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 20:34:35,711 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:34:35,711 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 20:34:35,711 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:34:35,711 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:34:35,712 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 20:34:35,712 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:34:35,712 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:34:35,712 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_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0414607cdfaf86248673acc731020b311087823754eb03e229e19e48245fa120 [2023-11-28 20:34:35,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:34:35,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:34:35,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:34:35,959 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:34:35,960 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:34:35,961 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/loop-zilu/benchmark34_conjunctive.i [2023-11-28 20:34:38,698 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:34:38,871 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:34:38,872 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/sv-benchmarks/c/loop-zilu/benchmark34_conjunctive.i [2023-11-28 20:34:38,879 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/data/05abdd846/34581781cfc64826b34a1a9997b8c866/FLAGf0c19ee75 [2023-11-28 20:34:38,891 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/data/05abdd846/34581781cfc64826b34a1a9997b8c866 [2023-11-28 20:34:38,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:34:38,894 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:34:38,895 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:34:38,896 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:34:38,901 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:34:38,901 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:34:38" (1/1) ... [2023-11-28 20:34:38,903 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72d11d26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:34:38, skipping insertion in model container [2023-11-28 20:34:38,903 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:34:38" (1/1) ... [2023-11-28 20:34:38,924 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:34:39,082 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:34:39,092 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:34:39,105 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:34:39,119 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:34:39,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:34:39 WrapperNode [2023-11-28 20:34:39,120 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:34:39,121 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:34:39,121 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:34:39,121 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:34:39,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:34:39" (1/1) ... [2023-11-28 20:34:39,135 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:34:39" (1/1) ... [2023-11-28 20:34:39,152 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 46 [2023-11-28 20:34:39,152 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:34:39,153 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:34:39,153 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:34:39,153 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:34:39,164 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:34:39" (1/1) ... [2023-11-28 20:34:39,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:34:39" (1/1) ... [2023-11-28 20:34:39,165 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:34:39" (1/1) ... [2023-11-28 20:34:39,177 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-28 20:34:39,177 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:34:39" (1/1) ... [2023-11-28 20:34:39,178 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:34:39" (1/1) ... [2023-11-28 20:34:39,181 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:34:39" (1/1) ... [2023-11-28 20:34:39,184 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:34:39" (1/1) ... [2023-11-28 20:34:39,185 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:34:39" (1/1) ... [2023-11-28 20:34:39,186 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:34:39" (1/1) ... [2023-11-28 20:34:39,187 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:34:39,188 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:34:39,188 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:34:39,188 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:34:39,189 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:34:39" (1/1) ... [2023-11-28 20:34:39,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:34:39,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:34:39,218 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:34:39,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:34:39,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:34:39,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 20:34:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:34:39,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:34:39,321 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:34:39,324 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:34:39,450 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:34:39,472 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:34:39,472 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-28 20:34:39,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:34:39 BoogieIcfgContainer [2023-11-28 20:34:39,473 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:34:39,476 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:34:39,476 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:34:39,479 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:34:39,479 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:34:38" (1/3) ... [2023-11-28 20:34:39,480 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a435ea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:34:39, skipping insertion in model container [2023-11-28 20:34:39,480 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:34:39" (2/3) ... [2023-11-28 20:34:39,481 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a435ea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:34:39, skipping insertion in model container [2023-11-28 20:34:39,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:34:39" (3/3) ... [2023-11-28 20:34:39,482 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark34_conjunctive.i [2023-11-28 20:34:39,501 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:34:39,502 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-28 20:34:39,549 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:34:39,557 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;@4a35ae77, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:34:39,557 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-28 20:34:39,561 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 17 states have internal predecessors, (22), 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) [2023-11-28 20:34:39,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-28 20:34:39,567 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:34:39,567 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-28 20:34:39,568 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)] === [2023-11-28 20:34:39,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:34:39,574 INFO L85 PathProgramCache]: Analyzing trace with hash 2301147, now seen corresponding path program 1 times [2023-11-28 20:34:39,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:34:39,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047301047] [2023-11-28 20:34:39,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:34:39,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:34:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:34:39,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:34:39,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:34:39,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047301047] [2023-11-28 20:34:39,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047301047] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:34:39,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:34:39,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:34:39,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145364925] [2023-11-28 20:34:39,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:34:39,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:34:39,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:34:39,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:34:39,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:34:39,809 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 17 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:34:39,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:34:39,866 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2023-11-28 20:34:39,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:34:39,868 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-28 20:34:39,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:34:39,876 INFO L225 Difference]: With dead ends: 25 [2023-11-28 20:34:39,876 INFO L226 Difference]: Without dead ends: 10 [2023-11-28 20:34:39,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:34:39,883 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 14 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:34:39,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 20 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:34:39,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-11-28 20:34:39,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-11-28 20:34:39,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 9 states have internal predecessors, (10), 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) [2023-11-28 20:34:39,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2023-11-28 20:34:39,916 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 4 [2023-11-28 20:34:39,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:34:39,916 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2023-11-28 20:34:39,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:34:39,917 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2023-11-28 20:34:39,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-28 20:34:39,917 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:34:39,918 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-28 20:34:39,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 20:34:39,918 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-28 20:34:39,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:34:39,919 INFO L85 PathProgramCache]: Analyzing trace with hash 71335607, now seen corresponding path program 1 times [2023-11-28 20:34:39,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:34:39,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664011266] [2023-11-28 20:34:39,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:34:39,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:34:39,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:34:39,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:34:39,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:34:39,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664011266] [2023-11-28 20:34:39,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664011266] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:34:39,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:34:39,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:34:39,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206729089] [2023-11-28 20:34:39,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:34:39,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:34:39,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:34:39,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:34:39,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:34:39,998 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:34:40,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:34:40,024 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-11-28 20:34:40,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:34:40,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-28 20:34:40,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:34:40,025 INFO L225 Difference]: With dead ends: 14 [2023-11-28 20:34:40,025 INFO L226 Difference]: Without dead ends: 13 [2023-11-28 20:34:40,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:34:40,027 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:34:40,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 17 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:34:40,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-11-28 20:34:40,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-11-28 20:34:40,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.3) internal successors, (13), 12 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) [2023-11-28 20:34:40,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-11-28 20:34:40,033 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 5 [2023-11-28 20:34:40,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:34:40,033 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2023-11-28 20:34:40,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:34:40,034 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-11-28 20:34:40,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-28 20:34:40,034 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:34:40,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-28 20:34:40,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-28 20:34:40,035 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-28 20:34:40,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:34:40,036 INFO L85 PathProgramCache]: Analyzing trace with hash -2083563427, now seen corresponding path program 1 times [2023-11-28 20:34:40,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:34:40,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292748839] [2023-11-28 20:34:40,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:34:40,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:34:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:34:40,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:34:40,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:34:40,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292748839] [2023-11-28 20:34:40,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292748839] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:34:40,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:34:40,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:34:40,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974291833] [2023-11-28 20:34:40,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:34:40,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:34:40,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:34:40,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:34:40,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:34:40,101 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:34:40,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:34:40,128 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2023-11-28 20:34:40,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:34:40,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-28 20:34:40,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:34:40,130 INFO L225 Difference]: With dead ends: 17 [2023-11-28 20:34:40,130 INFO L226 Difference]: Without dead ends: 16 [2023-11-28 20:34:40,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:34:40,132 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:34:40,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 15 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:34:40,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-11-28 20:34:40,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2023-11-28 20:34:40,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:34:40,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-11-28 20:34:40,137 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 6 [2023-11-28 20:34:40,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:34:40,137 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-11-28 20:34:40,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:34:40,138 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-11-28 20:34:40,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-28 20:34:40,138 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:34:40,139 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:34:40,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-28 20:34:40,139 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)] === [2023-11-28 20:34:40,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:34:40,140 INFO L85 PathProgramCache]: Analyzing trace with hash -165956743, now seen corresponding path program 1 times [2023-11-28 20:34:40,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:34:40,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504811669] [2023-11-28 20:34:40,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:34:40,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:34:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:34:40,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:34:40,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:34:40,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504811669] [2023-11-28 20:34:40,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504811669] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:34:40,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:34:40,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:34:40,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895980864] [2023-11-28 20:34:40,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:34:40,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:34:40,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:34:40,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:34:40,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:34:40,195 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:34:40,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:34:40,216 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-11-28 20:34:40,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:34:40,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-28 20:34:40,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:34:40,217 INFO L225 Difference]: With dead ends: 14 [2023-11-28 20:34:40,218 INFO L226 Difference]: Without dead ends: 13 [2023-11-28 20:34:40,218 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 [2023-11-28 20:34:40,219 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:34:40,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 6 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:34:40,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-11-28 20:34:40,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-11-28 20:34:40,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 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) [2023-11-28 20:34:40,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-11-28 20:34:40,224 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2023-11-28 20:34:40,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:34:40,224 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2023-11-28 20:34:40,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:34:40,225 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-11-28 20:34:40,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-28 20:34:40,225 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:34:40,225 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2023-11-28 20:34:40,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-28 20:34:40,226 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)] === [2023-11-28 20:34:40,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:34:40,227 INFO L85 PathProgramCache]: Analyzing trace with hash -509927273, now seen corresponding path program 1 times [2023-11-28 20:34:40,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:34:40,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838425128] [2023-11-28 20:34:40,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:34:40,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:34:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:34:40,307 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:34:40,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:34:40,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838425128] [2023-11-28 20:34:40,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838425128] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:34:40,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103267350] [2023-11-28 20:34:40,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:34:40,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:34:40,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:34:40,313 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:34:40,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-28 20:34:40,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:34:40,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 20:34:40,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:34:40,412 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:34:40,413 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:34:40,466 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:34:40,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103267350] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:34:40,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:34:40,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-11-28 20:34:40,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562746458] [2023-11-28 20:34:40,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:34:40,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 20:34:40,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:34:40,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 20:34:40,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:34:40,469 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 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) [2023-11-28 20:34:40,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:34:40,542 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2023-11-28 20:34:40,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-28 20:34:40,543 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 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 10 [2023-11-28 20:34:40,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:34:40,544 INFO L225 Difference]: With dead ends: 30 [2023-11-28 20:34:40,544 INFO L226 Difference]: Without dead ends: 29 [2023-11-28 20:34:40,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-11-28 20:34:40,546 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 14 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:34:40,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 32 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:34:40,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-28 20:34:40,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2023-11-28 20:34:40,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.16) internal successors, (29), 26 states have internal predecessors, (29), 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) [2023-11-28 20:34:40,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2023-11-28 20:34:40,553 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 10 [2023-11-28 20:34:40,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:34:40,553 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2023-11-28 20:34:40,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 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) [2023-11-28 20:34:40,554 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2023-11-28 20:34:40,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-28 20:34:40,554 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:34:40,554 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2023-11-28 20:34:40,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-28 20:34:40,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:34:40,755 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)] === [2023-11-28 20:34:40,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:34:40,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1372123773, now seen corresponding path program 1 times [2023-11-28 20:34:40,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:34:40,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204734780] [2023-11-28 20:34:40,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:34:40,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:34:40,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:34:40,833 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:34:40,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:34:40,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204734780] [2023-11-28 20:34:40,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204734780] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:34:40,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736039737] [2023-11-28 20:34:40,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:34:40,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:34:40,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:34:40,835 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:34:40,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-28 20:34:40,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:34:40,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-28 20:34:40,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:34:40,974 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:34:40,974 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:34:41,143 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:34:41,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736039737] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:34:41,144 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:34:41,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2023-11-28 20:34:41,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102494367] [2023-11-28 20:34:41,145 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:34:41,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-28 20:34:41,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:34:41,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-28 20:34:41,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-11-28 20:34:41,146 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 16 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 16 states have internal predecessors, (29), 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) [2023-11-28 20:34:41,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:34:41,409 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2023-11-28 20:34:41,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-28 20:34:41,410 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 16 states have internal predecessors, (29), 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 11 [2023-11-28 20:34:41,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:34:41,410 INFO L225 Difference]: With dead ends: 36 [2023-11-28 20:34:41,410 INFO L226 Difference]: Without dead ends: 35 [2023-11-28 20:34:41,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2023-11-28 20:34:41,412 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 27 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:34:41,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 32 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:34:41,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-28 20:34:41,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2023-11-28 20:34:41,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 31 states have (on average 1.096774193548387) internal successors, (34), 32 states have internal predecessors, (34), 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) [2023-11-28 20:34:41,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2023-11-28 20:34:41,419 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 11 [2023-11-28 20:34:41,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:34:41,419 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2023-11-28 20:34:41,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 16 states have internal predecessors, (29), 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) [2023-11-28 20:34:41,420 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2023-11-28 20:34:41,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-28 20:34:41,421 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:34:41,421 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1] [2023-11-28 20:34:41,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-28 20:34:41,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-28 20:34:41,626 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-28 20:34:41,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:34:41,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1209149769, now seen corresponding path program 2 times [2023-11-28 20:34:41,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:34:41,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228213995] [2023-11-28 20:34:41,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:34:41,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:34:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:34:41,790 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:34:41,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:34:41,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228213995] [2023-11-28 20:34:41,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228213995] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:34:41,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343741115] [2023-11-28 20:34:41,791 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:34:41,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:34:41,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:34:41,793 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:34:41,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-28 20:34:41,835 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-28 20:34:41,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:34:41,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 20:34:41,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:34:41,907 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-28 20:34:41,907 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:34:41,964 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-28 20:34:41,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343741115] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:34:41,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:34:41,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 14 [2023-11-28 20:34:41,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560399456] [2023-11-28 20:34:41,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:34:41,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-28 20:34:41,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:34:41,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-28 20:34:41,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2023-11-28 20:34:41,966 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 15 states, 14 states have (on average 2.5) internal successors, (35), 15 states have internal predecessors, (35), 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) [2023-11-28 20:34:42,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:34:42,149 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2023-11-28 20:34:42,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-28 20:34:42,150 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.5) internal successors, (35), 15 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-11-28 20:34:42,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:34:42,151 INFO L225 Difference]: With dead ends: 33 [2023-11-28 20:34:42,151 INFO L226 Difference]: Without dead ends: 32 [2023-11-28 20:34:42,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 45 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=202, Invalid=500, Unknown=0, NotChecked=0, Total=702 [2023-11-28 20:34:42,152 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 42 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:34:42,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 25 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:34:42,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-28 20:34:42,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-28 20:34:42,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.032258064516129) internal successors, (32), 31 states have internal predecessors, (32), 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) [2023-11-28 20:34:42,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2023-11-28 20:34:42,157 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 25 [2023-11-28 20:34:42,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:34:42,157 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2023-11-28 20:34:42,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.5) internal successors, (35), 15 states have internal predecessors, (35), 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) [2023-11-28 20:34:42,158 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2023-11-28 20:34:42,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-28 20:34:42,158 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:34:42,159 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 1, 1, 1] [2023-11-28 20:34:42,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-28 20:34:42,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:34:42,359 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-28 20:34:42,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:34:42,360 INFO L85 PathProgramCache]: Analyzing trace with hash -199996803, now seen corresponding path program 2 times [2023-11-28 20:34:42,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:34:42,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581370720] [2023-11-28 20:34:42,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:34:42,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:34:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:34:42,545 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:34:42,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:34:42,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581370720] [2023-11-28 20:34:42,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581370720] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:34:42,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095408780] [2023-11-28 20:34:42,546 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:34:42,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:34:42,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:34:42,547 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:34:42,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-28 20:34:42,598 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:34:42,598 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:34:42,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-28 20:34:42,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:34:43,050 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:34:43,051 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:34:43,863 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:34:43,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095408780] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:34:43,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:34:43,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 19, 19] total 47 [2023-11-28 20:34:43,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765644634] [2023-11-28 20:34:43,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:34:43,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-11-28 20:34:43,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:34:43,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-11-28 20:34:43,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=1938, Unknown=0, NotChecked=0, Total=2256 [2023-11-28 20:34:43,867 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand has 48 states, 47 states have (on average 1.8936170212765957) internal successors, (89), 48 states have internal predecessors, (89), 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) [2023-11-28 20:34:45,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:34:45,614 INFO L93 Difference]: Finished difference Result 94 states and 105 transitions. [2023-11-28 20:34:45,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-28 20:34:45,615 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 1.8936170212765957) internal successors, (89), 48 states have internal predecessors, (89), 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 31 [2023-11-28 20:34:45,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:34:45,616 INFO L225 Difference]: With dead ends: 94 [2023-11-28 20:34:45,616 INFO L226 Difference]: Without dead ends: 93 [2023-11-28 20:34:45,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1285 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1511, Invalid=5799, Unknown=0, NotChecked=0, Total=7310 [2023-11-28 20:34:45,619 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 170 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 20:34:45,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 43 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 20:34:45,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-28 20:34:45,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 92. [2023-11-28 20:34:45,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.010989010989011) internal successors, (92), 91 states have internal predecessors, (92), 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) [2023-11-28 20:34:45,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 92 transitions. [2023-11-28 20:34:45,632 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 92 transitions. Word has length 31 [2023-11-28 20:34:45,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:34:45,632 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 92 transitions. [2023-11-28 20:34:45,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 1.8936170212765957) internal successors, (89), 48 states have internal predecessors, (89), 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) [2023-11-28 20:34:45,633 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 92 transitions. [2023-11-28 20:34:45,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-28 20:34:45,641 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:34:45,641 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 17, 17, 1, 1, 1] [2023-11-28 20:34:45,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-28 20:34:45,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-28 20:34:45,845 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-28 20:34:45,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:34:45,846 INFO L85 PathProgramCache]: Analyzing trace with hash 2018398845, now seen corresponding path program 3 times [2023-11-28 20:34:45,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:34:45,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611781018] [2023-11-28 20:34:45,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:34:45,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:34:45,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:34:46,734 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 748 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:34:46,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:34:46,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611781018] [2023-11-28 20:34:46,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611781018] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:34:46,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888605669] [2023-11-28 20:34:46,734 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 20:34:46,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:34:46,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:34:46,735 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:34:46,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-28 20:34:46,826 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2023-11-28 20:34:46,826 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:34:46,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 45 conjunts are in the unsatisfiable core [2023-11-28 20:34:46,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:34:47,254 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 748 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:34:47,254 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:34:48,939 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 748 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:34:48,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888605669] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:34:48,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:34:48,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 41, 41] total 87 [2023-11-28 20:34:48,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212976410] [2023-11-28 20:34:48,939 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:34:48,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2023-11-28 20:34:48,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:34:48,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2023-11-28 20:34:48,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1444, Invalid=6212, Unknown=0, NotChecked=0, Total=7656 [2023-11-28 20:34:48,946 INFO L87 Difference]: Start difference. First operand 92 states and 92 transitions. Second operand has 88 states, 87 states have (on average 2.2873563218390807) internal successors, (199), 88 states have internal predecessors, (199), 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) [2023-11-28 20:34:51,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:34:51,086 INFO L93 Difference]: Finished difference Result 204 states and 225 transitions. [2023-11-28 20:34:51,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2023-11-28 20:34:51,087 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 87 states have (on average 2.2873563218390807) internal successors, (199), 88 states have internal predecessors, (199), 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 91 [2023-11-28 20:34:51,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:34:51,088 INFO L225 Difference]: With dead ends: 204 [2023-11-28 20:34:51,088 INFO L226 Difference]: Without dead ends: 203 [2023-11-28 20:34:51,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4122 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=4686, Invalid=15054, Unknown=0, NotChecked=0, Total=19740 [2023-11-28 20:34:51,094 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 284 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:34:51,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 98 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:34:51,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-11-28 20:34:51,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 202. [2023-11-28 20:34:51,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 201 states have (on average 1.0049751243781095) internal successors, (202), 201 states have internal predecessors, (202), 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) [2023-11-28 20:34:51,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 202 transitions. [2023-11-28 20:34:51,114 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 202 transitions. Word has length 91 [2023-11-28 20:34:51,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:34:51,114 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 202 transitions. [2023-11-28 20:34:51,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 87 states have (on average 2.2873563218390807) internal successors, (199), 88 states have internal predecessors, (199), 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) [2023-11-28 20:34:51,115 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 202 transitions. [2023-11-28 20:34:51,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-11-28 20:34:51,118 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:34:51,118 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 39, 39, 1, 1, 1] [2023-11-28 20:34:51,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-28 20:34:51,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:34:51,319 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-28 20:34:51,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:34:51,319 INFO L85 PathProgramCache]: Analyzing trace with hash -987089283, now seen corresponding path program 4 times [2023-11-28 20:34:51,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:34:51,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764897561] [2023-11-28 20:34:51,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:34:51,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:34:51,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:34:54,688 INFO L134 CoverageAnalysis]: Checked inductivity of 3861 backedges. 0 proven. 3861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:34:54,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:34:54,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764897561] [2023-11-28 20:34:54,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764897561] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:34:54,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352628829] [2023-11-28 20:34:54,688 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-28 20:34:54,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:34:54,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:34:54,689 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:34:54,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-28 20:34:54,809 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-28 20:34:54,809 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:34:54,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 161 conjunts are in the unsatisfiable core [2023-11-28 20:34:54,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:35:05,242 INFO L134 CoverageAnalysis]: Checked inductivity of 3861 backedges. 0 proven. 3861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:05,242 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:35:27,571 INFO L134 CoverageAnalysis]: Checked inductivity of 3861 backedges. 0 proven. 3861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:27,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352628829] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:35:27,571 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:35:27,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 121, 121] total 319 [2023-11-28 20:35:27,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235102011] [2023-11-28 20:35:27,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:35:27,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 320 states [2023-11-28 20:35:27,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:35:27,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 320 interpolants. [2023-11-28 20:35:27,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11640, Invalid=90440, Unknown=0, NotChecked=0, Total=102080 [2023-11-28 20:35:27,591 INFO L87 Difference]: Start difference. First operand 202 states and 202 transitions. Second operand has 320 states, 319 states have (on average 1.8777429467084639) internal successors, (599), 320 states have internal predecessors, (599), 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) [2023-11-28 20:38:01,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:38:01,364 INFO L93 Difference]: Finished difference Result 604 states and 683 transitions. [2023-11-28 20:38:01,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 320 states. [2023-11-28 20:38:01,365 INFO L78 Accepts]: Start accepts. Automaton has has 320 states, 319 states have (on average 1.8777429467084639) internal successors, (599), 320 states have internal predecessors, (599), 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 201 [2023-11-28 20:38:01,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:38:01,369 INFO L225 Difference]: With dead ends: 604 [2023-11-28 20:38:01,370 INFO L226 Difference]: Without dead ends: 603 [2023-11-28 20:38:01,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 757 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 594 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71648 ImplicationChecksByTransitivity, 174.5s TimeCoverageRelationStatistics Valid=66570, Invalid=288050, Unknown=0, NotChecked=0, Total=354620 [2023-11-28 20:38:01,390 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 4195 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 24160 mSolverCounterSat, 978 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4195 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 25138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 978 IncrementalHoareTripleChecker+Valid, 24160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:38:01,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4195 Valid, 248 Invalid, 25138 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [978 Valid, 24160 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2023-11-28 20:38:01,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2023-11-28 20:38:01,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 602. [2023-11-28 20:38:01,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 601 states have (on average 1.0016638935108153) internal successors, (602), 601 states have internal predecessors, (602), 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) [2023-11-28 20:38:01,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 602 transitions. [2023-11-28 20:38:01,459 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 602 transitions. Word has length 201 [2023-11-28 20:38:01,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:38:01,459 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 602 transitions. [2023-11-28 20:38:01,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 320 states, 319 states have (on average 1.8777429467084639) internal successors, (599), 320 states have internal predecessors, (599), 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) [2023-11-28 20:38:01,460 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 602 transitions. [2023-11-28 20:38:01,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2023-11-28 20:38:01,473 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:38:01,473 INFO L195 NwaCegarLoop]: trace histogram [120, 120, 120, 119, 119, 1, 1, 1] [2023-11-28 20:38:01,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-28 20:38:01,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-28 20:38:01,674 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-28 20:38:01,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:38:01,675 INFO L85 PathProgramCache]: Analyzing trace with hash 142415485, now seen corresponding path program 5 times [2023-11-28 20:38:01,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:38:01,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142410258] [2023-11-28 20:38:01,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:38:01,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:38:02,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:38:29,197 INFO L134 CoverageAnalysis]: Checked inductivity of 35581 backedges. 0 proven. 35581 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:38:29,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:38:29,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142410258] [2023-11-28 20:38:29,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142410258] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:38:29,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140027296] [2023-11-28 20:38:29,198 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-28 20:38:29,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:38:29,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:38:29,199 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:38:29,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5599fd1e-2527-41c0-9a59-33677cca10d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-28 20:38:30,116 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 120 check-sat command(s) [2023-11-28 20:38:30,116 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:38:30,141 INFO L262 TraceCheckSpWp]: Trace formula consists of 1705 conjuncts, 481 conjunts are in the unsatisfiable core [2023-11-28 20:38:30,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:39:56,717 INFO L134 CoverageAnalysis]: Checked inductivity of 35581 backedges. 0 proven. 35581 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:56,717 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:43:15,705 INFO L134 CoverageAnalysis]: Checked inductivity of 35581 backedges. 0 proven. 35581 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:43:15,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140027296] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:43:15,706 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:43:15,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [241, 361, 361] total 959 [2023-11-28 20:43:15,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362975276] [2023-11-28 20:43:15,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:43:15,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 960 states [2023-11-28 20:43:15,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:43:15,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 960 interpolants. [2023-11-28 20:43:15,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102120, Invalid=818520, Unknown=0, NotChecked=0, Total=920640 [2023-11-28 20:43:15,773 INFO L87 Difference]: Start difference. First operand 602 states and 602 transitions. Second operand has 960 states, 959 states have (on average 1.8759124087591241) internal successors, (1799), 960 states have internal predecessors, (1799), 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) [2023-11-28 20:48:07,792 WARN L293 SmtUtils]: Spent 7.20s on a formula simplification. DAG size of input: 1199 DAG size of output: 1197 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)