./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p22.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p22.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 81099e1fe8016daaefd672ebf53a7cbfe30573425760bd713b63c430b338ca02 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:18:06,509 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:18:06,665 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-06 22:18:06,673 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:18:06,673 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:18:06,709 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:18:06,710 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:18:06,714 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:18:06,714 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:18:06,719 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:18:06,720 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:18:06,721 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:18:06,721 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:18:06,723 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:18:06,723 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:18:06,723 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:18:06,724 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:18:06,724 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:18:06,725 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:18:06,725 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:18:06,725 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:18:06,726 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:18:06,726 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:18:06,727 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:18:06,727 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:18:06,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:18:06,728 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:18:06,728 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:18:06,729 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:18:06,729 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:18:06,730 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:18:06,730 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:18:06,730 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:18:06,731 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:18:06,731 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:18:06,731 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:18:06,731 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_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81099e1fe8016daaefd672ebf53a7cbfe30573425760bd713b63c430b338ca02 [2023-11-06 22:18:07,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:18:07,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:18:07,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:18:07,068 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:18:07,069 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:18:07,070 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p22.c [2023-11-06 22:18:10,212 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:18:10,500 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:18:10,501 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p22.c [2023-11-06 22:18:10,530 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/data/a1bb4f442/df30c2a3c3d145958cf2059a3867c548/FLAG6f7b67a6f [2023-11-06 22:18:10,548 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/data/a1bb4f442/df30c2a3c3d145958cf2059a3867c548 [2023-11-06 22:18:10,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:18:10,558 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:18:10,564 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:18:10,565 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:18:10,571 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:18:10,572 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:18:10" (1/1) ... [2023-11-06 22:18:10,573 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef0a972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:10, skipping insertion in model container [2023-11-06 22:18:10,574 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:18:10" (1/1) ... [2023-11-06 22:18:10,644 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:18:10,850 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_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p22.c[1266,1279] [2023-11-06 22:18:10,986 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:18:11,005 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:18:11,017 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_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p22.c[1266,1279] [2023-11-06 22:18:11,106 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:18:11,122 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:18:11,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:11 WrapperNode [2023-11-06 22:18:11,123 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:18:11,124 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:18:11,124 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:18:11,124 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:18:11,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:11" (1/1) ... [2023-11-06 22:18:11,157 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:11" (1/1) ... [2023-11-06 22:18:11,290 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 800 [2023-11-06 22:18:11,291 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:18:11,292 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:18:11,292 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:18:11,292 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:18:11,302 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:11" (1/1) ... [2023-11-06 22:18:11,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:11" (1/1) ... [2023-11-06 22:18:11,347 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:11" (1/1) ... [2023-11-06 22:18:11,349 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:11" (1/1) ... [2023-11-06 22:18:11,383 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:11" (1/1) ... [2023-11-06 22:18:11,390 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:11" (1/1) ... [2023-11-06 22:18:11,398 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:11" (1/1) ... [2023-11-06 22:18:11,408 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:11" (1/1) ... [2023-11-06 22:18:11,423 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:18:11,425 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:18:11,425 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:18:11,425 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:18:11,426 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:11" (1/1) ... [2023-11-06 22:18:11,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:18:11,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:18:11,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:18:11,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:18:11,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:18:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:18:11,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:18:11,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:18:11,726 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:18:11,731 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:18:12,649 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:18:12,661 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:18:12,663 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:18:12,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:18:12 BoogieIcfgContainer [2023-11-06 22:18:12,667 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:18:12,670 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:18:12,671 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:18:12,674 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:18:12,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:18:10" (1/3) ... [2023-11-06 22:18:12,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577ae98d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:18:12, skipping insertion in model container [2023-11-06 22:18:12,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:11" (2/3) ... [2023-11-06 22:18:12,678 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577ae98d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:18:12, skipping insertion in model container [2023-11-06 22:18:12,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:18:12" (3/3) ... [2023-11-06 22:18:12,681 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p22.c [2023-11-06 22:18:12,701 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:18:12,701 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:18:12,774 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:18:12,783 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2c980ba0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:18:12,783 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:18:12,790 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 108 states have (on average 1.6481481481481481) internal successors, (178), 109 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:12,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-06 22:18:12,798 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:12,798 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:18:12,799 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:18:12,807 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:12,808 INFO L85 PathProgramCache]: Analyzing trace with hash -959972803, now seen corresponding path program 1 times [2023-11-06 22:18:12,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:18:12,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125557430] [2023-11-06 22:18:12,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:18:12,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:18:13,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:13,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:18:13,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:18:13,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125557430] [2023-11-06 22:18:13,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125557430] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:18:13,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:18:13,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:18:13,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951776552] [2023-11-06 22:18:13,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:18:13,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:18:13,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:18:13,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:18:13,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:18:13,642 INFO L87 Difference]: Start difference. First operand has 110 states, 108 states have (on average 1.6481481481481481) internal successors, (178), 109 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:13,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:18:13,699 INFO L93 Difference]: Finished difference Result 177 states and 289 transitions. [2023-11-06 22:18:13,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:18:13,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2023-11-06 22:18:13,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:18:13,711 INFO L225 Difference]: With dead ends: 177 [2023-11-06 22:18:13,712 INFO L226 Difference]: Without dead ends: 108 [2023-11-06 22:18:13,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:18:13,719 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 1 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:18:13,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 504 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:18:13,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-11-06 22:18:13,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2023-11-06 22:18:13,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 107 states have (on average 1.6261682242990654) internal successors, (174), 107 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:13,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 174 transitions. [2023-11-06 22:18:13,765 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 174 transitions. Word has length 41 [2023-11-06 22:18:13,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:18:13,766 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 174 transitions. [2023-11-06 22:18:13,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:13,766 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 174 transitions. [2023-11-06 22:18:13,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-06 22:18:13,768 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:13,768 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:18:13,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:18:13,769 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:18:13,770 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:13,770 INFO L85 PathProgramCache]: Analyzing trace with hash 307398925, now seen corresponding path program 1 times [2023-11-06 22:18:13,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:18:13,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645070280] [2023-11-06 22:18:13,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:18:13,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:18:13,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:14,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:18:14,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:18:14,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645070280] [2023-11-06 22:18:14,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645070280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:18:14,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:18:14,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:18:14,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310723955] [2023-11-06 22:18:14,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:18:14,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:18:14,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:18:14,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:18:14,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:18:14,013 INFO L87 Difference]: Start difference. First operand 108 states and 174 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:14,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:18:14,071 INFO L93 Difference]: Finished difference Result 178 states and 285 transitions. [2023-11-06 22:18:14,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:18:14,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2023-11-06 22:18:14,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:18:14,074 INFO L225 Difference]: With dead ends: 178 [2023-11-06 22:18:14,074 INFO L226 Difference]: Without dead ends: 111 [2023-11-06 22:18:14,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:18:14,077 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 1 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:18:14,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 501 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:18:14,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-06 22:18:14,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2023-11-06 22:18:14,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 1.614678899082569) internal successors, (176), 109 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:14,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 176 transitions. [2023-11-06 22:18:14,089 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 176 transitions. Word has length 42 [2023-11-06 22:18:14,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:18:14,090 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 176 transitions. [2023-11-06 22:18:14,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:14,091 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 176 transitions. [2023-11-06 22:18:14,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-06 22:18:14,092 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:14,093 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:18:14,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:18:14,093 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:18:14,094 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:14,094 INFO L85 PathProgramCache]: Analyzing trace with hash 727212373, now seen corresponding path program 1 times [2023-11-06 22:18:14,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:18:14,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666842808] [2023-11-06 22:18:14,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:18:14,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:18:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:14,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:18:14,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:18:14,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666842808] [2023-11-06 22:18:14,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666842808] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:18:14,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:18:14,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:18:14,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173270142] [2023-11-06 22:18:14,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:18:14,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:18:14,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:18:14,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:18:14,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:18:14,561 INFO L87 Difference]: Start difference. First operand 110 states and 176 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:14,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:18:14,761 INFO L93 Difference]: Finished difference Result 255 states and 405 transitions. [2023-11-06 22:18:14,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:18:14,762 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2023-11-06 22:18:14,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:18:14,765 INFO L225 Difference]: With dead ends: 255 [2023-11-06 22:18:14,765 INFO L226 Difference]: Without dead ends: 186 [2023-11-06 22:18:14,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:18:14,768 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 348 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:18:14,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 570 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:18:14,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2023-11-06 22:18:14,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 113. [2023-11-06 22:18:14,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 112 states have (on average 1.5982142857142858) internal successors, (179), 112 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:14,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 179 transitions. [2023-11-06 22:18:14,784 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 179 transitions. Word has length 43 [2023-11-06 22:18:14,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:18:14,784 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 179 transitions. [2023-11-06 22:18:14,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:14,785 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 179 transitions. [2023-11-06 22:18:14,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-06 22:18:14,787 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:14,787 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:18:14,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:18:14,788 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:18:14,788 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:14,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1792747561, now seen corresponding path program 1 times [2023-11-06 22:18:14,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:18:14,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074220608] [2023-11-06 22:18:14,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:18:14,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:18:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:15,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:18:15,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:18:15,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074220608] [2023-11-06 22:18:15,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074220608] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:18:15,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:18:15,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:18:15,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172049837] [2023-11-06 22:18:15,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:18:15,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:18:15,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:18:15,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:18:15,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:18:15,605 INFO L87 Difference]: Start difference. First operand 113 states and 179 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:15,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:18:15,906 INFO L93 Difference]: Finished difference Result 334 states and 522 transitions. [2023-11-06 22:18:15,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:18:15,908 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2023-11-06 22:18:15,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:18:15,914 INFO L225 Difference]: With dead ends: 334 [2023-11-06 22:18:15,914 INFO L226 Difference]: Without dead ends: 262 [2023-11-06 22:18:15,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:18:15,920 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 646 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:18:15,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 852 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:18:15,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2023-11-06 22:18:15,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 117. [2023-11-06 22:18:15,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 116 states have (on average 1.5862068965517242) internal successors, (184), 116 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:15,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 184 transitions. [2023-11-06 22:18:15,933 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 184 transitions. Word has length 43 [2023-11-06 22:18:15,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:18:15,933 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 184 transitions. [2023-11-06 22:18:15,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:15,934 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 184 transitions. [2023-11-06 22:18:15,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-06 22:18:15,935 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:15,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:18:15,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:18:15,936 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:18:15,937 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:15,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1628100685, now seen corresponding path program 1 times [2023-11-06 22:18:15,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:18:15,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817960708] [2023-11-06 22:18:15,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:18:15,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:18:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:16,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:18:16,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:18:16,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817960708] [2023-11-06 22:18:16,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817960708] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:18:16,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:18:16,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:18:16,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123300381] [2023-11-06 22:18:16,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:18:16,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:18:16,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:18:16,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:18:16,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:18:16,368 INFO L87 Difference]: Start difference. First operand 117 states and 184 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:16,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:18:16,642 INFO L93 Difference]: Finished difference Result 277 states and 431 transitions. [2023-11-06 22:18:16,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:18:16,643 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2023-11-06 22:18:16,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:18:16,645 INFO L225 Difference]: With dead ends: 277 [2023-11-06 22:18:16,645 INFO L226 Difference]: Without dead ends: 201 [2023-11-06 22:18:16,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:18:16,653 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 368 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:18:16,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 794 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:18:16,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-11-06 22:18:16,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 117. [2023-11-06 22:18:16,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 116 states have (on average 1.5862068965517242) internal successors, (184), 116 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:16,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 184 transitions. [2023-11-06 22:18:16,663 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 184 transitions. Word has length 44 [2023-11-06 22:18:16,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:18:16,664 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 184 transitions. [2023-11-06 22:18:16,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:16,664 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 184 transitions. [2023-11-06 22:18:16,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-06 22:18:16,666 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:16,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:18:16,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:18:16,666 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:18:16,667 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:16,667 INFO L85 PathProgramCache]: Analyzing trace with hash 146906677, now seen corresponding path program 1 times [2023-11-06 22:18:16,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:18:16,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166642066] [2023-11-06 22:18:16,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:18:16,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:18:16,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:17,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:18:17,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:18:17,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166642066] [2023-11-06 22:18:17,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166642066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:18:17,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:18:17,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:18:17,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482402068] [2023-11-06 22:18:17,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:18:17,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:18:17,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:18:17,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:18:17,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:18:17,111 INFO L87 Difference]: Start difference. First operand 117 states and 184 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:17,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:18:17,605 INFO L93 Difference]: Finished difference Result 208 states and 323 transitions. [2023-11-06 22:18:17,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:18:17,606 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2023-11-06 22:18:17,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:18:17,607 INFO L225 Difference]: With dead ends: 208 [2023-11-06 22:18:17,607 INFO L226 Difference]: Without dead ends: 132 [2023-11-06 22:18:17,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:18:17,609 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 241 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:18:17,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 233 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:18:17,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-11-06 22:18:17,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 117. [2023-11-06 22:18:17,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 116 states have (on average 1.5775862068965518) internal successors, (183), 116 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:17,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 183 transitions. [2023-11-06 22:18:17,626 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 183 transitions. Word has length 44 [2023-11-06 22:18:17,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:18:17,626 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 183 transitions. [2023-11-06 22:18:17,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:17,627 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 183 transitions. [2023-11-06 22:18:17,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-06 22:18:17,628 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:17,629 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:18:17,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:18:17,629 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:18:17,630 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:17,630 INFO L85 PathProgramCache]: Analyzing trace with hash 146847095, now seen corresponding path program 1 times [2023-11-06 22:18:17,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:18:17,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031704382] [2023-11-06 22:18:17,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:18:17,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:18:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:18:17,684 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:18:17,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:18:17,816 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:18:17,816 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:18:17,817 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:18:17,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:18:17,823 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:18:17,827 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:18:17,894 WARN L316 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-06 22:18:17,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:18:17 BoogieIcfgContainer [2023-11-06 22:18:17,920 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:18:17,921 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:18:17,921 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:18:17,921 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:18:17,922 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:18:12" (3/4) ... [2023-11-06 22:18:17,923 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:18:17,925 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:18:17,925 INFO L158 Benchmark]: Toolchain (without parser) took 7367.39ms. Allocated memory was 169.9MB in the beginning and 211.8MB in the end (delta: 41.9MB). Free memory was 134.0MB in the beginning and 132.0MB in the end (delta: 2.0MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. [2023-11-06 22:18:17,925 INFO L158 Benchmark]: CDTParser took 0.66ms. Allocated memory is still 113.2MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:18:17,926 INFO L158 Benchmark]: CACSL2BoogieTranslator took 559.30ms. Allocated memory is still 169.9MB. Free memory was 133.5MB in the beginning and 112.4MB in the end (delta: 21.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-06 22:18:17,927 INFO L158 Benchmark]: Boogie Procedure Inliner took 167.12ms. Allocated memory is still 169.9MB. Free memory was 112.4MB in the beginning and 98.8MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-06 22:18:17,928 INFO L158 Benchmark]: Boogie Preprocessor took 132.17ms. Allocated memory is still 169.9MB. Free memory was 98.8MB in the beginning and 93.4MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:18:17,928 INFO L158 Benchmark]: RCFGBuilder took 1242.87ms. Allocated memory is still 169.9MB. Free memory was 93.4MB in the beginning and 78.5MB in the end (delta: 14.9MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2023-11-06 22:18:17,928 INFO L158 Benchmark]: TraceAbstraction took 5250.36ms. Allocated memory was 169.9MB in the beginning and 211.8MB in the end (delta: 41.9MB). Free memory was 77.9MB in the beginning and 132.0MB in the end (delta: -54.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:18:17,929 INFO L158 Benchmark]: Witness Printer took 3.86ms. Allocated memory is still 211.8MB. Free memory is still 132.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:18:17,931 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66ms. Allocated memory is still 113.2MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 559.30ms. Allocated memory is still 169.9MB. Free memory was 133.5MB in the beginning and 112.4MB in the end (delta: 21.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 167.12ms. Allocated memory is still 169.9MB. Free memory was 112.4MB in the beginning and 98.8MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 132.17ms. Allocated memory is still 169.9MB. Free memory was 98.8MB in the beginning and 93.4MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1242.87ms. Allocated memory is still 169.9MB. Free memory was 93.4MB in the beginning and 78.5MB in the end (delta: 14.9MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5250.36ms. Allocated memory was 169.9MB in the beginning and 211.8MB in the end (delta: 41.9MB). Free memory was 77.9MB in the beginning and 132.0MB in the end (delta: -54.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.86ms. Allocated memory is still 211.8MB. Free memory is still 132.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 169. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L32] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 32); [L33] const SORT_10 msb_SORT_10 = (SORT_10)1 << (32 - 1); [L35] const SORT_33 mask_SORT_33 = (SORT_33)-1 >> (sizeof(SORT_33) * 8 - 4); [L36] const SORT_33 msb_SORT_33 = (SORT_33)1 << (4 - 1); [L38] const SORT_69 mask_SORT_69 = (SORT_69)-1 >> (sizeof(SORT_69) * 8 - 10); [L39] const SORT_69 msb_SORT_69 = (SORT_69)1 << (10 - 1); [L41] const SORT_3 var_7 = 0; [L42] const SORT_10 var_12 = 0; [L43] const SORT_1 var_14 = 0; [L44] const SORT_10 var_18 = 1; [L45] const SORT_1 var_23 = 1; [L46] const SORT_69 var_70 = 0; [L47] const SORT_10 var_113 = 104; [L49] SORT_1 input_2; [L50] SORT_3 input_4; [L51] SORT_1 input_5; [L52] SORT_1 input_6; [L53] SORT_1 input_31; [L54] SORT_33 input_34; [L55] SORT_1 input_36; [L56] SORT_33 input_38; [L57] SORT_1 input_40; [L58] SORT_1 input_42; [L59] SORT_1 input_48; [L60] SORT_1 input_50; [L61] SORT_1 input_52; [L62] SORT_1 input_57; [L63] SORT_1 input_67; [L64] SORT_3 input_75; [L65] SORT_1 input_82; [L66] SORT_1 input_89; [L67] SORT_1 input_95; [L68] SORT_1 input_101; [L69] SORT_1 input_107; [L70] SORT_1 input_108; [L71] SORT_1 input_109; [L72] SORT_1 input_126; [L73] SORT_69 input_136; [L74] SORT_1 input_144; [L75] SORT_1 input_145; [L76] SORT_1 input_146; [L78] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [__VERIFIER_nondet_uchar() & mask_SORT_3=0, __VERIFIER_nondet_uchar()=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_33=15, mask_SORT_3=255, mask_SORT_69=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_33=8, msb_SORT_3=128, msb_SORT_69=512, var_113=104, var_12=0, var_14=0, var_18=1, var_23=1, var_70=0, var_7=0] [L78] SORT_3 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L79] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [__VERIFIER_nondet_uchar() & mask_SORT_1=0, __VERIFIER_nondet_uchar()=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_33=15, mask_SORT_3=255, mask_SORT_69=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_33=8, msb_SORT_3=128, msb_SORT_69=512, state_8=0, var_113=104, var_12=0, var_14=0, var_18=1, var_23=1, var_70=0, var_7=0] [L79] SORT_1 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [__VERIFIER_nondet_uchar() & mask_SORT_1=0, __VERIFIER_nondet_uchar()=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_33=15, mask_SORT_3=255, mask_SORT_69=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_33=8, msb_SORT_3=128, msb_SORT_69=512, state_15=0, state_8=0, var_113=104, var_12=0, var_14=0, var_18=1, var_23=1, var_70=0, var_7=0] [L80] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [__VERIFIER_nondet_uchar() & mask_SORT_1=0, __VERIFIER_nondet_uchar()=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_33=15, mask_SORT_3=255, mask_SORT_69=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_33=8, msb_SORT_3=128, msb_SORT_69=512, state_15=0, state_27=0, state_8=0, var_113=104, var_12=0, var_14=0, var_18=1, var_23=1, var_70=0, var_7=0] [L81] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [__VERIFIER_nondet_uchar() & mask_SORT_1=0, __VERIFIER_nondet_uchar()=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_33=15, mask_SORT_3=255, mask_SORT_69=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_33=8, msb_SORT_3=128, msb_SORT_69=512, state_15=0, state_27=0, state_29=0, state_8=0, var_113=104, var_12=0, var_14=0, var_18=1, var_23=1, var_70=0, var_7=0] [L82] SORT_1 state_44 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [__VERIFIER_nondet_uchar() & mask_SORT_1=0, __VERIFIER_nondet_uchar()=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_33=15, mask_SORT_3=255, mask_SORT_69=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_33=8, msb_SORT_3=128, msb_SORT_69=512, state_15=0, state_27=0, state_29=0, state_44=0, state_8=0, var_113=104, var_12=0, var_14=0, var_18=1, var_23=1, var_70=0, var_7=0] [L83] SORT_1 state_46 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [__VERIFIER_nondet_uchar() & mask_SORT_1=0, __VERIFIER_nondet_uchar()=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_33=15, mask_SORT_3=255, mask_SORT_69=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_33=8, msb_SORT_3=128, msb_SORT_69=512, state_15=0, state_27=0, state_29=0, state_44=0, state_46=0, state_8=0, var_113=104, var_12=0, var_14=0, var_18=1, var_23=1, var_70=0, var_7=0] [L84] SORT_1 state_54 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [__VERIFIER_nondet_uchar() & mask_SORT_1=0, __VERIFIER_nondet_uchar()=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_33=15, mask_SORT_3=255, mask_SORT_69=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_33=8, msb_SORT_3=128, msb_SORT_69=512, state_15=0, state_27=0, state_29=0, state_44=0, state_46=0, state_54=0, state_8=0, var_113=104, var_12=0, var_14=0, var_18=1, var_23=1, var_70=0, var_7=0] [L85] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [__VERIFIER_nondet_uchar() & mask_SORT_1=0, __VERIFIER_nondet_uchar()=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_33=15, mask_SORT_3=255, mask_SORT_69=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_33=8, msb_SORT_3=128, msb_SORT_69=512, state_15=0, state_27=0, state_29=0, state_44=0, state_46=0, state_54=0, state_59=0, state_8=0, var_113=104, var_12=0, var_14=0, var_18=1, var_23=1, var_70=0, var_7=0] [L86] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [__VERIFIER_nondet_uchar() & mask_SORT_1=0, __VERIFIER_nondet_uchar()=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_33=15, mask_SORT_3=255, mask_SORT_69=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_33=8, msb_SORT_3=128, msb_SORT_69=512, state_15=0, state_27=0, state_29=0, state_44=0, state_46=0, state_54=0, state_59=0, state_61=0, state_8=0, var_113=104, var_12=0, var_14=0, var_18=1, var_23=1, var_70=0, var_7=0] [L87] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [__VERIFIER_nondet_uchar() & mask_SORT_1=0, __VERIFIER_nondet_uchar()=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_33=15, mask_SORT_3=255, mask_SORT_69=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_33=8, msb_SORT_3=128, msb_SORT_69=512, state_15=0, state_27=0, state_29=0, state_44=0, state_46=0, state_54=0, state_59=0, state_61=0, state_63=0, state_8=0, var_113=104, var_12=0, var_14=0, var_18=1, var_23=1, var_70=0, var_7=0] [L88] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] EXPR __VERIFIER_nondet_ushort() & mask_SORT_69 VAL [__VERIFIER_nondet_ushort() & mask_SORT_69=0, __VERIFIER_nondet_ushort()=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_33=15, mask_SORT_3=255, mask_SORT_69=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_33=8, msb_SORT_3=128, msb_SORT_69=512, state_15=0, state_27=0, state_29=0, state_44=0, state_46=0, state_54=0, state_59=0, state_61=0, state_63=0, state_65=0, state_8=0, var_113=104, var_12=0, var_14=0, var_18=1, var_23=1, var_70=0, var_7=0] [L89] SORT_69 state_71 = __VERIFIER_nondet_ushort() & mask_SORT_69; [L90] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [__VERIFIER_nondet_uchar() & mask_SORT_1=0, __VERIFIER_nondet_uchar()=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_33=15, mask_SORT_3=255, mask_SORT_69=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_33=8, msb_SORT_3=128, msb_SORT_69=512, state_15=0, state_27=0, state_29=0, state_44=0, state_46=0, state_54=0, state_59=0, state_61=0, state_63=0, state_65=0, state_71=0, state_8=0, var_113=104, var_12=0, var_14=0, var_18=1, var_23=1, var_70=0, var_7=0] [L90] SORT_1 state_73 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L92] SORT_3 init_9_arg_1 = var_7; [L93] state_8 = init_9_arg_1 [L94] SORT_1 init_16_arg_1 = var_14; [L95] state_15 = init_16_arg_1 [L96] SORT_1 init_28_arg_1 = var_14; [L97] state_27 = init_28_arg_1 [L98] SORT_1 init_30_arg_1 = var_14; [L99] state_29 = init_30_arg_1 [L100] SORT_1 init_45_arg_1 = var_14; [L101] state_44 = init_45_arg_1 [L102] SORT_1 init_47_arg_1 = var_14; [L103] state_46 = init_47_arg_1 [L104] SORT_1 init_55_arg_1 = var_23; [L105] state_54 = init_55_arg_1 [L106] SORT_1 init_60_arg_1 = var_14; [L107] state_59 = init_60_arg_1 [L108] SORT_1 init_62_arg_1 = var_14; [L109] state_61 = init_62_arg_1 [L110] SORT_1 init_64_arg_1 = var_14; [L111] state_63 = init_64_arg_1 [L112] SORT_1 init_66_arg_1 = var_14; [L113] state_65 = init_66_arg_1 [L114] SORT_69 init_72_arg_1 = var_70; [L115] state_71 = init_72_arg_1 [L116] SORT_1 init_74_arg_1 = var_14; [L117] state_73 = init_74_arg_1 VAL [init_16_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_55_arg_1=1, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_33=15, mask_SORT_3=255, mask_SORT_69=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_33=8, msb_SORT_3=128, msb_SORT_69=512, state_15=0, state_27=0, state_29=0, state_44=0, state_46=0, state_54=1, state_59=0, state_61=0, state_63=0, state_65=0, state_71=0, state_73=0, state_8=0, var_113=104, var_12=0, var_14=0, var_18=1, var_23=1, var_70=0, var_7=0] [L120] input_2 = __VERIFIER_nondet_uchar() [L121] input_4 = __VERIFIER_nondet_uchar() [L122] input_5 = __VERIFIER_nondet_uchar() [L123] input_6 = __VERIFIER_nondet_uchar() [L124] input_31 = __VERIFIER_nondet_uchar() [L125] input_34 = __VERIFIER_nondet_uchar() [L126] input_36 = __VERIFIER_nondet_uchar() [L127] input_38 = __VERIFIER_nondet_uchar() [L128] input_40 = __VERIFIER_nondet_uchar() [L129] input_42 = __VERIFIER_nondet_uchar() [L130] input_48 = __VERIFIER_nondet_uchar() [L131] input_50 = __VERIFIER_nondet_uchar() [L132] input_52 = __VERIFIER_nondet_uchar() [L133] input_57 = __VERIFIER_nondet_uchar() [L134] input_67 = __VERIFIER_nondet_uchar() [L135] input_75 = __VERIFIER_nondet_uchar() [L136] input_82 = __VERIFIER_nondet_uchar() [L137] input_89 = __VERIFIER_nondet_uchar() [L138] input_95 = __VERIFIER_nondet_uchar() [L139] input_101 = __VERIFIER_nondet_uchar() [L140] input_107 = __VERIFIER_nondet_uchar() [L141] input_108 = __VERIFIER_nondet_uchar() [L142] input_109 = __VERIFIER_nondet_uchar() [L143] input_126 = __VERIFIER_nondet_uchar() [L144] input_136 = __VERIFIER_nondet_ushort() [L145] input_144 = __VERIFIER_nondet_uchar() [L146] input_145 = __VERIFIER_nondet_uchar() [L147] input_146 = __VERIFIER_nondet_uchar() [L150] SORT_3 var_11_arg_0 = state_8; VAL [init_16_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_55_arg_1=1, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_33=15, mask_SORT_3=255, mask_SORT_69=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_33=8, msb_SORT_3=128, msb_SORT_69=512, state_15=0, state_27=0, state_29=0, state_44=0, state_46=0, state_54=1, state_59=0, state_61=0, state_63=0, state_65=0, state_71=0, state_73=0, state_8=0, var_113=104, var_11_arg_0=0, var_12=0, var_14=0, var_18=1, var_23=1, var_70=0, var_7=0] [L151] EXPR var_11_arg_0 & mask_SORT_3 VAL [init_16_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_55_arg_1=1, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_33=15, mask_SORT_3=255, mask_SORT_69=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_33=8, msb_SORT_3=128, msb_SORT_69=512, state_15=0, state_27=0, state_29=0, state_44=0, state_46=0, state_54=1, state_59=0, state_61=0, state_63=0, state_65=0, state_71=0, state_73=0, state_8=0, var_113=104, var_11_arg_0 & mask_SORT_3=0, var_11_arg_0=0, var_12=0, var_14=0, var_18=1, var_23=1, var_70=0, var_7=0] [L151] var_11_arg_0 = var_11_arg_0 & mask_SORT_3 [L152] SORT_10 var_11 = var_11_arg_0; [L153] SORT_10 var_13_arg_0 = var_11; [L154] SORT_10 var_13_arg_1 = var_12; [L155] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L156] SORT_1 var_17_arg_0 = state_15; VAL [init_16_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_55_arg_1=1, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_33=15, mask_SORT_3=255, mask_SORT_69=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_33=8, msb_SORT_3=128, msb_SORT_69=512, state_15=0, state_27=0, state_29=0, state_44=0, state_46=0, state_54=1, state_59=0, state_61=0, state_63=0, state_65=0, state_71=0, state_73=0, state_8=0, var_113=104, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_14=0, var_17_arg_0=0, var_18=1, var_23=1, var_70=0, var_7=0] [L157] EXPR var_17_arg_0 & mask_SORT_1 VAL [init_16_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_55_arg_1=1, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_33=15, mask_SORT_3=255, mask_SORT_69=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_33=8, msb_SORT_3=128, msb_SORT_69=512, state_15=0, state_27=0, state_29=0, state_44=0, state_46=0, state_54=1, state_59=0, state_61=0, state_63=0, state_65=0, state_71=0, state_73=0, state_8=0, var_113=104, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_14=0, var_17_arg_0 & mask_SORT_1=0, var_17_arg_0=0, var_18=1, var_23=1, var_70=0, var_7=0] [L157] var_17_arg_0 = var_17_arg_0 & mask_SORT_1 [L158] SORT_10 var_17 = var_17_arg_0; [L159] SORT_10 var_19_arg_0 = var_17; [L160] SORT_10 var_19_arg_1 = var_18; [L161] SORT_1 var_19 = var_19_arg_0 == var_19_arg_1; [L162] SORT_1 var_20_arg_0 = var_13; [L163] SORT_1 var_20_arg_1 = var_19; VAL [init_16_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_55_arg_1=1, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_33=15, mask_SORT_3=255, mask_SORT_69=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_33=8, msb_SORT_3=128, msb_SORT_69=512, state_15=0, state_27=0, state_29=0, state_44=0, state_46=0, state_54=1, state_59=0, state_61=0, state_63=0, state_65=0, state_71=0, state_73=0, state_8=0, var_113=104, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_14=0, var_17=0, var_17_arg_0=0, var_18=1, var_19=0, var_19_arg_0=0, var_19_arg_1=1, var_20_arg_0=1, var_20_arg_1=0, var_23=1, var_70=0, var_7=0] [L164] EXPR var_20_arg_0 | var_20_arg_1 VAL [init_16_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_55_arg_1=1, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_33=15, mask_SORT_3=255, mask_SORT_69=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_33=8, msb_SORT_3=128, msb_SORT_69=512, state_15=0, state_27=0, state_29=0, state_44=0, state_46=0, state_54=1, state_59=0, state_61=0, state_63=0, state_65=0, state_71=0, state_73=0, state_8=0, var_113=104, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_14=0, var_17=0, var_17_arg_0=0, var_18=1, var_19=0, var_19_arg_0=0, var_19_arg_1=1, var_20_arg_0 | var_20_arg_1=1, var_20_arg_0=1, var_20_arg_1=0, var_23=1, var_70=0, var_7=0] [L164] SORT_1 var_20 = var_20_arg_0 | var_20_arg_1; [L165] SORT_1 var_24_arg_0 = var_20; [L166] SORT_1 var_24 = ~var_24_arg_0; [L167] SORT_1 var_25_arg_0 = var_23; [L168] SORT_1 var_25_arg_1 = var_24; VAL [init_16_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_55_arg_1=1, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_33=15, mask_SORT_3=255, mask_SORT_69=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_33=8, msb_SORT_3=128, msb_SORT_69=512, state_15=0, state_27=0, state_29=0, state_44=0, state_46=0, state_54=1, state_59=0, state_61=0, state_63=0, state_65=0, state_71=0, state_73=0, state_8=0, var_113=104, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_14=0, var_17=0, var_17_arg_0=0, var_18=1, var_19=0, var_19_arg_0=0, var_19_arg_1=1, var_20=1, var_20_arg_0=1, var_20_arg_1=0, var_23=1, var_24=254, var_24_arg_0=1, var_25_arg_0=1, var_25_arg_1=254, var_70=0, var_7=0] [L169] EXPR var_25_arg_0 & var_25_arg_1 VAL [init_16_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_55_arg_1=1, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_33=15, mask_SORT_3=255, mask_SORT_69=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_33=8, msb_SORT_3=128, msb_SORT_69=512, state_15=0, state_27=0, state_29=0, state_44=0, state_46=0, state_54=1, state_59=0, state_61=0, state_63=0, state_65=0, state_71=0, state_73=0, state_8=0, var_113=104, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_14=0, var_17=0, var_17_arg_0=0, var_18=1, var_19=0, var_19_arg_0=0, var_19_arg_1=1, var_20=1, var_20_arg_0=1, var_20_arg_1=0, var_23=1, var_24=254, var_24_arg_0=1, var_25_arg_0 & var_25_arg_1=1, var_25_arg_0=1, var_25_arg_1=254, var_70=0, var_7=0] [L169] SORT_1 var_25 = var_25_arg_0 & var_25_arg_1; [L170] EXPR var_25 & mask_SORT_1 VAL [init_16_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_55_arg_1=1, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_33=15, mask_SORT_3=255, mask_SORT_69=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_33=8, msb_SORT_3=128, msb_SORT_69=512, state_15=0, state_27=0, state_29=0, state_44=0, state_46=0, state_54=1, state_59=0, state_61=0, state_63=0, state_65=0, state_71=0, state_73=0, state_8=0, var_113=104, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_14=0, var_17=0, var_17_arg_0=0, var_18=1, var_19=0, var_19_arg_0=0, var_19_arg_1=1, var_20=1, var_20_arg_0=1, var_20_arg_1=0, var_23=1, var_24=254, var_24_arg_0=1, var_25 & mask_SORT_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=254, var_70=0, var_7=0] [L170] var_25 = var_25 & mask_SORT_1 [L171] SORT_1 bad_26_arg_0 = var_25; [L172] CALL __VERIFIER_assert(!(bad_26_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 110 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1605 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1605 mSDsluCounter, 3454 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2460 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 645 IncrementalHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 994 mSDtfsCounter, 645 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=4, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 318 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 301 NumberOfCodeBlocks, 301 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 251 ConstructedInterpolants, 0 QuantifiedInterpolants, 969 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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 could not prove your program: unable to determine feasibility of some traces [2023-11-06 22:18:17,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p22.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 81099e1fe8016daaefd672ebf53a7cbfe30573425760bd713b63c430b338ca02 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:18:20,623 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:18:20,746 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-06 22:18:20,755 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:18:20,756 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:18:20,798 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:18:20,799 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:18:20,800 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:18:20,801 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:18:20,806 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:18:20,806 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:18:20,807 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:18:20,807 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:18:20,810 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:18:20,810 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:18:20,810 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:18:20,811 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:18:20,811 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:18:20,812 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:18:20,813 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:18:20,813 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:18:20,814 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:18:20,814 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:18:20,815 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:18:20,815 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:18:20,815 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:18:20,816 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:18:20,816 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:18:20,817 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:18:20,817 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:18:20,819 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:18:20,819 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:18:20,819 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:18:20,820 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:18:20,820 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:18:20,820 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:18:20,820 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:18:20,820 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:18:20,821 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:18:20,822 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_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81099e1fe8016daaefd672ebf53a7cbfe30573425760bd713b63c430b338ca02 [2023-11-06 22:18:21,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:18:21,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:18:21,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:18:21,268 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:18:21,268 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:18:21,271 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p22.c [2023-11-06 22:18:24,433 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:18:24,745 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:18:24,745 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p22.c [2023-11-06 22:18:24,775 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/data/340f90773/1c3f86c60b1b43fb91f271de733a38f3/FLAGc19bb1528 [2023-11-06 22:18:24,795 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/data/340f90773/1c3f86c60b1b43fb91f271de733a38f3 [2023-11-06 22:18:24,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:18:24,803 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:18:24,807 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:18:24,808 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:18:24,813 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:18:24,814 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:18:24" (1/1) ... [2023-11-06 22:18:24,815 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@300719f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:24, skipping insertion in model container [2023-11-06 22:18:24,816 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:18:24" (1/1) ... [2023-11-06 22:18:24,875 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:18:25,090 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_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p22.c[1266,1279] [2023-11-06 22:18:25,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:18:25,331 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:18:25,345 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_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p22.c[1266,1279] [2023-11-06 22:18:25,414 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:18:25,429 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:18:25,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:25 WrapperNode [2023-11-06 22:18:25,430 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:18:25,431 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:18:25,432 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:18:25,432 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:18:25,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:25" (1/1) ... [2023-11-06 22:18:25,459 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:25" (1/1) ... [2023-11-06 22:18:25,510 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 470 [2023-11-06 22:18:25,519 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:18:25,520 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:18:25,521 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:18:25,522 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:18:25,532 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:25" (1/1) ... [2023-11-06 22:18:25,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:25" (1/1) ... [2023-11-06 22:18:25,551 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:25" (1/1) ... [2023-11-06 22:18:25,552 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:25" (1/1) ... [2023-11-06 22:18:25,581 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:25" (1/1) ... [2023-11-06 22:18:25,596 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:25" (1/1) ... [2023-11-06 22:18:25,599 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:25" (1/1) ... [2023-11-06 22:18:25,603 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:25" (1/1) ... [2023-11-06 22:18:25,611 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:18:25,612 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:18:25,612 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:18:25,612 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:18:25,613 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:25" (1/1) ... [2023-11-06 22:18:25,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:18:25,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:18:25,660 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:18:25,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:18:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:18:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:18:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:18:25,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:18:25,918 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:18:25,920 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:18:26,455 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:18:26,460 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:18:26,460 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:18:26,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:18:26 BoogieIcfgContainer [2023-11-06 22:18:26,462 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:18:26,465 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:18:26,465 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:18:26,468 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:18:26,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:18:24" (1/3) ... [2023-11-06 22:18:26,469 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383defcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:18:26, skipping insertion in model container [2023-11-06 22:18:26,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:25" (2/3) ... [2023-11-06 22:18:26,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383defcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:18:26, skipping insertion in model container [2023-11-06 22:18:26,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:18:26" (3/3) ... [2023-11-06 22:18:26,471 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p22.c [2023-11-06 22:18:26,490 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:18:26,490 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:18:26,537 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:18:26,543 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3dce6b48, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:18:26,543 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:18:26,547 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:26,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 22:18:26,553 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:26,554 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:18:26,554 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:18:26,560 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:26,560 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2023-11-06 22:18:26,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:18:26,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364329243] [2023-11-06 22:18:26,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:18:26,578 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:26,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:18:26,586 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:18:26,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-06 22:18:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:26,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-06 22:18:26,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:18:27,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:18:27,101 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:18:27,102 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:18:27,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1364329243] [2023-11-06 22:18:27,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1364329243] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:18:27,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:18:27,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:18:27,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411141611] [2023-11-06 22:18:27,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:18:27,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:18:27,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:18:27,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:18:27,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:18:27,155 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:27,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:18:27,249 INFO L93 Difference]: Finished difference Result 19 states and 27 transitions. [2023-11-06 22:18:27,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:18:27,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-06 22:18:27,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:18:27,260 INFO L225 Difference]: With dead ends: 19 [2023-11-06 22:18:27,260 INFO L226 Difference]: Without dead ends: 10 [2023-11-06 22:18:27,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:18:27,268 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:18:27,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:18:27,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-11-06 22:18:27,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2023-11-06 22:18:27,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:27,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-11-06 22:18:27,302 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2023-11-06 22:18:27,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:18:27,303 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-11-06 22:18:27,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:27,303 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-11-06 22:18:27,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 22:18:27,304 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:27,304 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-06 22:18:27,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:18:27,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:27,516 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:18:27,517 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:27,517 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2023-11-06 22:18:27,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:18:27,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1545259754] [2023-11-06 22:18:27,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:18:27,519 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:27,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:18:27,543 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:18:27,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-06 22:18:27,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:27,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-06 22:18:27,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:18:28,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:18:28,120 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:18:28,680 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:18:28,681 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:18:28,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1545259754] [2023-11-06 22:18:28,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1545259754] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:18:28,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:18:28,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-06 22:18:28,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438021618] [2023-11-06 22:18:28,687 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:18:28,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:18:28,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:18:28,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:18:28,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:18:28,691 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:28,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:18:28,834 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2023-11-06 22:18:28,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:18:28,835 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-06 22:18:28,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:18:28,835 INFO L225 Difference]: With dead ends: 15 [2023-11-06 22:18:28,835 INFO L226 Difference]: Without dead ends: 13 [2023-11-06 22:18:28,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:18:28,837 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:18:28,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 17 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:18:28,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-11-06 22:18:28,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2023-11-06 22:18:28,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:28,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-06 22:18:28,843 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2023-11-06 22:18:28,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:18:28,843 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2023-11-06 22:18:28,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:28,844 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-06 22:18:28,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-06 22:18:28,845 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:28,845 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-11-06 22:18:28,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:18:29,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:29,059 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:18:29,059 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:29,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2023-11-06 22:18:29,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:18:29,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [715023372] [2023-11-06 22:18:29,062 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:18:29,062 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:29,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:18:29,063 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:18:29,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-06 22:18:29,663 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:18:29,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:18:29,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-06 22:18:29,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:18:30,088 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:18:30,088 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:18:34,601 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:18:34,602 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:18:34,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [715023372] [2023-11-06 22:18:34,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [715023372] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:18:34,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:18:34,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-06 22:18:34,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883041451] [2023-11-06 22:18:34,612 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:18:34,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:18:34,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:18:34,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:18:34,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:18:34,617 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:34,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:18:34,829 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2023-11-06 22:18:34,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:18:34,831 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-06 22:18:34,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:18:34,832 INFO L225 Difference]: With dead ends: 18 [2023-11-06 22:18:34,832 INFO L226 Difference]: Without dead ends: 16 [2023-11-06 22:18:34,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:18:34,833 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:18:34,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 21 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:18:34,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-11-06 22:18:34,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2023-11-06 22:18:34,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:34,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-11-06 22:18:34,838 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2023-11-06 22:18:34,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:18:34,841 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-11-06 22:18:34,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:34,842 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-11-06 22:18:34,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-06 22:18:34,842 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:34,843 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2023-11-06 22:18:34,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:18:35,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:35,065 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:18:35,065 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:35,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2023-11-06 22:18:35,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:18:35,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1507107120] [2023-11-06 22:18:35,067 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:18:35,067 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:35,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:18:35,070 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:18:35,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-06 22:18:35,504 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-06 22:18:35,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:18:35,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 74 conjunts are in the unsatisfiable core [2023-11-06 22:18:35,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:18:37,121 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:18:37,121 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:18:48,901 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:18:48,902 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:18:48,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1507107120] [2023-11-06 22:18:48,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1507107120] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:18:48,902 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:18:48,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-06 22:18:48,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972276938] [2023-11-06 22:18:48,903 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:18:48,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 22:18:48,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:18:48,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 22:18:48,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:18:48,905 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:49,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:18:49,038 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2023-11-06 22:18:49,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:18:49,040 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-06 22:18:49,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:18:49,041 INFO L225 Difference]: With dead ends: 15 [2023-11-06 22:18:49,041 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 22:18:49,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:18:49,042 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:18:49,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 9 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:18:49,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 22:18:49,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 22:18:49,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:49,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 22:18:49,045 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2023-11-06 22:18:49,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:18:49,045 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:18:49,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:49,045 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:18:49,045 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 22:18:49,048 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:18:49,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:18:49,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:49,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 22:18:49,368 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 22:18:49,368 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2023-11-06 22:18:49,368 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2023-11-06 22:18:49,369 INFO L895 garLoopResultBuilder]: At program point L118-2(lines 118 407) the Hoare annotation is: (and (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|) (= (_ bv1 8) |ULTIMATE.start_main_~var_23~0#1|) (or (= ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv255 32) ((_ zero_extend 24) |ULTIMATE.start_main_~state_8~0#1|)))) (_ bv0 32)) (= (_ bv1 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~state_15~0#1|) (_ bv1 32)))))) (= |ULTIMATE.start_main_~var_18~0#1| (_ bv1 32)) (exists ((|ULTIMATE.start_main_~var_105_arg_2~0#1| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_105_arg_2~0#1|))) (_ bv1 32))) |ULTIMATE.start_main_~state_46~0#1|)) (= |ULTIMATE.start_main_~var_12~0#1| (_ bv0 32)) (= (_ bv0 8) (bvadd (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_3~0#1|))) [2023-11-06 22:18:49,369 INFO L899 garLoopResultBuilder]: For program point L118-3(lines 118 407) no Hoare annotation was computed. [2023-11-06 22:18:49,369 INFO L899 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2023-11-06 22:18:49,369 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 22:18:49,369 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 23 409) the Hoare annotation is: false [2023-11-06 22:18:49,370 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 22:18:49,370 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 22:18:49,370 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2023-11-06 22:18:49,376 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2023-11-06 22:18:49,378 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:18:49,391 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_105_arg_2~0#1 : bv8 :: ~bvand~32(~zero_extend~32~16(~zero_extend~32~16(ULTIMATE.start_main_~var_105_arg_2~0#1)[7:0]), 1bv32)[7:0] == ~state_46~0) could not be translated [2023-11-06 22:18:49,398 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_105_arg_2~0#1 : bv8 :: ~bvand~32(~zero_extend~32~16(~zero_extend~32~16(ULTIMATE.start_main_~var_105_arg_2~0#1)[7:0]), 1bv32)[7:0] == ~state_46~0) could not be translated [2023-11-06 22:18:49,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:18:49 BoogieIcfgContainer [2023-11-06 22:18:49,400 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:18:49,401 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:18:49,401 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:18:49,401 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:18:49,402 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:18:26" (3/4) ... [2023-11-06 22:18:49,404 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:18:49,431 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-06 22:18:49,433 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:18:49,434 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:18:49,435 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:18:49,559 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:18:49,560 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:18:49,560 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:18:49,561 INFO L158 Benchmark]: Toolchain (without parser) took 24757.29ms. Allocated memory was 75.5MB in the beginning and 497.0MB in the end (delta: 421.5MB). Free memory was 51.1MB in the beginning and 400.5MB in the end (delta: -349.4MB). Peak memory consumption was 73.6MB. Max. memory is 16.1GB. [2023-11-06 22:18:49,561 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 75.5MB. Free memory was 51.2MB in the beginning and 51.1MB in the end (delta: 79.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:18:49,561 INFO L158 Benchmark]: CACSL2BoogieTranslator took 623.29ms. Allocated memory was 75.5MB in the beginning and 113.2MB in the end (delta: 37.7MB). Free memory was 50.8MB in the beginning and 85.5MB in the end (delta: -34.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-06 22:18:49,562 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.28ms. Allocated memory is still 113.2MB. Free memory was 85.5MB in the beginning and 81.7MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:18:49,562 INFO L158 Benchmark]: Boogie Preprocessor took 90.52ms. Allocated memory is still 113.2MB. Free memory was 81.7MB in the beginning and 79.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:18:49,563 INFO L158 Benchmark]: RCFGBuilder took 850.93ms. Allocated memory is still 113.2MB. Free memory was 78.8MB in the beginning and 69.3MB in the end (delta: 9.4MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2023-11-06 22:18:49,563 INFO L158 Benchmark]: TraceAbstraction took 22935.30ms. Allocated memory was 113.2MB in the beginning and 497.0MB in the end (delta: 383.8MB). Free memory was 68.8MB in the beginning and 408.9MB in the end (delta: -340.1MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. [2023-11-06 22:18:49,564 INFO L158 Benchmark]: Witness Printer took 159.18ms. Allocated memory is still 497.0MB. Free memory was 408.9MB in the beginning and 400.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:18:49,566 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 75.5MB. Free memory was 51.2MB in the beginning and 51.1MB in the end (delta: 79.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 623.29ms. Allocated memory was 75.5MB in the beginning and 113.2MB in the end (delta: 37.7MB). Free memory was 50.8MB in the beginning and 85.5MB in the end (delta: -34.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.28ms. Allocated memory is still 113.2MB. Free memory was 85.5MB in the beginning and 81.7MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.52ms. Allocated memory is still 113.2MB. Free memory was 81.7MB in the beginning and 79.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 850.93ms. Allocated memory is still 113.2MB. Free memory was 78.8MB in the beginning and 69.3MB in the end (delta: 9.4MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. * TraceAbstraction took 22935.30ms. Allocated memory was 113.2MB in the beginning and 497.0MB in the end (delta: 383.8MB). Free memory was 68.8MB in the beginning and 408.9MB in the end (delta: -340.1MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. * Witness Printer took 159.18ms. Allocated memory is still 497.0MB. Free memory was 408.9MB in the beginning and 400.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_105_arg_2~0#1 : bv8 :: ~bvand~32(~zero_extend~32~16(~zero_extend~32~16(ULTIMATE.start_main_~var_105_arg_2~0#1)[7:0]), 1bv32)[7:0] == ~state_46~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_105_arg_2~0#1 : bv8 :: ~bvand~32(~zero_extend~32~16(~zero_extend~32~16(ULTIMATE.start_main_~var_105_arg_2~0#1)[7:0]), 1bv32)[7:0] == ~state_46~0) could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.9s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 14 mSDtfsCounter, 56 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=3, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 46 HoareAnnotationTreeSize, 2 FomulaSimplifications, 51 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 153 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 19.4s InterpolantComputationTime, 38 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 64 ConstructedInterpolants, 25 QuantifiedInterpolants, 23009 SizeOfPredicates, 172 NumberOfNonLiveVariables, 1512 ConjunctsInSsa, 173 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 12/48 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 118]: Loop Invariant [2023-11-06 22:18:49,576 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_105_arg_2~0#1 : bv8 :: ~bvand~32(~zero_extend~32~16(~zero_extend~32~16(ULTIMATE.start_main_~var_105_arg_2~0#1)[7:0]), 1bv32)[7:0] == ~state_46~0) could not be translated [2023-11-06 22:18:49,577 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_105_arg_2~0#1 : bv8 :: ~bvand~32(~zero_extend~32~16(~zero_extend~32~16(ULTIMATE.start_main_~var_105_arg_2~0#1)[7:0]), 1bv32)[7:0] == ~state_46~0) could not be translated Derived loop invariant: ((((((1 == mask_SORT_1) && (1 == var_23)) && ((((255 & state_8) & 127) == 0) || (1 == ((state_15 & 1) & 127)))) && (var_18 == 1)) && (var_12 == 0)) && (0 == ((1 + mask_SORT_3) % 256))) RESULT: Ultimate proved your program to be correct! [2023-11-06 22:18:49,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbdcc3-7b00-4558-a31b-2adf5ba70a2d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE