./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark01_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_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark01_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme --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 1b503f9744330c40db60063d7713649b00b515fae7df517a0a6da071e866822e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:49:46,497 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:49:46,601 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 10:49:46,607 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:49:46,608 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:49:46,658 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:49:46,663 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:49:46,663 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:49:46,664 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:49:46,669 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:49:46,670 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:49:46,671 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:49:46,672 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:49:46,673 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:49:46,674 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:49:46,674 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:49:46,675 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:49:46,675 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:49:46,676 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:49:46,676 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:49:46,677 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:49:46,677 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:49:46,678 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:49:46,678 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:49:46,678 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 10:49:46,679 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:49:46,679 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:49:46,680 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:49:46,680 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:49:46,681 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:49:46,682 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:49:46,682 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:49:46,683 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:49:46,683 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:49:46,683 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:49:46,683 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:49:46,684 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:49:46,684 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:49:46,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:49:46,684 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:49:46,684 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:49:46,685 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:49:46,685 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:49:46,685 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:49:46,686 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_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b503f9744330c40db60063d7713649b00b515fae7df517a0a6da071e866822e [2023-11-26 10:49:47,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:49:47,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:49:47,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:49:47,063 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:49:47,064 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:49:47,065 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/loop-zilu/benchmark01_conjunctive.i [2023-11-26 10:49:50,378 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:49:50,655 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:49:50,656 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/sv-benchmarks/c/loop-zilu/benchmark01_conjunctive.i [2023-11-26 10:49:50,665 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/data/ca162d5bc/01e3238686a04ba1a55d5218b6dffd82/FLAGbffe8cea8 [2023-11-26 10:49:50,681 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/data/ca162d5bc/01e3238686a04ba1a55d5218b6dffd82 [2023-11-26 10:49:50,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:49:50,686 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:49:50,687 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:49:50,688 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:49:50,694 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:49:50,695 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:49:50" (1/1) ... [2023-11-26 10:49:50,696 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76cf3b41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:50, skipping insertion in model container [2023-11-26 10:49:50,697 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:49:50" (1/1) ... [2023-11-26 10:49:50,721 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:49:50,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:49:50,901 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:49:50,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:49:50,931 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:49:50,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:50 WrapperNode [2023-11-26 10:49:50,931 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:49:50,933 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:49:50,933 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:49:50,933 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:49:50,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:50" (1/1) ... [2023-11-26 10:49:50,948 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:50" (1/1) ... [2023-11-26 10:49:50,969 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 39 [2023-11-26 10:49:50,970 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:49:50,970 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:49:50,971 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:49:50,971 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:49:50,982 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:50" (1/1) ... [2023-11-26 10:49:50,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:50" (1/1) ... [2023-11-26 10:49:50,983 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:50" (1/1) ... [2023-11-26 10:49:50,993 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]. [2023-11-26 10:49:50,996 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:50" (1/1) ... [2023-11-26 10:49:50,997 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:50" (1/1) ... [2023-11-26 10:49:51,000 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:50" (1/1) ... [2023-11-26 10:49:51,004 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:50" (1/1) ... [2023-11-26 10:49:51,005 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:50" (1/1) ... [2023-11-26 10:49:51,006 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:50" (1/1) ... [2023-11-26 10:49:51,008 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:49:51,009 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:49:51,009 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:49:51,009 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:49:51,010 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:50" (1/1) ... [2023-11-26 10:49:51,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:49:51,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:49:51,047 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:49:51,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:49:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:49:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:49:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:49:51,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:49:51,172 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:49:51,174 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:49:51,306 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:49:51,328 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:49:51,329 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:49:51,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:49:51 BoogieIcfgContainer [2023-11-26 10:49:51,330 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:49:51,332 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:49:51,332 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:49:51,336 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:49:51,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:49:50" (1/3) ... [2023-11-26 10:49:51,337 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5064a321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:49:51, skipping insertion in model container [2023-11-26 10:49:51,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:50" (2/3) ... [2023-11-26 10:49:51,337 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5064a321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:49:51, skipping insertion in model container [2023-11-26 10:49:51,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:49:51" (3/3) ... [2023-11-26 10:49:51,339 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark01_conjunctive.i [2023-11-26 10:49:51,353 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:49:51,353 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 10:49:51,395 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:49:51,401 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;@48a94824, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:49:51,402 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-26 10:49:51,405 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 14 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) [2023-11-26 10:49:51,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-26 10:49:51,411 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:51,411 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-26 10:49:51,412 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 10:49:51,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:51,417 INFO L85 PathProgramCache]: Analyzing trace with hash 68561168, now seen corresponding path program 1 times [2023-11-26 10:49:51,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:51,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811582831] [2023-11-26 10:49:51,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:51,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:51,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:51,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:51,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:51,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811582831] [2023-11-26 10:49:51,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811582831] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:51,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:51,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:51,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795126835] [2023-11-26 10:49:51,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:51,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:51,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:51,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:51,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:51,636 INFO L87 Difference]: Start difference. First operand has 15 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 14 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:51,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:51,689 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2023-11-26 10:49:51,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:51,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-26 10:49:51,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:51,701 INFO L225 Difference]: With dead ends: 22 [2023-11-26 10:49:51,701 INFO L226 Difference]: Without dead ends: 7 [2023-11-26 10:49:51,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:51,708 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:51,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 8 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:49:51,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2023-11-26 10:49:51,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2023-11-26 10:49:51,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 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) [2023-11-26 10:49:51,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2023-11-26 10:49:51,736 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2023-11-26 10:49:51,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:51,736 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2023-11-26 10:49:51,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:51,737 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2023-11-26 10:49:51,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-26 10:49:51,737 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:51,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-26 10:49:51,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:49:51,738 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 10:49:51,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:51,738 INFO L85 PathProgramCache]: Analyzing trace with hash 2125396259, now seen corresponding path program 1 times [2023-11-26 10:49:51,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:51,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165136453] [2023-11-26 10:49:51,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:51,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:51,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:51,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:51,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165136453] [2023-11-26 10:49:51,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165136453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:51,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:51,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:51,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730165233] [2023-11-26 10:49:51,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:51,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:51,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:51,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:51,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:51,803 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:51,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:51,820 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2023-11-26 10:49:51,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:51,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-26 10:49:51,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:51,821 INFO L225 Difference]: With dead ends: 12 [2023-11-26 10:49:51,822 INFO L226 Difference]: Without dead ends: 11 [2023-11-26 10:49:51,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:51,824 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:51,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:49:51,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-11-26 10:49:51,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-11-26 10:49:51,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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) [2023-11-26 10:49:51,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-26 10:49:51,830 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 6 [2023-11-26 10:49:51,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:51,830 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-11-26 10:49:51,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:51,831 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-26 10:49:51,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-26 10:49:51,831 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:51,832 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2023-11-26 10:49:51,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:49:51,832 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 10:49:51,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:51,833 INFO L85 PathProgramCache]: Analyzing trace with hash 780893642, now seen corresponding path program 1 times [2023-11-26 10:49:51,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:51,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954576753] [2023-11-26 10:49:51,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:51,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:51,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:52,048 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:52,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:52,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954576753] [2023-11-26 10:49:52,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954576753] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:49:52,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925342480] [2023-11-26 10:49:52,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:52,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:49:52,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:49:52,054 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:49:52,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 10:49:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:52,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 10:49:52,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:49:52,278 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:52,279 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:49:52,334 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:52,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925342480] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:49:52,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:49:52,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-11-26 10:49:52,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532996210] [2023-11-26 10:49:52,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:49:52,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 10:49:52,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:52,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 10:49:52,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:49:52,342 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 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) [2023-11-26 10:49:52,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:52,414 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2023-11-26 10:49:52,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:49:52,414 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 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 [2023-11-26 10:49:52,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:52,415 INFO L225 Difference]: With dead ends: 24 [2023-11-26 10:49:52,416 INFO L226 Difference]: Without dead ends: 23 [2023-11-26 10:49:52,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2023-11-26 10:49:52,418 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:52,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:49:52,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-26 10:49:52,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-11-26 10:49:52,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 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) [2023-11-26 10:49:52,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2023-11-26 10:49:52,426 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 10 [2023-11-26 10:49:52,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:52,427 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2023-11-26 10:49:52,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 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) [2023-11-26 10:49:52,427 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2023-11-26 10:49:52,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-26 10:49:52,428 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:52,428 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1] [2023-11-26 10:49:52,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 10:49:52,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:49:52,634 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 10:49:52,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:52,635 INFO L85 PathProgramCache]: Analyzing trace with hash -534509889, now seen corresponding path program 2 times [2023-11-26 10:49:52,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:52,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383531568] [2023-11-26 10:49:52,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:52,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:52,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:53,054 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:53,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:53,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383531568] [2023-11-26 10:49:53,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383531568] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:49:53,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344043778] [2023-11-26 10:49:53,058 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 10:49:53,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:49:53,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:49:53,065 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:49:53,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 10:49:53,132 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 10:49:53,133 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:49:53,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-26 10:49:53,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:49:53,336 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:53,336 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:49:53,527 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:53,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344043778] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:49:53,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:49:53,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-11-26 10:49:53,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281088872] [2023-11-26 10:49:53,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:49:53,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-26 10:49:53,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:53,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-26 10:49:53,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=158, Unknown=0, NotChecked=0, Total=272 [2023-11-26 10:49:53,544 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand has 17 states, 16 states have (on average 4.0) internal successors, (64), 17 states have internal predecessors, (64), 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) [2023-11-26 10:49:53,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:53,641 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2023-11-26 10:49:53,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 10:49:53,642 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.0) internal successors, (64), 17 states have internal predecessors, (64), 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 22 [2023-11-26 10:49:53,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:53,645 INFO L225 Difference]: With dead ends: 48 [2023-11-26 10:49:53,645 INFO L226 Difference]: Without dead ends: 47 [2023-11-26 10:49:53,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=175, Unknown=0, NotChecked=0, Total=306 [2023-11-26 10:49:53,649 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:53,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:49:53,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-26 10:49:53,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-11-26 10:49:53,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.0217391304347827) internal successors, (47), 46 states have internal predecessors, (47), 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) [2023-11-26 10:49:53,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2023-11-26 10:49:53,670 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 22 [2023-11-26 10:49:53,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:53,671 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2023-11-26 10:49:53,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.0) internal successors, (64), 17 states have internal predecessors, (64), 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) [2023-11-26 10:49:53,672 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2023-11-26 10:49:53,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-26 10:49:53,675 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:53,675 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 1, 1, 1] [2023-11-26 10:49:53,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 10:49:53,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:49:53,882 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 10:49:53,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:53,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1632633385, now seen corresponding path program 3 times [2023-11-26 10:49:53,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:53,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397823777] [2023-11-26 10:49:53,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:53,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:53,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:54,762 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:54,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:54,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397823777] [2023-11-26 10:49:54,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397823777] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:49:54,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841566067] [2023-11-26 10:49:54,768 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-26 10:49:54,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:49:54,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:49:54,775 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:49:54,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 10:49:54,863 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-26 10:49:54,863 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:49:54,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-26 10:49:54,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:49:55,405 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:55,405 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:49:55,984 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:55,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841566067] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:49:55,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:49:55,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2023-11-26 10:49:55,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561966178] [2023-11-26 10:49:55,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:49:55,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-11-26 10:49:55,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:55,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-11-26 10:49:55,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=510, Invalid=680, Unknown=0, NotChecked=0, Total=1190 [2023-11-26 10:49:55,990 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand has 35 states, 34 states have (on average 4.0) internal successors, (136), 35 states have internal predecessors, (136), 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) [2023-11-26 10:49:56,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:56,161 INFO L93 Difference]: Finished difference Result 96 states and 107 transitions. [2023-11-26 10:49:56,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-26 10:49:56,164 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 4.0) internal successors, (136), 35 states have internal predecessors, (136), 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 46 [2023-11-26 10:49:56,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:56,168 INFO L225 Difference]: With dead ends: 96 [2023-11-26 10:49:56,168 INFO L226 Difference]: Without dead ends: 95 [2023-11-26 10:49:56,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=545, Invalid=715, Unknown=0, NotChecked=0, Total=1260 [2023-11-26 10:49:56,174 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:56,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:49:56,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-11-26 10:49:56,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2023-11-26 10:49:56,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 1.0106382978723405) internal successors, (95), 94 states have internal predecessors, (95), 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) [2023-11-26 10:49:56,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 95 transitions. [2023-11-26 10:49:56,204 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 95 transitions. Word has length 46 [2023-11-26 10:49:56,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:56,209 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 95 transitions. [2023-11-26 10:49:56,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 4.0) internal successors, (136), 35 states have internal predecessors, (136), 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) [2023-11-26 10:49:56,210 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 95 transitions. [2023-11-26 10:49:56,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-26 10:49:56,215 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:56,215 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 1, 1, 1] [2023-11-26 10:49:56,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 10:49:56,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:49:56,424 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 10:49:56,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:56,425 INFO L85 PathProgramCache]: Analyzing trace with hash 18783997, now seen corresponding path program 4 times [2023-11-26 10:49:56,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:56,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747537297] [2023-11-26 10:49:56,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:56,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:56,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:58,101 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 1012 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:58,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:58,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747537297] [2023-11-26 10:49:58,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747537297] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:49:58,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552108675] [2023-11-26 10:49:58,102 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-26 10:49:58,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:49:58,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:49:58,105 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:49:58,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 10:49:58,207 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-26 10:49:58,208 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:49:58,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 47 conjunts are in the unsatisfiable core [2023-11-26 10:49:58,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:49:59,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 1012 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:59,518 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:50:01,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 1012 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:50:01,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552108675] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:50:01,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:50:01,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 70 [2023-11-26 10:50:01,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133924863] [2023-11-26 10:50:01,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:50:01,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2023-11-26 10:50:01,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:50:01,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2023-11-26 10:50:01,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1926, Invalid=3044, Unknown=0, NotChecked=0, Total=4970 [2023-11-26 10:50:01,149 INFO L87 Difference]: Start difference. First operand 95 states and 95 transitions. Second operand has 71 states, 70 states have (on average 4.0) internal successors, (280), 71 states have internal predecessors, (280), 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) [2023-11-26 10:50:01,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:50:01,359 INFO L93 Difference]: Finished difference Result 128 states and 135 transitions. [2023-11-26 10:50:01,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-26 10:50:01,360 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 70 states have (on average 4.0) internal successors, (280), 71 states have internal predecessors, (280), 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 94 [2023-11-26 10:50:01,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:50:01,365 INFO L225 Difference]: With dead ends: 128 [2023-11-26 10:50:01,366 INFO L226 Difference]: Without dead ends: 127 [2023-11-26 10:50:01,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1997, Invalid=3115, Unknown=0, NotChecked=0, Total=5112 [2023-11-26 10:50:01,369 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:50:01,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:50:01,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2023-11-26 10:50:01,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2023-11-26 10:50:01,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.007936507936508) internal successors, (127), 126 states have internal predecessors, (127), 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) [2023-11-26 10:50:01,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 127 transitions. [2023-11-26 10:50:01,392 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 127 transitions. Word has length 94 [2023-11-26 10:50:01,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:50:01,393 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 127 transitions. [2023-11-26 10:50:01,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 70 states have (on average 4.0) internal successors, (280), 71 states have internal predecessors, (280), 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) [2023-11-26 10:50:01,393 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 127 transitions. [2023-11-26 10:50:01,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-26 10:50:01,397 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:50:01,397 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 30, 1, 1, 1] [2023-11-26 10:50:01,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 10:50:01,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-26 10:50:01,604 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 10:50:01,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:50:01,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1145824715, now seen corresponding path program 5 times [2023-11-26 10:50:01,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:50:01,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522318994] [2023-11-26 10:50:01,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:01,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:50:01,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:50:01,739 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:50:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:50:01,865 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:50:01,866 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:50:01,868 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-26 10:50:01,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-26 10:50:01,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 10:50:01,875 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1] [2023-11-26 10:50:01,881 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:50:01,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:50:01 BoogieIcfgContainer [2023-11-26 10:50:01,958 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:50:01,959 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:50:01,959 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:50:01,959 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:50:01,960 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:49:51" (3/4) ... [2023-11-26 10:50:01,961 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-26 10:50:02,068 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 10:50:02,068 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:50:02,069 INFO L158 Benchmark]: Toolchain (without parser) took 11383.53ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 113.3MB in the beginning and 46.8MB in the end (delta: 66.5MB). Peak memory consumption was 96.3MB. Max. memory is 16.1GB. [2023-11-26 10:50:02,070 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 119.5MB. Free memory was 91.6MB in the beginning and 91.5MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:50:02,070 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.43ms. Allocated memory is still 146.8MB. Free memory was 112.8MB in the beginning and 103.1MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 10:50:02,071 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.05ms. Allocated memory is still 146.8MB. Free memory was 103.1MB in the beginning and 101.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:50:02,071 INFO L158 Benchmark]: Boogie Preprocessor took 37.55ms. Allocated memory is still 146.8MB. Free memory was 101.5MB in the beginning and 100.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:50:02,072 INFO L158 Benchmark]: RCFGBuilder took 321.04ms. Allocated memory is still 146.8MB. Free memory was 99.5MB in the beginning and 112.0MB in the end (delta: -12.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 10:50:02,072 INFO L158 Benchmark]: TraceAbstraction took 10626.41ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 111.4MB in the beginning and 50.0MB in the end (delta: 61.4MB). Peak memory consumption was 92.9MB. Max. memory is 16.1GB. [2023-11-26 10:50:02,073 INFO L158 Benchmark]: Witness Printer took 109.77ms. Allocated memory is still 176.2MB. Free memory was 50.0MB in the beginning and 46.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:50:02,077 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 119.5MB. Free memory was 91.6MB in the beginning and 91.5MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.43ms. Allocated memory is still 146.8MB. Free memory was 112.8MB in the beginning and 103.1MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.05ms. Allocated memory is still 146.8MB. Free memory was 103.1MB in the beginning and 101.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.55ms. Allocated memory is still 146.8MB. Free memory was 101.5MB in the beginning and 100.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 321.04ms. Allocated memory is still 146.8MB. Free memory was 99.5MB in the beginning and 112.0MB in the end (delta: -12.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 10626.41ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 111.4MB in the beginning and 50.0MB in the end (delta: 61.4MB). Peak memory consumption was 92.9MB. Max. memory is 16.1GB. * Witness Printer took 109.77ms. Allocated memory is still 176.2MB. Free memory was 50.0MB in the beginning and 46.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 24]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int x = __VERIFIER_nondet_int(); [L21] int y = __VERIFIER_nondet_int(); [L22] COND FALSE !(!(x==1 && y==1)) VAL [x=1, y=1] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=2, y=2] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=4, y=4] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=8, y=8] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=16, y=16] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=32, y=32] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=64, y=64] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=128, y=128] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=256, y=256] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=512, y=512] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=1024, y=1024] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=2048, y=2048] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=4096, y=4096] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=8192, y=8192] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=16384, y=16384] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=32768, y=32768] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=65536, y=65536] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=131072, y=131072] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=262144, y=262144] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=524288, y=524288] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=1048576, y=1048576] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=2097152, y=2097152] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=4194304, y=4194304] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=8388608, y=8388608] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=16777216, y=16777216] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=33554432, y=33554432] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=67108864, y=67108864] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=134217728, y=134217728] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=268435456, y=268435456] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=536870912, y=536870912] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=1073741824, y=1073741824] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] x+y VAL [x=1073741824, y=1073741824] - UnprovableResult [Line: 24]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 10.5s, OverallIterations: 7, TraceHistogramMax: 31, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 212 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 184 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 246 IncrementalHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 28 mSDtfsCounter, 246 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 389 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 851 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=6, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.9s InterpolantComputationTime, 481 NumberOfCodeBlocks, 481 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 513 ConstructedInterpolants, 0 QuantifiedInterpolants, 3133 SizeOfPredicates, 8 NumberOfNonLiveVariables, 412 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 14 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3828 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-26 10:50:02,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7ead81-d3c6-420e-891f-76854f277413/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)