./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-42.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-42.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 19a60273c9036fd322b397de31454eb141b9f154ab77bf61e90ba0f48087b2d9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:54:32,604 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:54:32,678 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:54:32,686 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:54:32,687 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:54:32,715 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:54:32,715 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:54:32,716 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:54:32,717 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:54:32,717 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:54:32,718 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:54:32,719 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:54:32,720 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:54:32,720 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:54:32,721 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:54:32,721 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:54:32,722 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:54:32,722 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:54:32,723 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:54:32,723 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:54:32,724 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:54:32,724 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:54:32,725 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:54:32,725 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:54:32,726 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:54:32,726 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:54:32,727 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:54:32,727 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:54:32,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:54:32,728 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:54:32,729 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:54:32,729 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:54:32,730 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:54:32,730 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:54:32,731 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:54:32,731 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:54:32,731 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:54:32,732 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:54:32,732 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:54:32,732 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_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19a60273c9036fd322b397de31454eb141b9f154ab77bf61e90ba0f48087b2d9 [2023-11-06 22:54:33,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:54:33,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:54:33,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:54:33,065 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:54:33,066 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:54:33,068 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-42.i [2023-11-06 22:54:36,202 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:54:36,482 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:54:36,484 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-42.i [2023-11-06 22:54:36,496 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/data/ee70fcc9a/cc974757d06b42d1b546c710a4ce61a1/FLAG84fdc8baf [2023-11-06 22:54:36,511 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/data/ee70fcc9a/cc974757d06b42d1b546c710a4ce61a1 [2023-11-06 22:54:36,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:54:36,522 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:54:36,526 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:54:36,526 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:54:36,532 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:54:36,535 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:54:36" (1/1) ... [2023-11-06 22:54:36,536 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30b44305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:36, skipping insertion in model container [2023-11-06 22:54:36,537 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:54:36" (1/1) ... [2023-11-06 22:54:36,587 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:54:36,772 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_60aec0df-d56c-4954-9ede-8d944a3da2d5/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-42.i[919,932] [2023-11-06 22:54:36,868 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:54:36,889 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:54:36,907 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_60aec0df-d56c-4954-9ede-8d944a3da2d5/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-42.i[919,932] [2023-11-06 22:54:36,965 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:54:36,986 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:54:36,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:36 WrapperNode [2023-11-06 22:54:36,987 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:54:36,988 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:54:36,988 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:54:36,988 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:54:36,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:36" (1/1) ... [2023-11-06 22:54:37,028 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:36" (1/1) ... [2023-11-06 22:54:37,081 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 171 [2023-11-06 22:54:37,081 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:54:37,082 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:54:37,082 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:54:37,082 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:54:37,092 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:36" (1/1) ... [2023-11-06 22:54:37,092 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:36" (1/1) ... [2023-11-06 22:54:37,096 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:36" (1/1) ... [2023-11-06 22:54:37,096 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:36" (1/1) ... [2023-11-06 22:54:37,112 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:36" (1/1) ... [2023-11-06 22:54:37,116 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:36" (1/1) ... [2023-11-06 22:54:37,119 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:36" (1/1) ... [2023-11-06 22:54:37,122 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:36" (1/1) ... [2023-11-06 22:54:37,128 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:54:37,129 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:54:37,129 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:54:37,129 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:54:37,130 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:36" (1/1) ... [2023-11-06 22:54:37,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:54:37,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:37,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:54:37,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:54:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:54:37,221 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:54:37,221 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:54:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:54:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:54:37,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:54:37,347 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:54:37,351 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:54:37,896 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:54:37,911 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:54:37,911 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:54:37,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:54:37 BoogieIcfgContainer [2023-11-06 22:54:37,914 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:54:37,916 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:54:37,916 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:54:37,920 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:54:37,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:54:36" (1/3) ... [2023-11-06 22:54:37,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f65ac76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:54:37, skipping insertion in model container [2023-11-06 22:54:37,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:36" (2/3) ... [2023-11-06 22:54:37,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f65ac76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:54:37, skipping insertion in model container [2023-11-06 22:54:37,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:54:37" (3/3) ... [2023-11-06 22:54:37,923 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-42.i [2023-11-06 22:54:37,944 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:54:37,944 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:54:38,013 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:54:38,021 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4f36c10c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:54:38,021 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:54:38,026 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 51 states have (on average 1.5098039215686274) internal successors, (77), 52 states have internal predecessors, (77), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 22:54:38,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-06 22:54:38,045 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:38,046 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:38,047 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:54:38,051 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:38,052 INFO L85 PathProgramCache]: Analyzing trace with hash 293078757, now seen corresponding path program 1 times [2023-11-06 22:54:38,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:38,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301433846] [2023-11-06 22:54:38,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:38,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:38,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:38,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:38,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301433846] [2023-11-06 22:54:38,311 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-06 22:54:38,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929075965] [2023-11-06 22:54:38,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:38,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:38,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:38,317 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:38,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:54:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:38,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:54:38,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:38,590 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2023-11-06 22:54:38,590 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:54:38,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929075965] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:38,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:38,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:54:38,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117187022] [2023-11-06 22:54:38,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:38,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:54:38,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:38,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:54:38,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:54:38,637 INFO L87 Difference]: Start difference. First operand has 72 states, 51 states have (on average 1.5098039215686274) internal successors, (77), 52 states have internal predecessors, (77), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-06 22:54:38,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:38,671 INFO L93 Difference]: Finished difference Result 136 states and 236 transitions. [2023-11-06 22:54:38,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:54:38,674 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 129 [2023-11-06 22:54:38,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:38,683 INFO L225 Difference]: With dead ends: 136 [2023-11-06 22:54:38,683 INFO L226 Difference]: Without dead ends: 67 [2023-11-06 22:54:38,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:54:38,691 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:38,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:54:38,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-06 22:54:38,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2023-11-06 22:54:38,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 47 states have (on average 1.425531914893617) internal successors, (67), 47 states have internal predecessors, (67), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 22:54:38,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 103 transitions. [2023-11-06 22:54:38,749 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 103 transitions. Word has length 129 [2023-11-06 22:54:38,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:38,749 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 103 transitions. [2023-11-06 22:54:38,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-06 22:54:38,750 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 103 transitions. [2023-11-06 22:54:38,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-06 22:54:38,754 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:38,755 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:38,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:38,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-06 22:54:38,962 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:54:38,963 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:38,963 INFO L85 PathProgramCache]: Analyzing trace with hash 2013606881, now seen corresponding path program 1 times [2023-11-06 22:54:38,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:38,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813872170] [2023-11-06 22:54:38,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:38,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:39,039 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:54:39,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1236930420] [2023-11-06 22:54:39,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:39,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:39,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:39,041 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:39,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:54:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:39,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:54:39,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:39,420 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-06 22:54:39,420 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:54:39,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:39,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813872170] [2023-11-06 22:54:39,421 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:54:39,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236930420] [2023-11-06 22:54:39,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236930420] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:39,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:39,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:54:39,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323887566] [2023-11-06 22:54:39,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:39,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:54:39,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:39,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:54:39,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:54:39,426 INFO L87 Difference]: Start difference. First operand 67 states and 103 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:54:39,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:39,581 INFO L93 Difference]: Finished difference Result 131 states and 203 transitions. [2023-11-06 22:54:39,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:54:39,582 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 129 [2023-11-06 22:54:39,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:39,585 INFO L225 Difference]: With dead ends: 131 [2023-11-06 22:54:39,585 INFO L226 Difference]: Without dead ends: 67 [2023-11-06 22:54:39,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:54:39,588 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 125 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:39,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 115 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:54:39,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-06 22:54:39,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2023-11-06 22:54:39,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 47 states have (on average 1.4042553191489362) internal successors, (66), 47 states have internal predecessors, (66), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 22:54:39,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 102 transitions. [2023-11-06 22:54:39,613 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 102 transitions. Word has length 129 [2023-11-06 22:54:39,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:39,615 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 102 transitions. [2023-11-06 22:54:39,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:54:39,616 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 102 transitions. [2023-11-06 22:54:39,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-06 22:54:39,629 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:39,629 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:39,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:39,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:39,837 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:54:39,838 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:39,838 INFO L85 PathProgramCache]: Analyzing trace with hash 19462175, now seen corresponding path program 1 times [2023-11-06 22:54:39,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:39,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042361642] [2023-11-06 22:54:39,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:39,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:39,940 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:54:39,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [202059590] [2023-11-06 22:54:39,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:39,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:39,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:39,956 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:39,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:54:40,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:40,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:54:40,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:40,230 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-06 22:54:40,238 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:54:40,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:40,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042361642] [2023-11-06 22:54:40,239 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:54:40,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202059590] [2023-11-06 22:54:40,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202059590] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:40,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:40,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:54:40,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022831265] [2023-11-06 22:54:40,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:40,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:54:40,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:40,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:54:40,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:40,244 INFO L87 Difference]: Start difference. First operand 67 states and 102 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:54:40,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:40,409 INFO L93 Difference]: Finished difference Result 195 states and 300 transitions. [2023-11-06 22:54:40,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:54:40,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 129 [2023-11-06 22:54:40,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:40,420 INFO L225 Difference]: With dead ends: 195 [2023-11-06 22:54:40,420 INFO L226 Difference]: Without dead ends: 131 [2023-11-06 22:54:40,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:40,428 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 84 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:40,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 233 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:54:40,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-11-06 22:54:40,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 80. [2023-11-06 22:54:40,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 60 states have (on average 1.45) internal successors, (87), 60 states have internal predecessors, (87), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 22:54:40,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 123 transitions. [2023-11-06 22:54:40,475 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 123 transitions. Word has length 129 [2023-11-06 22:54:40,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:40,478 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 123 transitions. [2023-11-06 22:54:40,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:54:40,478 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 123 transitions. [2023-11-06 22:54:40,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-06 22:54:40,483 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:40,483 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:40,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:40,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:40,690 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:54:40,690 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:40,691 INFO L85 PathProgramCache]: Analyzing trace with hash 699520545, now seen corresponding path program 1 times [2023-11-06 22:54:40,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:40,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941101314] [2023-11-06 22:54:40,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:40,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:40,778 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:54:40,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [755948456] [2023-11-06 22:54:40,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:40,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:40,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:40,790 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:40,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:54:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:40,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:54:40,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:41,261 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 141 proven. 45 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2023-11-06 22:54:41,261 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:54:41,573 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-06 22:54:41,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:41,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941101314] [2023-11-06 22:54:41,575 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:54:41,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755948456] [2023-11-06 22:54:41,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755948456] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:54:41,576 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:54:41,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-06 22:54:41,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795250360] [2023-11-06 22:54:41,577 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:54:41,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:54:41,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:41,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:54:41,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:54:41,584 INFO L87 Difference]: Start difference. First operand 80 states and 123 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2023-11-06 22:54:41,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:41,840 INFO L93 Difference]: Finished difference Result 163 states and 248 transitions. [2023-11-06 22:54:41,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:54:41,843 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 129 [2023-11-06 22:54:41,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:41,846 INFO L225 Difference]: With dead ends: 163 [2023-11-06 22:54:41,846 INFO L226 Difference]: Without dead ends: 86 [2023-11-06 22:54:41,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:54:41,855 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 73 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:41,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 164 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:54:41,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-06 22:54:41,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2023-11-06 22:54:41,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 63 states have (on average 1.4126984126984128) internal successors, (89), 63 states have internal predecessors, (89), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 22:54:41,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 125 transitions. [2023-11-06 22:54:41,887 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 125 transitions. Word has length 129 [2023-11-06 22:54:41,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:41,888 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 125 transitions. [2023-11-06 22:54:41,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2023-11-06 22:54:41,888 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 125 transitions. [2023-11-06 22:54:41,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-06 22:54:41,898 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:41,898 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:41,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:42,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:42,110 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:54:42,111 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:42,111 INFO L85 PathProgramCache]: Analyzing trace with hash 642262243, now seen corresponding path program 1 times [2023-11-06 22:54:42,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:42,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491197085] [2023-11-06 22:54:42,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:42,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:42,165 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:54:42,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2025350798] [2023-11-06 22:54:42,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:42,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:42,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:42,168 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:42,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:54:42,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:42,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-06 22:54:42,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:43,035 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 300 proven. 48 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-06 22:54:43,036 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:54:43,585 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-06 22:54:43,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:43,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491197085] [2023-11-06 22:54:43,590 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:54:43,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025350798] [2023-11-06 22:54:43,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025350798] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-06 22:54:43,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:54:43,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 14 [2023-11-06 22:54:43,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045529995] [2023-11-06 22:54:43,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:43,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:54:43,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:43,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:54:43,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:54:43,596 INFO L87 Difference]: Start difference. First operand 84 states and 125 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:54:44,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:44,200 INFO L93 Difference]: Finished difference Result 570 states and 867 transitions. [2023-11-06 22:54:44,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-06 22:54:44,202 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 129 [2023-11-06 22:54:44,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:44,207 INFO L225 Difference]: With dead ends: 570 [2023-11-06 22:54:44,207 INFO L226 Difference]: Without dead ends: 489 [2023-11-06 22:54:44,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2023-11-06 22:54:44,210 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 368 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:44,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 1203 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:54:44,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-11-06 22:54:44,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 200. [2023-11-06 22:54:44,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 139 states have (on average 1.3453237410071943) internal successors, (187), 139 states have internal predecessors, (187), 54 states have call successors, (54), 6 states have call predecessors, (54), 6 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-06 22:54:44,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 295 transitions. [2023-11-06 22:54:44,324 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 295 transitions. Word has length 129 [2023-11-06 22:54:44,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:44,325 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 295 transitions. [2023-11-06 22:54:44,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:54:44,326 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 295 transitions. [2023-11-06 22:54:44,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-06 22:54:44,328 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:44,329 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:44,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:44,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:44,542 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:54:44,543 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:44,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1476945297, now seen corresponding path program 1 times [2023-11-06 22:54:44,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:44,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815590189] [2023-11-06 22:54:44,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:44,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:44,633 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:54:44,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1855179203] [2023-11-06 22:54:44,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:44,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:44,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:44,640 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:44,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:54:44,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:44,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-06 22:54:44,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:45,154 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 401 proven. 45 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2023-11-06 22:54:45,156 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:54:45,525 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 51 proven. 48 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2023-11-06 22:54:45,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:45,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815590189] [2023-11-06 22:54:45,526 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:54:45,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855179203] [2023-11-06 22:54:45,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855179203] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:54:45,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:54:45,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2023-11-06 22:54:45,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087474267] [2023-11-06 22:54:45,528 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:54:45,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 22:54:45,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:45,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 22:54:45,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:54:45,530 INFO L87 Difference]: Start difference. First operand 200 states and 295 transitions. Second operand has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 3 states have call successors, (28), 3 states have call predecessors, (28), 7 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-06 22:54:46,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:46,806 INFO L93 Difference]: Finished difference Result 509 states and 718 transitions. [2023-11-06 22:54:46,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-11-06 22:54:46,807 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 3 states have call successors, (28), 3 states have call predecessors, (28), 7 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 130 [2023-11-06 22:54:46,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:46,813 INFO L225 Difference]: With dead ends: 509 [2023-11-06 22:54:46,814 INFO L226 Difference]: Without dead ends: 351 [2023-11-06 22:54:46,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 248 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 586 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=578, Invalid=1584, Unknown=0, NotChecked=0, Total=2162 [2023-11-06 22:54:46,819 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 526 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:46,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 456 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 22:54:46,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-11-06 22:54:46,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 224. [2023-11-06 22:54:46,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 157 states have (on average 1.305732484076433) internal successors, (205), 157 states have internal predecessors, (205), 54 states have call successors, (54), 12 states have call predecessors, (54), 12 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-06 22:54:46,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 313 transitions. [2023-11-06 22:54:46,888 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 313 transitions. Word has length 130 [2023-11-06 22:54:46,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:46,890 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 313 transitions. [2023-11-06 22:54:46,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 3 states have call successors, (28), 3 states have call predecessors, (28), 7 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-06 22:54:46,890 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 313 transitions. [2023-11-06 22:54:46,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-06 22:54:46,892 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:46,893 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:46,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:47,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-06 22:54:47,104 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:54:47,104 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:47,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1012583665, now seen corresponding path program 1 times [2023-11-06 22:54:47,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:47,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819435549] [2023-11-06 22:54:47,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:47,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:47,140 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:54:47,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [577711082] [2023-11-06 22:54:47,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:47,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:47,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:47,142 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:47,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 22:54:47,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:47,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 22:54:47,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:47,934 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-06 22:54:47,934 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:54:47,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:47,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819435549] [2023-11-06 22:54:47,935 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:54:47,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577711082] [2023-11-06 22:54:47,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577711082] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:47,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:47,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:54:47,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222286271] [2023-11-06 22:54:47,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:47,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:54:47,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:47,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:54:47,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:54:47,939 INFO L87 Difference]: Start difference. First operand 224 states and 313 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:54:48,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:48,272 INFO L93 Difference]: Finished difference Result 577 states and 824 transitions. [2023-11-06 22:54:48,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:54:48,273 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2023-11-06 22:54:48,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:48,279 INFO L225 Difference]: With dead ends: 577 [2023-11-06 22:54:48,279 INFO L226 Difference]: Without dead ends: 403 [2023-11-06 22:54:48,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:54:48,282 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 146 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:48,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 355 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:54:48,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2023-11-06 22:54:48,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 325. [2023-11-06 22:54:48,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 236 states have (on average 1.326271186440678) internal successors, (313), 236 states have internal predecessors, (313), 72 states have call successors, (72), 16 states have call predecessors, (72), 16 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2023-11-06 22:54:48,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 457 transitions. [2023-11-06 22:54:48,386 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 457 transitions. Word has length 130 [2023-11-06 22:54:48,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:48,387 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 457 transitions. [2023-11-06 22:54:48,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:54:48,388 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 457 transitions. [2023-11-06 22:54:48,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-06 22:54:48,392 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:48,392 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:48,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:48,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:48,600 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:54:48,601 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:48,601 INFO L85 PathProgramCache]: Analyzing trace with hash 878570159, now seen corresponding path program 1 times [2023-11-06 22:54:48,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:48,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411657480] [2023-11-06 22:54:48,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:48,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:48,665 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:54:48,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [721650850] [2023-11-06 22:54:48,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:48,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:48,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:48,669 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:48,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 22:54:49,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:49,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-06 22:54:49,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:50,285 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 158 proven. 84 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-06 22:54:50,285 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:54:53,170 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-06 22:54:53,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:53,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411657480] [2023-11-06 22:54:53,170 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:54:53,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721650850] [2023-11-06 22:54:53,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721650850] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:54:53,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:54:53,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 22 [2023-11-06 22:54:53,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36160798] [2023-11-06 22:54:53,171 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:54:53,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-06 22:54:53,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:53,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-06 22:54:53,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2023-11-06 22:54:53,174 INFO L87 Difference]: Start difference. First operand 325 states and 457 transitions. Second operand has 22 states, 22 states have (on average 4.045454545454546) internal successors, (89), 21 states have internal predecessors, (89), 5 states have call successors, (36), 4 states have call predecessors, (36), 6 states have return successors, (36), 5 states have call predecessors, (36), 5 states have call successors, (36) [2023-11-06 22:55:36,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-06 22:55:39,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-06 22:55:58,872 WARN L293 SmtUtils]: Spent 7.07s on a formula simplification that was a NOOP. DAG size: 54 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-06 22:56:07,759 WARN L293 SmtUtils]: Spent 5.55s on a formula simplification that was a NOOP. DAG size: 48 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-06 22:56:17,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:17,770 INFO L93 Difference]: Finished difference Result 1656 states and 2285 transitions. [2023-11-06 22:56:17,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-11-06 22:56:17,771 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.045454545454546) internal successors, (89), 21 states have internal predecessors, (89), 5 states have call successors, (36), 4 states have call predecessors, (36), 6 states have return successors, (36), 5 states have call predecessors, (36), 5 states have call successors, (36) Word has length 130 [2023-11-06 22:56:17,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:17,781 INFO L225 Difference]: With dead ends: 1656 [2023-11-06 22:56:17,781 INFO L226 Difference]: Without dead ends: 1482 [2023-11-06 22:56:17,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1940 ImplicationChecksByTransitivity, 56.1s TimeCoverageRelationStatistics Valid=1320, Invalid=4380, Unknown=0, NotChecked=0, Total=5700 [2023-11-06 22:56:17,786 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 1436 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 1523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:17,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1436 Valid, 845 Invalid, 1523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1393 Invalid, 0 Unknown, 0 Unchecked, 29.6s Time] [2023-11-06 22:56:17,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2023-11-06 22:56:17,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 667. [2023-11-06 22:56:17,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 499 states have (on average 1.3286573146292586) internal successors, (663), 501 states have internal predecessors, (663), 130 states have call successors, (130), 37 states have call predecessors, (130), 37 states have return successors, (130), 128 states have call predecessors, (130), 130 states have call successors, (130) [2023-11-06 22:56:17,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 923 transitions. [2023-11-06 22:56:17,950 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 923 transitions. Word has length 130 [2023-11-06 22:56:17,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:17,951 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 923 transitions. [2023-11-06 22:56:17,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.045454545454546) internal successors, (89), 21 states have internal predecessors, (89), 5 states have call successors, (36), 4 states have call predecessors, (36), 6 states have return successors, (36), 5 states have call predecessors, (36), 5 states have call successors, (36) [2023-11-06 22:56:17,951 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 923 transitions. [2023-11-06 22:56:17,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-06 22:56:17,953 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:17,954 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:17,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:18,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:56:18,161 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:56:18,161 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:18,161 INFO L85 PathProgramCache]: Analyzing trace with hash 704397867, now seen corresponding path program 1 times [2023-11-06 22:56:18,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:18,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038039158] [2023-11-06 22:56:18,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:18,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:18,206 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:56:18,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [41521665] [2023-11-06 22:56:18,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:18,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:56:18,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:18,208 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:56:18,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 22:56:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:18,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:56:18,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:18,438 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-06 22:56:18,438 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:56:18,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:56:18,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038039158] [2023-11-06 22:56:18,439 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:56:18,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41521665] [2023-11-06 22:56:18,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41521665] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:18,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:18,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:56:18,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731458713] [2023-11-06 22:56:18,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:18,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:56:18,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:56:18,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:56:18,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:56:18,446 INFO L87 Difference]: Start difference. First operand 667 states and 923 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:56:18,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:18,707 INFO L93 Difference]: Finished difference Result 1173 states and 1638 transitions. [2023-11-06 22:56:18,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:56:18,708 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2023-11-06 22:56:18,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:18,715 INFO L225 Difference]: With dead ends: 1173 [2023-11-06 22:56:18,716 INFO L226 Difference]: Without dead ends: 745 [2023-11-06 22:56:18,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:56:18,720 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 58 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:18,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 265 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:56:18,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2023-11-06 22:56:18,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 690. [2023-11-06 22:56:18,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 522 states have (on average 1.3352490421455938) internal successors, (697), 524 states have internal predecessors, (697), 130 states have call successors, (130), 37 states have call predecessors, (130), 37 states have return successors, (130), 128 states have call predecessors, (130), 130 states have call successors, (130) [2023-11-06 22:56:18,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 957 transitions. [2023-11-06 22:56:18,915 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 957 transitions. Word has length 130 [2023-11-06 22:56:18,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:18,915 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 957 transitions. [2023-11-06 22:56:18,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:56:18,916 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 957 transitions. [2023-11-06 22:56:18,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-06 22:56:18,918 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:18,918 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:18,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:19,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:56:19,126 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:56:19,126 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:19,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1355590315, now seen corresponding path program 1 times [2023-11-06 22:56:19,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:19,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942770188] [2023-11-06 22:56:19,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:19,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:19,165 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:56:19,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [247381568] [2023-11-06 22:56:19,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:19,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:56:19,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:19,167 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:56:19,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-06 22:56:19,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:19,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-06 22:56:19,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:20,834 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 141 proven. 45 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2023-11-06 22:56:20,835 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:56:22,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:56:22,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942770188] [2023-11-06 22:56:22,328 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:56:22,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247381568] [2023-11-06 22:56:22,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247381568] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:56:22,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:56:22,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-06 22:56:22,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976718998] [2023-11-06 22:56:22,329 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-06 22:56:22,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:56:22,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:56:22,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:56:22,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:56:22,331 INFO L87 Difference]: Start difference. First operand 690 states and 957 transitions. Second operand has 10 states, 10 states have (on average 4.9) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-06 22:56:24,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:24,908 INFO L93 Difference]: Finished difference Result 1573 states and 2186 transitions. [2023-11-06 22:56:24,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 22:56:24,909 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 130 [2023-11-06 22:56:24,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:24,916 INFO L225 Difference]: With dead ends: 1573 [2023-11-06 22:56:24,917 INFO L226 Difference]: Without dead ends: 951 [2023-11-06 22:56:24,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=170, Invalid=430, Unknown=0, NotChecked=0, Total=600 [2023-11-06 22:56:24,920 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 229 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:24,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 555 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-06 22:56:24,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2023-11-06 22:56:25,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 841. [2023-11-06 22:56:25,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 627 states have (on average 1.3189792663476874) internal successors, (827), 629 states have internal predecessors, (827), 166 states have call successors, (166), 47 states have call predecessors, (166), 47 states have return successors, (166), 164 states have call predecessors, (166), 166 states have call successors, (166) [2023-11-06 22:56:25,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1159 transitions. [2023-11-06 22:56:25,132 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1159 transitions. Word has length 130 [2023-11-06 22:56:25,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:25,133 INFO L495 AbstractCegarLoop]: Abstraction has 841 states and 1159 transitions. [2023-11-06 22:56:25,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-06 22:56:25,133 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1159 transitions. [2023-11-06 22:56:25,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-06 22:56:25,135 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:25,135 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:25,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:25,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-06 22:56:25,343 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:56:25,343 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:25,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1860750616, now seen corresponding path program 1 times [2023-11-06 22:56:25,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:25,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360019361] [2023-11-06 22:56:25,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:25,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:25,373 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:56:25,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1990903988] [2023-11-06 22:56:25,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:25,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:56:25,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:25,375 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:56:25,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-06 22:56:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:25,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-06 22:56:25,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:26,565 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 158 proven. 84 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-06 22:56:26,565 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:56:29,862 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-06 22:56:29,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:56:29,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360019361] [2023-11-06 22:56:29,863 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:56:29,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990903988] [2023-11-06 22:56:29,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1990903988] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-06 22:56:29,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:56:29,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 19 [2023-11-06 22:56:29,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095322162] [2023-11-06 22:56:29,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:29,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:56:29,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:56:29,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:56:29,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2023-11-06 22:56:29,866 INFO L87 Difference]: Start difference. First operand 841 states and 1159 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:56:32,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:32,512 INFO L93 Difference]: Finished difference Result 1596 states and 2210 transitions. [2023-11-06 22:56:32,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:56:32,514 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 131 [2023-11-06 22:56:32,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:32,522 INFO L225 Difference]: With dead ends: 1596 [2023-11-06 22:56:32,522 INFO L226 Difference]: Without dead ends: 1128 [2023-11-06 22:56:32,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2023-11-06 22:56:32,525 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 264 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:32,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 298 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-06 22:56:32,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2023-11-06 22:56:32,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 861. [2023-11-06 22:56:32,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 647 states have (on average 1.3338485316846986) internal successors, (863), 649 states have internal predecessors, (863), 166 states have call successors, (166), 47 states have call predecessors, (166), 47 states have return successors, (166), 164 states have call predecessors, (166), 166 states have call successors, (166) [2023-11-06 22:56:32,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1195 transitions. [2023-11-06 22:56:32,742 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1195 transitions. Word has length 131 [2023-11-06 22:56:32,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:32,742 INFO L495 AbstractCegarLoop]: Abstraction has 861 states and 1195 transitions. [2023-11-06 22:56:32,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:56:32,743 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1195 transitions. [2023-11-06 22:56:32,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-06 22:56:32,745 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:32,745 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:32,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:32,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-06 22:56:32,953 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:56:32,953 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:32,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1180692246, now seen corresponding path program 1 times [2023-11-06 22:56:32,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:32,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554071276] [2023-11-06 22:56:32,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:32,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:32,983 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:56:32,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [75661736] [2023-11-06 22:56:32,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:32,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:56:32,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:32,985 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:56:33,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-06 22:56:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:33,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:56:33,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:33,306 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-06 22:56:33,306 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:56:33,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:56:33,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554071276] [2023-11-06 22:56:33,306 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:56:33,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75661736] [2023-11-06 22:56:33,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75661736] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:33,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:33,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:56:33,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580552939] [2023-11-06 22:56:33,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:33,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:56:33,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:56:33,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:56:33,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:56:33,309 INFO L87 Difference]: Start difference. First operand 861 states and 1195 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:56:33,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:33,891 INFO L93 Difference]: Finished difference Result 1276 states and 1781 transitions. [2023-11-06 22:56:33,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:56:33,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 131 [2023-11-06 22:56:33,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:33,900 INFO L225 Difference]: With dead ends: 1276 [2023-11-06 22:56:33,900 INFO L226 Difference]: Without dead ends: 1055 [2023-11-06 22:56:33,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:56:33,903 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 151 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:33,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 270 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:56:33,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2023-11-06 22:56:34,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 877. [2023-11-06 22:56:34,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 662 states have (on average 1.3353474320241692) internal successors, (884), 664 states have internal predecessors, (884), 166 states have call successors, (166), 48 states have call predecessors, (166), 48 states have return successors, (166), 164 states have call predecessors, (166), 166 states have call successors, (166) [2023-11-06 22:56:34,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1216 transitions. [2023-11-06 22:56:34,117 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1216 transitions. Word has length 131 [2023-11-06 22:56:34,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:34,118 INFO L495 AbstractCegarLoop]: Abstraction has 877 states and 1216 transitions. [2023-11-06 22:56:34,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:56:34,118 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1216 transitions. [2023-11-06 22:56:34,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-06 22:56:34,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:34,121 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:34,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:34,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-06 22:56:34,327 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:56:34,328 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:34,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1209558168, now seen corresponding path program 1 times [2023-11-06 22:56:34,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:34,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235781925] [2023-11-06 22:56:34,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:34,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:34,349 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:56:34,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [338569790] [2023-11-06 22:56:34,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:34,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:56:34,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:34,351 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:56:34,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-06 22:56:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:34,844 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:56:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:35,025 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:56:35,026 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:56:35,027 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:56:35,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:35,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-06 22:56:35,241 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:35,246 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:56:35,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:56:35 BoogieIcfgContainer [2023-11-06 22:56:35,452 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:56:35,452 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:56:35,452 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:56:35,453 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:56:35,453 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:54:37" (3/4) ... [2023-11-06 22:56:35,456 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:56:35,457 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:56:35,458 INFO L158 Benchmark]: Toolchain (without parser) took 118935.78ms. Allocated memory was 138.4MB in the beginning and 247.5MB in the end (delta: 109.1MB). Free memory was 93.4MB in the beginning and 86.1MB in the end (delta: 7.3MB). Peak memory consumption was 118.4MB. Max. memory is 16.1GB. [2023-11-06 22:56:35,458 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 107.0MB. Free memory is still 57.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:56:35,459 INFO L158 Benchmark]: CACSL2BoogieTranslator took 461.54ms. Allocated memory is still 138.4MB. Free memory was 93.4MB in the beginning and 78.3MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-06 22:56:35,459 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.33ms. Allocated memory is still 138.4MB. Free memory was 78.3MB in the beginning and 73.7MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:56:35,459 INFO L158 Benchmark]: Boogie Preprocessor took 46.30ms. Allocated memory is still 138.4MB. Free memory was 73.7MB in the beginning and 71.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:56:35,460 INFO L158 Benchmark]: RCFGBuilder took 785.00ms. Allocated memory is still 138.4MB. Free memory was 71.6MB in the beginning and 90.5MB in the end (delta: -18.9MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2023-11-06 22:56:35,460 INFO L158 Benchmark]: TraceAbstraction took 117535.55ms. Allocated memory was 138.4MB in the beginning and 247.5MB in the end (delta: 109.1MB). Free memory was 89.9MB in the beginning and 87.2MB in the end (delta: 2.7MB). Peak memory consumption was 111.9MB. Max. memory is 16.1GB. [2023-11-06 22:56:35,461 INFO L158 Benchmark]: Witness Printer took 4.93ms. Allocated memory is still 247.5MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:56:35,463 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 107.0MB. Free memory is still 57.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 461.54ms. Allocated memory is still 138.4MB. Free memory was 93.4MB in the beginning and 78.3MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.33ms. Allocated memory is still 138.4MB. Free memory was 78.3MB in the beginning and 73.7MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.30ms. Allocated memory is still 138.4MB. Free memory was 73.7MB in the beginning and 71.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 785.00ms. Allocated memory is still 138.4MB. Free memory was 71.6MB in the beginning and 90.5MB in the end (delta: -18.9MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * TraceAbstraction took 117535.55ms. Allocated memory was 138.4MB in the beginning and 247.5MB in the end (delta: 109.1MB). Free memory was 89.9MB in the beginning and 87.2MB in the end (delta: 2.7MB). Peak memory consumption was 111.9MB. Max. memory is 16.1GB. * Witness Printer took 4.93ms. Allocated memory is still 247.5MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: 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 someBinaryFLOATComparisonOperation at line 177, overapproximation of someUnaryDOUBLEoperation at line 30. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 16; [L23] signed char var_1_5 = -8; [L24] unsigned char var_1_6 = 10; [L25] unsigned char var_1_7 = 128; [L26] unsigned char var_1_8 = 1; [L27] unsigned char var_1_11 = 0; [L28] unsigned char var_1_12 = 0; [L29] signed short int var_1_13 = 200; [L30] float var_1_14 = -0.8; [L31] float var_1_15 = 127.25; [L32] float var_1_16 = 3.5; [L33] unsigned short int var_1_17 = 16; [L34] unsigned char var_1_19 = 1; [L35] unsigned char var_1_20 = 0; [L36] unsigned char var_1_21 = 0; [L37] float var_1_26 = 500.65; [L38] float var_1_30 = 9.8; [L39] unsigned char var_1_31 = 4; [L40] unsigned short int var_1_34 = 1; [L41] unsigned long int var_1_35 = 10; [L42] unsigned char var_1_36 = 10; [L43] unsigned char var_1_38 = 16; [L44] unsigned char var_1_39 = 0; [L45] unsigned short int var_1_40 = 10; [L46] unsigned short int var_1_41 = 128; [L47] unsigned short int var_1_42 = 40597; [L48] signed short int last_1_var_1_1 = 16; [L49] unsigned char last_1_var_1_6 = 10; [L50] unsigned char last_1_var_1_8 = 1; [L51] signed short int last_1_var_1_13 = 200; VAL [isInitial=0, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-8, var_1_6=10, var_1_7=128, var_1_8=1] [L181] isInitial = 1 [L182] FCALL initially() [L183] COND TRUE 1 [L184] CALL updateLastVariables() [L171] last_1_var_1_1 = var_1_1 [L172] last_1_var_1_6 = var_1_6 [L173] last_1_var_1_8 = var_1_8 [L174] last_1_var_1_13 = var_1_13 VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-8, var_1_6=10, var_1_7=128, var_1_8=1] [L184] RET updateLastVariables() [L185] CALL updateVariables() [L141] var_1_5 = __VERIFIER_nondet_char() [L142] CALL assume_abort_if_not(var_1_5 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=128, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=128, var_1_8=1] [L142] RET assume_abort_if_not(var_1_5 >= -127) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=128, var_1_8=1] [L143] CALL assume_abort_if_not(var_1_5 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=128, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=128, var_1_8=1] [L143] RET assume_abort_if_not(var_1_5 <= 127) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=128, var_1_8=1] [L144] var_1_7 = __VERIFIER_nondet_uchar() [L145] CALL assume_abort_if_not(var_1_7 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L145] RET assume_abort_if_not(var_1_7 >= 127) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L146] CALL assume_abort_if_not(var_1_7 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L146] RET assume_abort_if_not(var_1_7 <= 254) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L147] var_1_11 = __VERIFIER_nondet_uchar() [L148] CALL assume_abort_if_not(var_1_11 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L148] RET assume_abort_if_not(var_1_11 >= 1) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L149] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L149] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L150] var_1_12 = __VERIFIER_nondet_uchar() [L151] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L151] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L152] CALL assume_abort_if_not(var_1_12 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L152] RET assume_abort_if_not(var_1_12 <= 0) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L153] var_1_15 = __VERIFIER_nondet_float() [L154] CALL assume_abort_if_not((var_1_15 >= -461168.6018427382800e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L154] RET assume_abort_if_not((var_1_15 >= -461168.6018427382800e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L155] var_1_16 = __VERIFIER_nondet_float() [L156] CALL assume_abort_if_not((var_1_16 >= -461168.6018427382800e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L156] RET assume_abort_if_not((var_1_16 >= -461168.6018427382800e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L157] var_1_20 = __VERIFIER_nondet_uchar() [L158] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L158] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L159] CALL assume_abort_if_not(var_1_20 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L159] RET assume_abort_if_not(var_1_20 <= 0) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L160] var_1_38 = __VERIFIER_nondet_uchar() [L161] CALL assume_abort_if_not(var_1_38 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L161] RET assume_abort_if_not(var_1_38 >= 0) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L162] CALL assume_abort_if_not(var_1_38 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L162] RET assume_abort_if_not(var_1_38 <= 127) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L163] var_1_39 = __VERIFIER_nondet_uchar() [L164] CALL assume_abort_if_not(var_1_39 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L164] RET assume_abort_if_not(var_1_39 >= 0) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L165] CALL assume_abort_if_not(var_1_39 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L165] RET assume_abort_if_not(var_1_39 <= 127) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L166] var_1_42 = __VERIFIER_nondet_ushort() [L167] CALL assume_abort_if_not(var_1_42 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L167] RET assume_abort_if_not(var_1_42 >= 32767) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L168] CALL assume_abort_if_not(var_1_42 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L168] RET assume_abort_if_not(var_1_42 <= 65534) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L185] RET updateVariables() [L186] CALL step() [L55] signed long int stepLocal_6 = last_1_var_1_1; [L56] unsigned char stepLocal_5 = ((((last_1_var_1_1) < (8)) ? (last_1_var_1_1) : (8))) <= var_1_5; VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, stepLocal_5=1, stepLocal_6=16, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L57] COND TRUE stepLocal_5 || last_1_var_1_8 VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, stepLocal_5=1, stepLocal_6=16, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L58] COND FALSE !(stepLocal_6 <= last_1_var_1_6) [L61] var_1_14 = var_1_16 VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, stepLocal_5=1, stepLocal_6=16, var_1_11=1, var_1_12=0, var_1_13=200, var_1_14=3, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L66] COND FALSE !(var_1_14 <= var_1_15) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, stepLocal_5=1, stepLocal_6=16, var_1_11=1, var_1_12=0, var_1_13=200, var_1_14=3, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=10, var_1_7=201, var_1_8=1] [L69] COND TRUE var_1_5 >= -2 [L70] var_1_6 = (var_1_7 - 100) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, stepLocal_5=1, stepLocal_6=16, var_1_11=1, var_1_12=0, var_1_13=200, var_1_14=3, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=101, var_1_7=201, var_1_8=1] [L72] unsigned char stepLocal_4 = var_1_6; [L73] signed long int stepLocal_3 = var_1_6 / var_1_7; VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, stepLocal_3=0, stepLocal_4=101, stepLocal_5=1, stepLocal_6=16, var_1_11=1, var_1_12=0, var_1_13=200, var_1_14=3, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=101, var_1_7=201, var_1_8=1] [L74] COND TRUE last_1_var_1_13 >= stepLocal_3 VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, stepLocal_3=0, stepLocal_4=101, stepLocal_5=1, stepLocal_6=16, var_1_11=1, var_1_12=0, var_1_13=200, var_1_14=3, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=101, var_1_7=201, var_1_8=1] [L75] COND TRUE stepLocal_4 != ((((((((var_1_6) > (last_1_var_1_13)) ? (var_1_6) : (last_1_var_1_13)))) > (var_1_5)) ? (((((var_1_6) > (last_1_var_1_13)) ? (var_1_6) : (last_1_var_1_13)))) : (var_1_5))) [L76] var_1_13 = var_1_7 VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, stepLocal_3=0, stepLocal_4=101, stepLocal_5=1, stepLocal_6=16, var_1_11=1, var_1_12=0, var_1_13=201, var_1_14=3, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=101, var_1_7=201, var_1_8=1] [L83] unsigned char stepLocal_7 = var_1_6; VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, stepLocal_3=0, stepLocal_4=101, stepLocal_5=1, stepLocal_6=16, stepLocal_7=101, var_1_11=1, var_1_12=0, var_1_13=201, var_1_14=3, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=101, var_1_7=201, var_1_8=1] [L84] COND FALSE !(stepLocal_7 > var_1_6) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, stepLocal_3=0, stepLocal_4=101, stepLocal_5=1, stepLocal_6=16, stepLocal_7=101, var_1_11=1, var_1_12=0, var_1_13=201, var_1_14=3, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=101, var_1_7=201, var_1_8=1] [L87] unsigned char stepLocal_0 = var_1_6; VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, stepLocal_0=101, stepLocal_3=0, stepLocal_4=101, stepLocal_5=1, stepLocal_6=16, stepLocal_7=101, var_1_11=1, var_1_12=0, var_1_13=201, var_1_14=3, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=101, var_1_7=201, var_1_8=1] [L88] COND TRUE \read(var_1_19) [L89] var_1_1 = ((((var_1_6) > (var_1_6)) ? (var_1_6) : (var_1_6))) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, stepLocal_0=101, stepLocal_3=0, stepLocal_4=101, stepLocal_5=1, stepLocal_6=16, stepLocal_7=101, var_1_11=1, var_1_12=0, var_1_13=201, var_1_14=3, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=101, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=101, var_1_7=201, var_1_8=1] [L95] unsigned char stepLocal_2 = var_1_19 && var_1_19; [L96] unsigned char stepLocal_1 = var_1_7; VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, stepLocal_0=101, stepLocal_1=201, stepLocal_2=1, stepLocal_3=0, stepLocal_4=101, stepLocal_5=1, stepLocal_6=16, stepLocal_7=101, var_1_11=1, var_1_12=0, var_1_13=201, var_1_14=3, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=101, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=101, var_1_7=201, var_1_8=1] [L97] COND FALSE !((49.5f <= var_1_14) && stepLocal_2) [L104] var_1_8 = var_1_12 VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, stepLocal_0=101, stepLocal_1=201, stepLocal_2=1, stepLocal_3=0, stepLocal_4=101, stepLocal_5=1, stepLocal_6=16, stepLocal_7=101, var_1_11=1, var_1_12=0, var_1_13=201, var_1_14=3, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=101, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=101, var_1_7=201, var_1_8=0] [L106] COND TRUE var_1_11 || var_1_8 [L107] var_1_21 = ((var_1_7 > -4) || var_1_11) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, stepLocal_0=101, stepLocal_1=201, stepLocal_2=1, stepLocal_3=0, stepLocal_4=101, stepLocal_5=1, stepLocal_6=16, stepLocal_7=101, var_1_11=1, var_1_12=0, var_1_13=201, var_1_14=3, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=101, var_1_20=0, var_1_21=1, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=101, var_1_7=201, var_1_8=0] [L109] COND FALSE !(((var_1_1 + 25) % var_1_7) < 2) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, stepLocal_0=101, stepLocal_1=201, stepLocal_2=1, stepLocal_3=0, stepLocal_4=101, stepLocal_5=1, stepLocal_6=16, stepLocal_7=101, var_1_11=1, var_1_12=0, var_1_13=201, var_1_14=3, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=101, var_1_20=0, var_1_21=1, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=101, var_1_7=201, var_1_8=0] [L112] COND TRUE (- var_1_15) < ((((var_1_14) > (var_1_16)) ? (var_1_14) : (var_1_16))) [L113] var_1_30 = var_1_16 VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, stepLocal_0=101, stepLocal_1=201, stepLocal_2=1, stepLocal_3=0, stepLocal_4=101, stepLocal_5=1, stepLocal_6=16, stepLocal_7=101, var_1_11=1, var_1_12=0, var_1_13=201, var_1_14=3, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=101, var_1_20=0, var_1_21=1, var_1_26=10013/20, var_1_30=3, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=101, var_1_7=201, var_1_8=0] [L115] COND TRUE ((((((((var_1_7) < 0 ) ? -(var_1_7) : (var_1_7)))) < (var_1_5)) ? (((((var_1_7) < 0 ) ? -(var_1_7) : (var_1_7)))) : (var_1_5))) <= var_1_1 [L116] var_1_31 = var_1_7 VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, stepLocal_0=101, stepLocal_1=201, stepLocal_2=1, stepLocal_3=0, stepLocal_4=101, stepLocal_5=1, stepLocal_6=16, stepLocal_7=101, var_1_11=1, var_1_12=0, var_1_13=201, var_1_14=3, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=101, var_1_20=0, var_1_21=1, var_1_26=10013/20, var_1_30=3, var_1_31=201, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=101, var_1_7=201, var_1_8=0] [L118] COND TRUE var_1_6 < ((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) [L119] var_1_34 = ((((((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6)))) > (var_1_7)) ? (((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6)))) : (var_1_7))) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, stepLocal_0=101, stepLocal_1=201, stepLocal_2=1, stepLocal_3=0, stepLocal_4=101, stepLocal_5=1, stepLocal_6=16, stepLocal_7=101, var_1_11=1, var_1_12=0, var_1_13=201, var_1_14=3, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=101, var_1_20=0, var_1_21=1, var_1_26=10013/20, var_1_30=3, var_1_31=201, var_1_34=201, var_1_35=10, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=101, var_1_7=201, var_1_8=0] [L121] COND TRUE \read(var_1_11) [L122] var_1_35 = var_1_7 VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, stepLocal_0=101, stepLocal_1=201, stepLocal_2=1, stepLocal_3=0, stepLocal_4=101, stepLocal_5=1, stepLocal_6=16, stepLocal_7=101, var_1_11=1, var_1_12=0, var_1_13=201, var_1_14=3, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=101, var_1_20=0, var_1_21=1, var_1_26=10013/20, var_1_30=3, var_1_31=201, var_1_34=201, var_1_35=201, var_1_36=10, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=101, var_1_7=201, var_1_8=0] [L124] COND TRUE \read(var_1_11) [L125] var_1_36 = (var_1_7 - var_1_38) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, stepLocal_0=101, stepLocal_1=201, stepLocal_2=1, stepLocal_3=0, stepLocal_4=101, stepLocal_5=1, stepLocal_6=16, stepLocal_7=101, var_1_11=1, var_1_12=0, var_1_13=201, var_1_14=3, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=101, var_1_20=0, var_1_21=1, var_1_26=10013/20, var_1_30=3, var_1_31=201, var_1_34=201, var_1_35=201, var_1_36=74, var_1_38=127, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=101, var_1_7=201, var_1_8=0] [L129] COND TRUE (- var_1_7) != var_1_6 [L130] var_1_40 = var_1_39 VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, stepLocal_0=101, stepLocal_1=201, stepLocal_2=1, stepLocal_3=0, stepLocal_4=101, stepLocal_5=1, stepLocal_6=16, stepLocal_7=101, var_1_11=1, var_1_12=0, var_1_13=201, var_1_14=3, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=101, var_1_20=0, var_1_21=1, var_1_26=10013/20, var_1_30=3, var_1_31=201, var_1_34=201, var_1_35=201, var_1_36=74, var_1_38=127, var_1_39=0, var_1_40=0, var_1_41=128, var_1_42=65534, var_1_5=8, var_1_6=101, var_1_7=201, var_1_8=0] [L132] COND FALSE !(var_1_7 <= (~ var_1_7)) [L137] var_1_41 = var_1_6 VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, stepLocal_0=101, stepLocal_1=201, stepLocal_2=1, stepLocal_3=0, stepLocal_4=101, stepLocal_5=1, stepLocal_6=16, stepLocal_7=101, var_1_11=1, var_1_12=0, var_1_13=201, var_1_14=3, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=101, var_1_20=0, var_1_21=1, var_1_26=10013/20, var_1_30=3, var_1_31=201, var_1_34=201, var_1_35=201, var_1_36=74, var_1_38=127, var_1_39=0, var_1_40=0, var_1_41=101, var_1_42=65534, var_1_5=8, var_1_6=101, var_1_7=201, var_1_8=0] [L186] RET step() [L187] CALL, EXPR property() [L177-L178] return ((((((var_1_19 ? (var_1_1 == ((signed short int) ((((var_1_6) > (var_1_6)) ? (var_1_6) : (var_1_6))))) : ((((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5))) >= var_1_6) ? (var_1_1 == ((signed short int) var_1_5)) : 1)) && ((var_1_5 >= -2) ? (var_1_6 == ((unsigned char) (var_1_7 - 100))) : 1)) && (((49.5f <= var_1_14) && (var_1_19 && var_1_19)) ? ((var_1_13 < var_1_7) ? (var_1_8 == ((unsigned char) (var_1_19 || var_1_11))) : (var_1_8 == ((unsigned char) var_1_11))) : (var_1_8 == ((unsigned char) var_1_12)))) && ((last_1_var_1_13 >= (var_1_6 / var_1_7)) ? ((var_1_6 != ((((((((var_1_6) > (last_1_var_1_13)) ? (var_1_6) : (last_1_var_1_13)))) > (var_1_5)) ? (((((var_1_6) > (last_1_var_1_13)) ? (var_1_6) : (last_1_var_1_13)))) : (var_1_5)))) ? (var_1_13 == ((signed short int) var_1_7)) : (var_1_13 == ((signed short int) last_1_var_1_13))) : (var_1_13 == ((signed short int) var_1_6)))) && (((((((last_1_var_1_1) < (8)) ? (last_1_var_1_1) : (8))) <= var_1_5) || last_1_var_1_8) ? ((last_1_var_1_1 <= last_1_var_1_6) ? (var_1_14 == ((float) (var_1_15 + var_1_16))) : (var_1_14 == ((float) var_1_16))) : (var_1_14 == ((float) var_1_16)))) && ((var_1_6 > var_1_6) ? (var_1_17 == ((unsigned short int) ((((25) > ((var_1_13 + var_1_6))) ? (25) : ((var_1_13 + var_1_6)))))) : 1)) && ((var_1_14 <= var_1_15) ? (var_1_19 == ((unsigned char) (var_1_12 || var_1_20))) : 1) ; VAL [\result=0, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=201, var_1_14=3, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=101, var_1_20=0, var_1_21=1, var_1_26=10013/20, var_1_30=3, var_1_31=201, var_1_34=201, var_1_35=201, var_1_36=74, var_1_38=127, var_1_39=0, var_1_40=0, var_1_41=101, var_1_42=65534, var_1_5=8, var_1_6=101, var_1_7=201, var_1_8=0] [L187] RET, EXPR property() [L187] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=201, var_1_14=3, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=101, var_1_20=0, var_1_21=1, var_1_26=10013/20, var_1_30=3, var_1_31=201, var_1_34=201, var_1_35=201, var_1_36=74, var_1_38=127, var_1_39=0, var_1_40=0, var_1_41=101, var_1_42=65534, var_1_5=8, var_1_6=101, var_1_7=201, var_1_8=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=201, var_1_14=3, var_1_15=2, var_1_16=3, var_1_17=16, var_1_19=1, var_1_1=101, var_1_20=0, var_1_21=1, var_1_26=10013/20, var_1_30=3, var_1_31=201, var_1_34=201, var_1_35=201, var_1_36=74, var_1_38=127, var_1_39=0, var_1_40=0, var_1_41=101, var_1_42=65534, var_1_5=8, var_1_6=101, var_1_7=201, var_1_8=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 117.2s, OverallIterations: 13, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 93.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3470 SdHoareTripleChecker+Valid, 34.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3460 mSDsluCounter, 4862 SdHoareTripleChecker+Invalid, 34.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3460 mSDsCounter, 521 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3057 IncrementalHoareTripleChecker+Invalid, 3578 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 521 mSolverCounterUnsat, 1402 mSDtfsCounter, 3057 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2437 GetRequests, 2227 SyntacticMatches, 2 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2821 ImplicationChecksByTransitivity, 60.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=877occurred in iteration=12, InterpolantAutomatonStates: 175, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 1972 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 15.0s InterpolantComputationTime, 1817 NumberOfCodeBlocks, 1817 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2189 ConstructedInterpolants, 1 QuantifiedInterpolants, 12089 SizeOfPredicates, 55 NumberOfNonLiveVariables, 4134 ConjunctsInSsa, 140 ConjunctsInUnsatCore, 17 InterpolantComputations, 8 PerfectInterpolantSequences, 9915/10404 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-06 22:56:35,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-42.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 19a60273c9036fd322b397de31454eb141b9f154ab77bf61e90ba0f48087b2d9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:56:38,381 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:56:38,537 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-06 22:56:38,548 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:56:38,549 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:56:38,599 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:56:38,600 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:56:38,601 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:56:38,602 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:56:38,608 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:56:38,609 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:56:38,609 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:56:38,610 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:56:38,612 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:56:38,613 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:56:38,613 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:56:38,614 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:56:38,614 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:56:38,615 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:56:38,616 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:56:38,616 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:56:38,617 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:56:38,618 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:56:38,618 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:56:38,618 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:56:38,619 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:56:38,619 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:56:38,620 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:56:38,620 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:56:38,621 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:56:38,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:56:38,623 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:56:38,623 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:56:38,624 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:56:38,624 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:56:38,624 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:56:38,625 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:56:38,625 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:56:38,628 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:56:38,629 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:56:38,629 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:56:38,630 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:56:38,630 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_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19a60273c9036fd322b397de31454eb141b9f154ab77bf61e90ba0f48087b2d9 [2023-11-06 22:56:39,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:56:39,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:56:39,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:56:39,109 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:56:39,110 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:56:39,112 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-42.i [2023-11-06 22:56:42,604 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:56:42,884 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:56:42,885 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-42.i [2023-11-06 22:56:42,903 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/data/30f3837bd/2f296291a0c342a9ab2e27be891865e6/FLAGf6a632a01 [2023-11-06 22:56:42,930 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/data/30f3837bd/2f296291a0c342a9ab2e27be891865e6 [2023-11-06 22:56:42,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:56:42,939 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:56:42,943 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:56:42,943 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:56:42,949 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:56:42,950 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:56:42" (1/1) ... [2023-11-06 22:56:42,952 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cf9c555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:42, skipping insertion in model container [2023-11-06 22:56:42,952 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:56:42" (1/1) ... [2023-11-06 22:56:43,044 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:56:43,235 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_60aec0df-d56c-4954-9ede-8d944a3da2d5/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-42.i[919,932] [2023-11-06 22:56:43,370 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:56:43,405 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:56:43,428 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_60aec0df-d56c-4954-9ede-8d944a3da2d5/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-42.i[919,932] [2023-11-06 22:56:43,502 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:56:43,536 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:56:43,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:43 WrapperNode [2023-11-06 22:56:43,537 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:56:43,539 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:56:43,539 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:56:43,539 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:56:43,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:43" (1/1) ... [2023-11-06 22:56:43,565 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:43" (1/1) ... [2023-11-06 22:56:43,607 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 170 [2023-11-06 22:56:43,607 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:56:43,608 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:56:43,609 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:56:43,609 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:56:43,621 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:43" (1/1) ... [2023-11-06 22:56:43,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:43" (1/1) ... [2023-11-06 22:56:43,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:43" (1/1) ... [2023-11-06 22:56:43,628 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:43" (1/1) ... [2023-11-06 22:56:43,656 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:43" (1/1) ... [2023-11-06 22:56:43,677 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:43" (1/1) ... [2023-11-06 22:56:43,681 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:43" (1/1) ... [2023-11-06 22:56:43,684 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:43" (1/1) ... [2023-11-06 22:56:43,690 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:56:43,691 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:56:43,691 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:56:43,708 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:56:43,712 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:43" (1/1) ... [2023-11-06 22:56:43,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:56:43,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:43,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:43,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:56:43,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:56:43,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:56:43,815 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:56:43,816 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:56:43,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:56:43,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:56:43,919 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:56:43,921 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:56:45,092 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:56:45,109 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:56:45,110 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:56:45,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:56:45 BoogieIcfgContainer [2023-11-06 22:56:45,114 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:56:45,121 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:56:45,121 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:56:45,125 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:56:45,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:56:42" (1/3) ... [2023-11-06 22:56:45,126 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d243a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:56:45, skipping insertion in model container [2023-11-06 22:56:45,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:43" (2/3) ... [2023-11-06 22:56:45,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d243a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:56:45, skipping insertion in model container [2023-11-06 22:56:45,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:56:45" (3/3) ... [2023-11-06 22:56:45,132 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-42.i [2023-11-06 22:56:45,156 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:56:45,156 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:56:45,241 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:56:45,250 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2e17fb8d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:56:45,250 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:56:45,259 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 51 states have (on average 1.5098039215686274) internal successors, (77), 52 states have internal predecessors, (77), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 22:56:45,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-06 22:56:45,282 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:45,283 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:45,286 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:56:45,294 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:45,295 INFO L85 PathProgramCache]: Analyzing trace with hash 293078757, now seen corresponding path program 1 times [2023-11-06 22:56:45,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:56:45,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [675910342] [2023-11-06 22:56:45,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:45,319 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:45,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:56:45,329 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:56:45,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-06 22:56:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:45,912 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:56:45,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:45,992 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-06 22:56:45,993 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:56:45,994 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:56:45,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [675910342] [2023-11-06 22:56:45,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [675910342] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:45,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:45,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:56:45,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334827653] [2023-11-06 22:56:45,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:46,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:56:46,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:56:46,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:56:46,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:56:46,048 INFO L87 Difference]: Start difference. First operand has 72 states, 51 states have (on average 1.5098039215686274) internal successors, (77), 52 states have internal predecessors, (77), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-06 22:56:46,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:46,092 INFO L93 Difference]: Finished difference Result 136 states and 236 transitions. [2023-11-06 22:56:46,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:56:46,095 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 129 [2023-11-06 22:56:46,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:46,105 INFO L225 Difference]: With dead ends: 136 [2023-11-06 22:56:46,106 INFO L226 Difference]: Without dead ends: 67 [2023-11-06 22:56:46,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:56:46,116 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:46,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:56:46,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-06 22:56:46,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2023-11-06 22:56:46,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 47 states have (on average 1.425531914893617) internal successors, (67), 47 states have internal predecessors, (67), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 22:56:46,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 103 transitions. [2023-11-06 22:56:46,174 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 103 transitions. Word has length 129 [2023-11-06 22:56:46,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:46,179 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 103 transitions. [2023-11-06 22:56:46,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-06 22:56:46,180 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 103 transitions. [2023-11-06 22:56:46,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-06 22:56:46,191 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:46,191 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:46,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-06 22:56:46,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:46,413 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:56:46,414 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:46,414 INFO L85 PathProgramCache]: Analyzing trace with hash 2013606881, now seen corresponding path program 1 times [2023-11-06 22:56:46,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:56:46,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [456530375] [2023-11-06 22:56:46,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:46,416 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:46,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:56:46,418 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:56:46,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-06 22:56:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:46,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:56:46,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:47,361 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-06 22:56:47,361 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:56:47,362 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:56:47,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [456530375] [2023-11-06 22:56:47,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [456530375] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:47,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:47,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:56:47,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724243143] [2023-11-06 22:56:47,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:47,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:56:47,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:56:47,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:56:47,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:56:47,373 INFO L87 Difference]: Start difference. First operand 67 states and 103 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:56:47,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:47,964 INFO L93 Difference]: Finished difference Result 196 states and 304 transitions. [2023-11-06 22:56:47,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:56:47,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 129 [2023-11-06 22:56:47,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:47,976 INFO L225 Difference]: With dead ends: 196 [2023-11-06 22:56:47,977 INFO L226 Difference]: Without dead ends: 132 [2023-11-06 22:56:47,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:56:47,980 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 87 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:47,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 289 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 22:56:47,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-11-06 22:56:48,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 102. [2023-11-06 22:56:48,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 63 states have internal predecessors, (83), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-06 22:56:48,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 155 transitions. [2023-11-06 22:56:48,030 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 155 transitions. Word has length 129 [2023-11-06 22:56:48,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:48,032 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 155 transitions. [2023-11-06 22:56:48,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:56:48,033 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 155 transitions. [2023-11-06 22:56:48,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-06 22:56:48,039 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:48,042 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:48,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:48,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:48,263 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:56:48,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:48,264 INFO L85 PathProgramCache]: Analyzing trace with hash -105600659, now seen corresponding path program 1 times [2023-11-06 22:56:48,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:56:48,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1373976682] [2023-11-06 22:56:48,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:48,266 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:48,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:56:48,267 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:56:48,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-06 22:56:48,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:48,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:56:48,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:49,763 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-06 22:56:49,766 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:56:49,767 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:56:49,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1373976682] [2023-11-06 22:56:49,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1373976682] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:49,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:49,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:56:49,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195083711] [2023-11-06 22:56:49,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:49,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:56:49,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:56:49,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:56:49,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:56:49,772 INFO L87 Difference]: Start difference. First operand 102 states and 155 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:56:51,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:51,063 INFO L93 Difference]: Finished difference Result 257 states and 397 transitions. [2023-11-06 22:56:51,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:56:51,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2023-11-06 22:56:51,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:51,076 INFO L225 Difference]: With dead ends: 257 [2023-11-06 22:56:51,076 INFO L226 Difference]: Without dead ends: 193 [2023-11-06 22:56:51,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:56:51,079 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 151 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:51,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 361 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-06 22:56:51,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-11-06 22:56:51,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 164. [2023-11-06 22:56:51,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-06 22:56:51,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 252 transitions. [2023-11-06 22:56:51,142 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 252 transitions. Word has length 130 [2023-11-06 22:56:51,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:51,143 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 252 transitions. [2023-11-06 22:56:51,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:56:51,144 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 252 transitions. [2023-11-06 22:56:51,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-06 22:56:51,156 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:51,156 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:51,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:51,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:51,361 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:56:51,362 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:51,362 INFO L85 PathProgramCache]: Analyzing trace with hash -239614165, now seen corresponding path program 1 times [2023-11-06 22:56:51,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:56:51,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [691058974] [2023-11-06 22:56:51,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:51,363 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:51,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:56:51,365 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:56:51,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-06 22:56:51,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:51,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:56:51,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:51,792 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-06 22:56:51,792 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:56:51,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:56:51,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [691058974] [2023-11-06 22:56:51,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [691058974] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:51,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:51,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:56:51,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082264936] [2023-11-06 22:56:51,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:51,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:56:51,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:56:51,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:56:51,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:56:51,797 INFO L87 Difference]: Start difference. First operand 164 states and 252 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:56:52,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:52,132 INFO L93 Difference]: Finished difference Result 290 states and 449 transitions. [2023-11-06 22:56:52,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:56:52,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2023-11-06 22:56:52,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:52,146 INFO L225 Difference]: With dead ends: 290 [2023-11-06 22:56:52,147 INFO L226 Difference]: Without dead ends: 164 [2023-11-06 22:56:52,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:56:52,151 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 28 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:52,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 157 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:56:52,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-11-06 22:56:52,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2023-11-06 22:56:52,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 106 states have (on average 1.3396226415094339) internal successors, (142), 106 states have internal predecessors, (142), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-06 22:56:52,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 250 transitions. [2023-11-06 22:56:52,195 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 250 transitions. Word has length 130 [2023-11-06 22:56:52,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:52,196 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 250 transitions. [2023-11-06 22:56:52,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:56:52,197 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 250 transitions. [2023-11-06 22:56:52,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-06 22:56:52,200 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:52,200 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:52,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:52,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:52,413 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:56:52,414 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:52,414 INFO L85 PathProgramCache]: Analyzing trace with hash 2061208425, now seen corresponding path program 1 times [2023-11-06 22:56:52,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:56:52,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062506091] [2023-11-06 22:56:52,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:52,415 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:52,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:56:52,418 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:56:52,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-06 22:56:52,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:52,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:56:52,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:53,328 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 401 proven. 45 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2023-11-06 22:56:53,329 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:56:53,821 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 51 proven. 48 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2023-11-06 22:56:53,822 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:56:53,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062506091] [2023-11-06 22:56:53,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2062506091] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:56:53,822 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:56:53,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2023-11-06 22:56:53,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618156102] [2023-11-06 22:56:53,823 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:56:53,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-06 22:56:53,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:56:53,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-06 22:56:53,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:56:53,826 INFO L87 Difference]: Start difference. First operand 164 states and 250 transitions. Second operand has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 3 states have call successors, (28), 3 states have call predecessors, (28), 7 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-06 22:56:55,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:55,360 INFO L93 Difference]: Finished difference Result 357 states and 509 transitions. [2023-11-06 22:56:55,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-06 22:56:55,362 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 3 states have call successors, (28), 3 states have call predecessors, (28), 7 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 130 [2023-11-06 22:56:55,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:55,366 INFO L225 Difference]: With dead ends: 357 [2023-11-06 22:56:55,366 INFO L226 Difference]: Without dead ends: 293 [2023-11-06 22:56:55,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 248 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=315, Invalid=741, Unknown=0, NotChecked=0, Total=1056 [2023-11-06 22:56:55,370 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 272 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:55,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 506 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-06 22:56:55,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-11-06 22:56:55,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 267. [2023-11-06 22:56:55,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 182 states have (on average 1.3131868131868132) internal successors, (239), 182 states have internal predecessors, (239), 72 states have call successors, (72), 12 states have call predecessors, (72), 12 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2023-11-06 22:56:55,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 383 transitions. [2023-11-06 22:56:55,447 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 383 transitions. Word has length 130 [2023-11-06 22:56:55,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:55,449 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 383 transitions. [2023-11-06 22:56:55,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 3 states have call successors, (28), 3 states have call predecessors, (28), 7 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-06 22:56:55,450 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 383 transitions. [2023-11-06 22:56:55,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-06 22:56:55,453 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:55,453 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:55,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-06 22:56:55,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:55,670 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:56:55,670 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:55,671 INFO L85 PathProgramCache]: Analyzing trace with hash 255770091, now seen corresponding path program 1 times [2023-11-06 22:56:55,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:56:55,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1086270081] [2023-11-06 22:56:55,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:55,672 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:55,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:56:55,674 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:56:55,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-06 22:56:56,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:56,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:56:56,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:56,543 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 141 proven. 45 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2023-11-06 22:56:56,544 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:56:56,706 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:56:56,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1086270081] [2023-11-06 22:56:56,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1086270081] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:56:56,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1976964225] [2023-11-06 22:56:56,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:56,708 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 22:56:56,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 22:56:56,713 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 22:56:56,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-06 22:56:57,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:57,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:56:57,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:58,778 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-06 22:56:58,778 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:56:58,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1976964225] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:58,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:56:58,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2023-11-06 22:56:58,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958563464] [2023-11-06 22:56:58,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:58,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:56:58,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:56:58,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:56:58,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:56:58,785 INFO L87 Difference]: Start difference. First operand 267 states and 383 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:57:04,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:57:04,394 INFO L93 Difference]: Finished difference Result 802 states and 1166 transitions. [2023-11-06 22:57:04,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:57:04,404 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2023-11-06 22:57:04,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:57:04,411 INFO L225 Difference]: With dead ends: 802 [2023-11-06 22:57:04,411 INFO L226 Difference]: Without dead ends: 661 [2023-11-06 22:57:04,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:57:04,414 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 215 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:57:04,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 487 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-11-06 22:57:04,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2023-11-06 22:57:04,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 574. [2023-11-06 22:57:04,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 420 states have (on average 1.3666666666666667) internal successors, (574), 422 states have internal predecessors, (574), 130 states have call successors, (130), 23 states have call predecessors, (130), 23 states have return successors, (130), 128 states have call predecessors, (130), 130 states have call successors, (130) [2023-11-06 22:57:04,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 834 transitions. [2023-11-06 22:57:04,533 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 834 transitions. Word has length 130 [2023-11-06 22:57:04,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:57:04,534 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 834 transitions. [2023-11-06 22:57:04,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:57:04,535 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 834 transitions. [2023-11-06 22:57:04,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-06 22:57:04,537 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:57:04,538 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:57:04,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:57:04,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:57:04,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt [2023-11-06 22:57:04,953 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:57:04,954 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:57:04,954 INFO L85 PathProgramCache]: Analyzing trace with hash 474624809, now seen corresponding path program 1 times [2023-11-06 22:57:04,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:57:04,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1814469099] [2023-11-06 22:57:04,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:57:04,956 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:57:04,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:57:04,957 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:57:04,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-06 22:57:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:05,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:57:05,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:57:05,776 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-06 22:57:05,777 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:57:05,777 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:57:05,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1814469099] [2023-11-06 22:57:05,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1814469099] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:57:05,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:57:05,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:57:05,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170136320] [2023-11-06 22:57:05,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:57:05,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:57:05,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:57:05,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:57:05,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:57:05,781 INFO L87 Difference]: Start difference. First operand 574 states and 834 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:57:06,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:57:06,586 INFO L93 Difference]: Finished difference Result 1513 states and 2209 transitions. [2023-11-06 22:57:06,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:57:06,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2023-11-06 22:57:06,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:57:06,600 INFO L225 Difference]: With dead ends: 1513 [2023-11-06 22:57:06,600 INFO L226 Difference]: Without dead ends: 1069 [2023-11-06 22:57:06,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:57:06,604 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 123 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:57:06,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 306 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 22:57:06,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2023-11-06 22:57:06,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 894. [2023-11-06 22:57:06,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 656 states have (on average 1.3719512195121952) internal successors, (900), 658 states have internal predecessors, (900), 202 states have call successors, (202), 35 states have call predecessors, (202), 35 states have return successors, (202), 200 states have call predecessors, (202), 202 states have call successors, (202) [2023-11-06 22:57:06,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1304 transitions. [2023-11-06 22:57:06,777 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1304 transitions. Word has length 130 [2023-11-06 22:57:06,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:57:06,779 INFO L495 AbstractCegarLoop]: Abstraction has 894 states and 1304 transitions. [2023-11-06 22:57:06,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:57:06,780 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1304 transitions. [2023-11-06 22:57:06,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-06 22:57:06,784 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:57:06,784 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:57:06,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:57:07,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:57:07,005 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:57:07,005 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:57:07,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1097424877, now seen corresponding path program 1 times [2023-11-06 22:57:07,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:57:07,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [747252070] [2023-11-06 22:57:07,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:57:07,007 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:57:07,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:57:07,013 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:57:07,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-06 22:57:07,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:07,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:57:07,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:57:09,276 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 141 proven. 45 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2023-11-06 22:57:09,276 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:57:12,069 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:57:12,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [747252070] [2023-11-06 22:57:12,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [747252070] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:57:12,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [791773325] [2023-11-06 22:57:12,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:57:12,070 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 22:57:12,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 22:57:12,071 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 22:57:12,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-06 22:57:13,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:13,082 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:57:13,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:57:14,434 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-06 22:57:14,435 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:57:14,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [791773325] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:57:14,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:57:14,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 8 [2023-11-06 22:57:14,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740914918] [2023-11-06 22:57:14,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:57:14,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:57:14,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:57:14,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:57:14,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:57:14,437 INFO L87 Difference]: Start difference. First operand 894 states and 1304 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:57:17,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:57:17,886 INFO L93 Difference]: Finished difference Result 1793 states and 2622 transitions. [2023-11-06 22:57:17,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:57:17,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2023-11-06 22:57:17,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:57:17,897 INFO L225 Difference]: With dead ends: 1793 [2023-11-06 22:57:17,897 INFO L226 Difference]: Without dead ends: 959 [2023-11-06 22:57:17,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:57:17,902 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 131 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:57:17,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 406 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-06 22:57:17,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2023-11-06 22:57:18,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 890. [2023-11-06 22:57:18,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 890 states, 652 states have (on average 1.361963190184049) internal successors, (888), 654 states have internal predecessors, (888), 202 states have call successors, (202), 35 states have call predecessors, (202), 35 states have return successors, (202), 200 states have call predecessors, (202), 202 states have call successors, (202) [2023-11-06 22:57:18,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1292 transitions. [2023-11-06 22:57:18,056 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 1292 transitions. Word has length 130 [2023-11-06 22:57:18,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:57:18,057 INFO L495 AbstractCegarLoop]: Abstraction has 890 states and 1292 transitions. [2023-11-06 22:57:18,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:57:18,058 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 1292 transitions. [2023-11-06 22:57:18,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-06 22:57:18,060 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:57:18,060 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:57:18,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:57:18,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:57:18,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:57:18,476 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:57:18,476 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:57:18,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1467723606, now seen corresponding path program 1 times [2023-11-06 22:57:18,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:57:18,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [414373550] [2023-11-06 22:57:18,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:57:18,477 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:57:18,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:57:18,478 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:57:18,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-06 22:57:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:18,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:57:18,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:57:19,260 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 141 proven. 45 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2023-11-06 22:57:19,260 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:57:24,656 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-06 22:57:24,657 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:57:24,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [414373550] [2023-11-06 22:57:24,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [414373550] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:57:24,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:57:24,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-06 22:57:24,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744170463] [2023-11-06 22:57:24,658 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:57:24,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:57:24,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:57:24,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:57:24,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:57:24,661 INFO L87 Difference]: Start difference. First operand 890 states and 1292 transitions. Second operand has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 12 states have internal predecessors, (77), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2023-11-06 22:57:39,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:57:39,809 INFO L93 Difference]: Finished difference Result 1742 states and 2432 transitions. [2023-11-06 22:57:39,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-06 22:57:39,810 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 12 states have internal predecessors, (77), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 131 [2023-11-06 22:57:39,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:57:39,819 INFO L225 Difference]: With dead ends: 1742 [2023-11-06 22:57:39,819 INFO L226 Difference]: Without dead ends: 1368 [2023-11-06 22:57:39,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=368, Invalid=822, Unknown=0, NotChecked=0, Total=1190 [2023-11-06 22:57:39,823 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 247 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:57:39,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 365 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2023-11-06 22:57:39,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2023-11-06 22:57:39,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 1093. [2023-11-06 22:57:39,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1093 states, 819 states have (on average 1.3357753357753357) internal successors, (1094), 829 states have internal predecessors, (1094), 218 states have call successors, (218), 55 states have call predecessors, (218), 55 states have return successors, (218), 208 states have call predecessors, (218), 218 states have call successors, (218) [2023-11-06 22:57:39,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1530 transitions. [2023-11-06 22:57:39,981 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1530 transitions. Word has length 131 [2023-11-06 22:57:39,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:57:39,982 INFO L495 AbstractCegarLoop]: Abstraction has 1093 states and 1530 transitions. [2023-11-06 22:57:39,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 12 states have internal predecessors, (77), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2023-11-06 22:57:39,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1530 transitions. [2023-11-06 22:57:39,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-06 22:57:39,985 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:57:39,985 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:57:40,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:57:40,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:57:40,210 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:57:40,210 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:57:40,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1209558168, now seen corresponding path program 1 times [2023-11-06 22:57:40,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:57:40,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291785462] [2023-11-06 22:57:40,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:57:40,211 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:57:40,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:57:40,212 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:57:40,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aec0df-d56c-4954-9ede-8d944a3da2d5/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-06 22:57:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:40,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-06 22:57:40,563 INFO L285 TraceCheckSpWp]: Computing forward predicates...