./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --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 0bb6ea6333d2c4e133ad252fe2bcbc17b832f383e2bb5defb402851de157204c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:20:40,206 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:20:40,334 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:20:40,342 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:20:40,343 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:20:40,384 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:20:40,385 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:20:40,386 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:20:40,387 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:20:40,393 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:20:40,394 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:20:40,395 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:20:40,396 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:20:40,398 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:20:40,398 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:20:40,399 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:20:40,399 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:20:40,400 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:20:40,400 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:20:40,401 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:20:40,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:20:40,402 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:20:40,403 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:20:40,404 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:20:40,404 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:20:40,405 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:20:40,406 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:20:40,407 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:20:40,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:20:40,408 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:20:40,409 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:20:40,410 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:20:40,410 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:20:40,411 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:20:40,411 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:20:40,411 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:20:40,412 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:20:40,412 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:20:40,413 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:20:40,413 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_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bb6ea6333d2c4e133ad252fe2bcbc17b832f383e2bb5defb402851de157204c [2023-11-12 02:20:40,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:20:40,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:20:40,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:20:40,860 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:20:40,860 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:20:40,862 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound50.c [2023-11-12 02:20:44,086 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:20:44,317 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:20:44,318 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound50.c [2023-11-12 02:20:44,327 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/data/76ba577c3/002e8539c6ac4aacbb33485f0b1137f2/FLAG590244784 [2023-11-12 02:20:44,344 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/data/76ba577c3/002e8539c6ac4aacbb33485f0b1137f2 [2023-11-12 02:20:44,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:20:44,349 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:20:44,351 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:20:44,351 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:20:44,357 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:20:44,358 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:20:44" (1/1) ... [2023-11-12 02:20:44,360 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@336655e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:44, skipping insertion in model container [2023-11-12 02:20:44,360 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:20:44" (1/1) ... [2023-11-12 02:20:44,385 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:20:44,576 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_aa2b7bbe-d969-49dc-b6bf-8e18db672887/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound50.c[597,610] [2023-11-12 02:20:44,623 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:20:44,637 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:20:44,656 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_aa2b7bbe-d969-49dc-b6bf-8e18db672887/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound50.c[597,610] [2023-11-12 02:20:44,682 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:20:44,696 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:20:44,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:44 WrapperNode [2023-11-12 02:20:44,697 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:20:44,699 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:20:44,699 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:20:44,699 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:20:44,708 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:44" (1/1) ... [2023-11-12 02:20:44,716 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:44" (1/1) ... [2023-11-12 02:20:44,735 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2023-11-12 02:20:44,735 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:20:44,736 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:20:44,736 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:20:44,736 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:20:44,744 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:44" (1/1) ... [2023-11-12 02:20:44,745 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:44" (1/1) ... [2023-11-12 02:20:44,746 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:44" (1/1) ... [2023-11-12 02:20:44,747 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:44" (1/1) ... [2023-11-12 02:20:44,750 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:44" (1/1) ... [2023-11-12 02:20:44,753 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:44" (1/1) ... [2023-11-12 02:20:44,754 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:44" (1/1) ... [2023-11-12 02:20:44,755 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:44" (1/1) ... [2023-11-12 02:20:44,757 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:20:44,758 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:20:44,758 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:20:44,759 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:20:44,759 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:44" (1/1) ... [2023-11-12 02:20:44,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:20:44,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:44,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:20:44,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:20:44,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:20:44,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:20:44,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:20:44,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:20:44,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 02:20:44,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 02:20:44,897 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:20:44,900 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:20:45,054 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:20:45,061 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:20:45,061 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:20:45,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:20:45 BoogieIcfgContainer [2023-11-12 02:20:45,064 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:20:45,067 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:20:45,067 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:20:45,071 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:20:45,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:20:44" (1/3) ... [2023-11-12 02:20:45,073 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@234d9e25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:20:45, skipping insertion in model container [2023-11-12 02:20:45,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:44" (2/3) ... [2023-11-12 02:20:45,074 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@234d9e25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:20:45, skipping insertion in model container [2023-11-12 02:20:45,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:20:45" (3/3) ... [2023-11-12 02:20:45,076 INFO L112 eAbstractionObserver]: Analyzing ICFG bresenham-ll_unwindbound50.c [2023-11-12 02:20:45,099 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:20:45,100 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:20:45,211 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:20:45,225 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3caef47, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:20:45,225 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:20:45,237 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:20:45,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 02:20:45,243 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:45,244 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:45,244 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:20:45,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:45,250 INFO L85 PathProgramCache]: Analyzing trace with hash 180444447, now seen corresponding path program 1 times [2023-11-12 02:20:45,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:45,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463489407] [2023-11-12 02:20:45,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:45,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:45,383 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:45,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [30436727] [2023-11-12 02:20:45,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:45,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:45,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:45,387 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:45,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:20:45,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:45,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-12 02:20:45,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:45,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:45,715 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:20:45,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:45,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463489407] [2023-11-12 02:20:45,716 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:45,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30436727] [2023-11-12 02:20:45,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30436727] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:45,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:45,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:20:45,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331089624] [2023-11-12 02:20:45,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:45,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:20:45,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:45,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:20:45,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:20:45,765 INFO L87 Difference]: Start difference. First operand has 20 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:20:45,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:45,964 INFO L93 Difference]: Finished difference Result 52 states and 72 transitions. [2023-11-12 02:20:45,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:20:45,967 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-12 02:20:45,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:45,977 INFO L225 Difference]: With dead ends: 52 [2023-11-12 02:20:45,977 INFO L226 Difference]: Without dead ends: 25 [2023-11-12 02:20:45,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:20:45,985 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 14 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:45,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 62 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:20:46,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-11-12 02:20:46,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2023-11-12 02:20:46,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:20:46,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2023-11-12 02:20:46,034 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 8 [2023-11-12 02:20:46,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:46,035 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2023-11-12 02:20:46,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:20:46,036 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2023-11-12 02:20:46,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 02:20:46,037 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:46,037 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:46,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-12 02:20:46,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:46,244 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:20:46,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:46,245 INFO L85 PathProgramCache]: Analyzing trace with hash 2080570626, now seen corresponding path program 1 times [2023-11-12 02:20:46,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:46,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103589946] [2023-11-12 02:20:46,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:46,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:46,269 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:46,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1051422059] [2023-11-12 02:20:46,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:46,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:46,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:46,271 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:46,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:20:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:46,348 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-12 02:20:46,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:46,645 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:46,645 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:20:46,810 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 02:20:46,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:46,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103589946] [2023-11-12 02:20:46,811 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:46,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051422059] [2023-11-12 02:20:46,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051422059] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:20:46,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:20:46,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2023-11-12 02:20:46,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453061433] [2023-11-12 02:20:46,812 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:20:46,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-12 02:20:46,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:46,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-12 02:20:46,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:20:46,816 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 13 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:20:47,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:47,289 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2023-11-12 02:20:47,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-12 02:20:47,291 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2023-11-12 02:20:47,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:47,292 INFO L225 Difference]: With dead ends: 41 [2023-11-12 02:20:47,292 INFO L226 Difference]: Without dead ends: 34 [2023-11-12 02:20:47,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2023-11-12 02:20:47,295 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 21 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:47,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 104 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:20:47,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-12 02:20:47,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2023-11-12 02:20:47,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-12 02:20:47,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2023-11-12 02:20:47,309 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 18 [2023-11-12 02:20:47,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:47,309 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2023-11-12 02:20:47,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:20:47,310 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2023-11-12 02:20:47,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 02:20:47,312 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:47,312 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:47,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:47,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:47,518 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:20:47,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:47,519 INFO L85 PathProgramCache]: Analyzing trace with hash 680664555, now seen corresponding path program 1 times [2023-11-12 02:20:47,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:47,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247462192] [2023-11-12 02:20:47,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:47,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:47,536 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:47,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [248796527] [2023-11-12 02:20:47,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:47,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:47,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:47,543 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:47,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:20:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:47,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:20:47,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:47,647 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:47,648 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:20:47,691 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:47,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:47,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247462192] [2023-11-12 02:20:47,692 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:47,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248796527] [2023-11-12 02:20:47,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248796527] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:20:47,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:20:47,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2023-11-12 02:20:47,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610812595] [2023-11-12 02:20:47,693 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:20:47,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:20:47,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:47,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:20:47,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:20:47,696 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:20:47,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:47,775 INFO L93 Difference]: Finished difference Result 73 states and 81 transitions. [2023-11-12 02:20:47,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:20:47,775 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2023-11-12 02:20:47,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:47,777 INFO L225 Difference]: With dead ends: 73 [2023-11-12 02:20:47,777 INFO L226 Difference]: Without dead ends: 67 [2023-11-12 02:20:47,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:20:47,780 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 26 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:47,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 78 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:20:47,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-12 02:20:47,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 55. [2023-11-12 02:20:47,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 44 states have (on average 1.1818181818181819) internal successors, (52), 44 states have internal predecessors, (52), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-12 02:20:47,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 63 transitions. [2023-11-12 02:20:47,799 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 63 transitions. Word has length 19 [2023-11-12 02:20:47,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:47,800 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 63 transitions. [2023-11-12 02:20:47,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:20:47,800 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 63 transitions. [2023-11-12 02:20:47,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-12 02:20:47,802 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:47,802 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:47,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:48,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:48,008 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:20:48,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:48,009 INFO L85 PathProgramCache]: Analyzing trace with hash 713886481, now seen corresponding path program 1 times [2023-11-12 02:20:48,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:48,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506397057] [2023-11-12 02:20:48,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:48,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:48,047 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:48,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [7165530] [2023-11-12 02:20:48,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:48,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:48,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:48,060 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:48,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:20:48,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:48,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-12 02:20:48,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:48,502 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 02:20:48,502 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:20:49,049 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 02:20:49,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:49,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506397057] [2023-11-12 02:20:49,050 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:49,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7165530] [2023-11-12 02:20:49,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7165530] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:20:49,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:20:49,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 23 [2023-11-12 02:20:49,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70083753] [2023-11-12 02:20:49,051 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:20:49,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-12 02:20:49,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:49,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-12 02:20:49,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2023-11-12 02:20:49,054 INFO L87 Difference]: Start difference. First operand 55 states and 63 transitions. Second operand has 23 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 20 states have internal predecessors, (34), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-12 02:20:49,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:49,956 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions. [2023-11-12 02:20:49,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-12 02:20:49,957 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 20 states have internal predecessors, (34), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 25 [2023-11-12 02:20:49,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:49,958 INFO L225 Difference]: With dead ends: 65 [2023-11-12 02:20:49,959 INFO L226 Difference]: Without dead ends: 57 [2023-11-12 02:20:49,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=261, Invalid=1299, Unknown=0, NotChecked=0, Total=1560 [2023-11-12 02:20:49,961 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 52 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:49,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 103 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:20:49,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-12 02:20:49,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2023-11-12 02:20:49,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 40 states have (on average 1.125) internal successors, (45), 40 states have internal predecessors, (45), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-12 02:20:49,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2023-11-12 02:20:49,981 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 25 [2023-11-12 02:20:49,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:49,982 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2023-11-12 02:20:49,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 20 states have internal predecessors, (34), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-12 02:20:49,982 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2023-11-12 02:20:49,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-12 02:20:49,984 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:49,984 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:49,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:50,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-12 02:20:50,190 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:20:50,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:50,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1582515168, now seen corresponding path program 1 times [2023-11-12 02:20:50,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:50,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061855819] [2023-11-12 02:20:50,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:50,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:50,210 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:50,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1540723435] [2023-11-12 02:20:50,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:50,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:50,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:50,212 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:50,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:20:50,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:50,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-12 02:20:50,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:50,425 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 8 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:50,426 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:20:50,545 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 8 proven. 44 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-12 02:20:50,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:50,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061855819] [2023-11-12 02:20:50,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:50,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540723435] [2023-11-12 02:20:50,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540723435] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:20:50,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:20:50,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-11-12 02:20:50,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329297175] [2023-11-12 02:20:50,547 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:20:50,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-12 02:20:50,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:50,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-12 02:20:50,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:20:50,549 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:20:50,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:50,753 INFO L93 Difference]: Finished difference Result 116 states and 131 transitions. [2023-11-12 02:20:50,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-12 02:20:50,753 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 49 [2023-11-12 02:20:50,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:50,756 INFO L225 Difference]: With dead ends: 116 [2023-11-12 02:20:50,756 INFO L226 Difference]: Without dead ends: 110 [2023-11-12 02:20:50,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=322, Unknown=0, NotChecked=0, Total=506 [2023-11-12 02:20:50,758 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 50 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:50,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 122 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:20:50,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-12 02:20:50,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2023-11-12 02:20:50,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 88 states have (on average 1.125) internal successors, (99), 88 states have internal predecessors, (99), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-12 02:20:50,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 120 transitions. [2023-11-12 02:20:50,795 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 120 transitions. Word has length 49 [2023-11-12 02:20:50,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:50,795 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 120 transitions. [2023-11-12 02:20:50,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:20:50,796 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 120 transitions. [2023-11-12 02:20:50,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-12 02:20:50,800 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:50,800 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:50,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-12 02:20:51,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:51,006 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:20:51,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:51,006 INFO L85 PathProgramCache]: Analyzing trace with hash 297311502, now seen corresponding path program 2 times [2023-11-12 02:20:51,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:51,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062748101] [2023-11-12 02:20:51,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:51,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:51,029 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:51,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [891306931] [2023-11-12 02:20:51,029 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:20:51,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:51,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:51,030 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:51,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 02:20:51,139 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 02:20:51,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:20:51,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-12 02:20:51,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:51,383 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 20 proven. 470 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:51,384 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:20:51,805 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 20 proven. 290 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-12 02:20:51,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:51,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062748101] [2023-11-12 02:20:51,806 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:51,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891306931] [2023-11-12 02:20:51,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891306931] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:20:51,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:20:51,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 26 [2023-11-12 02:20:51,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077544679] [2023-11-12 02:20:51,807 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:20:51,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-12 02:20:51,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:51,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-12 02:20:51,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=369, Unknown=0, NotChecked=0, Total=650 [2023-11-12 02:20:51,810 INFO L87 Difference]: Start difference. First operand 110 states and 120 transitions. Second operand has 26 states, 26 states have (on average 5.576923076923077) internal successors, (145), 26 states have internal predecessors, (145), 21 states have call successors, (21), 12 states have call predecessors, (21), 11 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-12 02:20:52,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:52,421 INFO L93 Difference]: Finished difference Result 236 states and 269 transitions. [2023-11-12 02:20:52,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-11-12 02:20:52,421 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.576923076923077) internal successors, (145), 26 states have internal predecessors, (145), 21 states have call successors, (21), 12 states have call predecessors, (21), 11 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 109 [2023-11-12 02:20:52,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:52,429 INFO L225 Difference]: With dead ends: 236 [2023-11-12 02:20:52,429 INFO L226 Difference]: Without dead ends: 230 [2023-11-12 02:20:52,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=796, Invalid=1366, Unknown=0, NotChecked=0, Total=2162 [2023-11-12 02:20:52,432 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 136 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:52,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 211 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:20:52,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2023-11-12 02:20:52,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2023-11-12 02:20:52,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 184 states have (on average 1.125) internal successors, (207), 184 states have internal predecessors, (207), 23 states have call successors, (23), 23 states have call predecessors, (23), 22 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-12 02:20:52,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 252 transitions. [2023-11-12 02:20:52,517 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 252 transitions. Word has length 109 [2023-11-12 02:20:52,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:52,519 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 252 transitions. [2023-11-12 02:20:52,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.576923076923077) internal successors, (145), 26 states have internal predecessors, (145), 21 states have call successors, (21), 12 states have call predecessors, (21), 11 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-12 02:20:52,520 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 252 transitions. [2023-11-12 02:20:52,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-11-12 02:20:52,534 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:52,535 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:52,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:52,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:52,741 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:20:52,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:52,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1294150550, now seen corresponding path program 3 times [2023-11-12 02:20:52,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:52,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438704208] [2023-11-12 02:20:52,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:52,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:52,769 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:52,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1888655777] [2023-11-12 02:20:52,770 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 02:20:52,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:52,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:52,771 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:52,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-12 02:20:52,869 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-12 02:20:52,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:20:52,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-12 02:20:52,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:53,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2398 backedges. 234 proven. 1 refuted. 0 times theorem prover too weak. 2163 trivial. 0 not checked. [2023-11-12 02:20:53,299 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:20:53,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2398 backedges. 106 proven. 129 refuted. 0 times theorem prover too weak. 2163 trivial. 0 not checked. [2023-11-12 02:20:53,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:53,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438704208] [2023-11-12 02:20:53,757 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:53,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888655777] [2023-11-12 02:20:53,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888655777] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:20:53,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:20:53,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2023-11-12 02:20:53,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099114915] [2023-11-12 02:20:53,758 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:20:53,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-12 02:20:53,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:53,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-12 02:20:53,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2023-11-12 02:20:53,760 INFO L87 Difference]: Start difference. First operand 230 states and 252 transitions. Second operand has 18 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 17 states have internal predecessors, (34), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-12 02:20:54,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:54,073 INFO L93 Difference]: Finished difference Result 449 states and 492 transitions. [2023-11-12 02:20:54,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:20:54,074 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 17 states have internal predecessors, (34), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 229 [2023-11-12 02:20:54,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:54,078 INFO L225 Difference]: With dead ends: 449 [2023-11-12 02:20:54,079 INFO L226 Difference]: Without dead ends: 443 [2023-11-12 02:20:54,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 439 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2023-11-12 02:20:54,080 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 24 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:54,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 92 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:20:54,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2023-11-12 02:20:54,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 440. [2023-11-12 02:20:54,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 352 states have (on average 1.125) internal successors, (396), 352 states have internal predecessors, (396), 44 states have call successors, (44), 44 states have call predecessors, (44), 43 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-11-12 02:20:54,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 483 transitions. [2023-11-12 02:20:54,220 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 483 transitions. Word has length 229 [2023-11-12 02:20:54,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:54,222 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 483 transitions. [2023-11-12 02:20:54,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 17 states have internal predecessors, (34), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-12 02:20:54,222 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 483 transitions. [2023-11-12 02:20:54,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-11-12 02:20:54,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:54,228 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 22, 21, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:54,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:54,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:54,436 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:20:54,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:54,437 INFO L85 PathProgramCache]: Analyzing trace with hash -614092180, now seen corresponding path program 1 times [2023-11-12 02:20:54,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:54,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904331550] [2023-11-12 02:20:54,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:54,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:54,469 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:54,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [385766270] [2023-11-12 02:20:54,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:54,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:54,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:54,471 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:54,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-12 02:20:54,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:54,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 47 conjunts are in the unsatisfiable core [2023-11-12 02:20:54,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:55,367 INFO L134 CoverageAnalysis]: Checked inductivity of 2398 backedges. 44 proven. 2354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:55,367 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:20:56,644 INFO L134 CoverageAnalysis]: Checked inductivity of 2398 backedges. 44 proven. 1430 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-12 02:20:56,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:56,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904331550] [2023-11-12 02:20:56,645 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:56,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385766270] [2023-11-12 02:20:56,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385766270] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:20:56,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:20:56,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 26] total 50 [2023-11-12 02:20:56,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665919191] [2023-11-12 02:20:56,646 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:20:56,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-12 02:20:56,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:56,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-12 02:20:56,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1133, Invalid=1317, Unknown=0, NotChecked=0, Total=2450 [2023-11-12 02:20:56,651 INFO L87 Difference]: Start difference. First operand 440 states and 483 transitions. Second operand has 50 states, 50 states have (on average 6.02) internal successors, (301), 50 states have internal predecessors, (301), 45 states have call successors, (45), 24 states have call predecessors, (45), 23 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-12 02:20:58,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:58,592 INFO L93 Difference]: Finished difference Result 929 states and 1043 transitions. [2023-11-12 02:20:58,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-11-12 02:20:58,593 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 6.02) internal successors, (301), 50 states have internal predecessors, (301), 45 states have call successors, (45), 24 states have call predecessors, (45), 23 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Word has length 229 [2023-11-12 02:20:58,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:58,599 INFO L225 Difference]: With dead ends: 929 [2023-11-12 02:20:58,599 INFO L226 Difference]: Without dead ends: 923 [2023-11-12 02:20:58,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1288 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=3316, Invalid=5614, Unknown=0, NotChecked=0, Total=8930 [2023-11-12 02:20:58,605 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 338 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:58,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 374 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:20:58,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2023-11-12 02:20:58,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 920. [2023-11-12 02:20:58,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 736 states have (on average 1.125) internal successors, (828), 736 states have internal predecessors, (828), 92 states have call successors, (92), 92 states have call predecessors, (92), 91 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2023-11-12 02:20:58,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1011 transitions. [2023-11-12 02:20:58,783 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1011 transitions. Word has length 229 [2023-11-12 02:20:58,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:58,784 INFO L495 AbstractCegarLoop]: Abstraction has 920 states and 1011 transitions. [2023-11-12 02:20:58,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 6.02) internal successors, (301), 50 states have internal predecessors, (301), 45 states have call successors, (45), 24 states have call predecessors, (45), 23 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-12 02:20:58,785 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1011 transitions. [2023-11-12 02:20:58,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2023-11-12 02:20:58,796 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:58,796 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 46, 46, 45, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:58,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:59,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:59,003 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:20:59,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:59,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1651100380, now seen corresponding path program 2 times [2023-11-12 02:20:59,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:59,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24527649] [2023-11-12 02:20:59,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:59,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:59,060 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:59,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1117062542] [2023-11-12 02:20:59,061 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:20:59,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:59,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:59,063 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:59,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-12 02:20:59,400 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 02:20:59,400 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:20:59,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 95 conjunts are in the unsatisfiable core [2023-11-12 02:20:59,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:21:01,356 INFO L134 CoverageAnalysis]: Checked inductivity of 10534 backedges. 92 proven. 10442 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:21:01,357 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:21:03,168 INFO L134 CoverageAnalysis]: Checked inductivity of 10534 backedges. 92 proven. 6302 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2023-11-12 02:21:03,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:21:03,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24527649] [2023-11-12 02:21:03,169 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:21:03,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117062542] [2023-11-12 02:21:03,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117062542] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:21:03,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:21:03,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 50] total 54 [2023-11-12 02:21:03,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302714540] [2023-11-12 02:21:03,170 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:21:03,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2023-11-12 02:21:03,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:21:03,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2023-11-12 02:21:03,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1331, Invalid=1531, Unknown=0, NotChecked=0, Total=2862 [2023-11-12 02:21:03,176 INFO L87 Difference]: Start difference. First operand 920 states and 1011 transitions. Second operand has 54 states, 54 states have (on average 7.388888888888889) internal successors, (399), 54 states have internal predecessors, (399), 50 states have call successors, (93), 48 states have call predecessors, (93), 47 states have return successors, (92), 49 states have call predecessors, (92), 49 states have call successors, (92) [2023-11-12 02:21:05,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:21:05,326 INFO L93 Difference]: Finished difference Result 1009 states and 1111 transitions. [2023-11-12 02:21:05,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2023-11-12 02:21:05,327 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 7.388888888888889) internal successors, (399), 54 states have internal predecessors, (399), 50 states have call successors, (93), 48 states have call predecessors, (93), 47 states have return successors, (92), 49 states have call predecessors, (92), 49 states have call successors, (92) Word has length 469 [2023-11-12 02:21:05,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:21:05,335 INFO L225 Difference]: With dead ends: 1009 [2023-11-12 02:21:05,335 INFO L226 Difference]: Without dead ends: 1003 [2023-11-12 02:21:05,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 985 GetRequests, 840 SyntacticMatches, 44 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2350 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=3926, Invalid=6580, Unknown=0, NotChecked=0, Total=10506 [2023-11-12 02:21:05,341 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 209 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:21:05,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 397 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 02:21:05,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2023-11-12 02:21:05,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 1000. [2023-11-12 02:21:05,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1000 states, 800 states have (on average 1.125) internal successors, (900), 800 states have internal predecessors, (900), 100 states have call successors, (100), 100 states have call predecessors, (100), 99 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-12 02:21:05,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1099 transitions. [2023-11-12 02:21:05,508 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1099 transitions. Word has length 469 [2023-11-12 02:21:05,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:21:05,510 INFO L495 AbstractCegarLoop]: Abstraction has 1000 states and 1099 transitions. [2023-11-12 02:21:05,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 7.388888888888889) internal successors, (399), 54 states have internal predecessors, (399), 50 states have call successors, (93), 48 states have call predecessors, (93), 47 states have return successors, (92), 49 states have call predecessors, (92), 49 states have call successors, (92) [2023-11-12 02:21:05,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1099 transitions. [2023-11-12 02:21:05,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2023-11-12 02:21:05,523 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:05,524 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 50, 50, 50, 50, 50, 50, 50, 49, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:21:05,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-12 02:21:05,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:21:05,732 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:21:05,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:05,732 INFO L85 PathProgramCache]: Analyzing trace with hash -234739816, now seen corresponding path program 3 times [2023-11-12 02:21:05,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:21:05,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370349665] [2023-11-12 02:21:05,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:05,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:21:05,776 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:21:05,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1567782292] [2023-11-12 02:21:05,777 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 02:21:05,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:21:05,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:21:05,778 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:21:05,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-12 02:21:06,456 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 51 check-sat command(s) [2023-11-12 02:21:06,456 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-11-12 02:21:06,456 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:21:06,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:21:06,861 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:21:06,861 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:21:06,862 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:21:06,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-12 02:21:07,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-12 02:21:07,079 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1] [2023-11-12 02:21:07,084 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:21:07,174 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,177 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,178 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,180 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,182 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,184 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,186 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,188 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,189 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,191 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,192 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,194 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,195 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,197 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,198 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,199 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,201 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,202 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,203 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,204 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,205 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,206 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,208 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,209 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,210 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,211 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,212 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,213 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,214 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,215 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,216 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,217 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,218 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,219 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,220 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,221 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,222 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,223 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,225 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,226 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,226 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,227 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,228 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,229 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,230 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,231 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,232 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,232 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,233 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,234 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,235 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:21:07 BoogieIcfgContainer [2023-11-12 02:21:07,300 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:21:07,301 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:21:07,301 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:21:07,301 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:21:07,302 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:20:45" (3/4) ... [2023-11-12 02:21:07,303 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-12 02:21:07,331 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,333 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,333 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,334 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,334 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,335 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,337 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,338 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,338 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,339 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,339 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,341 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,343 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,343 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,343 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,346 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,347 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,347 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,347 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,348 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,348 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,349 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,349 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,350 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,350 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,350 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,351 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,351 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,352 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,352 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,353 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,353 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,353 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,354 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,355 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,355 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,356 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,356 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,356 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,357 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,357 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,358 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,358 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,358 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,359 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,360 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,361 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,361 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,361 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,362 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,362 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-12 02:21:07,519 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:21:07,520 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:21:07,520 INFO L158 Benchmark]: Toolchain (without parser) took 23171.45ms. Allocated memory was 163.6MB in the beginning and 285.2MB in the end (delta: 121.6MB). Free memory was 118.8MB in the beginning and 158.4MB in the end (delta: -39.6MB). Peak memory consumption was 83.9MB. Max. memory is 16.1GB. [2023-11-12 02:21:07,521 INFO L158 Benchmark]: CDTParser took 0.55ms. Allocated memory is still 113.2MB. Free memory was 81.5MB in the beginning and 81.4MB in the end (delta: 27.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:21:07,521 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.73ms. Allocated memory is still 163.6MB. Free memory was 118.8MB in the beginning and 108.0MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 02:21:07,522 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.64ms. Allocated memory is still 163.6MB. Free memory was 108.0MB in the beginning and 106.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:21:07,522 INFO L158 Benchmark]: Boogie Preprocessor took 21.61ms. Allocated memory is still 163.6MB. Free memory was 106.6MB in the beginning and 105.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:21:07,523 INFO L158 Benchmark]: RCFGBuilder took 305.61ms. Allocated memory is still 163.6MB. Free memory was 105.5MB in the beginning and 95.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 02:21:07,523 INFO L158 Benchmark]: TraceAbstraction took 22233.69ms. Allocated memory was 163.6MB in the beginning and 285.2MB in the end (delta: 121.6MB). Free memory was 94.5MB in the beginning and 178.3MB in the end (delta: -83.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-12 02:21:07,524 INFO L158 Benchmark]: Witness Printer took 218.80ms. Allocated memory is still 285.2MB. Free memory was 178.3MB in the beginning and 158.4MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:21:07,527 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55ms. Allocated memory is still 113.2MB. Free memory was 81.5MB in the beginning and 81.4MB in the end (delta: 27.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.73ms. Allocated memory is still 163.6MB. Free memory was 118.8MB in the beginning and 108.0MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.64ms. Allocated memory is still 163.6MB. Free memory was 108.0MB in the beginning and 106.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.61ms. Allocated memory is still 163.6MB. Free memory was 106.6MB in the beginning and 105.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 305.61ms. Allocated memory is still 163.6MB. Free memory was 105.5MB in the beginning and 95.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 22233.69ms. Allocated memory was 163.6MB in the beginning and 285.2MB in the end (delta: 121.6MB). Free memory was 94.5MB in the beginning and 178.3MB in the end (delta: -83.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 218.80ms. Allocated memory is still 285.2MB. Free memory was 178.3MB in the beginning and 158.4MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 16]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L21] int counter = 0; VAL [counter=0] [L23] int X, Y; [L24] long long x, y, v, xy, yx; [L25] X = __VERIFIER_nondet_int() [L26] Y = __VERIFIER_nondet_int() [L27] v = ((long long) 2 * Y) - X [L28] y = 0 [L29] x = 0 VAL [X=99, Y=1, counter=0, v=-97, x=0, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=1, v=-97, x=0, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=1, v=-97, x=0, x=0, x=0, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=1] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=1, v=-97, x=0, x=0, x=0, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=1, v=-97, x=0, x=0, x=0, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=1, v=-95, x=0, x=0, x=0, y=0] [L45] x++ VAL [X=99, Y=1, counter=1, v=-95, x=0, x=0, x=1, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=2, v=-95, x=0, x=0, x=1, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=2, v=-95, x=0, x=1, x=1, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=2] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=2, v=-95, x=0, x=1, x=1, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=2, v=-95, x=0, x=1, x=1, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=2, v=-93, x=0, x=1, x=1, y=0] [L45] x++ VAL [X=99, Y=1, counter=2, v=-93, x=0, x=1, x=2, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=3, v=-93, x=0, x=1, x=2, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=3, v=-93, x=0, x=2, x=2, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=3] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=3] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=3, v=-93, x=0, x=2, x=2, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=3, v=-93, x=0, x=2, x=2, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=3, v=-91, x=0, x=2, x=2, y=0] [L45] x++ VAL [X=99, Y=1, counter=3, v=-91, x=0, x=2, x=3, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=4, v=-91, x=0, x=2, x=3, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=4, v=-91, x=0, x=3, x=3, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=4] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=4] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=4, v=-91, x=0, x=3, x=3, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=4, v=-91, x=0, x=3, x=3, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=4, v=-89, x=0, x=3, x=3, y=0] [L45] x++ VAL [X=99, Y=1, counter=4, v=-89, x=0, x=3, x=4, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=5, v=-89, x=0, x=3, x=4, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=5, v=-89, x=0, x=4, x=4, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=5] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=5] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=5, v=-89, x=0, x=4, x=4, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=5, v=-89, x=0, x=4, x=4, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=5, v=-87, x=0, x=4, x=4, y=0] [L45] x++ VAL [X=99, Y=1, counter=5, v=-87, x=0, x=4, x=5, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=6, v=-87, x=0, x=4, x=5, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=6, v=-87, x=0, x=5, x=5, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=6] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=6] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=6, v=-87, x=0, x=5, x=5, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=6, v=-87, x=0, x=5, x=5, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=6, v=-85, x=0, x=5, x=5, y=0] [L45] x++ VAL [X=99, Y=1, counter=6, v=-85, x=0, x=5, x=6, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=7, v=-85, x=0, x=5, x=6, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=7, v=-85, x=0, x=6, x=6, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=7] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=7] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=7, v=-85, x=0, x=6, x=6, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=7, v=-85, x=0, x=6, x=6, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=7, v=-83, x=0, x=6, x=6, y=0] [L45] x++ VAL [X=99, Y=1, counter=7, v=-83, x=0, x=6, x=7, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=8, v=-83, x=0, x=6, x=7, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=8, v=-83, x=0, x=7, x=7, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=8] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=8] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=8, v=-83, x=0, x=7, x=7, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=8, v=-83, x=0, x=7, x=7, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=8, v=-81, x=0, x=7, x=7, y=0] [L45] x++ VAL [X=99, Y=1, counter=8, v=-81, x=0, x=7, x=8, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=9, v=-81, x=0, x=7, x=8, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=9, v=-81, x=0, x=8, x=8, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=9] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=9] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=9, v=-81, x=0, x=8, x=8, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=9, v=-81, x=0, x=8, x=8, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=9, v=-79, x=0, x=8, x=8, y=0] [L45] x++ VAL [X=99, Y=1, counter=9, v=-79, x=0, x=8, x=9, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=10, v=-79, x=0, x=8, x=9, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=10, v=-79, x=0, x=9, x=9, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=10] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=10] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=10, v=-79, x=0, x=9, x=9, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=10, v=-79, x=0, x=9, x=9, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=10, v=-77, x=0, x=9, x=9, y=0] [L45] x++ VAL [X=99, Y=1, counter=10, v=-77, x=0, x=10, x=9, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=11, v=-77, x=0, x=10, x=9, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=11, v=-77, x=0, x=10, x=10, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=11] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=11] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=11, v=-77, x=0, x=10, x=10, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=11, v=-77, x=0, x=10, x=10, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=11, v=-75, x=0, x=10, x=10, y=0] [L45] x++ VAL [X=99, Y=1, counter=11, v=-75, x=0, x=10, x=11, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=12, v=-75, x=0, x=10, x=11, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=12, v=-75, x=0, x=11, x=11, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=12] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=12] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=12, v=-75, x=0, x=11, x=11, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=12, v=-75, x=0, x=11, x=11, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=12, v=-73, x=0, x=11, x=11, y=0] [L45] x++ VAL [X=99, Y=1, counter=12, v=-73, x=0, x=11, x=12, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=13, v=-73, x=0, x=11, x=12, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=13, v=-73, x=0, x=12, x=12, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=13] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=13] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=13, v=-73, x=0, x=12, x=12, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=13, v=-73, x=0, x=12, x=12, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=13, v=-71, x=0, x=12, x=12, y=0] [L45] x++ VAL [X=99, Y=1, counter=13, v=-71, x=0, x=12, x=13, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=14, v=-71, x=0, x=12, x=13, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=14, v=-71, x=0, x=13, x=13, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=14] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=14] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=14, v=-71, x=0, x=13, x=13, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=14, v=-71, x=0, x=13, x=13, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=14, v=-69, x=0, x=13, x=13, y=0] [L45] x++ VAL [X=99, Y=1, counter=14, v=-69, x=0, x=13, x=14, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=15, v=-69, x=0, x=13, x=14, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=15, v=-69, x=0, x=14, x=14, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=15] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=15] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=15, v=-69, x=0, x=14, x=14, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=15, v=-69, x=0, x=14, x=14, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=15, v=-67, x=0, x=14, x=14, y=0] [L45] x++ VAL [X=99, Y=1, counter=15, v=-67, x=0, x=14, x=15, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=16, v=-67, x=0, x=14, x=15, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=16, v=-67, x=0, x=15, x=15, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=16] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=16] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=16, v=-67, x=0, x=15, x=15, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=16, v=-67, x=0, x=15, x=15, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=16, v=-65, x=0, x=15, x=15, y=0] [L45] x++ VAL [X=99, Y=1, counter=16, v=-65, x=0, x=15, x=16, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=17, v=-65, x=0, x=15, x=16, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=17, v=-65, x=0, x=16, x=16, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=17] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=17] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=17, v=-65, x=0, x=16, x=16, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=17, v=-65, x=0, x=16, x=16, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=17, v=-63, x=0, x=16, x=16, y=0] [L45] x++ VAL [X=99, Y=1, counter=17, v=-63, x=0, x=16, x=17, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=18, v=-63, x=0, x=16, x=17, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=18, v=-63, x=0, x=17, x=17, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=18] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=18] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=18, v=-63, x=0, x=17, x=17, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=18, v=-63, x=0, x=17, x=17, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=18, v=-61, x=0, x=17, x=17, y=0] [L45] x++ VAL [X=99, Y=1, counter=18, v=-61, x=0, x=17, x=18, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=19, v=-61, x=0, x=17, x=18, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=19, v=-61, x=0, x=18, x=18, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=19] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=19] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=19, v=-61, x=0, x=18, x=18, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=19, v=-61, x=0, x=18, x=18, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=19, v=-59, x=0, x=18, x=18, y=0] [L45] x++ VAL [X=99, Y=1, counter=19, v=-59, x=0, x=18, x=19, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=20, v=-59, x=0, x=18, x=19, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=20, v=-59, x=0, x=19, x=19, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=20] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=20] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=20, v=-59, x=0, x=19, x=19, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=20, v=-59, x=0, x=19, x=19, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=20, v=-57, x=0, x=19, x=19, y=0] [L45] x++ VAL [X=99, Y=1, counter=20, v=-57, x=0, x=19, x=20, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=21, v=-57, x=0, x=19, x=20, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=21, v=-57, x=0, x=20, x=20, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=21] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=21] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=21, v=-57, x=0, x=20, x=20, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=21, v=-57, x=0, x=20, x=20, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=21, v=-55, x=0, x=20, x=20, y=0] [L45] x++ VAL [X=99, Y=1, counter=21, v=-55, x=0, x=20, x=21, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=22, v=-55, x=0, x=20, x=21, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=22, v=-55, x=0, x=21, x=21, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=22] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=22] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=22, v=-55, x=0, x=21, x=21, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=22, v=-55, x=0, x=21, x=21, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=22, v=-53, x=0, x=21, x=21, y=0] [L45] x++ VAL [X=99, Y=1, counter=22, v=-53, x=0, x=21, x=22, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=23, v=-53, x=0, x=21, x=22, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=23, v=-53, x=0, x=22, x=22, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=23] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=23] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=23, v=-53, x=0, x=22, x=22, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=23, v=-53, x=0, x=22, x=22, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=23, v=-51, x=0, x=22, x=22, y=0] [L45] x++ VAL [X=99, Y=1, counter=23, v=-51, x=0, x=22, x=23, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=24, v=-51, x=0, x=22, x=23, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=24, v=-51, x=0, x=23, x=23, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=24] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=24] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=24, v=-51, x=0, x=23, x=23, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=24, v=-51, x=0, x=23, x=23, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=24, v=-49, x=0, x=23, x=23, y=0] [L45] x++ VAL [X=99, Y=1, counter=24, v=-49, x=0, x=23, x=24, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=25, v=-49, x=0, x=23, x=24, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=25, v=-49, x=0, x=24, x=24, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=25] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=25] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=25, v=-49, x=0, x=24, x=24, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=25, v=-49, x=0, x=24, x=24, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=25, v=-47, x=0, x=24, x=24, y=0] [L45] x++ VAL [X=99, Y=1, counter=25, v=-47, x=0, x=24, x=25, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=26, v=-47, x=0, x=24, x=25, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=26, v=-47, x=0, x=25, x=25, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=26] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=26] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=26, v=-47, x=0, x=25, x=25, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=26, v=-47, x=0, x=25, x=25, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=26, v=-45, x=0, x=25, x=25, y=0] [L45] x++ VAL [X=99, Y=1, counter=26, v=-45, x=0, x=25, x=26, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=27, v=-45, x=0, x=25, x=26, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=27, v=-45, x=0, x=26, x=26, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=27] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=27] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=27, v=-45, x=0, x=26, x=26, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=27, v=-45, x=0, x=26, x=26, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=27, v=-43, x=0, x=26, x=26, y=0] [L45] x++ VAL [X=99, Y=1, counter=27, v=-43, x=0, x=26, x=27, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=28, v=-43, x=0, x=26, x=27, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=28, v=-43, x=0, x=27, x=27, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=28] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=28] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=28, v=-43, x=0, x=27, x=27, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=28, v=-43, x=0, x=27, x=27, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=28, v=-41, x=0, x=27, x=27, y=0] [L45] x++ VAL [X=99, Y=1, counter=28, v=-41, x=0, x=27, x=28, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=29, v=-41, x=0, x=27, x=28, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=29, v=-41, x=0, x=28, x=28, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=29] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=29] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=29, v=-41, x=0, x=28, x=28, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=29, v=-41, x=0, x=28, x=28, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=29, v=-39, x=0, x=28, x=28, y=0] [L45] x++ VAL [X=99, Y=1, counter=29, v=-39, x=0, x=28, x=29, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=30, v=-39, x=0, x=28, x=29, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=30, v=-39, x=0, x=29, x=29, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=30] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=30] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=30, v=-39, x=0, x=29, x=29, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=30, v=-39, x=0, x=29, x=29, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=30, v=-37, x=0, x=29, x=29, y=0] [L45] x++ VAL [X=99, Y=1, counter=30, v=-37, x=0, x=29, x=30, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=31, v=-37, x=0, x=29, x=30, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=31, v=-37, x=0, x=30, x=30, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=31] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=31] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=31, v=-37, x=0, x=30, x=30, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=31, v=-37, x=0, x=30, x=30, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=31, v=-35, x=0, x=30, x=30, y=0] [L45] x++ VAL [X=99, Y=1, counter=31, v=-35, x=0, x=30, x=31, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=32, v=-35, x=0, x=30, x=31, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=32, v=-35, x=0, x=31, x=31, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=32] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=32] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=32, v=-35, x=0, x=31, x=31, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=32, v=-35, x=0, x=31, x=31, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=32, v=-33, x=0, x=31, x=31, y=0] [L45] x++ VAL [X=99, Y=1, counter=32, v=-33, x=0, x=31, x=32, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=33, v=-33, x=0, x=31, x=32, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=33, v=-33, x=0, x=32, x=32, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=33] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=33] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=33, v=-33, x=0, x=32, x=32, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=33, v=-33, x=0, x=32, x=32, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=33, v=-31, x=0, x=32, x=32, y=0] [L45] x++ VAL [X=99, Y=1, counter=33, v=-31, x=0, x=32, x=33, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=34, v=-31, x=0, x=32, x=33, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=34, v=-31, x=0, x=33, x=33, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=34] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=34] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=34, v=-31, x=0, x=33, x=33, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=34, v=-31, x=0, x=33, x=33, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=34, v=-29, x=0, x=33, x=33, y=0] [L45] x++ VAL [X=99, Y=1, counter=34, v=-29, x=0, x=33, x=34, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=35, v=-29, x=0, x=33, x=34, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=35, v=-29, x=0, x=34, x=34, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=35] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=35] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=35, v=-29, x=0, x=34, x=34, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=35, v=-29, x=0, x=34, x=34, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=35, v=-27, x=0, x=34, x=34, y=0] [L45] x++ VAL [X=99, Y=1, counter=35, v=-27, x=0, x=34, x=35, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=36, v=-27, x=0, x=34, x=35, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=36, v=-27, x=0, x=35, x=35, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=36] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=36] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=36, v=-27, x=0, x=35, x=35, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=36, v=-27, x=0, x=35, x=35, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=36, v=-25, x=0, x=35, x=35, y=0] [L45] x++ VAL [X=99, Y=1, counter=36, v=-25, x=0, x=35, x=36, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=37, v=-25, x=0, x=35, x=36, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=37, v=-25, x=0, x=36, x=36, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=37] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=37] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=37, v=-25, x=0, x=36, x=36, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=37, v=-25, x=0, x=36, x=36, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=37, v=-23, x=0, x=36, x=36, y=0] [L45] x++ VAL [X=99, Y=1, counter=37, v=-23, x=0, x=36, x=37, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=38, v=-23, x=0, x=36, x=37, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=38, v=-23, x=0, x=37, x=37, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=38] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=38] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=38, v=-23, x=0, x=37, x=37, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=38, v=-23, x=0, x=37, x=37, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=38, v=-21, x=0, x=37, x=37, y=0] [L45] x++ VAL [X=99, Y=1, counter=38, v=-21, x=0, x=37, x=38, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=39, v=-21, x=0, x=37, x=38, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=39, v=-21, x=0, x=38, x=38, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=39] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=39] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=39, v=-21, x=0, x=38, x=38, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=39, v=-21, x=0, x=38, x=38, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=39, v=-19, x=0, x=38, x=38, y=0] [L45] x++ VAL [X=99, Y=1, counter=39, v=-19, x=0, x=38, x=39, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=40, v=-19, x=0, x=38, x=39, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=40, v=-19, x=0, x=39, x=39, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=40] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=40] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=40, v=-19, x=0, x=39, x=39, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=40, v=-19, x=0, x=39, x=39, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=40, v=-17, x=0, x=39, x=39, y=0] [L45] x++ VAL [X=99, Y=1, counter=40, v=-17, x=0, x=39, x=40, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=41, v=-17, x=0, x=39, x=40, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=41, v=-17, x=0, x=40, x=40, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=41] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=41] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=41, v=-17, x=0, x=40, x=40, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=41, v=-17, x=0, x=40, x=40, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=41, v=-15, x=0, x=40, x=40, y=0] [L45] x++ VAL [X=99, Y=1, counter=41, v=-15, x=0, x=40, x=41, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=42, v=-15, x=0, x=40, x=41, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=42, v=-15, x=0, x=41, x=41, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=42] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=42] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=42, v=-15, x=0, x=41, x=41, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=42, v=-15, x=0, x=41, x=41, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=42, v=-13, x=0, x=41, x=41, y=0] [L45] x++ VAL [X=99, Y=1, counter=42, v=-13, x=0, x=41, x=42, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=43, v=-13, x=0, x=41, x=42, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=43, v=-13, x=0, x=42, x=42, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=43] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=43] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=43, v=-13, x=0, x=42, x=42, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=43, v=-13, x=0, x=42, x=42, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=43, v=-11, x=0, x=42, x=42, y=0] [L45] x++ VAL [X=99, Y=1, counter=43, v=-11, x=0, x=42, x=43, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=44, v=-11, x=0, x=42, x=43, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=44, v=-11, x=0, x=43, x=43, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=44] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=44] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=44, v=-11, x=0, x=43, x=43, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=44, v=-11, x=0, x=43, x=43, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=44, v=-9, x=0, x=43, x=43, y=0] [L45] x++ VAL [X=99, Y=1, counter=44, v=-9, x=0, x=43, x=44, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=45, v=-9, x=0, x=43, x=44, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=45, v=-9, x=0, x=44, x=44, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=45] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=45] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=45, v=-9, x=0, x=44, x=44, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=45, v=-9, x=0, x=44, x=44, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=45, v=-7, x=0, x=44, x=44, y=0] [L45] x++ VAL [X=99, Y=1, counter=45, v=-7, x=0, x=44, x=45, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=46, v=-7, x=0, x=44, x=45, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=46, v=-7, x=0, x=45, x=45, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=46] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=46] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=46, v=-7, x=0, x=45, x=45, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=46, v=-7, x=0, x=45, x=45, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=46, v=-5, x=0, x=45, x=45, y=0] [L45] x++ VAL [X=99, Y=1, counter=46, v=-5, x=0, x=45, x=46, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=47, v=-5, x=0, x=45, x=46, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=47, v=-5, x=0, x=46, x=46, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=47] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=47] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=47, v=-5, x=0, x=46, x=46, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=47, v=-5, x=0, x=46, x=46, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=47, v=-3, x=0, x=46, x=46, y=0] [L45] x++ VAL [X=99, Y=1, counter=47, v=-3, x=0, x=46, x=47, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=48, v=-3, x=0, x=46, x=47, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=48, v=-3, x=0, x=47, x=47, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=48] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=48] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=48, v=-3, x=0, x=47, x=47, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=48, v=-3, x=0, x=47, x=47, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=48, v=-1, x=0, x=47, x=47, y=0] [L45] x++ VAL [X=99, Y=1, counter=48, v=-1, x=0, x=47, x=48, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=49, v=-1, x=0, x=47, x=48, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=49, v=-1, x=0, x=48, x=48, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=49] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=49] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=49, v=-1, x=0, x=48, x=48, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=49, v=-1, x=0, x=48, x=48, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=49, v=1, x=0, x=48, x=48, y=0] [L45] x++ VAL [X=99, Y=1, counter=49, v=1, x=0, x=48, x=49, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=50, v=1, x=0, x=48, x=49, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=50, v=1, x=0, x=49, x=49, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=50] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=50] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=50, v=1, x=0, x=49, x=49, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=50, v=1, x=0, x=49, x=49, y=0] [L39] COND FALSE !(v < 0) [L42] v = v + 2 * ((long long) Y - X) [L43] y++ VAL [X=99, Y=1, counter=50, v=-195, x=0, x=49, x=49, y=1] [L45] x++ VAL [X=99, Y=1, counter=50, v=-195, x=0, x=49, x=50, y=1] [L31] EXPR counter++ VAL [X=99, Y=1, counter=51, v=-195, x=0, x=49, x=50, y=1] [L31] COND FALSE !(counter++<50) [L47] xy = (long long) x*y [L48] yx = (long long) Y*x VAL [X=99, Y=1, counter=51, v=-195, x=50, x=50, x=50, y=1] [L49] CALL __VERIFIER_assert(2*yx - 2*xy - X + (long long) 2*Y - v + 2*y == 0) VAL [\old(cond)=0, counter=51] [L14] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=51] [L16] reach_error() VAL [\old(cond)=0, cond=0, counter=51] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 21.9s, OverallIterations: 10, TraceHistogramMax: 51, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 871 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 870 mSDsluCounter, 1543 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1420 mSDsCounter, 109 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1099 IncrementalHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 109 mSolverCounterUnsat, 123 mSDtfsCounter, 1099 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2439 GetRequests, 2046 SyntacticMatches, 45 SemanticMatches, 348 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4398 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1000occurred in iteration=9, InterpolantAutomatonStates: 330, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 31 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 9.3s InterpolantComputationTime, 1664 NumberOfCodeBlocks, 1454 NumberOfCodeBlocksAsserted, 63 NumberOfCheckSat, 2285 ConstructedInterpolants, 1 QuantifiedInterpolants, 6427 SizeOfPredicates, 107 NumberOfNonLiveVariables, 2545 ConjunctsInSsa, 276 ConjunctsInUnsatCore, 17 InterpolantComputations, 1 PerfectInterpolantSequences, 10289/31834 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-12 02:21:07,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2b7bbe-d969-49dc-b6bf-8e18db672887/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE