./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/num_conversion_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/num_conversion_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bdb7543d1c240ce49edc036e26416805e34b577c5ba56fd044d3b26828ca42a8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:29:49,487 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:29:49,553 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 05:29:49,559 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:29:49,559 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:29:49,583 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:29:49,584 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:29:49,585 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:29:49,585 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:29:49,586 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:29:49,587 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:29:49,587 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:29:49,588 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:29:49,589 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:29:49,589 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:29:49,597 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:29:49,597 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:29:49,598 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:29:49,598 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:29:49,599 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:29:49,599 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:29:49,600 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:29:49,601 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:29:49,601 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:29:49,602 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:29:49,602 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:29:49,603 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:29:49,603 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:29:49,604 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:29:49,604 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:29:49,604 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:29:49,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:29:49,605 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:29:49,605 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:29:49,605 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:29:49,606 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:29:49,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:29:49,606 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:29:49,606 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:29:49,606 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:29:49,606 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:29:49,607 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:29:49,607 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_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdb7543d1c240ce49edc036e26416805e34b577c5ba56fd044d3b26828ca42a8 [2023-11-29 05:29:49,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:29:49,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:29:49,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:29:49,864 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:29:49,864 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:29:49,865 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/bitvector/num_conversion_1.c [2023-11-29 05:29:52,607 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:29:52,799 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:29:52,800 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/sv-benchmarks/c/bitvector/num_conversion_1.c [2023-11-29 05:29:52,806 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/data/320dba054/25ae826bd962488f81b829bcb60e81e3/FLAG545e30317 [2023-11-29 05:29:52,818 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/data/320dba054/25ae826bd962488f81b829bcb60e81e3 [2023-11-29 05:29:52,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:29:52,828 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:29:52,829 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:29:52,829 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:29:52,835 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:29:52,836 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:29:52" (1/1) ... [2023-11-29 05:29:52,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5264726e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:29:52, skipping insertion in model container [2023-11-29 05:29:52,837 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:29:52" (1/1) ... [2023-11-29 05:29:52,858 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:29:53,006 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_2529c629-2930-4bd2-bf49-3910d56e18bd/sv-benchmarks/c/bitvector/num_conversion_1.c[673,686] [2023-11-29 05:29:53,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:29:53,035 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:29:53,048 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_2529c629-2930-4bd2-bf49-3910d56e18bd/sv-benchmarks/c/bitvector/num_conversion_1.c[673,686] [2023-11-29 05:29:53,054 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:29:53,070 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:29:53,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:29:53 WrapperNode [2023-11-29 05:29:53,070 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:29:53,071 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:29:53,072 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:29:53,072 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:29:53,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:29:53" (1/1) ... [2023-11-29 05:29:53,087 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:29:53" (1/1) ... [2023-11-29 05:29:53,111 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2023-11-29 05:29:53,112 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:29:53,113 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:29:53,113 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:29:53,113 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:29:53,125 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:29:53" (1/1) ... [2023-11-29 05:29:53,125 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:29:53" (1/1) ... [2023-11-29 05:29:53,127 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:29:53" (1/1) ... [2023-11-29 05:29:53,140 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 05:29:53,140 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:29:53" (1/1) ... [2023-11-29 05:29:53,141 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:29:53" (1/1) ... [2023-11-29 05:29:53,145 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:29:53" (1/1) ... [2023-11-29 05:29:53,148 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:29:53" (1/1) ... [2023-11-29 05:29:53,149 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:29:53" (1/1) ... [2023-11-29 05:29:53,150 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:29:53" (1/1) ... [2023-11-29 05:29:53,153 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:29:53,154 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:29:53,154 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:29:53,154 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:29:53,155 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:29:53" (1/1) ... [2023-11-29 05:29:53,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:29:53,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:29:53,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:29:53,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:29:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:29:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:29:53,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:29:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:29:53,296 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:29:53,299 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:29:53,441 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:29:53,464 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:29:53,464 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 05:29:53,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:29:53 BoogieIcfgContainer [2023-11-29 05:29:53,465 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:29:53,468 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:29:53,468 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:29:53,472 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:29:53,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:29:52" (1/3) ... [2023-11-29 05:29:53,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@389776ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:29:53, skipping insertion in model container [2023-11-29 05:29:53,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:29:53" (2/3) ... [2023-11-29 05:29:53,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@389776ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:29:53, skipping insertion in model container [2023-11-29 05:29:53,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:29:53" (3/3) ... [2023-11-29 05:29:53,475 INFO L112 eAbstractionObserver]: Analyzing ICFG num_conversion_1.c [2023-11-29 05:29:53,495 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:29:53,495 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 05:29:53,551 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:29:53,564 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@bf8a3cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:29:53,564 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 05:29:53,568 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 14 states have internal predecessors, (21), 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) [2023-11-29 05:29:53,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 05:29:53,574 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:29:53,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 05:29:53,575 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:29:53,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:29:53,580 INFO L85 PathProgramCache]: Analyzing trace with hash 82472508, now seen corresponding path program 1 times [2023-11-29 05:29:53,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:29:53,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104171536] [2023-11-29 05:29:53,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:29:53,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:29:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:29:53,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:29:53,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:29:53,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104171536] [2023-11-29 05:29:53,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104171536] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:29:53,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:29:53,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:29:53,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486481000] [2023-11-29 05:29:53,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:29:53,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 05:29:53,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:29:53,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 05:29:53,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 05:29:53,740 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2023-11-29 05:29:53,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:29:53,758 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2023-11-29 05:29:53,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 05:29:53,761 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 [2023-11-29 05:29:53,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:29:53,769 INFO L225 Difference]: With dead ends: 21 [2023-11-29 05:29:53,770 INFO L226 Difference]: Without dead ends: 13 [2023-11-29 05:29:53,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 05:29:53,777 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:29:53,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:29:53,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-11-29 05:29:53,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-11-29 05:29:53,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 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) [2023-11-29 05:29:53,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2023-11-29 05:29:53,807 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 17 transitions. Word has length 5 [2023-11-29 05:29:53,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:29:53,807 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 17 transitions. [2023-11-29 05:29:53,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2023-11-29 05:29:53,807 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2023-11-29 05:29:53,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 05:29:53,808 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:29:53,808 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 05:29:53,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:29:53,809 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:29:53,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:29:53,810 INFO L85 PathProgramCache]: Analyzing trace with hash 81578778, now seen corresponding path program 1 times [2023-11-29 05:29:53,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:29:53,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143901323] [2023-11-29 05:29:53,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:29:53,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:29:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:29:53,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:29:53,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:29:53,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143901323] [2023-11-29 05:29:53,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143901323] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:29:53,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:29:53,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:29:53,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713548020] [2023-11-29 05:29:53,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:29:53,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:29:53,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:29:53,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:29:53,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:29:53,899 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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) [2023-11-29 05:29:53,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:29:53,922 INFO L93 Difference]: Finished difference Result 33 states and 46 transitions. [2023-11-29 05:29:53,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:29:53,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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 [2023-11-29 05:29:53,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:29:53,924 INFO L225 Difference]: With dead ends: 33 [2023-11-29 05:29:53,924 INFO L226 Difference]: Without dead ends: 21 [2023-11-29 05:29:53,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:29:53,926 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 10 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:29:53,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 24 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:29:53,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-11-29 05:29:53,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 15. [2023-11-29 05:29:53,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:29:53,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2023-11-29 05:29:53,932 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 19 transitions. Word has length 5 [2023-11-29 05:29:53,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:29:53,933 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 19 transitions. [2023-11-29 05:29:53,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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) [2023-11-29 05:29:53,933 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2023-11-29 05:29:53,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 05:29:53,934 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:29:53,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:29:53,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 05:29:53,934 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:29:53,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:29:53,935 INFO L85 PathProgramCache]: Analyzing trace with hash -964022906, now seen corresponding path program 1 times [2023-11-29 05:29:53,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:29:53,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82814552] [2023-11-29 05:29:53,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:29:53,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:29:53,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:29:54,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:29:54,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:29:54,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82814552] [2023-11-29 05:29:54,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82814552] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:29:54,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:29:54,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:29:54,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841968362] [2023-11-29 05:29:54,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:29:54,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:29:54,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:29:54,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:29:54,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:29:54,080 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:29:54,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:29:54,104 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2023-11-29 05:29:54,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:29:54,105 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-29 05:29:54,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:29:54,105 INFO L225 Difference]: With dead ends: 30 [2023-11-29 05:29:54,105 INFO L226 Difference]: Without dead ends: 18 [2023-11-29 05:29:54,106 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 [2023-11-29 05:29:54,108 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:29:54,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 37 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:29:54,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-11-29 05:29:54,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2023-11-29 05:29:54,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 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) [2023-11-29 05:29:54,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2023-11-29 05:29:54,113 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 12 [2023-11-29 05:29:54,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:29:54,114 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2023-11-29 05:29:54,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:29:54,114 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2023-11-29 05:29:54,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 05:29:54,115 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:29:54,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:29:54,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 05:29:54,116 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:29:54,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:29:54,117 INFO L85 PathProgramCache]: Analyzing trace with hash -906764604, now seen corresponding path program 1 times [2023-11-29 05:29:54,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:29:54,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064302516] [2023-11-29 05:29:54,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:29:54,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:29:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:29:54,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:29:54,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:29:54,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064302516] [2023-11-29 05:29:54,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064302516] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:29:54,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:29:54,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:29:54,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341779400] [2023-11-29 05:29:54,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:29:54,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:29:54,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:29:54,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:29:54,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:29:54,327 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:29:54,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:29:54,370 INFO L93 Difference]: Finished difference Result 37 states and 48 transitions. [2023-11-29 05:29:54,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:29:54,371 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-29 05:29:54,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:29:54,371 INFO L225 Difference]: With dead ends: 37 [2023-11-29 05:29:54,371 INFO L226 Difference]: Without dead ends: 23 [2023-11-29 05:29:54,372 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 [2023-11-29 05:29:54,374 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 25 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:29:54,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 24 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:29:54,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-29 05:29:54,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2023-11-29 05:29:54,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 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) [2023-11-29 05:29:54,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2023-11-29 05:29:54,382 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 12 [2023-11-29 05:29:54,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:29:54,382 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2023-11-29 05:29:54,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:29:54,383 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2023-11-29 05:29:54,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 05:29:54,383 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:29:54,383 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:29:54,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 05:29:54,384 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:29:54,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:29:54,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1082659288, now seen corresponding path program 1 times [2023-11-29 05:29:54,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:29:54,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081001091] [2023-11-29 05:29:54,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:29:54,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:29:54,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:29:54,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:29:54,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:29:54,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081001091] [2023-11-29 05:29:54,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081001091] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:29:54,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429234267] [2023-11-29 05:29:54,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:29:54,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:29:54,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:29:54,489 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:29:54,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 05:29:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:29:54,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:29:54,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:29:54,622 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:29:54,622 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:29:54,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429234267] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:29:54,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:29:54,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 6 [2023-11-29 05:29:54,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335127998] [2023-11-29 05:29:54,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:29:54,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:29:54,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:29:54,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:29:54,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:29:54,625 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2023-11-29 05:29:54,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:29:54,651 INFO L93 Difference]: Finished difference Result 50 states and 64 transitions. [2023-11-29 05:29:54,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:29:54,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) Word has length 13 [2023-11-29 05:29:54,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:29:54,653 INFO L225 Difference]: With dead ends: 50 [2023-11-29 05:29:54,653 INFO L226 Difference]: Without dead ends: 33 [2023-11-29 05:29:54,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:29:54,655 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 12 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:29:54,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 40 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:29:54,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-29 05:29:54,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 25. [2023-11-29 05:29:54,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 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) [2023-11-29 05:29:54,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2023-11-29 05:29:54,662 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 13 [2023-11-29 05:29:54,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:29:54,662 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2023-11-29 05:29:54,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2023-11-29 05:29:54,663 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2023-11-29 05:29:54,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 05:29:54,663 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:29:54,664 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:29:54,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 05:29:54,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:29:54,868 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:29:54,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:29:54,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1526641204, now seen corresponding path program 1 times [2023-11-29 05:29:54,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:29:54,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794966718] [2023-11-29 05:29:54,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:29:54,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:29:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:29:54,983 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:29:54,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:29:54,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794966718] [2023-11-29 05:29:54,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794966718] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:29:54,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460639356] [2023-11-29 05:29:54,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:29:54,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:29:54,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:29:54,988 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:29:54,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 05:29:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:29:55,051 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 05:29:55,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:29:55,141 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:29:55,142 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:29:55,260 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:29:55,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460639356] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:29:55,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:29:55,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 15 [2023-11-29 05:29:55,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411554953] [2023-11-29 05:29:55,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:29:55,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 05:29:55,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:29:55,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 05:29:55,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:29:55,264 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 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) [2023-11-29 05:29:55,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:29:55,441 INFO L93 Difference]: Finished difference Result 92 states and 122 transitions. [2023-11-29 05:29:55,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 05:29:55,444 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 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 20 [2023-11-29 05:29:55,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:29:55,445 INFO L225 Difference]: With dead ends: 92 [2023-11-29 05:29:55,445 INFO L226 Difference]: Without dead ends: 70 [2023-11-29 05:29:55,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=208, Unknown=0, NotChecked=0, Total=342 [2023-11-29 05:29:55,446 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 127 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:29:55,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 129 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:29:55,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-11-29 05:29:55,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 64. [2023-11-29 05:29:55,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 63 states have internal predecessors, (83), 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) [2023-11-29 05:29:55,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 83 transitions. [2023-11-29 05:29:55,457 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 83 transitions. Word has length 20 [2023-11-29 05:29:55,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:29:55,457 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 83 transitions. [2023-11-29 05:29:55,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 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) [2023-11-29 05:29:55,458 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 83 transitions. [2023-11-29 05:29:55,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 05:29:55,459 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:29:55,459 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:29:55,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 05:29:55,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:29:55,664 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:29:55,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:29:55,664 INFO L85 PathProgramCache]: Analyzing trace with hash -991806156, now seen corresponding path program 2 times [2023-11-29 05:29:55,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:29:55,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087089755] [2023-11-29 05:29:55,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:29:55,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:29:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:29:55,943 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:29:55,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:29:55,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087089755] [2023-11-29 05:29:55,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087089755] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:29:55,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002451156] [2023-11-29 05:29:55,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:29:55,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:29:55,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:29:55,945 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:29:55,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 05:29:56,113 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:29:56,113 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:29:56,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 44 conjunts are in the unsatisfiable core [2023-11-29 05:29:56,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:29:56,631 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:29:56,631 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:29:57,693 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 11 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:29:57,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002451156] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:29:57,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:29:57,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 16] total 33 [2023-11-29 05:29:57,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341720934] [2023-11-29 05:29:57,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:29:57,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-11-29 05:29:57,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:29:57,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-11-29 05:29:57,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=776, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 05:29:57,697 INFO L87 Difference]: Start difference. First operand 64 states and 83 transitions. Second operand has 33 states, 33 states have (on average 4.242424242424242) internal successors, (140), 33 states have internal predecessors, (140), 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) [2023-11-29 05:30:08,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:30:08,119 INFO L93 Difference]: Finished difference Result 555 states and 750 transitions. [2023-11-29 05:30:08,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2023-11-29 05:30:08,119 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.242424242424242) internal successors, (140), 33 states have internal predecessors, (140), 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 48 [2023-11-29 05:30:08,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:30:08,123 INFO L225 Difference]: With dead ends: 555 [2023-11-29 05:30:08,123 INFO L226 Difference]: Without dead ends: 492 [2023-11-29 05:30:08,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3056 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=2050, Invalid=5782, Unknown=0, NotChecked=0, Total=7832 [2023-11-29 05:30:08,127 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 476 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:30:08,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 276 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 05:30:08,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2023-11-29 05:30:08,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 335. [2023-11-29 05:30:08,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 334 states have (on average 1.3652694610778444) internal successors, (456), 334 states have internal predecessors, (456), 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) [2023-11-29 05:30:08,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 456 transitions. [2023-11-29 05:30:08,157 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 456 transitions. Word has length 48 [2023-11-29 05:30:08,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:30:08,158 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 456 transitions. [2023-11-29 05:30:08,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.242424242424242) internal successors, (140), 33 states have internal predecessors, (140), 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) [2023-11-29 05:30:08,158 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 456 transitions. [2023-11-29 05:30:08,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 05:30:08,161 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:30:08,161 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:30:08,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 05:30:08,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 05:30:08,363 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:30:08,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:08,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1369346740, now seen corresponding path program 3 times [2023-11-29 05:30:08,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:30:08,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750795596] [2023-11-29 05:30:08,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:08,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:30:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:30:08,403 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:30:08,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:30:08,470 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:30:08,471 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 05:30:08,472 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 05:30:08,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 05:30:08,478 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1] [2023-11-29 05:30:08,483 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 05:30:08,505 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-29 05:30:08,506 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-29 05:30:08,506 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-29 05:30:08,507 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-29 05:30:08,507 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-29 05:30:08,507 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-29 05:30:08,508 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-29 05:30:08,508 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-29 05:30:08,509 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-29 05:30:08,509 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-29 05:30:08,510 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-29 05:30:08,510 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-29 05:30:08,511 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-29 05:30:08,511 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-29 05:30:08,511 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-29 05:30:08,512 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-29 05:30:08,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 05:30:08 BoogieIcfgContainer [2023-11-29 05:30:08,524 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 05:30:08,524 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:30:08,525 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:30:08,525 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:30:08,525 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:29:53" (3/4) ... [2023-11-29 05:30:08,528 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 05:30:08,529 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:30:08,530 INFO L158 Benchmark]: Toolchain (without parser) took 15702.17ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 118.2MB in the beginning and 141.8MB in the end (delta: -23.6MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2023-11-29 05:30:08,531 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 121.6MB. Free memory is still 96.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:30:08,531 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.44ms. Allocated memory is still 146.8MB. Free memory was 118.2MB in the beginning and 107.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 05:30:08,531 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.56ms. Allocated memory is still 146.8MB. Free memory was 107.7MB in the beginning and 105.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:30:08,532 INFO L158 Benchmark]: Boogie Preprocessor took 40.19ms. Allocated memory is still 146.8MB. Free memory was 105.6MB in the beginning and 104.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:30:08,532 INFO L158 Benchmark]: RCFGBuilder took 311.55ms. Allocated memory is still 146.8MB. Free memory was 104.4MB in the beginning and 92.4MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 05:30:08,533 INFO L158 Benchmark]: TraceAbstraction took 15056.10ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 91.8MB in the beginning and 141.8MB in the end (delta: -50.0MB). Peak memory consumption was 77.7MB. Max. memory is 16.1GB. [2023-11-29 05:30:08,533 INFO L158 Benchmark]: Witness Printer took 5.26ms. Allocated memory is still 176.2MB. Free memory is still 141.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:30:08,535 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 121.6MB. Free memory is still 96.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 241.44ms. Allocated memory is still 146.8MB. Free memory was 118.2MB in the beginning and 107.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.56ms. Allocated memory is still 146.8MB. Free memory was 107.7MB in the beginning and 105.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.19ms. Allocated memory is still 146.8MB. Free memory was 105.6MB in the beginning and 104.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 311.55ms. Allocated memory is still 146.8MB. Free memory was 104.4MB in the beginning and 92.4MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 15056.10ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 91.8MB in the beginning and 141.8MB in the end (delta: -50.0MB). Peak memory consumption was 77.7MB. Max. memory is 16.1GB. * Witness Printer took 5.26ms. Allocated memory is still 176.2MB. Free memory is still 141.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 16]: 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 shiftLeft at line 32, overapproximation of bitwiseAnd at line 33. Possible FailurePath: [L24] unsigned char x; [L25] unsigned char y; [L26] unsigned char c; [L28] x = 37 [L29] y = 0 [L30] c = 0 VAL [c=0, x=37, y=0] [L31] COND TRUE c < (unsigned char)8 VAL [c=0, x=37, y=0] [L32] EXPR ((unsigned char)1) << c VAL [c=0, x=37, y=0] [L32] unsigned char i = ((unsigned char)1) << c; [L33] EXPR x & i VAL [c=0, i=1, x=37, y=0] [L33] unsigned char bit = x & i; [L34] COND TRUE, EXPR bit != (unsigned char)0 [L35] EXPR y = y + i VAL [bit=1, c=0, i=1, x=37, y=1] [L37] EXPR c = c + ((unsigned char)1) [L31-L38] { unsigned char i = ((unsigned char)1) << c; unsigned char bit = x & i; if (bit != (unsigned char)0) { y = y + i; } c = c + ((unsigned char)1); } VAL [c=1, x=37, y=1] [L31] COND TRUE c < (unsigned char)8 VAL [c=1, x=37, y=1] [L32] EXPR ((unsigned char)1) << c VAL [c=1, x=37, y=1] [L32] unsigned char i = ((unsigned char)1) << c; [L33] EXPR x & i VAL [c=1, i=0, x=37, y=1] [L33] unsigned char bit = x & i; [L34] COND FALSE, EXPR !(bit != (unsigned char)0) VAL [bit=0, c=1, i=0, x=37, y=1] [L37] EXPR c = c + ((unsigned char)1) [L31-L38] { unsigned char i = ((unsigned char)1) << c; unsigned char bit = x & i; if (bit != (unsigned char)0) { y = y + i; } c = c + ((unsigned char)1); } VAL [c=2, x=37, y=1] [L31] COND TRUE c < (unsigned char)8 VAL [c=2, x=37, y=1] [L32] EXPR ((unsigned char)1) << c VAL [c=2, x=37, y=1] [L32] unsigned char i = ((unsigned char)1) << c; [L33] EXPR x & i VAL [c=2, i=0, x=37, y=1] [L33] unsigned char bit = x & i; [L34] COND FALSE, EXPR !(bit != (unsigned char)0) VAL [bit=0, c=2, i=0, x=37, y=1] [L37] EXPR c = c + ((unsigned char)1) [L31-L38] { unsigned char i = ((unsigned char)1) << c; unsigned char bit = x & i; if (bit != (unsigned char)0) { y = y + i; } c = c + ((unsigned char)1); } VAL [c=3, x=37, y=1] [L31] COND TRUE c < (unsigned char)8 VAL [c=3, x=37, y=1] [L32] EXPR ((unsigned char)1) << c VAL [c=3, x=37, y=1] [L32] unsigned char i = ((unsigned char)1) << c; [L33] EXPR x & i VAL [c=3, i=0, x=37, y=1] [L33] unsigned char bit = x & i; [L34] COND FALSE, EXPR !(bit != (unsigned char)0) VAL [bit=0, c=3, i=0, x=37, y=1] [L37] EXPR c = c + ((unsigned char)1) [L31-L38] { unsigned char i = ((unsigned char)1) << c; unsigned char bit = x & i; if (bit != (unsigned char)0) { y = y + i; } c = c + ((unsigned char)1); } VAL [c=4, x=37, y=1] [L31] COND TRUE c < (unsigned char)8 VAL [c=4, x=37, y=1] [L32] EXPR ((unsigned char)1) << c VAL [c=4, x=37, y=1] [L32] unsigned char i = ((unsigned char)1) << c; [L33] EXPR x & i VAL [c=4, i=0, x=37, y=1] [L33] unsigned char bit = x & i; [L34] COND FALSE, EXPR !(bit != (unsigned char)0) VAL [bit=0, c=4, i=0, x=37, y=1] [L37] EXPR c = c + ((unsigned char)1) [L31-L38] { unsigned char i = ((unsigned char)1) << c; unsigned char bit = x & i; if (bit != (unsigned char)0) { y = y + i; } c = c + ((unsigned char)1); } VAL [c=5, x=37, y=1] [L31] COND TRUE c < (unsigned char)8 VAL [c=5, x=37, y=1] [L32] EXPR ((unsigned char)1) << c VAL [c=5, x=37, y=1] [L32] unsigned char i = ((unsigned char)1) << c; [L33] EXPR x & i VAL [c=5, i=0, x=37, y=1] [L33] unsigned char bit = x & i; [L34] COND FALSE, EXPR !(bit != (unsigned char)0) VAL [bit=0, c=5, i=0, x=37, y=1] [L37] EXPR c = c + ((unsigned char)1) [L31-L38] { unsigned char i = ((unsigned char)1) << c; unsigned char bit = x & i; if (bit != (unsigned char)0) { y = y + i; } c = c + ((unsigned char)1); } VAL [c=6, x=37, y=1] [L31] COND TRUE c < (unsigned char)8 VAL [c=6, x=37, y=1] [L32] EXPR ((unsigned char)1) << c VAL [c=6, x=37, y=1] [L32] unsigned char i = ((unsigned char)1) << c; [L33] EXPR x & i VAL [c=6, i=0, x=37, y=1] [L33] unsigned char bit = x & i; [L34] COND FALSE, EXPR !(bit != (unsigned char)0) VAL [bit=0, c=6, i=0, x=37, y=1] [L37] EXPR c = c + ((unsigned char)1) [L31-L38] { unsigned char i = ((unsigned char)1) << c; unsigned char bit = x & i; if (bit != (unsigned char)0) { y = y + i; } c = c + ((unsigned char)1); } VAL [c=7, x=37, y=1] [L31] COND TRUE c < (unsigned char)8 VAL [c=7, x=37, y=1] [L32] EXPR ((unsigned char)1) << c VAL [c=7, x=37, y=1] [L32] unsigned char i = ((unsigned char)1) << c; [L33] EXPR x & i VAL [c=7, i=0, x=37, y=1] [L33] unsigned char bit = x & i; [L34] COND FALSE, EXPR !(bit != (unsigned char)0) VAL [bit=0, c=7, i=0, x=37, y=1] [L37] EXPR c = c + ((unsigned char)1) [L31-L38] { unsigned char i = ((unsigned char)1) << c; unsigned char bit = x & i; if (bit != (unsigned char)0) { y = y + i; } c = c + ((unsigned char)1); } VAL [c=8, x=37, y=1] [L31] COND FALSE !(c < (unsigned char)8) VAL [c=8, x=37, y=1] [L39] CALL __VERIFIER_assert(x == y) [L15] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L16] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.9s, OverallIterations: 8, TraceHistogramMax: 8, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 10.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 651 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 651 mSDsluCounter, 547 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 430 mSDsCounter, 110 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 887 IncrementalHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 110 mSolverCounterUnsat, 117 mSDtfsCounter, 887 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 246 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3149 ImplicationChecksByTransitivity, 10.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=335occurred in iteration=7, InterpolantAutomatonStates: 110, 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, 7 MinimizatonAttempts, 181 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 258 NumberOfCodeBlocks, 258 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 252 ConstructedInterpolants, 0 QuantifiedInterpolants, 2340 SizeOfPredicates, 3 NumberOfNonLiveVariables, 252 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 20/364 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 [2023-11-29 05:30:08,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/num_conversion_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bdb7543d1c240ce49edc036e26416805e34b577c5ba56fd044d3b26828ca42a8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:30:10,483 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:30:10,561 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 05:30:10,568 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:30:10,568 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:30:10,596 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:30:10,596 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:30:10,597 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:30:10,598 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:30:10,598 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:30:10,599 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:30:10,599 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:30:10,600 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:30:10,601 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:30:10,601 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:30:10,602 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:30:10,602 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:30:10,603 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:30:10,603 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:30:10,604 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:30:10,604 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:30:10,605 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:30:10,605 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:30:10,605 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 05:30:10,606 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 05:30:10,606 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 05:30:10,607 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:30:10,607 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:30:10,607 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:30:10,608 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:30:10,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:30:10,609 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:30:10,609 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:30:10,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:30:10,609 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:30:10,610 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:30:10,610 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:30:10,610 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 05:30:10,610 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 05:30:10,611 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:30:10,611 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:30:10,611 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:30:10,612 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:30:10,612 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:30:10,612 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 05:30:10,612 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_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdb7543d1c240ce49edc036e26416805e34b577c5ba56fd044d3b26828ca42a8 [2023-11-29 05:30:10,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:30:10,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:30:10,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:30:10,913 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:30:10,914 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:30:10,915 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/bitvector/num_conversion_1.c [2023-11-29 05:30:13,710 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:30:13,885 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:30:13,886 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/sv-benchmarks/c/bitvector/num_conversion_1.c [2023-11-29 05:30:13,893 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/data/35827bd7c/3d630a8b9b724d34887d47af4115fbec/FLAGde2ec3f5d [2023-11-29 05:30:13,909 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/data/35827bd7c/3d630a8b9b724d34887d47af4115fbec [2023-11-29 05:30:13,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:30:13,913 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:30:13,914 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:30:13,914 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:30:13,919 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:30:13,920 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:30:13" (1/1) ... [2023-11-29 05:30:13,921 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3497717e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:13, skipping insertion in model container [2023-11-29 05:30:13,921 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:30:13" (1/1) ... [2023-11-29 05:30:13,941 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:30:14,080 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_2529c629-2930-4bd2-bf49-3910d56e18bd/sv-benchmarks/c/bitvector/num_conversion_1.c[673,686] [2023-11-29 05:30:14,092 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:30:14,103 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:30:14,113 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_2529c629-2930-4bd2-bf49-3910d56e18bd/sv-benchmarks/c/bitvector/num_conversion_1.c[673,686] [2023-11-29 05:30:14,118 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:30:14,129 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:30:14,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:14 WrapperNode [2023-11-29 05:30:14,130 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:30:14,131 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:30:14,131 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:30:14,131 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:30:14,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:14" (1/1) ... [2023-11-29 05:30:14,142 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:14" (1/1) ... [2023-11-29 05:30:14,156 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2023-11-29 05:30:14,156 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:30:14,157 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:30:14,157 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:30:14,157 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:30:14,165 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:14" (1/1) ... [2023-11-29 05:30:14,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:14" (1/1) ... [2023-11-29 05:30:14,167 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:14" (1/1) ... [2023-11-29 05:30:14,177 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 05:30:14,177 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:14" (1/1) ... [2023-11-29 05:30:14,177 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:14" (1/1) ... [2023-11-29 05:30:14,182 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:14" (1/1) ... [2023-11-29 05:30:14,185 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:14" (1/1) ... [2023-11-29 05:30:14,186 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:14" (1/1) ... [2023-11-29 05:30:14,187 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:14" (1/1) ... [2023-11-29 05:30:14,189 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:30:14,190 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:30:14,190 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:30:14,190 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:30:14,191 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:14" (1/1) ... [2023-11-29 05:30:14,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:30:14,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:30:14,216 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:30:14,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:30:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:30:14,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:30:14,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:30:14,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 05:30:14,342 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:30:14,344 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:30:14,446 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:30:14,476 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:30:14,476 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 05:30:14,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:30:14 BoogieIcfgContainer [2023-11-29 05:30:14,477 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:30:14,480 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:30:14,480 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:30:14,482 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:30:14,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:30:13" (1/3) ... [2023-11-29 05:30:14,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9858059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:30:14, skipping insertion in model container [2023-11-29 05:30:14,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:14" (2/3) ... [2023-11-29 05:30:14,484 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9858059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:30:14, skipping insertion in model container [2023-11-29 05:30:14,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:30:14" (3/3) ... [2023-11-29 05:30:14,485 INFO L112 eAbstractionObserver]: Analyzing ICFG num_conversion_1.c [2023-11-29 05:30:14,500 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:30:14,501 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 05:30:14,540 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:30:14,547 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4ec11e37, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:30:14,547 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 05:30:14,551 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.625) internal successors, (13), 9 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) [2023-11-29 05:30:14,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 05:30:14,557 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:30:14,557 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 05:30:14,558 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:30:14,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:14,563 INFO L85 PathProgramCache]: Analyzing trace with hash 64340713, now seen corresponding path program 1 times [2023-11-29 05:30:14,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:30:14,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828749026] [2023-11-29 05:30:14,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:14,575 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 [2023-11-29 05:30:14,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:30:14,624 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 05:30:14,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 05:30:14,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:30:14,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 05:30:14,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:30:14,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:30:14,690 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:30:14,691 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:30:14,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828749026] [2023-11-29 05:30:14,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828749026] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:30:14,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:30:14,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:30:14,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173521365] [2023-11-29 05:30:14,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:30:14,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 05:30:14,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:30:14,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 05:30:14,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 05:30:14,726 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.625) internal successors, (13), 9 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 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2023-11-29 05:30:14,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:30:14,747 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2023-11-29 05:30:14,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 05:30:14,750 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 [2023-11-29 05:30:14,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:30:14,756 INFO L225 Difference]: With dead ends: 16 [2023-11-29 05:30:14,756 INFO L226 Difference]: Without dead ends: 8 [2023-11-29 05:30:14,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 05:30:14,761 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:30:14,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:30:14,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2023-11-29 05:30:14,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-11-29 05:30:14,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 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) [2023-11-29 05:30:14,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2023-11-29 05:30:14,786 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 5 [2023-11-29 05:30:14,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:30:14,786 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2023-11-29 05:30:14,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2023-11-29 05:30:14,787 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-11-29 05:30:14,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 05:30:14,787 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:30:14,787 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 05:30:14,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 05:30:14,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 05:30:14,989 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:30:14,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:14,989 INFO L85 PathProgramCache]: Analyzing trace with hash 64013012, now seen corresponding path program 1 times [2023-11-29 05:30:14,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:30:14,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1445129403] [2023-11-29 05:30:14,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:14,990 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 [2023-11-29 05:30:14,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:30:14,992 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 05:30:14,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 05:30:15,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:30:15,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:30:15,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:30:15,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:30:15,035 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:30:15,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:30:15,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1445129403] [2023-11-29 05:30:15,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1445129403] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:30:15,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:30:15,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:30:15,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886244943] [2023-11-29 05:30:15,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:30:15,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:30:15,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:30:15,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:30:15,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:30:15,039 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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) [2023-11-29 05:30:15,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:30:15,053 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2023-11-29 05:30:15,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:30:15,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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 [2023-11-29 05:30:15,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:30:15,055 INFO L225 Difference]: With dead ends: 15 [2023-11-29 05:30:15,055 INFO L226 Difference]: Without dead ends: 11 [2023-11-29 05:30:15,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:30:15,057 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:30:15,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 11 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:30:15,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-11-29 05:30:15,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2023-11-29 05:30:15,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:30:15,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2023-11-29 05:30:15,063 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 5 [2023-11-29 05:30:15,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:30:15,063 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2023-11-29 05:30:15,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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) [2023-11-29 05:30:15,064 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2023-11-29 05:30:15,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 05:30:15,064 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:30:15,064 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:30:15,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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)] Ended with exit code 0 [2023-11-29 05:30:15,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 05:30:15,268 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:30:15,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:15,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1642414583, now seen corresponding path program 1 times [2023-11-29 05:30:15,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:30:15,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [345497056] [2023-11-29 05:30:15,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:15,271 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 [2023-11-29 05:30:15,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:30:15,272 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 05:30:15,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 05:30:15,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:30:15,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:30:15,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:30:15,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:30:15,361 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:30:15,361 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:30:15,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [345497056] [2023-11-29 05:30:15,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [345497056] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:30:15,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:30:15,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:30:15,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078667070] [2023-11-29 05:30:15,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:30:15,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:30:15,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:30:15,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:30:15,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:30:15,364 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-29 05:30:15,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:30:15,403 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2023-11-29 05:30:15,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:30:15,404 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 [2023-11-29 05:30:15,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:30:15,404 INFO L225 Difference]: With dead ends: 18 [2023-11-29 05:30:15,404 INFO L226 Difference]: Without dead ends: 11 [2023-11-29 05:30:15,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:30:15,406 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:30:15,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 13 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:30:15,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-11-29 05:30:15,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2023-11-29 05:30:15,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:30:15,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2023-11-29 05:30:15,411 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 8 [2023-11-29 05:30:15,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:30:15,412 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2023-11-29 05:30:15,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-29 05:30:15,412 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2023-11-29 05:30:15,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 05:30:15,412 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:30:15,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:30:15,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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)] Ended with exit code 0 [2023-11-29 05:30:15,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 05:30:15,613 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:30:15,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:15,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1585156281, now seen corresponding path program 1 times [2023-11-29 05:30:15,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:30:15,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [595430282] [2023-11-29 05:30:15,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:15,615 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 [2023-11-29 05:30:15,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:30:15,616 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 05:30:15,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 05:30:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:30:15,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:30:15,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:30:15,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:30:15,663 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:30:15,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:30:15,692 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:30:15,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [595430282] [2023-11-29 05:30:15,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [595430282] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:30:15,693 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:30:15,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 05:30:15,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480375422] [2023-11-29 05:30:15,694 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:30:15,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:30:15,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:30:15,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:30:15,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:30:15,695 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 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) [2023-11-29 05:30:15,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:30:15,737 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2023-11-29 05:30:15,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:30:15,738 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 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) Word has length 8 [2023-11-29 05:30:15,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:30:15,739 INFO L225 Difference]: With dead ends: 22 [2023-11-29 05:30:15,739 INFO L226 Difference]: Without dead ends: 18 [2023-11-29 05:30:15,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:30:15,741 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 10 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:30:15,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 25 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:30:15,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-11-29 05:30:15,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-11-29 05:30:15,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 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) [2023-11-29 05:30:15,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2023-11-29 05:30:15,747 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 8 [2023-11-29 05:30:15,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:30:15,747 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2023-11-29 05:30:15,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 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) [2023-11-29 05:30:15,748 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-11-29 05:30:15,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 05:30:15,749 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:30:15,749 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1] [2023-11-29 05:30:15,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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)] Ended with exit code 0 [2023-11-29 05:30:15,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 05:30:15,950 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:30:15,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:15,950 INFO L85 PathProgramCache]: Analyzing trace with hash -521295726, now seen corresponding path program 1 times [2023-11-29 05:30:15,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:30:15,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [463035129] [2023-11-29 05:30:15,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:15,951 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 [2023-11-29 05:30:15,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:30:15,952 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 05:30:15,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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 (6)] Waiting until timeout for monitored process [2023-11-29 05:30:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:30:15,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:30:15,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:30:16,077 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 05:30:16,077 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:30:16,176 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 05:30:16,176 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:30:16,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [463035129] [2023-11-29 05:30:16,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [463035129] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:30:16,177 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:30:16,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 05:30:16,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171597376] [2023-11-29 05:30:16,177 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:30:16,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:30:16,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:30:16,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:30:16,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:30:16,179 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:30:16,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:30:16,392 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2023-11-29 05:30:16,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 05:30:16,393 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-29 05:30:16,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:30:16,394 INFO L225 Difference]: With dead ends: 43 [2023-11-29 05:30:16,394 INFO L226 Difference]: Without dead ends: 34 [2023-11-29 05:30:16,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:30:16,396 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 15 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:30:16,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 30 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:30:16,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-29 05:30:16,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 25. [2023-11-29 05:30:16,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 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) [2023-11-29 05:30:16,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2023-11-29 05:30:16,405 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 17 [2023-11-29 05:30:16,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:30:16,405 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2023-11-29 05:30:16,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:30:16,406 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2023-11-29 05:30:16,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 05:30:16,406 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:30:16,406 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1] [2023-11-29 05:30:16,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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 (6)] Ended with exit code 0 [2023-11-29 05:30:16,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 05:30:16,609 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:30:16,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:16,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1201354096, now seen corresponding path program 2 times [2023-11-29 05:30:16,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:30:16,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1690132435] [2023-11-29 05:30:16,610 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:30:16,610 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 [2023-11-29 05:30:16,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:30:16,611 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 05:30:16,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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 (7)] Waiting until timeout for monitored process [2023-11-29 05:30:16,643 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:30:16,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:30:16,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:30:16,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:30:16,700 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:30:16,700 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:30:16,804 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:30:16,804 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:30:16,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1690132435] [2023-11-29 05:30:16,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1690132435] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:30:16,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:30:16,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 05:30:16,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797154369] [2023-11-29 05:30:16,805 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:30:16,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 05:30:16,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:30:16,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 05:30:16,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:30:16,807 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:30:16,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:30:16,918 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2023-11-29 05:30:16,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 05:30:16,919 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-29 05:30:16,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:30:16,919 INFO L225 Difference]: With dead ends: 34 [2023-11-29 05:30:16,920 INFO L226 Difference]: Without dead ends: 30 [2023-11-29 05:30:16,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:30:16,921 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 18 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:30:16,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 71 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:30:16,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-29 05:30:16,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-11-29 05:30:16,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:30:16,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2023-11-29 05:30:16,929 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 17 [2023-11-29 05:30:16,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:30:16,929 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2023-11-29 05:30:16,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:30:16,930 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2023-11-29 05:30:16,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 05:30:16,931 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:30:16,931 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 5, 3, 1, 1, 1, 1, 1] [2023-11-29 05:30:16,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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 (7)] Ended with exit code 0 [2023-11-29 05:30:17,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 05:30:17,132 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:30:17,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:17,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1187282926, now seen corresponding path program 3 times [2023-11-29 05:30:17,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:30:17,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284724007] [2023-11-29 05:30:17,133 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:30:17,133 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 [2023-11-29 05:30:17,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:30:17,134 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 05:30:17,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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 (8)] Waiting until timeout for monitored process [2023-11-29 05:30:17,170 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2023-11-29 05:30:17,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:30:17,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 05:30:17,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:30:17,967 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 2 proven. 83 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-29 05:30:17,968 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:30:19,930 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-29 05:30:19,930 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:30:19,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284724007] [2023-11-29 05:30:19,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284724007] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:30:19,931 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:30:19,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2023-11-29 05:30:19,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843248235] [2023-11-29 05:30:19,931 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:30:19,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-29 05:30:19,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:30:19,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-29 05:30:19,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=868, Unknown=0, NotChecked=0, Total=992 [2023-11-29 05:30:19,934 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 32 states, 32 states have (on average 1.53125) internal successors, (49), 31 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:30:21,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:30:21,823 INFO L93 Difference]: Finished difference Result 74 states and 85 transitions. [2023-11-29 05:30:21,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-29 05:30:21,824 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 1.53125) internal successors, (49), 31 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2023-11-29 05:30:21,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:30:21,825 INFO L225 Difference]: With dead ends: 74 [2023-11-29 05:30:21,825 INFO L226 Difference]: Without dead ends: 70 [2023-11-29 05:30:21,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=379, Invalid=2171, Unknown=0, NotChecked=0, Total=2550 [2023-11-29 05:30:21,828 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 30 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:30:21,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 133 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 05:30:21,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-11-29 05:30:21,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 48. [2023-11-29 05:30:21,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.2127659574468086) internal successors, (57), 47 states have internal predecessors, (57), 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) [2023-11-29 05:30:21,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2023-11-29 05:30:21,839 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 29 [2023-11-29 05:30:21,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:30:21,840 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2023-11-29 05:30:21,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 1.53125) internal successors, (49), 31 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:30:21,840 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2023-11-29 05:30:21,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 05:30:21,841 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:30:21,841 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 4, 4, 1, 1, 1, 1, 1] [2023-11-29 05:30:21,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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 (8)] Ended with exit code 0 [2023-11-29 05:30:22,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 05:30:22,042 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:30:22,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:22,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1244541228, now seen corresponding path program 4 times [2023-11-29 05:30:22,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:30:22,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1416064296] [2023-11-29 05:30:22,043 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 05:30:22,043 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 [2023-11-29 05:30:22,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:30:22,044 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 05:30:22,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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 (9)] Waiting until timeout for monitored process [2023-11-29 05:30:22,070 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 05:30:22,070 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:30:22,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 05:30:22,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:30:22,220 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 15 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:30:22,220 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:30:22,549 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 15 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:30:22,549 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:30:22,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1416064296] [2023-11-29 05:30:22,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1416064296] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:30:22,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:30:22,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2023-11-29 05:30:22,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758740031] [2023-11-29 05:30:22,550 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:30:22,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 05:30:22,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:30:22,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 05:30:22,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2023-11-29 05:30:22,552 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand has 19 states, 19 states have (on average 2.736842105263158) internal successors, (52), 18 states have internal predecessors, (52), 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) [2023-11-29 05:30:23,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:30:23,905 INFO L93 Difference]: Finished difference Result 105 states and 124 transitions. [2023-11-29 05:30:23,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 05:30:23,906 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.736842105263158) internal successors, (52), 18 states have internal predecessors, (52), 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 29 [2023-11-29 05:30:23,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:30:23,906 INFO L225 Difference]: With dead ends: 105 [2023-11-29 05:30:23,907 INFO L226 Difference]: Without dead ends: 81 [2023-11-29 05:30:23,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=381, Invalid=1101, Unknown=0, NotChecked=0, Total=1482 [2023-11-29 05:30:23,909 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 156 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:30:23,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 53 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:30:23,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-11-29 05:30:23,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 55. [2023-11-29 05:30:23,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.1666666666666667) internal successors, (63), 54 states have internal predecessors, (63), 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) [2023-11-29 05:30:23,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 63 transitions. [2023-11-29 05:30:23,923 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 63 transitions. Word has length 29 [2023-11-29 05:30:23,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:30:23,923 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 63 transitions. [2023-11-29 05:30:23,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.736842105263158) internal successors, (52), 18 states have internal predecessors, (52), 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) [2023-11-29 05:30:23,923 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 63 transitions. [2023-11-29 05:30:23,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 05:30:23,924 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:30:23,925 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 6, 3, 1, 1, 1, 1, 1] [2023-11-29 05:30:23,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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 (9)] Forceful destruction successful, exit code 0 [2023-11-29 05:30:24,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 05:30:24,125 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:30:24,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:24,126 INFO L85 PathProgramCache]: Analyzing trace with hash 306287609, now seen corresponding path program 5 times [2023-11-29 05:30:24,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:30:24,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1585399999] [2023-11-29 05:30:24,126 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 05:30:24,126 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 [2023-11-29 05:30:24,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:30:24,127 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 05:30:24,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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 (10)] Waiting until timeout for monitored process [2023-11-29 05:30:24,153 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2023-11-29 05:30:24,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:30:24,154 WARN L260 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 05:30:24,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:30:25,846 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 58 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:30:25,846 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:30:27,588 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 67 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:30:27,589 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:30:27,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1585399999] [2023-11-29 05:30:27,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1585399999] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:30:27,589 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:30:27,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 42 [2023-11-29 05:30:27,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054979709] [2023-11-29 05:30:27,589 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:30:27,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-11-29 05:30:27,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:30:27,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-11-29 05:30:27,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=1316, Unknown=0, NotChecked=0, Total=1722 [2023-11-29 05:30:27,592 INFO L87 Difference]: Start difference. First operand 55 states and 63 transitions. Second operand has 42 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 42 states have internal predecessors, (57), 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) [2023-11-29 05:30:31,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:30:31,415 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2023-11-29 05:30:31,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 05:30:31,415 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 42 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2023-11-29 05:30:31,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:30:31,415 INFO L225 Difference]: With dead ends: 55 [2023-11-29 05:30:31,415 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 05:30:31,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1058 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=1002, Invalid=3288, Unknown=0, NotChecked=0, Total=4290 [2023-11-29 05:30:31,417 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 26 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:30:31,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 0 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 05:30:31,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 05:30:31,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 05:30:31,418 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) [2023-11-29 05:30:31,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 05:30:31,419 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2023-11-29 05:30:31,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:30:31,419 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 05:30:31,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 42 states have internal predecessors, (57), 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) [2023-11-29 05:30:31,419 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 05:30:31,419 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 05:30:31,421 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 05:30:31,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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 (10)] Ended with exit code 0 [2023-11-29 05:30:31,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 05:30:31,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 05:30:32,089 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 05:30:32,090 INFO L895 garLoopResultBuilder]: At program point L31-2(lines 31 38) the Hoare annotation is: (let ((.cse1 (= (_ bv1 8) |ULTIMATE.start_main_~y~0#1|)) (.cse2 (= |ULTIMATE.start_main_~y~0#1| (_ bv5 8))) (.cse0 (= |ULTIMATE.start_main_~x~0#1| (_ bv37 8)))) (or (and (= |ULTIMATE.start_main_~c~0#1| (_ bv2 8)) .cse0 .cse1) (and .cse2 (= |ULTIMATE.start_main_~c~0#1| (_ bv4 8)) .cse0) (and (= (_ bv1 8) |ULTIMATE.start_main_~c~0#1|) .cse0 .cse1) (and (= (_ bv6 8) |ULTIMATE.start_main_~c~0#1|) .cse0 (exists ((|v_ULTIMATE.start_main_~c~0#1_33| (_ BitVec 8))) (let ((.cse3 ((_ zero_extend 24) |v_ULTIMATE.start_main_~c~0#1_33|))) (and (= |ULTIMATE.start_main_~y~0#1| ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvshl (_ bv1 32) .cse3))) (_ bv5 32)))) (= (_ bv6 8) ((_ extract 7 0) (bvadd .cse3 (_ bv1 32)))))))) (and (= |ULTIMATE.start_main_~c~0#1| (_ bv3 8)) .cse2 .cse0) (and (= |ULTIMATE.start_main_~c~0#1| (_ bv7 8)) (exists ((|v_ULTIMATE.start_main_~c~0#1_33| (_ BitVec 8))) (let ((.cse4 ((_ zero_extend 24) |v_ULTIMATE.start_main_~c~0#1_33|))) (and (= |ULTIMATE.start_main_~y~0#1| ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvshl (_ bv1 32) .cse4))) (_ bv5 32)))) (= (_ bv7 8) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse4 (_ bv1 32)))) (_ bv1 32))))))) .cse0) (and (= |ULTIMATE.start_main_~y~0#1| (_ bv0 8)) (= |ULTIMATE.start_main_~c~0#1| (_ bv0 8)) .cse0) (and (exists ((|v_ULTIMATE.start_main_~c~0#1_33| (_ BitVec 8))) (let ((.cse6 ((_ zero_extend 24) |v_ULTIMATE.start_main_~c~0#1_33|))) (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse6 (_ bv1 32)))) (_ bv1 32)))))) (and (bvslt .cse5 (_ bv8 32)) (= |ULTIMATE.start_main_~y~0#1| ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvshl (_ bv1 32) .cse6))) (_ bv5 32)))) (= |ULTIMATE.start_main_~c~0#1| ((_ extract 7 0) (bvadd .cse5 (_ bv1 32)))))))) (exists ((v_subst_8 (_ BitVec 8)) (|v_ULTIMATE.start_main_~c~0#1_60| (_ BitVec 8))) (let ((.cse10 ((_ zero_extend 24) |v_ULTIMATE.start_main_~c~0#1_60|))) (let ((.cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvadd (_ bv1 32) .cse10))))) (let ((.cse9 ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse11 (_ bv1 32)))))) (let ((.cse12 ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse9 (_ bv1 32)))) (_ bv1 32)))) (_ bv1 32)))))) (let ((.cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse12 (_ bv1 32))))) (.cse7 ((_ zero_extend 24) v_subst_8))) (and (= (_ bv0 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) (bvshl (_ bv1 32) .cse8))))))) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvshl (_ bv1 32) .cse9))) .cse7))) (_ bv0 32))) (bvslt .cse10 (_ bv8 32)) (= ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse8 (_ bv1 32)))) (_ bv1 32))) |ULTIMATE.start_main_~c~0#1|) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) (bvshl (_ bv1 32) .cse11)))))) (_ bv0 32)) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvshl (_ bv1 32) .cse12))) .cse7))) (_ bv0 32)))))))))) .cse0) (and .cse2 (= |ULTIMATE.start_main_~c~0#1| (_ bv5 8)) .cse0))) [2023-11-29 05:30:32,090 INFO L899 garLoopResultBuilder]: For program point L31-3(lines 31 38) no Hoare annotation was computed. [2023-11-29 05:30:32,090 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2023-11-29 05:30:32,090 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 19) no Hoare annotation was computed. [2023-11-29 05:30:32,090 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 05:30:32,090 INFO L899 garLoopResultBuilder]: For program point L34(lines 34 36) no Hoare annotation was computed. [2023-11-29 05:30:32,090 INFO L899 garLoopResultBuilder]: For program point L34-2(lines 34 36) no Hoare annotation was computed. [2023-11-29 05:30:32,090 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2023-11-29 05:30:32,091 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2023-11-29 05:30:32,094 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1] [2023-11-29 05:30:32,096 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 05:30:32,110 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~c~0#1_33 : bv8 :: ~y~0 == ~bvadd~32(~zero_extend~32~8(~bvshl~32(1bv32, ~zero_extend~32~8(v_ULTIMATE.start_main_~c~0#1_33))[7:0]), 5bv32)[7:0] && 6bv8 == ~bvadd~32(~zero_extend~32~8(v_ULTIMATE.start_main_~c~0#1_33), 1bv32)[7:0]) could not be translated [2023-11-29 05:30:32,111 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~c~0#1_33 : bv8 :: ~y~0 == ~bvadd~32(~zero_extend~32~8(~bvshl~32(1bv32, ~zero_extend~32~8(v_ULTIMATE.start_main_~c~0#1_33))[7:0]), 5bv32)[7:0] && 7bv8 == ~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(v_ULTIMATE.start_main_~c~0#1_33), 1bv32)[7:0]), 1bv32)[7:0]) could not be translated [2023-11-29 05:30:32,112 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~c~0#1_33 : bv8 :: (~bvslt~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(v_ULTIMATE.start_main_~c~0#1_33), 1bv32)[7:0]), 1bv32)[7:0]), 8bv32) && ~y~0 == ~bvadd~32(~zero_extend~32~8(~bvshl~32(1bv32, ~zero_extend~32~8(v_ULTIMATE.start_main_~c~0#1_33))[7:0]), 5bv32)[7:0]) && ~c~0 == ~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(v_ULTIMATE.start_main_~c~0#1_33), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]) could not be translated [2023-11-29 05:30:32,112 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_subst_8 : bv8, v_ULTIMATE.start_main_~c~0#1_60 : bv8 :: ((((0bv32 == ~zero_extend~32~8(~bvand~32(~zero_extend~32~8(v_subst_8), ~zero_extend~32~8(~bvshl~32(1bv32, ~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(1bv32, ~zero_extend~32~8(v_ULTIMATE.start_main_~c~0#1_60))[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]))[7:0]))[7:0]) && !(~zero_extend~32~8(~bvand~32(~zero_extend~32~8(~bvshl~32(1bv32, ~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(1bv32, ~zero_extend~32~8(v_ULTIMATE.start_main_~c~0#1_60))[7:0]), 1bv32)[7:0]))[7:0]), ~zero_extend~32~8(v_subst_8))[7:0]) == 0bv32)) && ~bvslt~32(~zero_extend~32~8(v_ULTIMATE.start_main_~c~0#1_60), 8bv32)) && ~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(1bv32, ~zero_extend~32~8(v_ULTIMATE.start_main_~c~0#1_60))[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0] == ~c~0) && ~zero_extend~32~8(~bvand~32(~zero_extend~32~8(v_subst_8), ~zero_extend~32~8(~bvshl~32(1bv32, ~zero_extend~32~8(~bvadd~32(1bv32, ~zero_extend~32~8(v_ULTIMATE.start_main_~c~0#1_60))[7:0]))[7:0]))[7:0]) == 0bv32) && !(~zero_extend~32~8(~bvand~32(~zero_extend~32~8(~bvshl~32(1bv32, ~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(1bv32, ~zero_extend~32~8(v_ULTIMATE.start_main_~c~0#1_60))[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]))[7:0]), ~zero_extend~32~8(v_subst_8))[7:0]) == 0bv32)) could not be translated [2023-11-29 05:30:32,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 05:30:32 BoogieIcfgContainer [2023-11-29 05:30:32,113 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 05:30:32,113 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:30:32,113 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:30:32,114 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:30:32,114 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:30:14" (3/4) ... [2023-11-29 05:30:32,116 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 05:30:32,121 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-29 05:30:32,121 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 05:30:32,121 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 05:30:32,121 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 05:30:32,230 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 05:30:32,231 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 05:30:32,231 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:30:32,231 INFO L158 Benchmark]: Toolchain (without parser) took 18318.59ms. Allocated memory was 71.3MB in the beginning and 132.1MB in the end (delta: 60.8MB). Free memory was 44.5MB in the beginning and 106.7MB in the end (delta: -62.3MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2023-11-29 05:30:32,232 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 71.3MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:30:32,232 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.12ms. Allocated memory is still 71.3MB. Free memory was 44.5MB in the beginning and 33.8MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 05:30:32,232 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.40ms. Allocated memory is still 71.3MB. Free memory was 33.8MB in the beginning and 32.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:30:32,233 INFO L158 Benchmark]: Boogie Preprocessor took 32.67ms. Allocated memory is still 71.3MB. Free memory was 32.1MB in the beginning and 30.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:30:32,233 INFO L158 Benchmark]: RCFGBuilder took 286.94ms. Allocated memory was 71.3MB in the beginning and 109.1MB in the end (delta: 37.7MB). Free memory was 30.4MB in the beginning and 80.6MB in the end (delta: -50.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 05:30:32,233 INFO L158 Benchmark]: TraceAbstraction took 17633.09ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 79.8MB in the beginning and 68.4MB in the end (delta: 11.3MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. [2023-11-29 05:30:32,234 INFO L158 Benchmark]: Witness Printer took 117.35ms. Allocated memory is still 132.1MB. Free memory was 68.4MB in the beginning and 106.7MB in the end (delta: -38.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 05:30:32,236 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 71.3MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.12ms. Allocated memory is still 71.3MB. Free memory was 44.5MB in the beginning and 33.8MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.40ms. Allocated memory is still 71.3MB. Free memory was 33.8MB in the beginning and 32.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.67ms. Allocated memory is still 71.3MB. Free memory was 32.1MB in the beginning and 30.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 286.94ms. Allocated memory was 71.3MB in the beginning and 109.1MB in the end (delta: 37.7MB). Free memory was 30.4MB in the beginning and 80.6MB in the end (delta: -50.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 17633.09ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 79.8MB in the beginning and 68.4MB in the end (delta: 11.3MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. * Witness Printer took 117.35ms. Allocated memory is still 132.1MB. Free memory was 68.4MB in the beginning and 106.7MB in the end (delta: -38.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~c~0#1_33 : bv8 :: ~y~0 == ~bvadd~32(~zero_extend~32~8(~bvshl~32(1bv32, ~zero_extend~32~8(v_ULTIMATE.start_main_~c~0#1_33))[7:0]), 5bv32)[7:0] && 6bv8 == ~bvadd~32(~zero_extend~32~8(v_ULTIMATE.start_main_~c~0#1_33), 1bv32)[7:0]) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~c~0#1_33 : bv8 :: ~y~0 == ~bvadd~32(~zero_extend~32~8(~bvshl~32(1bv32, ~zero_extend~32~8(v_ULTIMATE.start_main_~c~0#1_33))[7:0]), 5bv32)[7:0] && 7bv8 == ~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(v_ULTIMATE.start_main_~c~0#1_33), 1bv32)[7:0]), 1bv32)[7:0]) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~c~0#1_33 : bv8 :: (~bvslt~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(v_ULTIMATE.start_main_~c~0#1_33), 1bv32)[7:0]), 1bv32)[7:0]), 8bv32) && ~y~0 == ~bvadd~32(~zero_extend~32~8(~bvshl~32(1bv32, ~zero_extend~32~8(v_ULTIMATE.start_main_~c~0#1_33))[7:0]), 5bv32)[7:0]) && ~c~0 == ~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(v_ULTIMATE.start_main_~c~0#1_33), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_subst_8 : bv8, v_ULTIMATE.start_main_~c~0#1_60 : bv8 :: ((((0bv32 == ~zero_extend~32~8(~bvand~32(~zero_extend~32~8(v_subst_8), ~zero_extend~32~8(~bvshl~32(1bv32, ~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(1bv32, ~zero_extend~32~8(v_ULTIMATE.start_main_~c~0#1_60))[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]))[7:0]))[7:0]) && !(~zero_extend~32~8(~bvand~32(~zero_extend~32~8(~bvshl~32(1bv32, ~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(1bv32, ~zero_extend~32~8(v_ULTIMATE.start_main_~c~0#1_60))[7:0]), 1bv32)[7:0]))[7:0]), ~zero_extend~32~8(v_subst_8))[7:0]) == 0bv32)) && ~bvslt~32(~zero_extend~32~8(v_ULTIMATE.start_main_~c~0#1_60), 8bv32)) && ~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(1bv32, ~zero_extend~32~8(v_ULTIMATE.start_main_~c~0#1_60))[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0] == ~c~0) && ~zero_extend~32~8(~bvand~32(~zero_extend~32~8(v_subst_8), ~zero_extend~32~8(~bvshl~32(1bv32, ~zero_extend~32~8(~bvadd~32(1bv32, ~zero_extend~32~8(v_ULTIMATE.start_main_~c~0#1_60))[7:0]))[7:0]))[7:0]) == 0bv32) && !(~zero_extend~32~8(~bvand~32(~zero_extend~32~8(~bvshl~32(1bv32, ~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(~zero_extend~32~8(~bvadd~32(1bv32, ~zero_extend~32~8(v_ULTIMATE.start_main_~c~0#1_60))[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]))[7:0]), ~zero_extend~32~8(v_subst_8))[7:0]) == 0bv32)) 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: 16]: 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, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.6s, OverallIterations: 9, TraceHistogramMax: 9, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 261 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 261 mSDsluCounter, 345 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 289 mSDsCounter, 65 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1073 IncrementalHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 65 mSolverCounterUnsat, 56 mSDtfsCounter, 1073 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 340 GetRequests, 154 SyntacticMatches, 1 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1709 ImplicationChecksByTransitivity, 11.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=8, InterpolantAutomatonStates: 128, 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, 9 MinimizatonAttempts, 60 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 10 NumberOfFragments, 314 HoareAnnotationTreeSize, 1 FomulaSimplifications, 780 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 996 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 150 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 267 ConstructedInterpolants, 49 QuantifiedInterpolants, 6340 SizeOfPredicates, 30 NumberOfNonLiveVariables, 351 ConjunctsInSsa, 84 ConjunctsInUnsatCore, 15 InterpolantComputations, 3 PerfectInterpolantSequences, 202/693 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: 31]: Loop Invariant Derived loop invariant: (((((((((((c == 2) && (x == 37)) && (1 == y)) || (((y == 5) && (c == 4)) && (x == 37))) || (((1 == c) && (x == 37)) && (1 == y))) || ((6 == c) && (x == 37))) || (((c == 3) && (y == 5)) && (x == 37))) || ((c == 7) && (x == 37))) || (((y == 0) && (c == 0)) && (x == 37))) || (x == 37)) || (((y == 5) && (c == 5)) && (x == 37))) RESULT: Ultimate proved your program to be correct! [2023-11-29 05:30:32,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529c629-2930-4bd2-bf49-3910d56e18bd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE