./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ifeqn3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b 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_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/ifeqn3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c28ec531d32a995842654b11d319d79f5f6e1bd0d3e33d9bd3cc173d0787760c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:49:25,006 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:49:25,082 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:49:25,089 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:49:25,090 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:49:25,119 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:49:25,120 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:49:25,121 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:49:25,122 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:49:25,128 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:49:25,129 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:49:25,129 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:49:25,130 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:49:25,132 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:49:25,133 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:49:25,133 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:49:25,134 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:49:25,135 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:49:25,135 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:49:25,136 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:49:25,136 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:49:25,137 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:49:25,138 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:49:25,138 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:49:25,139 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:49:25,140 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:49:25,141 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:49:25,141 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:49:25,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:49:25,142 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:49:25,144 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:49:25,144 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:49:25,145 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:49:25,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:49:25,146 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:49:25,146 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:49:25,147 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:49:25,147 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:49:25,147 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:49:25,148 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_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c28ec531d32a995842654b11d319d79f5f6e1bd0d3e33d9bd3cc173d0787760c [2023-11-06 22:49:25,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:49:25,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:49:25,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:49:25,540 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:49:25,541 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:49:25,543 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/array-fpi/ifeqn3.c [2023-11-06 22:49:28,732 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:49:29,047 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:49:29,048 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/sv-benchmarks/c/array-fpi/ifeqn3.c [2023-11-06 22:49:29,057 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/data/e43d691eb/6674d43a77a84be2a3100eeaea9f6ae9/FLAG34ec70bd2 [2023-11-06 22:49:29,074 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/data/e43d691eb/6674d43a77a84be2a3100eeaea9f6ae9 [2023-11-06 22:49:29,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:49:29,079 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:49:29,081 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:49:29,081 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:49:29,087 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:49:29,088 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:49:29" (1/1) ... [2023-11-06 22:49:29,089 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ef0c08b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:29, skipping insertion in model container [2023-11-06 22:49:29,089 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:49:29" (1/1) ... [2023-11-06 22:49:29,116 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:49:29,316 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/sv-benchmarks/c/array-fpi/ifeqn3.c[589,602] [2023-11-06 22:49:29,343 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:49:29,356 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:49:29,373 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/sv-benchmarks/c/array-fpi/ifeqn3.c[589,602] [2023-11-06 22:49:29,406 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:49:29,424 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:49:29,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:29 WrapperNode [2023-11-06 22:49:29,424 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:49:29,426 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:49:29,426 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:49:29,426 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:49:29,435 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:29" (1/1) ... [2023-11-06 22:49:29,444 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:29" (1/1) ... [2023-11-06 22:49:29,480 INFO L138 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2023-11-06 22:49:29,480 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:49:29,481 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:49:29,481 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:49:29,481 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:49:29,497 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:29" (1/1) ... [2023-11-06 22:49:29,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:29" (1/1) ... [2023-11-06 22:49:29,501 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:29" (1/1) ... [2023-11-06 22:49:29,502 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:29" (1/1) ... [2023-11-06 22:49:29,510 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:29" (1/1) ... [2023-11-06 22:49:29,516 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:29" (1/1) ... [2023-11-06 22:49:29,517 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:29" (1/1) ... [2023-11-06 22:49:29,519 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:29" (1/1) ... [2023-11-06 22:49:29,522 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:49:29,523 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:49:29,524 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:49:29,524 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:49:29,525 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:29" (1/1) ... [2023-11-06 22:49:29,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:49:29,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:49:29,561 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:49:29,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:49:29,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:49:29,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:49:29,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:49:29,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:49:29,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:49:29,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:49:29,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:49:29,718 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:49:29,722 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:49:29,957 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:49:29,964 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:49:29,964 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-06 22:49:29,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:49:29 BoogieIcfgContainer [2023-11-06 22:49:29,967 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:49:29,971 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:49:29,971 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:49:29,975 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:49:29,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:49:29" (1/3) ... [2023-11-06 22:49:29,976 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26bdaaae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:49:29, skipping insertion in model container [2023-11-06 22:49:29,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:29" (2/3) ... [2023-11-06 22:49:29,977 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26bdaaae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:49:29, skipping insertion in model container [2023-11-06 22:49:29,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:49:29" (3/3) ... [2023-11-06 22:49:29,979 INFO L112 eAbstractionObserver]: Analyzing ICFG ifeqn3.c [2023-11-06 22:49:30,002 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:49:30,002 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:49:30,076 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:49:30,088 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=LoopsAndPotentialCycles, 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;@50a31b14, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:49:30,089 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:49:30,093 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 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) [2023-11-06 22:49:30,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-06 22:49:30,103 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:49:30,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:49:30,105 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:49:30,112 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:49:30,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1670316217, now seen corresponding path program 1 times [2023-11-06 22:49:30,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:49:30,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827453719] [2023-11-06 22:49:30,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:30,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:49:30,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:49:30,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:49:30,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827453719] [2023-11-06 22:49:30,299 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-06 22:49:30,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101581309] [2023-11-06 22:49:30,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:30,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:30,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:49:30,308 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:49:30,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:49:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:49:30,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:49:30,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:49:30,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:49:30,502 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:49:30,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101581309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:49:30,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:49:30,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:49:30,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331204975] [2023-11-06 22:49:30,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:49:30,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:49:30,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:49:30,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:49:30,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:49:30,573 INFO L87 Difference]: Start difference. First operand has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 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 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2023-11-06 22:49:30,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:49:30,595 INFO L93 Difference]: Finished difference Result 42 states and 60 transitions. [2023-11-06 22:49:30,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:49:30,597 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-06 22:49:30,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:49:30,608 INFO L225 Difference]: With dead ends: 42 [2023-11-06 22:49:30,608 INFO L226 Difference]: Without dead ends: 19 [2023-11-06 22:49:30,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:49:30,616 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:49:30,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:49:30,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-11-06 22:49:30,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-11-06 22:49:30,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 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) [2023-11-06 22:49:30,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2023-11-06 22:49:30,652 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 12 [2023-11-06 22:49:30,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:49:30,653 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2023-11-06 22:49:30,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2023-11-06 22:49:30,653 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2023-11-06 22:49:30,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-06 22:49:30,654 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:49:30,654 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:49:30,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:49:30,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-06 22:49:30,864 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:49:30,865 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:49:30,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1000416578, now seen corresponding path program 1 times [2023-11-06 22:49:30,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:49:30,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773060501] [2023-11-06 22:49:30,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:30,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:49:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:49:30,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:49:30,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773060501] [2023-11-06 22:49:30,913 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-06 22:49:30,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55937866] [2023-11-06 22:49:30,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:30,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:30,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:49:30,916 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:49:30,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:49:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:49:31,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:49:31,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:49:31,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:49:31,120 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:49:31,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55937866] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:49:31,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:49:31,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:49:31,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116225828] [2023-11-06 22:49:31,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:49:31,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:49:31,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:49:31,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:49:31,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:49:31,124 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2023-11-06 22:49:31,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:49:31,205 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2023-11-06 22:49:31,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:49:31,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-06 22:49:31,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:49:31,208 INFO L225 Difference]: With dead ends: 42 [2023-11-06 22:49:31,208 INFO L226 Difference]: Without dead ends: 31 [2023-11-06 22:49:31,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:49:31,211 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 28 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:49:31,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 15 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:49:31,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-06 22:49:31,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 21. [2023-11-06 22:49:31,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 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) [2023-11-06 22:49:31,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2023-11-06 22:49:31,220 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 12 [2023-11-06 22:49:31,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:49:31,221 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2023-11-06 22:49:31,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2023-11-06 22:49:31,221 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2023-11-06 22:49:31,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-06 22:49:31,222 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:49:31,222 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:49:31,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:49:31,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:31,430 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:49:31,430 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:49:31,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1992201947, now seen corresponding path program 1 times [2023-11-06 22:49:31,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:49:31,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371375539] [2023-11-06 22:49:31,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:31,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:49:31,491 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:49:31,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1154915143] [2023-11-06 22:49:31,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:31,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:31,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:49:31,493 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:49:31,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:49:31,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:49:31,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-06 22:49:31,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:49:31,658 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-06 22:49:31,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:49:31,758 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:49:31,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:49:31,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371375539] [2023-11-06 22:49:31,759 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:49:31,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154915143] [2023-11-06 22:49:31,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154915143] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:49:31,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:49:31,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:49:31,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488112347] [2023-11-06 22:49:31,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:49:31,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:49:31,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:49:31,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:49:31,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:49:31,766 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2023-11-06 22:49:31,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:49:31,925 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2023-11-06 22:49:31,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:49:31,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 18 [2023-11-06 22:49:31,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:49:31,928 INFO L225 Difference]: With dead ends: 37 [2023-11-06 22:49:31,928 INFO L226 Difference]: Without dead ends: 35 [2023-11-06 22:49:31,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:49:31,934 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 12 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:49:31,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 66 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:49:31,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-06 22:49:31,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 26. [2023-11-06 22:49:31,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 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) [2023-11-06 22:49:31,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2023-11-06 22:49:31,954 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 18 [2023-11-06 22:49:31,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:49:31,955 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2023-11-06 22:49:31,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2023-11-06 22:49:31,955 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2023-11-06 22:49:31,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-06 22:49:31,957 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:49:31,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:49:31,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:49:32,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:32,165 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:49:32,165 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:49:32,165 INFO L85 PathProgramCache]: Analyzing trace with hash -217194585, now seen corresponding path program 1 times [2023-11-06 22:49:32,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:49:32,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735430188] [2023-11-06 22:49:32,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:32,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:49:32,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:49:32,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:49:32,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735430188] [2023-11-06 22:49:32,246 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-06 22:49:32,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60328652] [2023-11-06 22:49:32,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:32,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:32,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:49:32,255 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:49:32,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:49:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:49:32,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:49:32,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:49:32,341 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:49:32,341 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:49:32,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60328652] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:49:32,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:49:32,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:49:32,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97417356] [2023-11-06 22:49:32,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:49:32,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:49:32,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:49:32,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:49:32,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:49:32,344 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2023-11-06 22:49:32,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:49:32,397 INFO L93 Difference]: Finished difference Result 55 states and 67 transitions. [2023-11-06 22:49:32,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:49:32,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2023-11-06 22:49:32,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:49:32,401 INFO L225 Difference]: With dead ends: 55 [2023-11-06 22:49:32,401 INFO L226 Difference]: Without dead ends: 35 [2023-11-06 22:49:32,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:49:32,403 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:49:32,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 22 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:49:32,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-06 22:49:32,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 28. [2023-11-06 22:49:32,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 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) [2023-11-06 22:49:32,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2023-11-06 22:49:32,410 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 18 [2023-11-06 22:49:32,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:49:32,411 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2023-11-06 22:49:32,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2023-11-06 22:49:32,411 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2023-11-06 22:49:32,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-06 22:49:32,412 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:49:32,412 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:49:32,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:49:32,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:32,619 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:49:32,620 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:49:32,620 INFO L85 PathProgramCache]: Analyzing trace with hash 259417010, now seen corresponding path program 1 times [2023-11-06 22:49:32,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:49:32,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528008036] [2023-11-06 22:49:32,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:32,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:49:32,660 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:49:32,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [401993074] [2023-11-06 22:49:32,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:32,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:32,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:49:32,662 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:49:32,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:49:32,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:49:32,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:49:32,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:49:32,831 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:49:32,832 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:49:32,911 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:49:32,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:49:32,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528008036] [2023-11-06 22:49:32,912 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:49:32,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401993074] [2023-11-06 22:49:32,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401993074] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:49:32,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:49:32,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-11-06 22:49:32,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690093546] [2023-11-06 22:49:32,913 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:49:32,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:49:32,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:49:32,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:49:32,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:49:32,916 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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) [2023-11-06 22:49:33,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:49:33,142 INFO L93 Difference]: Finished difference Result 70 states and 82 transitions. [2023-11-06 22:49:33,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:49:33,143 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-11-06 22:49:33,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:49:33,146 INFO L225 Difference]: With dead ends: 70 [2023-11-06 22:49:33,147 INFO L226 Difference]: Without dead ends: 43 [2023-11-06 22:49:33,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:49:33,150 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 29 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:49:33,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 49 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:49:33,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-11-06 22:49:33,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 27. [2023-11-06 22:49:33,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 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) [2023-11-06 22:49:33,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2023-11-06 22:49:33,165 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 21 [2023-11-06 22:49:33,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:49:33,165 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2023-11-06 22:49:33,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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) [2023-11-06 22:49:33,166 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2023-11-06 22:49:33,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-06 22:49:33,168 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:49:33,168 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:49:33,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:49:33,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:33,375 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:49:33,376 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:49:33,376 INFO L85 PathProgramCache]: Analyzing trace with hash 939318754, now seen corresponding path program 1 times [2023-11-06 22:49:33,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:49:33,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303461677] [2023-11-06 22:49:33,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:33,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:49:33,421 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:49:33,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1493520574] [2023-11-06 22:49:33,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:33,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:33,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:49:33,424 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:49:33,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:49:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:49:33,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-06 22:49:33,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:49:33,596 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-06 22:49:33,709 INFO L322 Elim1Store]: treesize reduction 33, result has 34.0 percent of original size [2023-11-06 22:49:33,710 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 39 [2023-11-06 22:49:33,784 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:49:33,784 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:49:34,887 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-06 22:49:34,887 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 114 treesize of output 1 [2023-11-06 22:49:34,905 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-06 22:49:34,906 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 112 treesize of output 1 [2023-11-06 22:49:34,924 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-06 22:49:34,924 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 1 [2023-11-06 22:49:34,947 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:49:34,947 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 119 treesize of output 117 [2023-11-06 22:49:35,000 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2023-11-06 22:49:35,030 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:49:35,030 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 109 [2023-11-06 22:49:35,153 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-06 22:49:35,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:49:35,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303461677] [2023-11-06 22:49:35,154 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:49:35,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493520574] [2023-11-06 22:49:35,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493520574] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:49:35,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:49:35,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2023-11-06 22:49:35,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097963536] [2023-11-06 22:49:35,156 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:49:35,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-06 22:49:35,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:49:35,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-06 22:49:35,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:49:35,158 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 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) [2023-11-06 22:49:38,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 22:49:40,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:49:40,110 INFO L93 Difference]: Finished difference Result 112 states and 131 transitions. [2023-11-06 22:49:40,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-06 22:49:40,111 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 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 24 [2023-11-06 22:49:40,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:49:40,112 INFO L225 Difference]: With dead ends: 112 [2023-11-06 22:49:40,112 INFO L226 Difference]: Without dead ends: 92 [2023-11-06 22:49:40,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2023-11-06 22:49:40,114 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 76 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 35 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:49:40,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 90 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 166 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2023-11-06 22:49:40,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-11-06 22:49:40,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 40. [2023-11-06 22:49:40,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.205128205128205) internal successors, (47), 39 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) [2023-11-06 22:49:40,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2023-11-06 22:49:40,156 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 24 [2023-11-06 22:49:40,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:49:40,157 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2023-11-06 22:49:40,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 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) [2023-11-06 22:49:40,157 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2023-11-06 22:49:40,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-06 22:49:40,159 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:49:40,160 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:49:40,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:49:40,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:40,368 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:49:40,368 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:49:40,368 INFO L85 PathProgramCache]: Analyzing trace with hash 430403928, now seen corresponding path program 1 times [2023-11-06 22:49:40,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:49:40,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579831444] [2023-11-06 22:49:40,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:40,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:49:40,410 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:49:40,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [405273301] [2023-11-06 22:49:40,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:40,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:40,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:49:40,412 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:49:40,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 22:49:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:49:40,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-06 22:49:40,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:49:40,581 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-06 22:49:40,647 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-06 22:49:40,746 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-06 22:49:40,848 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-06 22:49:40,961 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-06 22:49:40,962 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-06 22:49:41,232 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:49:41,232 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:49:43,148 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse7 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (or (let ((.cse4 (mod .cse7 4294967296))) (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse2 (* .cse4 8))) (and (or (forall ((v_ArrVal_124 (Array Int Int))) (or (not (= v_ArrVal_124 (let ((.cse1 (+ .cse2 |c_ULTIMATE.start_main_~a~0#1.offset|))) (store .cse0 .cse1 (select v_ArrVal_124 .cse1))))) (= 6 (select (select (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_124))) (store .cse3 |c_ULTIMATE.start_main_~b~0#1.base| (store (select .cse3 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)))) (< 2147483647 .cse4)) (or (forall ((v_ArrVal_124 (Array Int Int))) (or (not (= v_ArrVal_124 (let ((.cse5 (+ .cse2 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (store .cse0 .cse5 (select v_ArrVal_124 .cse5))))) (= 6 (select (select (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_124))) (store .cse6 |c_ULTIMATE.start_main_~b~0#1.base| (store (select .cse6 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)))) (< .cse4 2147483648))))) (= .cse7 0))) is different from false [2023-11-06 22:49:43,202 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:49:43,202 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 92 [2023-11-06 22:49:43,299 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-06 22:49:43,300 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 90 [2023-11-06 22:49:43,422 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2023-11-06 22:49:43,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:49:43,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579831444] [2023-11-06 22:49:43,423 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:49:43,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405273301] [2023-11-06 22:49:43,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405273301] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:49:43,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:49:43,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 23 [2023-11-06 22:49:43,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416382576] [2023-11-06 22:49:43,425 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:49:43,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-06 22:49:43,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:49:43,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-06 22:49:43,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=371, Unknown=11, NotChecked=40, Total=506 [2023-11-06 22:49:43,428 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand has 23 states, 23 states have (on average 2.217391304347826) internal successors, (51), 23 states have internal predecessors, (51), 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) [2023-11-06 22:49:54,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:49:54,139 INFO L93 Difference]: Finished difference Result 175 states and 197 transitions. [2023-11-06 22:49:54,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-11-06 22:49:54,139 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.217391304347826) internal successors, (51), 23 states have internal predecessors, (51), 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 28 [2023-11-06 22:49:54,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:49:54,142 INFO L225 Difference]: With dead ends: 175 [2023-11-06 22:49:54,143 INFO L226 Difference]: Without dead ends: 173 [2023-11-06 22:49:54,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 655 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=592, Invalid=2045, Unknown=19, NotChecked=100, Total=2756 [2023-11-06 22:49:54,150 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 386 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 136 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 169 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:49:54,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 194 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 388 Invalid, 7 Unknown, 169 Unchecked, 2.3s Time] [2023-11-06 22:49:54,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-11-06 22:49:54,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 80. [2023-11-06 22:49:54,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.2784810126582278) internal successors, (101), 79 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:54,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 101 transitions. [2023-11-06 22:49:54,203 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 101 transitions. Word has length 28 [2023-11-06 22:49:54,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:49:54,204 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 101 transitions. [2023-11-06 22:49:54,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.217391304347826) internal successors, (51), 23 states have internal predecessors, (51), 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) [2023-11-06 22:49:54,204 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 101 transitions. [2023-11-06 22:49:54,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-06 22:49:54,207 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:49:54,207 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:49:54,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:49:54,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:54,416 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:49:54,416 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:49:54,416 INFO L85 PathProgramCache]: Analyzing trace with hash 877615566, now seen corresponding path program 2 times [2023-11-06 22:49:54,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:49:54,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122420012] [2023-11-06 22:49:54,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:54,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:49:54,466 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:49:54,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1632273057] [2023-11-06 22:49:54,467 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:49:54,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:54,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:49:54,468 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:49:54,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 22:49:54,593 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:49:54,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:49:54,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:49:54,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:49:54,751 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-06 22:49:54,751 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:49:54,853 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-06 22:49:54,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:49:54,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122420012] [2023-11-06 22:49:54,854 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:49:54,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632273057] [2023-11-06 22:49:54,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632273057] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:49:54,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:49:54,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2023-11-06 22:49:54,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152484251] [2023-11-06 22:49:54,855 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:49:54,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:49:54,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:49:54,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:49:54,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:49:54,857 INFO L87 Difference]: Start difference. First operand 80 states and 101 transitions. Second operand has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 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) [2023-11-06 22:49:55,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:49:55,151 INFO L93 Difference]: Finished difference Result 190 states and 228 transitions. [2023-11-06 22:49:55,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:49:55,152 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 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 32 [2023-11-06 22:49:55,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:49:55,156 INFO L225 Difference]: With dead ends: 190 [2023-11-06 22:49:55,156 INFO L226 Difference]: Without dead ends: 122 [2023-11-06 22:49:55,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 48 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:49:55,159 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 63 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:49:55,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 63 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:49:55,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-11-06 22:49:55,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 97. [2023-11-06 22:49:55,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.21875) internal successors, (117), 96 states have internal predecessors, (117), 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) [2023-11-06 22:49:55,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 117 transitions. [2023-11-06 22:49:55,222 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 117 transitions. Word has length 32 [2023-11-06 22:49:55,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:49:55,223 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 117 transitions. [2023-11-06 22:49:55,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 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) [2023-11-06 22:49:55,223 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 117 transitions. [2023-11-06 22:49:55,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-06 22:49:55,225 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:49:55,225 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:49:55,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-06 22:49:55,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:55,437 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:49:55,437 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:49:55,438 INFO L85 PathProgramCache]: Analyzing trace with hash -187195163, now seen corresponding path program 2 times [2023-11-06 22:49:55,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:49:55,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326977985] [2023-11-06 22:49:55,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:55,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:49:55,503 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:49:55,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [642688693] [2023-11-06 22:49:55,512 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:49:55,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:55,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:49:55,516 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:49:55,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 22:49:55,624 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:49:55,624 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:49:55,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:49:55,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:49:55,786 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 32 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:49:55,787 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:49:55,916 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 32 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:49:55,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:49:55,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326977985] [2023-11-06 22:49:55,917 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:49:55,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642688693] [2023-11-06 22:49:55,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642688693] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:49:55,917 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:49:55,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2023-11-06 22:49:55,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142519576] [2023-11-06 22:49:55,918 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:49:55,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-06 22:49:55,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:49:55,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-06 22:49:55,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:49:55,920 INFO L87 Difference]: Start difference. First operand 97 states and 117 transitions. Second operand has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 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) [2023-11-06 22:49:56,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:49:56,404 INFO L93 Difference]: Finished difference Result 236 states and 273 transitions. [2023-11-06 22:49:56,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 22:49:56,405 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 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 36 [2023-11-06 22:49:56,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:49:56,406 INFO L225 Difference]: With dead ends: 236 [2023-11-06 22:49:56,407 INFO L226 Difference]: Without dead ends: 177 [2023-11-06 22:49:56,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 52 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=158, Invalid=394, Unknown=0, NotChecked=0, Total=552 [2023-11-06 22:49:56,409 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 136 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:49:56,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 97 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:49:56,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-11-06 22:49:56,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 134. [2023-11-06 22:49:56,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 1.1879699248120301) internal successors, (158), 133 states have internal predecessors, (158), 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) [2023-11-06 22:49:56,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 158 transitions. [2023-11-06 22:49:56,463 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 158 transitions. Word has length 36 [2023-11-06 22:49:56,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:49:56,463 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 158 transitions. [2023-11-06 22:49:56,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 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) [2023-11-06 22:49:56,464 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 158 transitions. [2023-11-06 22:49:56,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-06 22:49:56,466 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:49:56,466 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:49:56,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:49:56,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:56,673 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:49:56,673 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:49:56,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1173959464, now seen corresponding path program 3 times [2023-11-06 22:49:56,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:49:56,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071290736] [2023-11-06 22:49:56,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:56,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:49:56,708 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:49:56,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [938974580] [2023-11-06 22:49:56,709 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:49:56,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:56,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:49:56,711 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:49:56,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-06 22:49:56,878 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-06 22:49:56,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:49:56,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-06 22:49:56,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:49:57,146 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 22:49:57,146 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:49:57,430 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 22:49:57,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:49:57,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071290736] [2023-11-06 22:49:57,431 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:49:57,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938974580] [2023-11-06 22:49:57,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938974580] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:49:57,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:49:57,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 20 [2023-11-06 22:49:57,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195550295] [2023-11-06 22:49:57,432 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:49:57,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-06 22:49:57,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:49:57,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-06 22:49:57,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2023-11-06 22:49:57,434 INFO L87 Difference]: Start difference. First operand 134 states and 158 transitions. Second operand has 20 states, 20 states have (on average 2.45) internal successors, (49), 20 states have internal predecessors, (49), 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) [2023-11-06 22:49:58,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:49:58,296 INFO L93 Difference]: Finished difference Result 171 states and 193 transitions. [2023-11-06 22:49:58,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-06 22:49:58,297 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.45) internal successors, (49), 20 states have internal predecessors, (49), 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 37 [2023-11-06 22:49:58,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:49:58,300 INFO L225 Difference]: With dead ends: 171 [2023-11-06 22:49:58,300 INFO L226 Difference]: Without dead ends: 162 [2023-11-06 22:49:58,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=412, Invalid=1394, Unknown=0, NotChecked=0, Total=1806 [2023-11-06 22:49:58,302 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 145 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:49:58,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 94 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:49:58,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-11-06 22:49:58,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 134. [2023-11-06 22:49:58,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 1.1729323308270676) internal successors, (156), 133 states have internal predecessors, (156), 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) [2023-11-06 22:49:58,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 156 transitions. [2023-11-06 22:49:58,352 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 156 transitions. Word has length 37 [2023-11-06 22:49:58,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:49:58,355 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 156 transitions. [2023-11-06 22:49:58,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.45) internal successors, (49), 20 states have internal predecessors, (49), 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) [2023-11-06 22:49:58,355 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 156 transitions. [2023-11-06 22:49:58,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-06 22:49:58,359 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:49:58,359 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:49:58,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:49:58,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-06 22:49:58,566 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:49:58,566 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:49:58,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1129715953, now seen corresponding path program 4 times [2023-11-06 22:49:58,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:49:58,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904298799] [2023-11-06 22:49:58,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:58,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:49:58,594 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:49:58,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1594809237] [2023-11-06 22:49:58,594 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 22:49:58,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:58,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:49:58,596 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:49:58,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-06 22:49:58,904 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 22:49:58,904 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:49:58,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 53 conjunts are in the unsatisfiable core [2023-11-06 22:49:58,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:49:58,931 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-06 22:49:58,973 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-06 22:49:59,054 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-06 22:49:59,166 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-11-06 22:49:59,285 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-11-06 22:49:59,420 INFO L322 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-11-06 22:49:59,421 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 38 [2023-11-06 22:49:59,603 INFO L322 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2023-11-06 22:49:59,603 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 40 treesize of output 48 [2023-11-06 22:50:00,130 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:50:00,130 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:50:04,765 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse8 (* .cse0 8)) (.cse3 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse5 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (or (< .cse0 2147483648) (forall ((v_ArrVal_265 (Array Int Int))) (or (= (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_265))) (let ((.cse2 (store (select .cse1 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (let ((.cse4 (select (select (store .cse1 |c_ULTIMATE.start_main_~b~0#1.base| .cse2) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse1 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse2 .cse3 (+ .cse4 1))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5) .cse4)))) 18) (not (= v_ArrVal_265 (let ((.cse7 (+ .cse8 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (store .cse6 .cse7 (select v_ArrVal_265 .cse7)))))))) (or (forall ((v_ArrVal_265 (Array Int Int))) (or (not (= v_ArrVal_265 (let ((.cse9 (+ .cse8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (store .cse6 .cse9 (select v_ArrVal_265 .cse9))))) (= (let ((.cse10 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_265))) (let ((.cse11 (store (select .cse10 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (let ((.cse12 (select (select (store .cse10 |c_ULTIMATE.start_main_~b~0#1.base| .cse11) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse10 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse11 .cse3 (+ .cse12 1))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5) .cse12)))) 18))) (< 2147483647 .cse0))))) is different from false [2023-11-06 22:50:06,917 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (let ((.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse8 (* .cse0 8)) (.cse3 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse5 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (or (< 2147483647 .cse0) (forall ((v_ArrVal_265 (Array Int Int))) (or (= (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_265))) (let ((.cse2 (store (select .cse1 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (let ((.cse4 (select (select (store .cse1 |c_ULTIMATE.start_main_~b~0#1.base| .cse2) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse1 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse2 .cse3 (+ .cse4 1))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5) .cse4)))) 18) (not (= (let ((.cse7 (+ .cse8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (store .cse6 .cse7 (select v_ArrVal_265 .cse7))) v_ArrVal_265))))) (or (forall ((v_ArrVal_265 (Array Int Int))) (or (not (= v_ArrVal_265 (let ((.cse9 (+ .cse8 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (store .cse6 .cse9 (select v_ArrVal_265 .cse9))))) (= (let ((.cse10 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_265))) (let ((.cse11 (store (select .cse10 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (let ((.cse12 (select (select (store .cse10 |c_ULTIMATE.start_main_~b~0#1.base| .cse11) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse10 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse11 .cse3 (+ .cse12 1))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5) .cse12)))) 18))) (< .cse0 2147483648))))) is different from false [2023-11-06 22:50:08,283 WARN L839 $PredicateComparison]: unable to prove that (or (= |c_ULTIMATE.start_main_~i~0#1| 0) (let ((.cse38 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296)) (.cse35 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse23 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse37 (* .cse35 8)) (.cse36 (* .cse38 8))) (let ((.cse11 (+ .cse36 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse12 (< .cse38 2147483648)) (.cse0 (< 2147483647 .cse38)) (.cse20 (+ .cse37 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse21 (< .cse35 2147483648)) (.cse14 (+ .cse37 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse7 (+ .cse36 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse3 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse5 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse16 (< 2147483647 .cse35)) (.cse13 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse22 (* 8 .cse23))) (and (or (let ((.cse15 (+ 6 (select .cse13 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse22))))) (and (or (let ((.cse6 (store .cse13 .cse14 .cse15))) (and (or .cse0 (forall ((v_ArrVal_265 (Array Int Int))) (or (= (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_265))) (let ((.cse2 (store (select .cse1 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (let ((.cse4 (select (select (store .cse1 |c_ULTIMATE.start_main_~b~0#1.base| .cse2) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse1 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse2 .cse3 (+ .cse4 1))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5) .cse4)))) 18) (not (= v_ArrVal_265 (store .cse6 .cse7 (select v_ArrVal_265 .cse7))))))) (or (forall ((v_ArrVal_265 (Array Int Int))) (or (= (let ((.cse8 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_265))) (let ((.cse9 (store (select .cse8 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (let ((.cse10 (select (select (store .cse8 |c_ULTIMATE.start_main_~b~0#1.base| .cse9) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse8 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse9 .cse3 (+ .cse10 1))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5) .cse10)))) 18) (not (= v_ArrVal_265 (store .cse6 .cse11 (select v_ArrVal_265 .cse11)))))) .cse12))) .cse16) (or (forall ((v_ArrVal_265 (Array Int Int))) (or (= (let ((.cse17 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_265))) (let ((.cse18 (store (select .cse17 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (let ((.cse19 (select (select (store .cse17 |c_ULTIMATE.start_main_~b~0#1.base| .cse18) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse17 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse18 .cse3 (+ .cse19 1))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5) .cse19)))) 18) (not (= v_ArrVal_265 (store (store .cse13 .cse20 .cse15) .cse11 (select v_ArrVal_265 .cse11)))))) .cse21))) (< 2147483647 .cse23)) (or (let ((.cse31 (+ (select .cse13 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse22)) 6))) (and (or (let ((.cse27 (store .cse13 .cse20 .cse31))) (and (or (forall ((v_ArrVal_265 (Array Int Int))) (or (= (let ((.cse24 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_265))) (let ((.cse25 (store (select .cse24 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (let ((.cse26 (select (select (store .cse24 |c_ULTIMATE.start_main_~b~0#1.base| .cse25) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse24 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse25 .cse3 (+ .cse26 1))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5) .cse26)))) 18) (not (= v_ArrVal_265 (store .cse27 .cse11 (select v_ArrVal_265 .cse11)))))) .cse12) (or (forall ((v_ArrVal_265 (Array Int Int))) (or (not (= v_ArrVal_265 (store .cse27 .cse7 (select v_ArrVal_265 .cse7)))) (= (let ((.cse28 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_265))) (let ((.cse29 (store (select .cse28 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (let ((.cse30 (select (select (store .cse28 |c_ULTIMATE.start_main_~b~0#1.base| .cse29) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse28 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse29 .cse3 (+ .cse30 1))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5) .cse30)))) 18))) .cse0))) .cse21) (or (forall ((v_ArrVal_265 (Array Int Int))) (or (not (= v_ArrVal_265 (store (store .cse13 .cse14 .cse31) .cse7 (select v_ArrVal_265 .cse7)))) (= (let ((.cse32 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_265))) (let ((.cse33 (store (select .cse32 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (let ((.cse34 (select (select (store .cse32 |c_ULTIMATE.start_main_~b~0#1.base| .cse33) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse32 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse33 .cse3 (+ .cse34 1))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5) .cse34)))) 18))) .cse16))) (< .cse23 2147483648))))))) is different from false [2023-11-06 22:50:12,603 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse39 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (or (let ((.cse38 (mod .cse39 4294967296)) (.cse36 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse23 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse37 (* 8 .cse36)) (.cse35 (* .cse38 8))) (let ((.cse14 (+ .cse35 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse16 (< .cse38 2147483648)) (.cse17 (< 2147483647 .cse38)) (.cse8 (< .cse36 2147483648)) (.cse12 (+ .cse37 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse6 (+ .cse37 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse2 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse4 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse7 (< 2147483647 .cse36)) (.cse18 (+ .cse35 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse13 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse22 (* .cse23 8))) (and (or (let ((.cse15 (+ 6 (select .cse13 (+ .cse22 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))))) (and (or (let ((.cse5 (store .cse13 .cse14 .cse15))) (and (or (forall ((v_ArrVal_265 (Array Int Int))) (or (= (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_265))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (let ((.cse3 (select (select (store .cse0 |c_ULTIMATE.start_main_~b~0#1.base| .cse1) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse1 .cse2 (+ .cse3 1))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4) .cse3)))) 18) (not (= v_ArrVal_265 (store .cse5 .cse6 (select v_ArrVal_265 .cse6)))))) .cse7) (or .cse8 (forall ((v_ArrVal_265 (Array Int Int))) (or (= (let ((.cse9 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_265))) (let ((.cse10 (store (select .cse9 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (let ((.cse11 (select (select (store .cse9 |c_ULTIMATE.start_main_~b~0#1.base| .cse10) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse9 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse10 .cse2 (+ .cse11 1))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4) .cse11)))) 18) (not (= v_ArrVal_265 (store .cse5 .cse12 (select v_ArrVal_265 .cse12))))))))) .cse16) (or .cse17 (forall ((v_ArrVal_265 (Array Int Int))) (or (not (= (store (store .cse13 .cse18 .cse15) .cse6 (select v_ArrVal_265 .cse6)) v_ArrVal_265)) (= (let ((.cse19 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_265))) (let ((.cse20 (store (select .cse19 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (let ((.cse21 (select (select (store .cse19 |c_ULTIMATE.start_main_~b~0#1.base| .cse20) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse19 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse20 .cse2 (+ .cse21 1))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4) .cse21)))) 18)))))) (< .cse23 2147483648)) (or (< 2147483647 .cse23) (let ((.cse24 (+ 6 (select .cse13 (+ .cse22 |c_ULTIMATE.start_main_~a~0#1.offset|))))) (and (or (forall ((v_ArrVal_265 (Array Int Int))) (or (not (= v_ArrVal_265 (store (store .cse13 .cse14 .cse24) .cse12 (select v_ArrVal_265 .cse12)))) (= (let ((.cse25 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_265))) (let ((.cse26 (store (select .cse25 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (let ((.cse27 (select (select (store .cse25 |c_ULTIMATE.start_main_~b~0#1.base| .cse26) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse25 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse26 .cse2 (+ .cse27 1))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4) .cse27)))) 18))) .cse16) (or .cse17 (let ((.cse31 (store .cse13 .cse18 .cse24))) (and (or .cse8 (forall ((v_ArrVal_265 (Array Int Int))) (or (= (let ((.cse28 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_265))) (let ((.cse29 (store (select .cse28 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (let ((.cse30 (select (select (store .cse28 |c_ULTIMATE.start_main_~b~0#1.base| .cse29) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse28 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse29 .cse2 (+ .cse30 1))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4) .cse30)))) 18) (not (= (store .cse31 .cse12 (select v_ArrVal_265 .cse12)) v_ArrVal_265))))) (or (forall ((v_ArrVal_265 (Array Int Int))) (or (not (= v_ArrVal_265 (store .cse31 .cse6 (select v_ArrVal_265 .cse6)))) (= (let ((.cse32 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_265))) (let ((.cse33 (store (select .cse32 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (let ((.cse34 (select (select (store .cse32 |c_ULTIMATE.start_main_~b~0#1.base| .cse33) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse32 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse33 .cse2 (+ .cse34 1))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4) .cse34)))) 18))) .cse7))))))))))) (= .cse39 0))) is different from false [2023-11-06 22:50:13,283 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-06 22:50:13,284 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 257 treesize of output 249 [2023-11-06 22:50:13,397 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 11 not checked. [2023-11-06 22:50:13,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:13,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904298799] [2023-11-06 22:50:13,398 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:50:13,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594809237] [2023-11-06 22:50:13,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594809237] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:50:13,398 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:50:13,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2023-11-06 22:50:13,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075566490] [2023-11-06 22:50:13,399 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:50:13,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-06 22:50:13,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:13,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-06 22:50:13,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=738, Unknown=4, NotChecked=236, Total=1122 [2023-11-06 22:50:13,401 INFO L87 Difference]: Start difference. First operand 134 states and 156 transitions. Second operand has 34 states, 34 states have (on average 2.088235294117647) internal successors, (71), 34 states have internal predecessors, (71), 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) [2023-11-06 22:50:19,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:19,037 INFO L93 Difference]: Finished difference Result 292 states and 338 transitions. [2023-11-06 22:50:19,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-06 22:50:19,038 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.088235294117647) internal successors, (71), 34 states have internal predecessors, (71), 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 38 [2023-11-06 22:50:19,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:19,039 INFO L225 Difference]: With dead ends: 292 [2023-11-06 22:50:19,039 INFO L226 Difference]: Without dead ends: 110 [2023-11-06 22:50:19,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 42 SyntacticMatches, 6 SemanticMatches, 44 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 464 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=362, Invalid=1371, Unknown=5, NotChecked=332, Total=2070 [2023-11-06 22:50:19,043 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 100 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 254 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:19,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 158 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 557 Invalid, 0 Unknown, 254 Unchecked, 1.5s Time] [2023-11-06 22:50:19,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-06 22:50:19,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 103. [2023-11-06 22:50:19,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 102 states have (on average 1.1764705882352942) internal successors, (120), 102 states have internal predecessors, (120), 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) [2023-11-06 22:50:19,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 120 transitions. [2023-11-06 22:50:19,100 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 120 transitions. Word has length 38 [2023-11-06 22:50:19,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:19,100 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 120 transitions. [2023-11-06 22:50:19,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.088235294117647) internal successors, (71), 34 states have internal predecessors, (71), 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) [2023-11-06 22:50:19,101 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 120 transitions. [2023-11-06 22:50:19,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-06 22:50:19,103 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:19,103 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:50:19,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:50:19,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-06 22:50:19,311 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:50:19,312 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:19,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1096318795, now seen corresponding path program 3 times [2023-11-06 22:50:19,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:19,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392682904] [2023-11-06 22:50:19,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:19,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:19,340 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:50:19,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [882655464] [2023-11-06 22:50:19,341 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:50:19,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:50:19,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:50:19,342 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:50:19,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-06 22:50:20,297 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-06 22:50:20,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:50:20,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-06 22:50:20,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:50:20,558 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 35 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:50:20,558 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:50:20,785 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 35 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:50:20,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:20,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392682904] [2023-11-06 22:50:20,786 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:50:20,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882655464] [2023-11-06 22:50:20,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882655464] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:50:20,787 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:50:20,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2023-11-06 22:50:20,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215280993] [2023-11-06 22:50:20,787 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:50:20,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-06 22:50:20,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:20,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-06 22:50:20,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2023-11-06 22:50:20,789 INFO L87 Difference]: Start difference. First operand 103 states and 120 transitions. Second operand has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 18 states have internal predecessors, (53), 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) [2023-11-06 22:50:21,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:21,536 INFO L93 Difference]: Finished difference Result 241 states and 269 transitions. [2023-11-06 22:50:21,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-06 22:50:21,537 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 18 states have internal predecessors, (53), 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 39 [2023-11-06 22:50:21,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:21,540 INFO L225 Difference]: With dead ends: 241 [2023-11-06 22:50:21,540 INFO L226 Difference]: Without dead ends: 171 [2023-11-06 22:50:21,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 54 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=220, Invalid=592, Unknown=0, NotChecked=0, Total=812 [2023-11-06 22:50:21,542 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 291 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:21,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 115 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 22:50:21,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2023-11-06 22:50:21,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 115. [2023-11-06 22:50:21,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 1.1403508771929824) internal successors, (130), 114 states have internal predecessors, (130), 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) [2023-11-06 22:50:21,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 130 transitions. [2023-11-06 22:50:21,602 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 130 transitions. Word has length 39 [2023-11-06 22:50:21,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:21,602 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 130 transitions. [2023-11-06 22:50:21,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 18 states have internal predecessors, (53), 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) [2023-11-06 22:50:21,603 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 130 transitions. [2023-11-06 22:50:21,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-06 22:50:21,604 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:21,604 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:50:21,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:50:21,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-06 22:50:21,819 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:50:21,819 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:21,819 INFO L85 PathProgramCache]: Analyzing trace with hash 2062215163, now seen corresponding path program 5 times [2023-11-06 22:50:21,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:21,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559274219] [2023-11-06 22:50:21,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:21,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:21,847 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:50:21,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [964365421] [2023-11-06 22:50:21,847 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-06 22:50:21,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:50:21,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:50:21,849 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:50:21,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-06 22:50:23,414 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-11-06 22:50:23,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:50:23,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 22:50:23,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:50:23,651 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 29 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:50:23,652 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:50:23,883 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 24 proven. 23 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:50:23,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:23,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559274219] [2023-11-06 22:50:23,884 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:50:23,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964365421] [2023-11-06 22:50:23,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964365421] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:50:23,884 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:50:23,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 18 [2023-11-06 22:50:23,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005766428] [2023-11-06 22:50:23,885 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:50:23,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-06 22:50:23,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:23,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-06 22:50:23,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2023-11-06 22:50:23,886 INFO L87 Difference]: Start difference. First operand 115 states and 130 transitions. Second operand has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 18 states have internal predecessors, (58), 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) [2023-11-06 22:50:24,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:24,953 INFO L93 Difference]: Finished difference Result 212 states and 236 transitions. [2023-11-06 22:50:24,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-06 22:50:24,953 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 18 states have internal predecessors, (58), 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 40 [2023-11-06 22:50:24,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:24,954 INFO L225 Difference]: With dead ends: 212 [2023-11-06 22:50:24,954 INFO L226 Difference]: Without dead ends: 104 [2023-11-06 22:50:24,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 63 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=254, Invalid=738, Unknown=0, NotChecked=0, Total=992 [2023-11-06 22:50:24,956 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 187 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:24,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 161 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-06 22:50:24,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-06 22:50:24,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 74. [2023-11-06 22:50:24,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.0684931506849316) internal successors, (78), 73 states have internal predecessors, (78), 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) [2023-11-06 22:50:24,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 78 transitions. [2023-11-06 22:50:24,989 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 78 transitions. Word has length 40 [2023-11-06 22:50:24,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:24,989 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 78 transitions. [2023-11-06 22:50:24,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 18 states have internal predecessors, (58), 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) [2023-11-06 22:50:24,990 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 78 transitions. [2023-11-06 22:50:24,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-06 22:50:24,991 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:24,991 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:50:24,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:50:25,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-06 22:50:25,196 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:50:25,196 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:25,197 INFO L85 PathProgramCache]: Analyzing trace with hash -734671131, now seen corresponding path program 4 times [2023-11-06 22:50:25,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:25,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140800757] [2023-11-06 22:50:25,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:25,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:25,226 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:50:25,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1657233768] [2023-11-06 22:50:25,227 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 22:50:25,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:50:25,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:50:25,229 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:50:25,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa44c32-650f-481f-ac11-7857fd37afe3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-06 22:50:26,328 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 22:50:26,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:50:26,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 45 conjunts are in the unsatisfiable core [2023-11-06 22:50:26,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:50:26,565 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-06 22:50:26,687 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-06 22:50:26,687 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 27 [2023-11-06 22:50:26,866 INFO L322 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2023-11-06 22:50:26,866 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 46 [2023-11-06 22:50:27,080 INFO L322 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-11-06 22:50:27,081 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 66 [2023-11-06 22:50:27,361 INFO L322 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2023-11-06 22:50:27,362 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 76 treesize of output 84 [2023-11-06 22:50:27,786 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 6 proven. 60 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-06 22:50:27,786 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:50:51,861 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse55 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse2 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse59 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296)) (.cse56 (* .cse55 8))) (let ((.cse0 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse16 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse17 (+ .cse56 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse57 (* .cse59 8)) (.cse58 (* 8 .cse2))) (let ((.cse1 (< .cse59 2147483648)) (.cse30 (< 2147483647 .cse59)) (.cse21 (+ .cse58 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse28 (+ .cse57 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse35 (select .cse16 .cse17)) (.cse36 (+ .cse56 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse37 (< 2147483647 .cse55)) (.cse4 (+ (* (mod (+ 3 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse9 (+ .cse58 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse11 (+ .cse58 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse12 (+ .cse57 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse14 (+ .cse57 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse15 (+ .cse56 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse31 (< .cse55 2147483648)) (.cse38 (* 8 .cse0))) (and (or (< .cse0 2147483648) (let ((.cse5 (select .cse16 (+ (- 34359738368) .cse38 |c_ULTIMATE.start_main_~b~0#1.offset|))) (.cse18 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse38))) (and (or (and (or .cse1 (and (or (< .cse2 2147483648) (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= 1 (select (let ((.cse8 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse18))) (let ((.cse13 (store .cse16 .cse17 (+ .cse5 .cse8)))) (let ((.cse7 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse13) |ULTIMATE.start_main_~a~0#1.base|) .cse15))) (let ((.cse10 (store .cse13 .cse14 (+ .cse5 .cse7 .cse8)))) (let ((.cse6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse10) |ULTIMATE.start_main_~a~0#1.base|) .cse12))) (let ((.cse3 (store .cse10 .cse11 (+ .cse5 .cse6 .cse7 .cse8)))) (store .cse3 .cse4 (+ .cse5 .cse6 .cse7 .cse8 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse3) |ULTIMATE.start_main_~a~0#1.base|) .cse9))))))))) |c_ULTIMATE.start_main_~b~0#1.offset|)))) (or (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (let ((.cse23 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse18))) (let ((.cse24 (store .cse16 .cse17 (+ .cse5 .cse23)))) (let ((.cse22 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse24) |ULTIMATE.start_main_~a~0#1.base|) .cse15))) (let ((.cse20 (store .cse24 .cse14 (+ .cse5 .cse22 .cse23)))) (let ((.cse19 (store .cse20 .cse21 (+ .cse5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse20) |ULTIMATE.start_main_~a~0#1.base|) .cse12) .cse22 .cse23)))) (store .cse19 .cse4 (+ (select .cse20 .cse11) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse19) |ULTIMATE.start_main_~a~0#1.base|) .cse9)))))))) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)) (< 2147483647 .cse2)))) (or (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (let ((.cse29 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse18))) (let ((.cse27 (store .cse16 .cse17 (+ .cse5 .cse29)))) (let ((.cse26 (store .cse27 .cse28 (+ .cse5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse27) |ULTIMATE.start_main_~a~0#1.base|) .cse15) .cse29)))) (let ((.cse25 (store .cse26 .cse21 (+ (select .cse27 .cse14) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse26) |ULTIMATE.start_main_~a~0#1.base|) .cse12))))) (store .cse25 .cse4 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse25) |ULTIMATE.start_main_~a~0#1.base|) .cse9) (select .cse26 .cse11))))))) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)) .cse30)) .cse31) (or (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (let ((.cse34 (store .cse16 .cse36 (+ .cse5 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse18))))) (let ((.cse33 (store .cse34 .cse28 (+ .cse35 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse34) |ULTIMATE.start_main_~a~0#1.base|) .cse15))))) (let ((.cse32 (store .cse33 .cse21 (+ (select .cse34 .cse14) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse33) |ULTIMATE.start_main_~a~0#1.base|) .cse12))))) (store .cse32 .cse4 (+ (select .cse33 .cse11) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse32) |ULTIMATE.start_main_~a~0#1.base|) .cse9)))))) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)) .cse37)))) (or (let ((.cse44 (select .cse16 (+ .cse38 |c_ULTIMATE.start_main_~b~0#1.offset|))) (.cse45 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse38))) (and (or (and (or .cse1 (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (let ((.cse43 (store .cse16 .cse36 (+ .cse44 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse45))))) (let ((.cse40 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse43) |ULTIMATE.start_main_~a~0#1.base|) .cse15))) (let ((.cse42 (store .cse43 .cse14 (+ .cse35 .cse40)))) (let ((.cse41 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse42) |ULTIMATE.start_main_~a~0#1.base|) .cse12))) (let ((.cse39 (store .cse42 .cse11 (+ .cse35 .cse40 .cse41)))) (store .cse39 .cse4 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse39) |ULTIMATE.start_main_~a~0#1.base|) .cse9) .cse35 .cse40 .cse41))))))) |c_ULTIMATE.start_main_~b~0#1.offset|) 1))) (or .cse30 (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (let ((.cse48 (store .cse16 .cse36 (+ .cse44 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse45))))) (let ((.cse47 (store .cse48 .cse28 (+ .cse35 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse48) |ULTIMATE.start_main_~a~0#1.base|) .cse15))))) (let ((.cse46 (store .cse47 .cse21 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse47) |ULTIMATE.start_main_~a~0#1.base|) .cse12) (select .cse48 .cse14))))) (store .cse46 .cse4 (+ (select .cse47 .cse11) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse46) |ULTIMATE.start_main_~a~0#1.base|) .cse9)))))) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)))) .cse37) (or (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (let ((.cse50 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse45))) (let ((.cse54 (store .cse16 .cse17 (+ .cse44 .cse50)))) (let ((.cse51 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse54) |ULTIMATE.start_main_~a~0#1.base|) .cse15))) (let ((.cse53 (store .cse54 .cse14 (+ .cse44 .cse50 .cse51)))) (let ((.cse52 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse53) |ULTIMATE.start_main_~a~0#1.base|) .cse12))) (let ((.cse49 (store .cse53 .cse11 (+ .cse44 .cse50 .cse51 .cse52)))) (store .cse49 .cse4 (+ .cse44 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse49) |ULTIMATE.start_main_~a~0#1.base|) .cse9) .cse50 .cse51 .cse52)))))))) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)) .cse31))) (< 2147483647 .cse0))))))) is different from false [2023-11-06 22:50:53,873 WARN L861 $PredicateComparison]: unable to prove that (let ((.cse55 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse2 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse59 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296)) (.cse56 (* .cse55 8))) (let ((.cse0 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse16 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse17 (+ .cse56 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse57 (* .cse59 8)) (.cse58 (* 8 .cse2))) (let ((.cse1 (< .cse59 2147483648)) (.cse30 (< 2147483647 .cse59)) (.cse21 (+ .cse58 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse28 (+ .cse57 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse35 (select .cse16 .cse17)) (.cse36 (+ .cse56 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse37 (< 2147483647 .cse55)) (.cse4 (+ (* (mod (+ 3 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse9 (+ .cse58 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse11 (+ .cse58 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse12 (+ .cse57 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse14 (+ .cse57 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse15 (+ .cse56 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse31 (< .cse55 2147483648)) (.cse38 (* 8 .cse0))) (and (or (< .cse0 2147483648) (let ((.cse5 (select .cse16 (+ (- 34359738368) .cse38 |c_ULTIMATE.start_main_~b~0#1.offset|))) (.cse18 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse38))) (and (or (and (or .cse1 (and (or (< .cse2 2147483648) (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= 1 (select (let ((.cse8 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse18))) (let ((.cse13 (store .cse16 .cse17 (+ .cse5 .cse8)))) (let ((.cse7 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse13) |ULTIMATE.start_main_~a~0#1.base|) .cse15))) (let ((.cse10 (store .cse13 .cse14 (+ .cse5 .cse7 .cse8)))) (let ((.cse6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse10) |ULTIMATE.start_main_~a~0#1.base|) .cse12))) (let ((.cse3 (store .cse10 .cse11 (+ .cse5 .cse6 .cse7 .cse8)))) (store .cse3 .cse4 (+ .cse5 .cse6 .cse7 .cse8 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse3) |ULTIMATE.start_main_~a~0#1.base|) .cse9))))))))) |c_ULTIMATE.start_main_~b~0#1.offset|)))) (or (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (let ((.cse23 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse18))) (let ((.cse24 (store .cse16 .cse17 (+ .cse5 .cse23)))) (let ((.cse22 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse24) |ULTIMATE.start_main_~a~0#1.base|) .cse15))) (let ((.cse20 (store .cse24 .cse14 (+ .cse5 .cse22 .cse23)))) (let ((.cse19 (store .cse20 .cse21 (+ .cse5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse20) |ULTIMATE.start_main_~a~0#1.base|) .cse12) .cse22 .cse23)))) (store .cse19 .cse4 (+ (select .cse20 .cse11) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse19) |ULTIMATE.start_main_~a~0#1.base|) .cse9)))))))) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)) (< 2147483647 .cse2)))) (or (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (let ((.cse29 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse18))) (let ((.cse27 (store .cse16 .cse17 (+ .cse5 .cse29)))) (let ((.cse26 (store .cse27 .cse28 (+ .cse5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse27) |ULTIMATE.start_main_~a~0#1.base|) .cse15) .cse29)))) (let ((.cse25 (store .cse26 .cse21 (+ (select .cse27 .cse14) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse26) |ULTIMATE.start_main_~a~0#1.base|) .cse12))))) (store .cse25 .cse4 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse25) |ULTIMATE.start_main_~a~0#1.base|) .cse9) (select .cse26 .cse11))))))) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)) .cse30)) .cse31) (or (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (let ((.cse34 (store .cse16 .cse36 (+ .cse5 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse18))))) (let ((.cse33 (store .cse34 .cse28 (+ .cse35 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse34) |ULTIMATE.start_main_~a~0#1.base|) .cse15))))) (let ((.cse32 (store .cse33 .cse21 (+ (select .cse34 .cse14) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse33) |ULTIMATE.start_main_~a~0#1.base|) .cse12))))) (store .cse32 .cse4 (+ (select .cse33 .cse11) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse32) |ULTIMATE.start_main_~a~0#1.base|) .cse9)))))) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)) .cse37)))) (or (let ((.cse44 (select .cse16 (+ .cse38 |c_ULTIMATE.start_main_~b~0#1.offset|))) (.cse45 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse38))) (and (or (and (or .cse1 (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (let ((.cse43 (store .cse16 .cse36 (+ .cse44 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse45))))) (let ((.cse40 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse43) |ULTIMATE.start_main_~a~0#1.base|) .cse15))) (let ((.cse42 (store .cse43 .cse14 (+ .cse35 .cse40)))) (let ((.cse41 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse42) |ULTIMATE.start_main_~a~0#1.base|) .cse12))) (let ((.cse39 (store .cse42 .cse11 (+ .cse35 .cse40 .cse41)))) (store .cse39 .cse4 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse39) |ULTIMATE.start_main_~a~0#1.base|) .cse9) .cse35 .cse40 .cse41))))))) |c_ULTIMATE.start_main_~b~0#1.offset|) 1))) (or .cse30 (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (let ((.cse48 (store .cse16 .cse36 (+ .cse44 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse45))))) (let ((.cse47 (store .cse48 .cse28 (+ .cse35 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse48) |ULTIMATE.start_main_~a~0#1.base|) .cse15))))) (let ((.cse46 (store .cse47 .cse21 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse47) |ULTIMATE.start_main_~a~0#1.base|) .cse12) (select .cse48 .cse14))))) (store .cse46 .cse4 (+ (select .cse47 .cse11) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse46) |ULTIMATE.start_main_~a~0#1.base|) .cse9)))))) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)))) .cse37) (or (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (let ((.cse50 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse45))) (let ((.cse54 (store .cse16 .cse17 (+ .cse44 .cse50)))) (let ((.cse51 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse54) |ULTIMATE.start_main_~a~0#1.base|) .cse15))) (let ((.cse53 (store .cse54 .cse14 (+ .cse44 .cse50 .cse51)))) (let ((.cse52 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse53) |ULTIMATE.start_main_~a~0#1.base|) .cse12))) (let ((.cse49 (store .cse53 .cse11 (+ .cse44 .cse50 .cse51 .cse52)))) (store .cse49 .cse4 (+ .cse44 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse49) |ULTIMATE.start_main_~a~0#1.base|) .cse9) .cse50 .cse51 .cse52)))))))) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)) .cse31))) (< 2147483647 .cse0))))))) is different from true [2023-11-06 22:51:03,210 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse59 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (let ((.cse18 (mod (+ 3 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse55 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse56 (* .cse59 8))) (let ((.cse38 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse14 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse15 (+ .cse56 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse57 (* 8 .cse55)) (.cse58 (* .cse18 8))) (let ((.cse0 (< .cse59 2147483648)) (.cse31 (< 2147483647 .cse59)) (.cse30 (< .cse55 2147483648)) (.cse2 (+ (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 4) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse4 (+ (- 34359738368) .cse58 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse5 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse58)) (.cse6 (+ .cse58 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse7 (+ .cse57 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse9 (+ .cse57 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse10 (+ .cse57 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse35 (select .cse14 .cse15)) (.cse12 (+ .cse56 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse36 (+ .cse56 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse17 (< 2147483647 .cse55)) (.cse37 (* .cse38 8))) (and (or (let ((.cse16 (+ .cse37 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse13 (select .cse14 (+ .cse37 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))) (and (or .cse0 (and (or (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (let ((.cse11 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse16))) (let ((.cse8 (store .cse14 .cse15 (+ .cse11 .cse13)))) (let ((.cse3 (store .cse8 .cse10 (+ .cse11 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse8) |ULTIMATE.start_main_~a~0#1.base|) .cse12) .cse13)))) (let ((.cse1 (store .cse3 .cse6 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse3) |ULTIMATE.start_main_~a~0#1.base|) .cse7) (select .cse8 .cse9))))) (store .cse1 .cse2 (+ (select .cse3 .cse4) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse1) |ULTIMATE.start_main_~a~0#1.base|) .cse5))))))) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)) .cse17) (or (and (or (< .cse18 2147483648) (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (let ((.cse20 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse16))) (let ((.cse24 (store .cse14 .cse15 (+ .cse20 .cse13)))) (let ((.cse21 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse24) |ULTIMATE.start_main_~a~0#1.base|) .cse12))) (let ((.cse23 (store .cse24 .cse9 (+ .cse20 .cse21 .cse13)))) (let ((.cse22 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse23) |ULTIMATE.start_main_~a~0#1.base|) .cse7))) (let ((.cse19 (store .cse23 .cse4 (+ .cse20 .cse21 .cse22 .cse13)))) (store .cse19 .cse2 (+ .cse20 .cse21 .cse22 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse19) |ULTIMATE.start_main_~a~0#1.base|) .cse5) .cse13)))))))) |c_ULTIMATE.start_main_~b~0#1.offset|) 1))) (or (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (let ((.cse27 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse16))) (let ((.cse29 (store .cse14 .cse15 (+ .cse27 .cse13)))) (let ((.cse28 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse29) |ULTIMATE.start_main_~a~0#1.base|) .cse12))) (let ((.cse26 (store .cse29 .cse9 (+ .cse27 .cse28 .cse13)))) (let ((.cse25 (store .cse26 .cse6 (+ .cse27 .cse28 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse26) |ULTIMATE.start_main_~a~0#1.base|) .cse7) .cse13)))) (store .cse25 .cse2 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse25) |ULTIMATE.start_main_~a~0#1.base|) .cse5) (select .cse26 .cse4)))))))) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)) (< 2147483647 .cse18))) .cse30))) (or .cse31 (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= 1 (select (let ((.cse34 (store .cse14 .cse36 (+ (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse16) .cse13)))) (let ((.cse33 (store .cse34 .cse10 (+ .cse35 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse34) |ULTIMATE.start_main_~a~0#1.base|) .cse12))))) (let ((.cse32 (store .cse33 .cse6 (+ (select .cse34 .cse9) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse33) |ULTIMATE.start_main_~a~0#1.base|) .cse7))))) (store .cse32 .cse2 (+ (select .cse33 .cse4) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse32) |ULTIMATE.start_main_~a~0#1.base|) .cse5)))))) |c_ULTIMATE.start_main_~b~0#1.offset|)))))) (< .cse38 2147483648)) (or (< 2147483647 .cse38) (let ((.cse40 (select .cse14 (+ .cse37 |c_ULTIMATE.start_main_~b~0#1.offset|))) (.cse46 (+ .cse37 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (or (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (let ((.cse41 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse46))) (let ((.cse45 (store .cse14 .cse15 (+ .cse40 .cse41)))) (let ((.cse43 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse45) |ULTIMATE.start_main_~a~0#1.base|) .cse12))) (let ((.cse44 (store .cse45 .cse9 (+ .cse40 .cse41 .cse43)))) (let ((.cse42 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse44) |ULTIMATE.start_main_~a~0#1.base|) .cse7))) (let ((.cse39 (store .cse44 .cse4 (+ .cse40 .cse41 .cse42 .cse43)))) (store .cse39 .cse2 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse39) |ULTIMATE.start_main_~a~0#1.base|) .cse5) .cse40 .cse41 .cse42 .cse43)))))))) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)) .cse0) (or .cse31 (and (or .cse30 (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (let ((.cse51 (store .cse14 .cse36 (+ .cse40 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse46))))) (let ((.cse48 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse51) |ULTIMATE.start_main_~a~0#1.base|) .cse12))) (let ((.cse50 (store .cse51 .cse9 (+ .cse35 .cse48)))) (let ((.cse49 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse50) |ULTIMATE.start_main_~a~0#1.base|) .cse7))) (let ((.cse47 (store .cse50 .cse4 (+ .cse35 .cse48 .cse49)))) (store .cse47 .cse2 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse47) |ULTIMATE.start_main_~a~0#1.base|) .cse5) .cse35 .cse48 .cse49))))))) |c_ULTIMATE.start_main_~b~0#1.offset|) 1))) (or (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (let ((.cse54 (store .cse14 .cse36 (+ .cse40 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse46))))) (let ((.cse53 (store .cse54 .cse10 (+ .cse35 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse54) |ULTIMATE.start_main_~a~0#1.base|) .cse12))))) (let ((.cse52 (store .cse53 .cse6 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse53) |ULTIMATE.start_main_~a~0#1.base|) .cse7) (select .cse54 .cse9))))) (store .cse52 .cse2 (+ (select .cse53 .cse4) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse52) |ULTIMATE.start_main_~a~0#1.base|) .cse5)))))) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)) .cse17))))))))))) is different from false [2023-11-06 22:51:06,012 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:51:06,018 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30873694 treesize of output 28420454 [2023-11-06 22:51:40,850 WARN L293 SmtUtils]: Spent 34.82s on a formula simplification. DAG size of input: 2671 DAG size of output: 1007 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-06 22:51:43,174 INFO L322 Elim1Store]: treesize reduction 90, result has 1.1 percent of original size [2023-11-06 22:51:43,174 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 268 treesize of output 168 [2023-11-06 22:51:43,203 INFO L322 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2023-11-06 22:51:43,204 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 685 treesize of output 524 [2023-11-06 22:51:45,118 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:51:45,122 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 3753490 treesize of output 3438874 [2023-11-06 22:51:49,856 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 67 [2023-11-06 22:51:50,518 INFO L322 Elim1Store]: treesize reduction 164, result has 0.6 percent of original size [2023-11-06 22:51:50,519 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 23641 treesize of output 1 [2023-11-06 22:51:52,586 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:51:52,591 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19330778 treesize of output 17461474 [2023-11-06 22:52:02,022 WARN L293 SmtUtils]: Spent 9.42s on a formula simplification. DAG size of input: 2101 DAG size of output: 896 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-06 22:52:11,134 INFO L322 Elim1Store]: treesize reduction 134, result has 63.3 percent of original size [2023-11-06 22:52:11,146 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 2321389 treesize of output 1310240 [2023-11-06 22:53:33,879 WARN L293 SmtUtils]: Spent 1.38m on a formula simplification. DAG size of input: 6855 DAG size of output: 2969 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)