./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4de94aaabb885b39de7c063dad9a583cbef1a5037a721fe952ddb512087f6e33 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 21:09:23,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:09:23,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:09:24,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:09:24,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:09:24,008 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:09:24,010 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:09:24,011 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:09:24,013 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:09:24,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:09:24,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:09:24,017 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:09:24,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:09:24,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:09:24,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:09:24,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:09:24,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:09:24,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:09:24,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:09:24,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:09:24,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:09:24,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:09:24,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:09:24,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:09:24,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:09:24,037 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:09:24,038 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:09:24,039 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:09:24,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:09:24,041 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:09:24,041 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:09:24,042 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:09:24,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:09:24,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:09:24,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:09:24,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:09:24,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:09:24,047 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:09:24,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:09:24,049 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:09:24,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:09:24,051 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 21:09:24,073 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:09:24,074 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:09:24,074 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:09:24,075 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:09:24,076 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:09:24,076 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:09:24,077 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:09:24,077 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:09:24,078 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:09:24,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:09:24,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:09:24,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:09:24,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:09:24,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:09:24,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:09:24,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:09:24,080 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:09:24,080 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:09:24,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:09:24,081 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:09:24,081 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:09:24,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:09:24,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:09:24,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:09:24,083 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:09:24,083 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:09:24,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:09:24,084 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:09:24,084 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:09:24,084 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:09:24,084 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4de94aaabb885b39de7c063dad9a583cbef1a5037a721fe952ddb512087f6e33 [2022-11-02 21:09:24,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:09:24,426 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:09:24,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:09:24,432 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:09:24,433 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:09:24,434 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c [2022-11-02 21:09:24,512 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/data/d17049617/560f747b543741db9dafc6954de65cdd/FLAG9b3fbd904 [2022-11-02 21:09:25,078 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:09:25,078 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c [2022-11-02 21:09:25,104 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/data/d17049617/560f747b543741db9dafc6954de65cdd/FLAG9b3fbd904 [2022-11-02 21:09:25,405 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/data/d17049617/560f747b543741db9dafc6954de65cdd [2022-11-02 21:09:25,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:09:25,410 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:09:25,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:09:25,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:09:25,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:09:25,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:09:25" (1/1) ... [2022-11-02 21:09:25,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@85effe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:25, skipping insertion in model container [2022-11-02 21:09:25,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:09:25" (1/1) ... [2022-11-02 21:09:25,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:09:25,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:09:25,719 WARN L230 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_89abb637-2797-4b98-9086-c9642ecfdc44/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c[1120,1133] [2022-11-02 21:09:25,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:09:25,959 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:09:25,971 WARN L230 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_89abb637-2797-4b98-9086-c9642ecfdc44/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c[1120,1133] [2022-11-02 21:09:26,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:09:26,067 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:09:26,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:26 WrapperNode [2022-11-02 21:09:26,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:09:26,069 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:09:26,069 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:09:26,069 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:09:26,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:26" (1/1) ... [2022-11-02 21:09:26,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:26" (1/1) ... [2022-11-02 21:09:26,188 INFO L138 Inliner]: procedures = 11, calls = 5, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 469 [2022-11-02 21:09:26,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:09:26,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:09:26,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:09:26,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:09:26,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:26" (1/1) ... [2022-11-02 21:09:26,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:26" (1/1) ... [2022-11-02 21:09:26,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:26" (1/1) ... [2022-11-02 21:09:26,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:26" (1/1) ... [2022-11-02 21:09:26,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:26" (1/1) ... [2022-11-02 21:09:26,236 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:26" (1/1) ... [2022-11-02 21:09:26,241 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:26" (1/1) ... [2022-11-02 21:09:26,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:26" (1/1) ... [2022-11-02 21:09:26,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:09:26,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:09:26,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:09:26,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:09:26,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:26" (1/1) ... [2022-11-02 21:09:26,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:09:26,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:09:26,313 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:09:26,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:09:26,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:09:26,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:09:26,376 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-02 21:09:26,376 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-02 21:09:26,567 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:09:26,569 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:09:28,336 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:09:28,347 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:09:28,347 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 21:09:28,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:09:28 BoogieIcfgContainer [2022-11-02 21:09:28,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:09:28,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:09:28,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:09:28,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:09:28,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:09:25" (1/3) ... [2022-11-02 21:09:28,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac6917f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:09:28, skipping insertion in model container [2022-11-02 21:09:28,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:26" (2/3) ... [2022-11-02 21:09:28,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac6917f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:09:28, skipping insertion in model container [2022-11-02 21:09:28,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:09:28" (3/3) ... [2022-11-02 21:09:28,363 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.safe_analog_estimation_convergence.c [2022-11-02 21:09:28,383 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:09:28,383 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 21:09:28,474 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:09:28,483 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;@41554a6a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:09:28,483 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 21:09:28,487 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 43 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:09:28,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 21:09:28,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:09:28,500 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:28,501 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:09:28,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:28,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1047248489, now seen corresponding path program 1 times [2022-11-02 21:09:28,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:28,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75640222] [2022-11-02 21:09:28,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:28,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:29,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:09:29,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:29,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-02 21:09:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:29,101 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-02 21:09:29,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:29,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75640222] [2022-11-02 21:09:29,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75640222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:29,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:29,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:29,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411926264] [2022-11-02 21:09:29,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:29,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 21:09:29,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:29,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 21:09:29,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 21:09:29,153 INFO L87 Difference]: Start difference. First operand has 47 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 43 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:09:29,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:09:29,185 INFO L93 Difference]: Finished difference Result 88 states and 127 transitions. [2022-11-02 21:09:29,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 21:09:29,188 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2022-11-02 21:09:29,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:09:29,195 INFO L225 Difference]: With dead ends: 88 [2022-11-02 21:09:29,196 INFO L226 Difference]: Without dead ends: 43 [2022-11-02 21:09:29,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 21:09:29,203 INFO L413 NwaCegarLoop]: 58 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, 58 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 [2022-11-02 21:09:29,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:09:29,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-02 21:09:29,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-11-02 21:09:29,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 39 states have internal predecessors, (54), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:09:29,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 58 transitions. [2022-11-02 21:09:29,252 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 58 transitions. Word has length 23 [2022-11-02 21:09:29,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:09:29,253 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 58 transitions. [2022-11-02 21:09:29,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:09:29,254 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2022-11-02 21:09:29,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 21:09:29,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:09:29,256 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:29,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:09:29,258 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:09:29,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:29,258 INFO L85 PathProgramCache]: Analyzing trace with hash -688730779, now seen corresponding path program 1 times [2022-11-02 21:09:29,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:29,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145534177] [2022-11-02 21:09:29,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:29,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:09:32,454 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:09:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:09:34,645 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:09:34,646 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 21:09:34,648 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 21:09:34,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:09:34,656 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-02 21:09:34,661 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 21:09:34,768 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 21:09:34,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:09:34 BoogieIcfgContainer [2022-11-02 21:09:34,805 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 21:09:34,807 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 21:09:34,807 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 21:09:34,808 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 21:09:34,808 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:09:28" (3/4) ... [2022-11-02 21:09:34,812 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 21:09:34,812 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 21:09:34,814 INFO L158 Benchmark]: Toolchain (without parser) took 9402.60ms. Allocated memory was 98.6MB in the beginning and 417.3MB in the end (delta: 318.8MB). Free memory was 66.2MB in the beginning and 365.5MB in the end (delta: -299.2MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2022-11-02 21:09:34,814 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 98.6MB. Free memory is still 54.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:09:34,816 INFO L158 Benchmark]: CACSL2BoogieTranslator took 654.17ms. Allocated memory is still 98.6MB. Free memory was 66.0MB in the beginning and 62.3MB in the end (delta: 3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 21:09:34,821 INFO L158 Benchmark]: Boogie Procedure Inliner took 120.52ms. Allocated memory is still 98.6MB. Free memory was 62.3MB in the beginning and 54.0MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 21:09:34,821 INFO L158 Benchmark]: Boogie Preprocessor took 66.19ms. Allocated memory is still 98.6MB. Free memory was 54.0MB in the beginning and 49.1MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 21:09:34,822 INFO L158 Benchmark]: RCFGBuilder took 2092.86ms. Allocated memory was 98.6MB in the beginning and 188.7MB in the end (delta: 90.2MB). Free memory was 49.1MB in the beginning and 76.1MB in the end (delta: -27.1MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. [2022-11-02 21:09:34,822 INFO L158 Benchmark]: TraceAbstraction took 6452.57ms. Allocated memory was 188.7MB in the beginning and 417.3MB in the end (delta: 228.6MB). Free memory was 75.1MB in the beginning and 366.5MB in the end (delta: -291.4MB). Peak memory consumption was 89.2MB. Max. memory is 16.1GB. [2022-11-02 21:09:34,823 INFO L158 Benchmark]: Witness Printer took 5.02ms. Allocated memory is still 417.3MB. Free memory is still 365.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:09:34,831 INFO L339 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 98.6MB. Free memory is still 54.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 654.17ms. Allocated memory is still 98.6MB. Free memory was 66.0MB in the beginning and 62.3MB in the end (delta: 3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 120.52ms. Allocated memory is still 98.6MB. Free memory was 62.3MB in the beginning and 54.0MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.19ms. Allocated memory is still 98.6MB. Free memory was 54.0MB in the beginning and 49.1MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2092.86ms. Allocated memory was 98.6MB in the beginning and 188.7MB in the end (delta: 90.2MB). Free memory was 49.1MB in the beginning and 76.1MB in the end (delta: -27.1MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. * TraceAbstraction took 6452.57ms. Allocated memory was 188.7MB in the beginning and 417.3MB in the end (delta: 228.6MB). Free memory was 75.1MB in the beginning and 366.5MB in the end (delta: -291.4MB). Peak memory consumption was 89.2MB. Max. memory is 16.1GB. * Witness Printer took 5.02ms. Allocated memory is still 417.3MB. Free memory is still 365.5MB. 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: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 180, overapproximation of bitwiseAnd at line 305, overapproximation of bitwiseComplement at line 300, overapproximation of bitwiseXOr at line 292. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 31); [L29] const SORT_9 msb_SORT_9 = (SORT_9)1 << (31 - 1); [L31] const SORT_11 mask_SORT_11 = (SORT_11)-1 >> (sizeof(SORT_11) * 8 - 16); [L32] const SORT_11 msb_SORT_11 = (SORT_11)1 << (16 - 1); [L34] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 8); [L35] const SORT_12 msb_SORT_12 = (SORT_12)1 << (8 - 1); [L37] const SORT_20 mask_SORT_20 = (SORT_20)-1 >> (sizeof(SORT_20) * 8 - 32); [L38] const SORT_20 msb_SORT_20 = (SORT_20)1 << (32 - 1); [L40] const SORT_23 mask_SORT_23 = (SORT_23)-1 >> (sizeof(SORT_23) * 8 - 17); [L41] const SORT_23 msb_SORT_23 = (SORT_23)1 << (17 - 1); [L43] const SORT_26 mask_SORT_26 = (SORT_26)-1 >> (sizeof(SORT_26) * 8 - 18); [L44] const SORT_26 msb_SORT_26 = (SORT_26)1 << (18 - 1); [L46] const SORT_29 mask_SORT_29 = (SORT_29)-1 >> (sizeof(SORT_29) * 8 - 19); [L47] const SORT_29 msb_SORT_29 = (SORT_29)1 << (19 - 1); [L49] const SORT_32 mask_SORT_32 = (SORT_32)-1 >> (sizeof(SORT_32) * 8 - 20); [L50] const SORT_32 msb_SORT_32 = (SORT_32)1 << (20 - 1); [L52] const SORT_35 mask_SORT_35 = (SORT_35)-1 >> (sizeof(SORT_35) * 8 - 21); [L53] const SORT_35 msb_SORT_35 = (SORT_35)1 << (21 - 1); [L55] const SORT_38 mask_SORT_38 = (SORT_38)-1 >> (sizeof(SORT_38) * 8 - 22); [L56] const SORT_38 msb_SORT_38 = (SORT_38)1 << (22 - 1); [L58] const SORT_41 mask_SORT_41 = (SORT_41)-1 >> (sizeof(SORT_41) * 8 - 23); [L59] const SORT_41 msb_SORT_41 = (SORT_41)1 << (23 - 1); [L61] const SORT_44 mask_SORT_44 = (SORT_44)-1 >> (sizeof(SORT_44) * 8 - 24); [L62] const SORT_44 msb_SORT_44 = (SORT_44)1 << (24 - 1); [L64] const SORT_47 mask_SORT_47 = (SORT_47)-1 >> (sizeof(SORT_47) * 8 - 25); [L65] const SORT_47 msb_SORT_47 = (SORT_47)1 << (25 - 1); [L67] const SORT_50 mask_SORT_50 = (SORT_50)-1 >> (sizeof(SORT_50) * 8 - 26); [L68] const SORT_50 msb_SORT_50 = (SORT_50)1 << (26 - 1); [L70] const SORT_53 mask_SORT_53 = (SORT_53)-1 >> (sizeof(SORT_53) * 8 - 27); [L71] const SORT_53 msb_SORT_53 = (SORT_53)1 << (27 - 1); [L73] const SORT_56 mask_SORT_56 = (SORT_56)-1 >> (sizeof(SORT_56) * 8 - 28); [L74] const SORT_56 msb_SORT_56 = (SORT_56)1 << (28 - 1); [L76] const SORT_59 mask_SORT_59 = (SORT_59)-1 >> (sizeof(SORT_59) * 8 - 29); [L77] const SORT_59 msb_SORT_59 = (SORT_59)1 << (29 - 1); [L79] const SORT_62 mask_SORT_62 = (SORT_62)-1 >> (sizeof(SORT_62) * 8 - 30); [L80] const SORT_62 msb_SORT_62 = (SORT_62)1 << (30 - 1); [L82] const SORT_72 mask_SORT_72 = (SORT_72)-1 >> (sizeof(SORT_72) * 8 - 3); [L83] const SORT_72 msb_SORT_72 = (SORT_72)1 << (3 - 1); [L85] const SORT_96 mask_SORT_96 = (SORT_96)-1 >> (sizeof(SORT_96) * 8 - 4); [L86] const SORT_96 msb_SORT_96 = (SORT_96)1 << (4 - 1); [L88] const SORT_101 mask_SORT_101 = (SORT_101)-1 >> (sizeof(SORT_101) * 8 - 14); [L89] const SORT_101 msb_SORT_101 = (SORT_101)1 << (14 - 1); [L91] const SORT_105 mask_SORT_105 = (SORT_105)-1 >> (sizeof(SORT_105) * 8 - 2); [L92] const SORT_105 msb_SORT_105 = (SORT_105)1 << (2 - 1); [L94] const SORT_154 mask_SORT_154 = (SORT_154)-1 >> (sizeof(SORT_154) * 8 - 7); [L95] const SORT_154 msb_SORT_154 = (SORT_154)1 << (7 - 1); [L97] const SORT_1 var_7 = 0; [L98] const SORT_1 var_8 = 1; [L99] const SORT_9 var_10 = 0; [L100] const SORT_12 var_13 = 0; [L101] const SORT_12 var_14 = 200; [L102] const SORT_72 var_73 = 5; [L103] const SORT_11 var_75 = 0; [L104] const SORT_105 var_106 = 1; [L105] const SORT_12 var_112 = 127; [L106] const SORT_11 var_119 = 64; [L107] const SORT_11 var_121 = 1; [L108] const SORT_11 var_123 = 127; [L109] const SORT_11 var_126 = 200; [L110] const SORT_72 var_131 = 4; [L111] const SORT_72 var_134 = 6; [L112] const SORT_96 var_138 = 9; [L113] const SORT_154 var_155 = 64; [L114] const SORT_72 var_166 = 0; [L115] const SORT_96 var_169 = 0; [L117] SORT_1 input_2; [L118] SORT_1 input_3; [L119] SORT_1 input_4; [L121] SORT_1 state_5 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L122] SORT_11 state_17 = __VERIFIER_nondet_ushort() & mask_SORT_11; [L123] SORT_11 state_76 = __VERIFIER_nondet_ushort() & mask_SORT_11; [L124] SORT_96 state_97 = __VERIFIER_nondet_uchar() & mask_SORT_96; [L125] SORT_96 state_100 = __VERIFIER_nondet_uchar() & mask_SORT_96; [L127] SORT_11 init_77_arg_1 = var_75; [L128] state_76 = init_77_arg_1 VAL [init_77_arg_1=0, mask_SORT_1=1, mask_SORT_101=16383, mask_SORT_105=3, mask_SORT_11=65535, mask_SORT_12=255, mask_SORT_154=127, mask_SORT_20=4294967295, mask_SORT_23=4294967295, mask_SORT_26=4294967295, mask_SORT_29=4294967295, mask_SORT_32=4294967295, mask_SORT_35=4294967295, mask_SORT_38=4294967295, mask_SORT_41=4294967295, mask_SORT_44=4294967295, mask_SORT_47=4294967295, mask_SORT_50=4294967295, mask_SORT_53=4294967295, mask_SORT_56=4294967295, mask_SORT_59=4294967295, mask_SORT_62=4294967295, mask_SORT_72=7, mask_SORT_9=4294967295, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_101=8192, msb_SORT_105=2, msb_SORT_11=32768, msb_SORT_12=128, msb_SORT_154=64, msb_SORT_20=2147483648, msb_SORT_23=65536, msb_SORT_26=131072, msb_SORT_29=262144, msb_SORT_32=524288, msb_SORT_35=1048576, msb_SORT_38=2097152, msb_SORT_41=4194304, msb_SORT_44=8388608, msb_SORT_47=16777216, msb_SORT_50=33554432, msb_SORT_53=67108864, msb_SORT_56=134217728, msb_SORT_59=268435456, msb_SORT_62=536870912, msb_SORT_72=4, msb_SORT_9=1073741824, msb_SORT_96=8, state_100=0, state_17=65533, state_5=1, state_76=0, state_97=1, var_10=0, var_106=1, var_112=127, var_119=64, var_121=1, var_123=127, var_126=200, var_13=0, var_131=4, var_134=6, var_138=9, var_14=200, var_155=64, var_166=0, var_169=0, var_7=0, var_73=5, var_75=0, var_8=1] [L131] input_2 = __VERIFIER_nondet_uchar() [L132] input_3 = __VERIFIER_nondet_uchar() [L133] input_3 = input_3 & mask_SORT_1 [L134] input_4 = __VERIFIER_nondet_uchar() [L135] input_4 = input_4 & mask_SORT_1 [L137] SORT_1 var_84_arg_0 = state_5; [L138] SORT_1 var_84 = ~var_84_arg_0; [L139] SORT_1 var_85_arg_0 = var_84; [L140] SORT_1 var_85 = ~var_85_arg_0; [L141] SORT_1 var_86_arg_0 = state_5; [L142] SORT_1 var_86_arg_1 = var_85; [L143] SORT_1 var_86 = var_86_arg_0 | var_86_arg_1; [L144] var_86 = var_86 & mask_SORT_1 [L145] SORT_1 constr_87_arg_0 = var_86; VAL [constr_87_arg_0=1, init_77_arg_1=0, input_2=3, input_3=1, input_4=1, mask_SORT_1=1, mask_SORT_101=16383, mask_SORT_105=3, mask_SORT_11=65535, mask_SORT_12=255, mask_SORT_154=127, mask_SORT_20=4294967295, mask_SORT_23=4294967295, mask_SORT_26=4294967295, mask_SORT_29=4294967295, mask_SORT_32=4294967295, mask_SORT_35=4294967295, mask_SORT_38=4294967295, mask_SORT_41=4294967295, mask_SORT_44=4294967295, mask_SORT_47=4294967295, mask_SORT_50=4294967295, mask_SORT_53=4294967295, mask_SORT_56=4294967295, mask_SORT_59=4294967295, mask_SORT_62=4294967295, mask_SORT_72=7, mask_SORT_9=4294967295, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_101=8192, msb_SORT_105=2, msb_SORT_11=32768, msb_SORT_12=128, msb_SORT_154=64, msb_SORT_20=2147483648, msb_SORT_23=65536, msb_SORT_26=131072, msb_SORT_29=262144, msb_SORT_32=524288, msb_SORT_35=1048576, msb_SORT_38=2097152, msb_SORT_41=4194304, msb_SORT_44=8388608, msb_SORT_47=16777216, msb_SORT_50=33554432, msb_SORT_53=67108864, msb_SORT_56=134217728, msb_SORT_59=268435456, msb_SORT_62=536870912, msb_SORT_72=4, msb_SORT_9=1073741824, msb_SORT_96=8, state_100=0, state_17=65533, state_5=1, state_76=0, state_97=1, var_10=0, var_106=1, var_112=127, var_119=64, var_121=1, var_123=127, var_126=200, var_13=0, var_131=4, var_134=6, var_138=9, var_14=200, var_155=64, var_166=0, var_169=0, var_7=0, var_73=5, var_75=0, var_8=1, var_84=5, var_84_arg_0=1, var_85=0, var_85_arg_0=5, var_86=1, var_86_arg_0=1, var_86_arg_1=0] [L146] CALL assume_abort_if_not(constr_87_arg_0) VAL [\old(cond)=1] [L21] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L146] RET assume_abort_if_not(constr_87_arg_0) VAL [constr_87_arg_0=1, init_77_arg_1=0, input_2=3, input_3=1, input_4=1, mask_SORT_1=1, mask_SORT_101=16383, mask_SORT_105=3, mask_SORT_11=65535, mask_SORT_12=255, mask_SORT_154=127, mask_SORT_20=4294967295, mask_SORT_23=4294967295, mask_SORT_26=4294967295, mask_SORT_29=4294967295, mask_SORT_32=4294967295, mask_SORT_35=4294967295, mask_SORT_38=4294967295, mask_SORT_41=4294967295, mask_SORT_44=4294967295, mask_SORT_47=4294967295, mask_SORT_50=4294967295, mask_SORT_53=4294967295, mask_SORT_56=4294967295, mask_SORT_59=4294967295, mask_SORT_62=4294967295, mask_SORT_72=7, mask_SORT_9=4294967295, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_101=8192, msb_SORT_105=2, msb_SORT_11=32768, msb_SORT_12=128, msb_SORT_154=64, msb_SORT_20=2147483648, msb_SORT_23=65536, msb_SORT_26=131072, msb_SORT_29=262144, msb_SORT_32=524288, msb_SORT_35=1048576, msb_SORT_38=2097152, msb_SORT_41=4194304, msb_SORT_44=8388608, msb_SORT_47=16777216, msb_SORT_50=33554432, msb_SORT_53=67108864, msb_SORT_56=134217728, msb_SORT_59=268435456, msb_SORT_62=536870912, msb_SORT_72=4, msb_SORT_9=1073741824, msb_SORT_96=8, state_100=0, state_17=65533, state_5=1, state_76=0, state_97=1, var_10=0, var_106=1, var_112=127, var_119=64, var_121=1, var_123=127, var_126=200, var_13=0, var_131=4, var_134=6, var_138=9, var_14=200, var_155=64, var_166=0, var_169=0, var_7=0, var_73=5, var_75=0, var_8=1, var_84=5, var_84_arg_0=1, var_85=0, var_85_arg_0=5, var_86=1, var_86_arg_0=1, var_86_arg_1=0] [L147] SORT_1 var_88_arg_0 = var_8; [L148] var_88_arg_0 = var_88_arg_0 & mask_SORT_1 [L149] SORT_11 var_88 = var_88_arg_0; [L150] SORT_11 var_89_arg_0 = state_76; [L151] SORT_11 var_89_arg_1 = var_88; [L152] SORT_1 var_89 = var_89_arg_0 <= var_89_arg_1; [L153] SORT_1 var_90_arg_0 = input_4; [L154] SORT_1 var_90_arg_1 = var_89; [L155] SORT_1 var_90 = var_90_arg_0 ^ var_90_arg_1; [L156] SORT_1 var_91_arg_0 = var_90; [L157] SORT_1 var_91 = ~var_91_arg_0; [L158] SORT_1 var_92_arg_0 = var_90; [L159] SORT_1 var_92 = ~var_92_arg_0; [L160] SORT_1 var_93_arg_0 = var_91; [L161] SORT_1 var_93_arg_1 = var_92; [L162] SORT_1 var_93 = var_93_arg_0 | var_93_arg_1; [L163] var_93 = var_93 & mask_SORT_1 [L164] SORT_1 constr_94_arg_0 = var_93; VAL [constr_87_arg_0=1, constr_94_arg_0=1, init_77_arg_1=0, input_2=3, input_3=1, input_4=1, mask_SORT_1=1, mask_SORT_101=16383, mask_SORT_105=3, mask_SORT_11=65535, mask_SORT_12=255, mask_SORT_154=127, mask_SORT_20=4294967295, mask_SORT_23=4294967295, mask_SORT_26=4294967295, mask_SORT_29=4294967295, mask_SORT_32=4294967295, mask_SORT_35=4294967295, mask_SORT_38=4294967295, mask_SORT_41=4294967295, mask_SORT_44=4294967295, mask_SORT_47=4294967295, mask_SORT_50=4294967295, mask_SORT_53=4294967295, mask_SORT_56=4294967295, mask_SORT_59=4294967295, mask_SORT_62=4294967295, mask_SORT_72=7, mask_SORT_9=4294967295, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_101=8192, msb_SORT_105=2, msb_SORT_11=32768, msb_SORT_12=128, msb_SORT_154=64, msb_SORT_20=2147483648, msb_SORT_23=65536, msb_SORT_26=131072, msb_SORT_29=262144, msb_SORT_32=524288, msb_SORT_35=1048576, msb_SORT_38=2097152, msb_SORT_41=4194304, msb_SORT_44=8388608, msb_SORT_47=16777216, msb_SORT_50=33554432, msb_SORT_53=67108864, msb_SORT_56=134217728, msb_SORT_59=268435456, msb_SORT_62=536870912, msb_SORT_72=4, msb_SORT_9=1073741824, msb_SORT_96=8, state_100=0, state_17=65533, state_5=1, state_76=0, state_97=1, var_10=0, var_106=1, var_112=127, var_119=64, var_121=1, var_123=127, var_126=200, var_13=0, var_131=4, var_134=6, var_138=9, var_14=200, var_155=64, var_166=0, var_169=0, var_7=0, var_73=5, var_75=0, var_8=1, var_84=5, var_84_arg_0=1, var_85=0, var_85_arg_0=5, var_86=1, var_86_arg_0=1, var_86_arg_1=0, var_88=1, var_88_arg_0=1, var_89=1, var_89_arg_0=0, var_89_arg_1=1, var_90=0, var_90_arg_0=1, var_90_arg_1=1, var_91=0, var_91_arg_0=0, var_92=2, var_92_arg_0=0, var_93=1, var_93_arg_0=0, var_93_arg_1=2] [L165] CALL assume_abort_if_not(constr_94_arg_0) VAL [\old(cond)=1] [L21] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L165] RET assume_abort_if_not(constr_94_arg_0) VAL [constr_87_arg_0=1, constr_94_arg_0=1, init_77_arg_1=0, input_2=3, input_3=1, input_4=1, mask_SORT_1=1, mask_SORT_101=16383, mask_SORT_105=3, mask_SORT_11=65535, mask_SORT_12=255, mask_SORT_154=127, mask_SORT_20=4294967295, mask_SORT_23=4294967295, mask_SORT_26=4294967295, mask_SORT_29=4294967295, mask_SORT_32=4294967295, mask_SORT_35=4294967295, mask_SORT_38=4294967295, mask_SORT_41=4294967295, mask_SORT_44=4294967295, mask_SORT_47=4294967295, mask_SORT_50=4294967295, mask_SORT_53=4294967295, mask_SORT_56=4294967295, mask_SORT_59=4294967295, mask_SORT_62=4294967295, mask_SORT_72=7, mask_SORT_9=4294967295, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_101=8192, msb_SORT_105=2, msb_SORT_11=32768, msb_SORT_12=128, msb_SORT_154=64, msb_SORT_20=2147483648, msb_SORT_23=65536, msb_SORT_26=131072, msb_SORT_29=262144, msb_SORT_32=524288, msb_SORT_35=1048576, msb_SORT_38=2097152, msb_SORT_41=4194304, msb_SORT_44=8388608, msb_SORT_47=16777216, msb_SORT_50=33554432, msb_SORT_53=67108864, msb_SORT_56=134217728, msb_SORT_59=268435456, msb_SORT_62=536870912, msb_SORT_72=4, msb_SORT_9=1073741824, msb_SORT_96=8, state_100=0, state_17=65533, state_5=1, state_76=0, state_97=1, var_10=0, var_106=1, var_112=127, var_119=64, var_121=1, var_123=127, var_126=200, var_13=0, var_131=4, var_134=6, var_138=9, var_14=200, var_155=64, var_166=0, var_169=0, var_7=0, var_73=5, var_75=0, var_8=1, var_84=5, var_84_arg_0=1, var_85=0, var_85_arg_0=5, var_86=1, var_86_arg_0=1, var_86_arg_1=0, var_88=1, var_88_arg_0=1, var_89=1, var_89_arg_0=0, var_89_arg_1=1, var_90=0, var_90_arg_0=1, var_90_arg_1=1, var_91=0, var_91_arg_0=0, var_92=2, var_92_arg_0=0, var_93=1, var_93_arg_0=0, var_93_arg_1=2] [L167] SORT_72 var_74_arg_0 = var_73; [L168] var_74_arg_0 = var_74_arg_0 & mask_SORT_72 [L169] SORT_11 var_74 = var_74_arg_0; [L170] SORT_11 var_78_arg_0 = var_74; [L171] SORT_11 var_78_arg_1 = state_76; [L172] SORT_1 var_78 = var_78_arg_0 < var_78_arg_1; [L173] SORT_1 var_15_arg_0 = input_3; [L174] SORT_12 var_15_arg_1 = var_14; [L175] SORT_12 var_15_arg_2 = var_13; VAL [constr_87_arg_0=1, constr_94_arg_0=1, init_77_arg_1=0, input_2=3, input_3=1, input_4=1, mask_SORT_1=1, mask_SORT_101=16383, mask_SORT_105=3, mask_SORT_11=65535, mask_SORT_12=255, mask_SORT_154=127, mask_SORT_20=4294967295, mask_SORT_23=4294967295, mask_SORT_26=4294967295, mask_SORT_29=4294967295, mask_SORT_32=4294967295, mask_SORT_35=4294967295, mask_SORT_38=4294967295, mask_SORT_41=4294967295, mask_SORT_44=4294967295, mask_SORT_47=4294967295, mask_SORT_50=4294967295, mask_SORT_53=4294967295, mask_SORT_56=4294967295, mask_SORT_59=4294967295, mask_SORT_62=4294967295, mask_SORT_72=7, mask_SORT_9=4294967295, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_101=8192, msb_SORT_105=2, msb_SORT_11=32768, msb_SORT_12=128, msb_SORT_154=64, msb_SORT_20=2147483648, msb_SORT_23=65536, msb_SORT_26=131072, msb_SORT_29=262144, msb_SORT_32=524288, msb_SORT_35=1048576, msb_SORT_38=2097152, msb_SORT_41=4194304, msb_SORT_44=8388608, msb_SORT_47=16777216, msb_SORT_50=33554432, msb_SORT_53=67108864, msb_SORT_56=134217728, msb_SORT_59=268435456, msb_SORT_62=536870912, msb_SORT_72=4, msb_SORT_9=1073741824, msb_SORT_96=8, state_100=0, state_17=65533, state_5=1, state_76=0, state_97=1, var_10=0, var_106=1, var_112=127, var_119=64, var_121=1, var_123=127, var_126=200, var_13=0, var_131=4, var_134=6, var_138=9, var_14=200, var_155=64, var_15_arg_0=1, var_15_arg_1=200, var_15_arg_2=0, var_166=0, var_169=0, var_7=0, var_73=5, var_74=0, var_74_arg_0=0, var_75=0, var_78=0, var_78_arg_0=0, var_78_arg_1=0, var_8=1, var_84=5, var_84_arg_0=1, var_85=0, var_85_arg_0=5, var_86=1, var_86_arg_0=1, var_86_arg_1=0, var_88=1, var_88_arg_0=1, var_89=1, var_89_arg_0=0, var_89_arg_1=1, var_90=0, var_90_arg_0=1, var_90_arg_1=1, var_91=0, var_91_arg_0=0, var_92=2, var_92_arg_0=0, var_93=1, var_93_arg_0=0, var_93_arg_1=2] [L176] EXPR var_15_arg_0 ? var_15_arg_1 : var_15_arg_2 VAL [constr_87_arg_0=1, constr_94_arg_0=1, init_77_arg_1=0, input_2=3, input_3=1, input_4=1, mask_SORT_1=1, mask_SORT_101=16383, mask_SORT_105=3, mask_SORT_11=65535, mask_SORT_12=255, mask_SORT_154=127, mask_SORT_20=4294967295, mask_SORT_23=4294967295, mask_SORT_26=4294967295, mask_SORT_29=4294967295, mask_SORT_32=4294967295, mask_SORT_35=4294967295, mask_SORT_38=4294967295, mask_SORT_41=4294967295, mask_SORT_44=4294967295, mask_SORT_47=4294967295, mask_SORT_50=4294967295, mask_SORT_53=4294967295, mask_SORT_56=4294967295, mask_SORT_59=4294967295, mask_SORT_62=4294967295, mask_SORT_72=7, mask_SORT_9=4294967295, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_101=8192, msb_SORT_105=2, msb_SORT_11=32768, msb_SORT_12=128, msb_SORT_154=64, msb_SORT_20=2147483648, msb_SORT_23=65536, msb_SORT_26=131072, msb_SORT_29=262144, msb_SORT_32=524288, msb_SORT_35=1048576, msb_SORT_38=2097152, msb_SORT_41=4194304, msb_SORT_44=8388608, msb_SORT_47=16777216, msb_SORT_50=33554432, msb_SORT_53=67108864, msb_SORT_56=134217728, msb_SORT_59=268435456, msb_SORT_62=536870912, msb_SORT_72=4, msb_SORT_9=1073741824, msb_SORT_96=8, state_100=0, state_17=65533, state_5=1, state_76=0, state_97=1, var_10=0, var_106=1, var_112=127, var_119=64, var_121=1, var_123=127, var_126=200, var_13=0, var_131=4, var_134=6, var_138=9, var_14=200, var_155=64, var_15_arg_0=1, var_15_arg_0 ? var_15_arg_1 : var_15_arg_2=200, var_15_arg_1=200, var_15_arg_2=0, var_166=0, var_169=0, var_7=0, var_73=5, var_74=0, var_74_arg_0=0, var_75=0, var_78=0, var_78_arg_0=0, var_78_arg_1=0, var_8=1, var_84=5, var_84_arg_0=1, var_85=0, var_85_arg_0=5, var_86=1, var_86_arg_0=1, var_86_arg_1=0, var_88=1, var_88_arg_0=1, var_89=1, var_89_arg_0=0, var_89_arg_1=1, var_90=0, var_90_arg_0=1, var_90_arg_1=1, var_91=0, var_91_arg_0=0, var_92=2, var_92_arg_0=0, var_93=1, var_93_arg_0=0, var_93_arg_1=2] [L176] SORT_12 var_15 = var_15_arg_0 ? var_15_arg_1 : var_15_arg_2; [L177] var_15 = var_15 & mask_SORT_12 [L178] SORT_12 var_16_arg_0 = var_13; [L179] SORT_12 var_16_arg_1 = var_15; [L180] SORT_11 var_16 = ((SORT_11)var_16_arg_0 << 8) | var_16_arg_1; [L181] SORT_11 var_18_arg_0 = var_16; [L182] SORT_11 var_18_arg_1 = state_17; [L183] SORT_11 var_18 = var_18_arg_0 - var_18_arg_1; [L184] var_18 = var_18 & mask_SORT_11 [L185] SORT_11 var_19_arg_0 = var_18; [L186] SORT_1 var_19 = var_19_arg_0 >> 15; [L187] SORT_1 var_21_arg_0 = var_19; [L188] SORT_9 var_21_arg_1 = var_10; [L189] SORT_20 var_21 = ((SORT_20)var_21_arg_0 << 31) | var_21_arg_1; [L190] var_21 = var_21 & mask_SORT_20 [L191] SORT_11 var_64_arg_0 = var_18; [L192] SORT_1 var_64 = var_64_arg_0 >> 15; [L193] SORT_11 var_61_arg_0 = var_18; [L194] SORT_1 var_61 = var_61_arg_0 >> 15; [L195] SORT_11 var_58_arg_0 = var_18; [L196] SORT_1 var_58 = var_58_arg_0 >> 15; [L197] SORT_11 var_55_arg_0 = var_18; [L198] SORT_1 var_55 = var_55_arg_0 >> 15; [L199] SORT_11 var_52_arg_0 = var_18; [L200] SORT_1 var_52 = var_52_arg_0 >> 15; [L201] SORT_11 var_49_arg_0 = var_18; [L202] SORT_1 var_49 = var_49_arg_0 >> 15; [L203] SORT_11 var_46_arg_0 = var_18; [L204] SORT_1 var_46 = var_46_arg_0 >> 15; [L205] SORT_11 var_43_arg_0 = var_18; [L206] SORT_1 var_43 = var_43_arg_0 >> 15; [L207] SORT_11 var_40_arg_0 = var_18; [L208] SORT_1 var_40 = var_40_arg_0 >> 15; [L209] SORT_11 var_37_arg_0 = var_18; [L210] SORT_1 var_37 = var_37_arg_0 >> 15; [L211] SORT_11 var_34_arg_0 = var_18; [L212] SORT_1 var_34 = var_34_arg_0 >> 15; [L213] SORT_11 var_31_arg_0 = var_18; [L214] SORT_1 var_31 = var_31_arg_0 >> 15; [L215] SORT_11 var_28_arg_0 = var_18; [L216] SORT_1 var_28 = var_28_arg_0 >> 15; [L217] SORT_11 var_25_arg_0 = var_18; [L218] SORT_1 var_25 = var_25_arg_0 >> 15; [L219] SORT_11 var_22_arg_0 = var_18; [L220] SORT_1 var_22 = var_22_arg_0 >> 15; [L221] SORT_1 var_24_arg_0 = var_22; [L222] SORT_11 var_24_arg_1 = var_18; [L223] SORT_23 var_24 = ((SORT_23)var_24_arg_0 << 16) | var_24_arg_1; [L224] var_24 = var_24 & mask_SORT_23 [L225] SORT_1 var_27_arg_0 = var_25; [L226] SORT_23 var_27_arg_1 = var_24; [L227] SORT_26 var_27 = ((SORT_26)var_27_arg_0 << 17) | var_27_arg_1; [L228] var_27 = var_27 & mask_SORT_26 [L229] SORT_1 var_30_arg_0 = var_28; [L230] SORT_26 var_30_arg_1 = var_27; [L231] SORT_29 var_30 = ((SORT_29)var_30_arg_0 << 18) | var_30_arg_1; [L232] var_30 = var_30 & mask_SORT_29 [L233] SORT_1 var_33_arg_0 = var_31; [L234] SORT_29 var_33_arg_1 = var_30; [L235] SORT_32 var_33 = ((SORT_32)var_33_arg_0 << 19) | var_33_arg_1; [L236] var_33 = var_33 & mask_SORT_32 [L237] SORT_1 var_36_arg_0 = var_34; [L238] SORT_32 var_36_arg_1 = var_33; [L239] SORT_35 var_36 = ((SORT_35)var_36_arg_0 << 20) | var_36_arg_1; [L240] var_36 = var_36 & mask_SORT_35 [L241] SORT_1 var_39_arg_0 = var_37; [L242] SORT_35 var_39_arg_1 = var_36; [L243] SORT_38 var_39 = ((SORT_38)var_39_arg_0 << 21) | var_39_arg_1; [L244] var_39 = var_39 & mask_SORT_38 [L245] SORT_1 var_42_arg_0 = var_40; [L246] SORT_38 var_42_arg_1 = var_39; [L247] SORT_41 var_42 = ((SORT_41)var_42_arg_0 << 22) | var_42_arg_1; [L248] var_42 = var_42 & mask_SORT_41 [L249] SORT_1 var_45_arg_0 = var_43; [L250] SORT_41 var_45_arg_1 = var_42; [L251] SORT_44 var_45 = ((SORT_44)var_45_arg_0 << 23) | var_45_arg_1; [L252] var_45 = var_45 & mask_SORT_44 [L253] SORT_1 var_48_arg_0 = var_46; [L254] SORT_44 var_48_arg_1 = var_45; [L255] SORT_47 var_48 = ((SORT_47)var_48_arg_0 << 24) | var_48_arg_1; [L256] var_48 = var_48 & mask_SORT_47 [L257] SORT_1 var_51_arg_0 = var_49; [L258] SORT_47 var_51_arg_1 = var_48; [L259] SORT_50 var_51 = ((SORT_50)var_51_arg_0 << 25) | var_51_arg_1; [L260] var_51 = var_51 & mask_SORT_50 [L261] SORT_1 var_54_arg_0 = var_52; [L262] SORT_50 var_54_arg_1 = var_51; [L263] SORT_53 var_54 = ((SORT_53)var_54_arg_0 << 26) | var_54_arg_1; [L264] var_54 = var_54 & mask_SORT_53 [L265] SORT_1 var_57_arg_0 = var_55; [L266] SORT_53 var_57_arg_1 = var_54; [L267] SORT_56 var_57 = ((SORT_56)var_57_arg_0 << 27) | var_57_arg_1; [L268] var_57 = var_57 & mask_SORT_56 [L269] SORT_1 var_60_arg_0 = var_58; [L270] SORT_56 var_60_arg_1 = var_57; [L271] SORT_59 var_60 = ((SORT_59)var_60_arg_0 << 28) | var_60_arg_1; [L272] var_60 = var_60 & mask_SORT_59 [L273] SORT_1 var_63_arg_0 = var_61; [L274] SORT_59 var_63_arg_1 = var_60; [L275] SORT_62 var_63 = ((SORT_62)var_63_arg_0 << 29) | var_63_arg_1; [L276] var_63 = var_63 & mask_SORT_62 [L277] SORT_1 var_65_arg_0 = var_64; [L278] SORT_62 var_65_arg_1 = var_63; [L279] SORT_9 var_65 = ((SORT_9)var_65_arg_0 << 30) | var_65_arg_1; [L280] SORT_9 var_66_arg_0 = var_65; [L281] var_66_arg_0 = var_66_arg_0 & mask_SORT_9 [L282] SORT_20 var_66 = var_66_arg_0; [L283] SORT_20 var_67_arg_0 = var_21; [L284] SORT_20 var_67_arg_1 = var_66; [L285] SORT_1 var_67 = var_67_arg_0 <= var_67_arg_1; [L286] SORT_1 var_68_arg_0 = var_67; [L287] SORT_1 var_68_arg_1 = var_8; [L288] SORT_1 var_68_arg_2 = var_7; VAL [constr_87_arg_0=1, constr_94_arg_0=1, init_77_arg_1=0, input_2=3, input_3=1, input_4=1, mask_SORT_1=1, mask_SORT_101=16383, mask_SORT_105=3, mask_SORT_11=65535, mask_SORT_12=255, mask_SORT_154=127, mask_SORT_20=4294967295, mask_SORT_23=4294967295, mask_SORT_26=4294967295, mask_SORT_29=4294967295, mask_SORT_32=4294967295, mask_SORT_35=4294967295, mask_SORT_38=4294967295, mask_SORT_41=4294967295, mask_SORT_44=4294967295, mask_SORT_47=4294967295, mask_SORT_50=4294967295, mask_SORT_53=4294967295, mask_SORT_56=4294967295, mask_SORT_59=4294967295, mask_SORT_62=4294967295, mask_SORT_72=7, mask_SORT_9=4294967295, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_101=8192, msb_SORT_105=2, msb_SORT_11=32768, msb_SORT_12=128, msb_SORT_154=64, msb_SORT_20=2147483648, msb_SORT_23=65536, msb_SORT_26=131072, msb_SORT_29=262144, msb_SORT_32=524288, msb_SORT_35=1048576, msb_SORT_38=2097152, msb_SORT_41=4194304, msb_SORT_44=8388608, msb_SORT_47=16777216, msb_SORT_50=33554432, msb_SORT_53=67108864, msb_SORT_56=134217728, msb_SORT_59=268435456, msb_SORT_62=536870912, msb_SORT_72=4, msb_SORT_9=1073741824, msb_SORT_96=8, state_100=0, state_17=65533, state_5=1, state_76=0, state_97=1, var_10=0, var_106=1, var_112=127, var_119=64, var_121=1, var_123=127, var_126=200, var_13=0, var_131=4, var_134=6, var_138=9, var_14=200, var_15=0, var_155=64, var_15_arg_0=1, var_15_arg_1=200, var_15_arg_2=0, var_16=0, var_166=0, var_169=0, var_16_arg_0=0, var_16_arg_1=0, var_18=32769, var_18_arg_0=0, var_18_arg_1=65533, var_19=1, var_19_arg_0=32769, var_21=0, var_21_arg_0=1, var_21_arg_1=0, var_22=1, var_22_arg_0=32769, var_24=4294967295, var_24_arg_0=1, var_24_arg_1=32769, var_25=1, var_25_arg_0=32769, var_27=1, var_27_arg_0=1, var_27_arg_1=4294967295, var_28=1, var_28_arg_0=32769, var_30=7, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=32769, var_33=2, var_33_arg_0=1, var_33_arg_1=7, var_34=1, var_34_arg_0=32769, var_36=0, var_36_arg_0=1, var_36_arg_1=2, var_37=1, var_37_arg_0=32769, var_39=0, var_39_arg_0=1, var_39_arg_1=0, var_40=1, var_40_arg_0=32769, var_42=0, var_42_arg_0=1, var_42_arg_1=0, var_43=1, var_43_arg_0=32769, var_45=0, var_45_arg_0=1, var_45_arg_1=0, var_46=1, var_46_arg_0=32769, var_48=0, var_48_arg_0=1, var_48_arg_1=0, var_49=1, var_49_arg_0=32769, var_51=6, var_51_arg_0=1, var_51_arg_1=0, var_52=1, var_52_arg_0=32769, var_54=1, var_54_arg_0=1, var_54_arg_1=6, var_55=1, var_55_arg_0=32769, var_57=1, var_57_arg_0=1, var_57_arg_1=1, var_58=1, var_58_arg_0=32769, var_60=0, var_60_arg_0=1, var_60_arg_1=1, var_61=1, var_61_arg_0=32769, var_63=0, var_63_arg_0=1, var_63_arg_1=0, var_64=1, var_64_arg_0=32769, var_65=1073741824, var_65_arg_0=1, var_65_arg_1=0, var_66=0, var_66_arg_0=0, var_67=1, var_67_arg_0=0, var_67_arg_1=0, var_68_arg_0=1, var_68_arg_1=1, var_68_arg_2=0, var_7=0, var_73=5, var_74=0, var_74_arg_0=0, var_75=0, var_78=0, var_78_arg_0=0, var_78_arg_1=0, var_8=1, var_84=5, var_84_arg_0=1, var_85=0, var_85_arg_0=5, var_86=1, var_86_arg_0=1, var_86_arg_1=0, var_88=1, var_88_arg_0=1, var_89=1, var_89_arg_0=0, var_89_arg_1=1, var_90=0, var_90_arg_0=1, var_90_arg_1=1, var_91=0, var_91_arg_0=0, var_92=2, var_92_arg_0=0, var_93=1, var_93_arg_0=0, var_93_arg_1=2] [L289] EXPR var_68_arg_0 ? var_68_arg_1 : var_68_arg_2 VAL [constr_87_arg_0=1, constr_94_arg_0=1, init_77_arg_1=0, input_2=3, input_3=1, input_4=1, mask_SORT_1=1, mask_SORT_101=16383, mask_SORT_105=3, mask_SORT_11=65535, mask_SORT_12=255, mask_SORT_154=127, mask_SORT_20=4294967295, mask_SORT_23=4294967295, mask_SORT_26=4294967295, mask_SORT_29=4294967295, mask_SORT_32=4294967295, mask_SORT_35=4294967295, mask_SORT_38=4294967295, mask_SORT_41=4294967295, mask_SORT_44=4294967295, mask_SORT_47=4294967295, mask_SORT_50=4294967295, mask_SORT_53=4294967295, mask_SORT_56=4294967295, mask_SORT_59=4294967295, mask_SORT_62=4294967295, mask_SORT_72=7, mask_SORT_9=4294967295, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_101=8192, msb_SORT_105=2, msb_SORT_11=32768, msb_SORT_12=128, msb_SORT_154=64, msb_SORT_20=2147483648, msb_SORT_23=65536, msb_SORT_26=131072, msb_SORT_29=262144, msb_SORT_32=524288, msb_SORT_35=1048576, msb_SORT_38=2097152, msb_SORT_41=4194304, msb_SORT_44=8388608, msb_SORT_47=16777216, msb_SORT_50=33554432, msb_SORT_53=67108864, msb_SORT_56=134217728, msb_SORT_59=268435456, msb_SORT_62=536870912, msb_SORT_72=4, msb_SORT_9=1073741824, msb_SORT_96=8, state_100=0, state_17=65533, state_5=1, state_76=0, state_97=1, var_10=0, var_106=1, var_112=127, var_119=64, var_121=1, var_123=127, var_126=200, var_13=0, var_131=4, var_134=6, var_138=9, var_14=200, var_15=0, var_155=64, var_15_arg_0=1, var_15_arg_1=200, var_15_arg_2=0, var_16=0, var_166=0, var_169=0, var_16_arg_0=0, var_16_arg_1=0, var_18=32769, var_18_arg_0=0, var_18_arg_1=65533, var_19=1, var_19_arg_0=32769, var_21=0, var_21_arg_0=1, var_21_arg_1=0, var_22=1, var_22_arg_0=32769, var_24=4294967295, var_24_arg_0=1, var_24_arg_1=32769, var_25=1, var_25_arg_0=32769, var_27=1, var_27_arg_0=1, var_27_arg_1=4294967295, var_28=1, var_28_arg_0=32769, var_30=7, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=32769, var_33=2, var_33_arg_0=1, var_33_arg_1=7, var_34=1, var_34_arg_0=32769, var_36=0, var_36_arg_0=1, var_36_arg_1=2, var_37=1, var_37_arg_0=32769, var_39=0, var_39_arg_0=1, var_39_arg_1=0, var_40=1, var_40_arg_0=32769, var_42=0, var_42_arg_0=1, var_42_arg_1=0, var_43=1, var_43_arg_0=32769, var_45=0, var_45_arg_0=1, var_45_arg_1=0, var_46=1, var_46_arg_0=32769, var_48=0, var_48_arg_0=1, var_48_arg_1=0, var_49=1, var_49_arg_0=32769, var_51=6, var_51_arg_0=1, var_51_arg_1=0, var_52=1, var_52_arg_0=32769, var_54=1, var_54_arg_0=1, var_54_arg_1=6, var_55=1, var_55_arg_0=32769, var_57=1, var_57_arg_0=1, var_57_arg_1=1, var_58=1, var_58_arg_0=32769, var_60=0, var_60_arg_0=1, var_60_arg_1=1, var_61=1, var_61_arg_0=32769, var_63=0, var_63_arg_0=1, var_63_arg_1=0, var_64=1, var_64_arg_0=32769, var_65=1073741824, var_65_arg_0=1, var_65_arg_1=0, var_66=0, var_66_arg_0=0, var_67=1, var_67_arg_0=0, var_67_arg_1=0, var_68_arg_0=1, var_68_arg_0 ? var_68_arg_1 : var_68_arg_2=1, var_68_arg_1=1, var_68_arg_2=0, var_7=0, var_73=5, var_74=0, var_74_arg_0=0, var_75=0, var_78=0, var_78_arg_0=0, var_78_arg_1=0, var_8=1, var_84=5, var_84_arg_0=1, var_85=0, var_85_arg_0=5, var_86=1, var_86_arg_0=1, var_86_arg_1=0, var_88=1, var_88_arg_0=1, var_89=1, var_89_arg_0=0, var_89_arg_1=1, var_90=0, var_90_arg_0=1, var_90_arg_1=1, var_91=0, var_91_arg_0=0, var_92=2, var_92_arg_0=0, var_93=1, var_93_arg_0=0, var_93_arg_1=2] [L289] SORT_1 var_68 = var_68_arg_0 ? var_68_arg_1 : var_68_arg_2; [L290] SORT_1 var_69_arg_0 = input_3; [L291] SORT_1 var_69_arg_1 = var_68; [L292] SORT_1 var_69 = var_69_arg_0 ^ var_69_arg_1; [L293] SORT_1 var_70_arg_0 = var_69; [L294] SORT_1 var_70 = ~var_70_arg_0; [L295] SORT_1 var_79_arg_0 = var_78; [L296] SORT_1 var_79_arg_1 = var_70; [L297] SORT_1 var_79_arg_2 = var_8; VAL [constr_87_arg_0=1, constr_94_arg_0=1, init_77_arg_1=0, input_2=3, input_3=1, input_4=1, mask_SORT_1=1, mask_SORT_101=16383, mask_SORT_105=3, mask_SORT_11=65535, mask_SORT_12=255, mask_SORT_154=127, mask_SORT_20=4294967295, mask_SORT_23=4294967295, mask_SORT_26=4294967295, mask_SORT_29=4294967295, mask_SORT_32=4294967295, mask_SORT_35=4294967295, mask_SORT_38=4294967295, mask_SORT_41=4294967295, mask_SORT_44=4294967295, mask_SORT_47=4294967295, mask_SORT_50=4294967295, mask_SORT_53=4294967295, mask_SORT_56=4294967295, mask_SORT_59=4294967295, mask_SORT_62=4294967295, mask_SORT_72=7, mask_SORT_9=4294967295, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_101=8192, msb_SORT_105=2, msb_SORT_11=32768, msb_SORT_12=128, msb_SORT_154=64, msb_SORT_20=2147483648, msb_SORT_23=65536, msb_SORT_26=131072, msb_SORT_29=262144, msb_SORT_32=524288, msb_SORT_35=1048576, msb_SORT_38=2097152, msb_SORT_41=4194304, msb_SORT_44=8388608, msb_SORT_47=16777216, msb_SORT_50=33554432, msb_SORT_53=67108864, msb_SORT_56=134217728, msb_SORT_59=268435456, msb_SORT_62=536870912, msb_SORT_72=4, msb_SORT_9=1073741824, msb_SORT_96=8, state_100=0, state_17=65533, state_5=1, state_76=0, state_97=1, var_10=0, var_106=1, var_112=127, var_119=64, var_121=1, var_123=127, var_126=200, var_13=0, var_131=4, var_134=6, var_138=9, var_14=200, var_15=0, var_155=64, var_15_arg_0=1, var_15_arg_1=200, var_15_arg_2=0, var_16=0, var_166=0, var_169=0, var_16_arg_0=0, var_16_arg_1=0, var_18=32769, var_18_arg_0=0, var_18_arg_1=65533, var_19=1, var_19_arg_0=32769, var_21=0, var_21_arg_0=1, var_21_arg_1=0, var_22=1, var_22_arg_0=32769, var_24=4294967295, var_24_arg_0=1, var_24_arg_1=32769, var_25=1, var_25_arg_0=32769, var_27=1, var_27_arg_0=1, var_27_arg_1=4294967295, var_28=1, var_28_arg_0=32769, var_30=7, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=32769, var_33=2, var_33_arg_0=1, var_33_arg_1=7, var_34=1, var_34_arg_0=32769, var_36=0, var_36_arg_0=1, var_36_arg_1=2, var_37=1, var_37_arg_0=32769, var_39=0, var_39_arg_0=1, var_39_arg_1=0, var_40=1, var_40_arg_0=32769, var_42=0, var_42_arg_0=1, var_42_arg_1=0, var_43=1, var_43_arg_0=32769, var_45=0, var_45_arg_0=1, var_45_arg_1=0, var_46=1, var_46_arg_0=32769, var_48=0, var_48_arg_0=1, var_48_arg_1=0, var_49=1, var_49_arg_0=32769, var_51=6, var_51_arg_0=1, var_51_arg_1=0, var_52=1, var_52_arg_0=32769, var_54=1, var_54_arg_0=1, var_54_arg_1=6, var_55=1, var_55_arg_0=32769, var_57=1, var_57_arg_0=1, var_57_arg_1=1, var_58=1, var_58_arg_0=32769, var_60=0, var_60_arg_0=1, var_60_arg_1=1, var_61=1, var_61_arg_0=32769, var_63=0, var_63_arg_0=1, var_63_arg_1=0, var_64=1, var_64_arg_0=32769, var_65=1073741824, var_65_arg_0=1, var_65_arg_1=0, var_66=0, var_66_arg_0=0, var_67=1, var_67_arg_0=0, var_67_arg_1=0, var_68=1, var_68_arg_0=1, var_68_arg_1=1, var_68_arg_2=0, var_69=0, var_69_arg_0=1, var_69_arg_1=1, var_7=0, var_70=4, var_70_arg_0=0, var_73=5, var_74=0, var_74_arg_0=0, var_75=0, var_78=0, var_78_arg_0=0, var_78_arg_1=0, var_79_arg_0=0, var_79_arg_1=4, var_79_arg_2=1, var_8=1, var_84=5, var_84_arg_0=1, var_85=0, var_85_arg_0=5, var_86=1, var_86_arg_0=1, var_86_arg_1=0, var_88=1, var_88_arg_0=1, var_89=1, var_89_arg_0=0, var_89_arg_1=1, var_90=0, var_90_arg_0=1, var_90_arg_1=1, var_91=0, var_91_arg_0=0, var_92=2, var_92_arg_0=0, var_93=1, var_93_arg_0=0, var_93_arg_1=2] [L298] EXPR var_79_arg_0 ? var_79_arg_1 : var_79_arg_2 VAL [constr_87_arg_0=1, constr_94_arg_0=1, init_77_arg_1=0, input_2=3, input_3=1, input_4=1, mask_SORT_1=1, mask_SORT_101=16383, mask_SORT_105=3, mask_SORT_11=65535, mask_SORT_12=255, mask_SORT_154=127, mask_SORT_20=4294967295, mask_SORT_23=4294967295, mask_SORT_26=4294967295, mask_SORT_29=4294967295, mask_SORT_32=4294967295, mask_SORT_35=4294967295, mask_SORT_38=4294967295, mask_SORT_41=4294967295, mask_SORT_44=4294967295, mask_SORT_47=4294967295, mask_SORT_50=4294967295, mask_SORT_53=4294967295, mask_SORT_56=4294967295, mask_SORT_59=4294967295, mask_SORT_62=4294967295, mask_SORT_72=7, mask_SORT_9=4294967295, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_101=8192, msb_SORT_105=2, msb_SORT_11=32768, msb_SORT_12=128, msb_SORT_154=64, msb_SORT_20=2147483648, msb_SORT_23=65536, msb_SORT_26=131072, msb_SORT_29=262144, msb_SORT_32=524288, msb_SORT_35=1048576, msb_SORT_38=2097152, msb_SORT_41=4194304, msb_SORT_44=8388608, msb_SORT_47=16777216, msb_SORT_50=33554432, msb_SORT_53=67108864, msb_SORT_56=134217728, msb_SORT_59=268435456, msb_SORT_62=536870912, msb_SORT_72=4, msb_SORT_9=1073741824, msb_SORT_96=8, state_100=0, state_17=65533, state_5=1, state_76=0, state_97=1, var_10=0, var_106=1, var_112=127, var_119=64, var_121=1, var_123=127, var_126=200, var_13=0, var_131=4, var_134=6, var_138=9, var_14=200, var_15=0, var_155=64, var_15_arg_0=1, var_15_arg_1=200, var_15_arg_2=0, var_16=0, var_166=0, var_169=0, var_16_arg_0=0, var_16_arg_1=0, var_18=32769, var_18_arg_0=0, var_18_arg_1=65533, var_19=1, var_19_arg_0=32769, var_21=0, var_21_arg_0=1, var_21_arg_1=0, var_22=1, var_22_arg_0=32769, var_24=4294967295, var_24_arg_0=1, var_24_arg_1=32769, var_25=1, var_25_arg_0=32769, var_27=1, var_27_arg_0=1, var_27_arg_1=4294967295, var_28=1, var_28_arg_0=32769, var_30=7, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=32769, var_33=2, var_33_arg_0=1, var_33_arg_1=7, var_34=1, var_34_arg_0=32769, var_36=0, var_36_arg_0=1, var_36_arg_1=2, var_37=1, var_37_arg_0=32769, var_39=0, var_39_arg_0=1, var_39_arg_1=0, var_40=1, var_40_arg_0=32769, var_42=0, var_42_arg_0=1, var_42_arg_1=0, var_43=1, var_43_arg_0=32769, var_45=0, var_45_arg_0=1, var_45_arg_1=0, var_46=1, var_46_arg_0=32769, var_48=0, var_48_arg_0=1, var_48_arg_1=0, var_49=1, var_49_arg_0=32769, var_51=6, var_51_arg_0=1, var_51_arg_1=0, var_52=1, var_52_arg_0=32769, var_54=1, var_54_arg_0=1, var_54_arg_1=6, var_55=1, var_55_arg_0=32769, var_57=1, var_57_arg_0=1, var_57_arg_1=1, var_58=1, var_58_arg_0=32769, var_60=0, var_60_arg_0=1, var_60_arg_1=1, var_61=1, var_61_arg_0=32769, var_63=0, var_63_arg_0=1, var_63_arg_1=0, var_64=1, var_64_arg_0=32769, var_65=1073741824, var_65_arg_0=1, var_65_arg_1=0, var_66=0, var_66_arg_0=0, var_67=1, var_67_arg_0=0, var_67_arg_1=0, var_68=1, var_68_arg_0=1, var_68_arg_1=1, var_68_arg_2=0, var_69=0, var_69_arg_0=1, var_69_arg_1=1, var_7=0, var_70=4, var_70_arg_0=0, var_73=5, var_74=0, var_74_arg_0=0, var_75=0, var_78=0, var_78_arg_0=0, var_78_arg_1=0, var_79_arg_0=0, var_79_arg_0 ? var_79_arg_1 : var_79_arg_2=1, var_79_arg_1=4, var_79_arg_2=1, var_8=1, var_84=5, var_84_arg_0=1, var_85=0, var_85_arg_0=5, var_86=1, var_86_arg_0=1, var_86_arg_1=0, var_88=1, var_88_arg_0=1, var_89=1, var_89_arg_0=0, var_89_arg_1=1, var_90=0, var_90_arg_0=1, var_90_arg_1=1, var_91=0, var_91_arg_0=0, var_92=2, var_92_arg_0=0, var_93=1, var_93_arg_0=0, var_93_arg_1=2] [L298] SORT_1 var_79 = var_79_arg_0 ? var_79_arg_1 : var_79_arg_2; [L299] SORT_1 var_80_arg_0 = var_79; [L300] SORT_1 var_80 = ~var_80_arg_0; [L301] SORT_1 var_81_arg_0 = var_79; [L302] SORT_1 var_81 = ~var_81_arg_0; [L303] SORT_1 var_82_arg_0 = var_80; [L304] SORT_1 var_82_arg_1 = var_81; [L305] SORT_1 var_82 = var_82_arg_0 & var_82_arg_1; [L306] var_82 = var_82 & mask_SORT_1 [L307] SORT_1 bad_83_arg_0 = var_82; [L308] CALL __VERIFIER_assert(!(bad_83_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 58 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 4/4 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 [2022-11-02 21:09:34,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4de94aaabb885b39de7c063dad9a583cbef1a5037a721fe952ddb512087f6e33 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 21:09:37,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:09:37,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:09:37,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:09:37,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:09:37,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:09:37,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:09:37,477 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:09:37,479 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:09:37,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:09:37,481 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:09:37,482 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:09:37,483 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:09:37,484 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:09:37,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:09:37,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:09:37,491 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:09:37,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:09:37,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:09:37,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:09:37,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:09:37,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:09:37,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:09:37,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:09:37,543 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:09:37,545 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:09:37,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:09:37,546 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:09:37,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:09:37,549 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:09:37,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:09:37,550 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:09:37,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:09:37,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:09:37,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:09:37,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:09:37,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:09:37,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:09:37,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:09:37,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:09:37,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:09:37,567 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-02 21:09:37,607 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:09:37,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:09:37,609 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:09:37,609 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:09:37,610 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:09:37,611 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:09:37,612 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:09:37,612 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:09:37,613 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:09:37,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:09:37,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:09:37,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:09:37,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:09:37,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:09:37,615 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 21:09:37,615 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-02 21:09:37,616 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-02 21:09:37,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:09:37,616 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:09:37,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:09:37,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:09:37,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:09:37,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:09:37,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:09:37,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:09:37,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:09:37,618 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:09:37,619 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-02 21:09:37,619 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-02 21:09:37,619 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:09:37,619 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:09:37,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:09:37,620 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-02 21:09:37,620 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4de94aaabb885b39de7c063dad9a583cbef1a5037a721fe952ddb512087f6e33 [2022-11-02 21:09:37,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:09:37,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:09:38,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:09:38,004 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:09:38,005 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:09:38,006 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c [2022-11-02 21:09:38,088 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/data/4718fb1a6/89243e7d8a2b453dbce9133eafa412e8/FLAG4a2533ba3 [2022-11-02 21:09:38,762 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:09:38,763 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c [2022-11-02 21:09:38,773 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/data/4718fb1a6/89243e7d8a2b453dbce9133eafa412e8/FLAG4a2533ba3 [2022-11-02 21:09:39,057 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/data/4718fb1a6/89243e7d8a2b453dbce9133eafa412e8 [2022-11-02 21:09:39,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:09:39,063 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:09:39,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:09:39,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:09:39,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:09:39,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:09:39" (1/1) ... [2022-11-02 21:09:39,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5789065c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:39, skipping insertion in model container [2022-11-02 21:09:39,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:09:39" (1/1) ... [2022-11-02 21:09:39,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:09:39,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:09:39,318 WARN L230 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_89abb637-2797-4b98-9086-c9642ecfdc44/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c[1120,1133] [2022-11-02 21:09:39,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:09:39,490 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:09:39,509 WARN L230 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_89abb637-2797-4b98-9086-c9642ecfdc44/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c[1120,1133] [2022-11-02 21:09:39,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:09:39,656 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:09:39,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:39 WrapperNode [2022-11-02 21:09:39,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:09:39,658 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:09:39,658 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:09:39,659 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:09:39,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:39" (1/1) ... [2022-11-02 21:09:39,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:39" (1/1) ... [2022-11-02 21:09:39,723 INFO L138 Inliner]: procedures = 11, calls = 5, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 469 [2022-11-02 21:09:39,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:09:39,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:09:39,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:09:39,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:09:39,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:39" (1/1) ... [2022-11-02 21:09:39,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:39" (1/1) ... [2022-11-02 21:09:39,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:39" (1/1) ... [2022-11-02 21:09:39,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:39" (1/1) ... [2022-11-02 21:09:39,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:39" (1/1) ... [2022-11-02 21:09:39,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:39" (1/1) ... [2022-11-02 21:09:39,760 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:39" (1/1) ... [2022-11-02 21:09:39,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:39" (1/1) ... [2022-11-02 21:09:39,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:09:39,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:09:39,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:09:39,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:09:39,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:39" (1/1) ... [2022-11-02 21:09:39,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:09:39,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:09:39,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:09:39,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:09:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:09:39,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:09:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-02 21:09:39,870 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-02 21:09:40,036 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:09:40,038 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:09:40,701 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:09:40,709 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:09:40,709 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 21:09:40,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:09:40 BoogieIcfgContainer [2022-11-02 21:09:40,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:09:40,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:09:40,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:09:40,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:09:40,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:09:39" (1/3) ... [2022-11-02 21:09:40,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627aba65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:09:40, skipping insertion in model container [2022-11-02 21:09:40,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:39" (2/3) ... [2022-11-02 21:09:40,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627aba65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:09:40, skipping insertion in model container [2022-11-02 21:09:40,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:09:40" (3/3) ... [2022-11-02 21:09:40,726 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.safe_analog_estimation_convergence.c [2022-11-02 21:09:40,747 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:09:40,747 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 21:09:40,813 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:09:40,833 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;@37a1154b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:09:40,834 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 21:09:40,838 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 43 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:09:40,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 21:09:40,846 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:09:40,847 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:40,848 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:09:40,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:40,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1047248489, now seen corresponding path program 1 times [2022-11-02 21:09:40,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:09:40,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1674549296] [2022-11-02 21:09:40,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:40,879 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:09:40,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:09:40,883 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:09:40,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-02 21:09:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:41,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-02 21:09:41,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:09:41,292 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-02 21:09:41,293 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:09:41,294 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:09:41,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1674549296] [2022-11-02 21:09:41,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1674549296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:41,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:41,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:41,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100991497] [2022-11-02 21:09:41,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:41,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 21:09:41,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:09:41,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 21:09:41,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 21:09:41,349 INFO L87 Difference]: Start difference. First operand has 47 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 43 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:09:41,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:09:41,385 INFO L93 Difference]: Finished difference Result 88 states and 127 transitions. [2022-11-02 21:09:41,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 21:09:41,391 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2022-11-02 21:09:41,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:09:41,398 INFO L225 Difference]: With dead ends: 88 [2022-11-02 21:09:41,398 INFO L226 Difference]: Without dead ends: 43 [2022-11-02 21:09:41,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 21:09:41,407 INFO L413 NwaCegarLoop]: 58 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, 58 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 [2022-11-02 21:09:41,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:09:41,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-02 21:09:41,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-11-02 21:09:41,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 39 states have internal predecessors, (54), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:09:41,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 58 transitions. [2022-11-02 21:09:41,470 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 58 transitions. Word has length 23 [2022-11-02 21:09:41,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:09:41,471 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 58 transitions. [2022-11-02 21:09:41,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:09:41,471 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2022-11-02 21:09:41,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 21:09:41,474 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:09:41,474 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:41,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-02 21:09:41,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:09:41,687 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:09:41,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:41,688 INFO L85 PathProgramCache]: Analyzing trace with hash -688730779, now seen corresponding path program 1 times [2022-11-02 21:09:41,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:09:41,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999542090] [2022-11-02 21:09:41,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:41,690 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:09:41,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:09:41,692 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:09:41,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-02 21:09:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:41,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:09:41,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:09:42,129 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-02 21:09:42,130 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:09:42,130 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:09:42,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999542090] [2022-11-02 21:09:42,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999542090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:42,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:42,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:09:42,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181528943] [2022-11-02 21:09:42,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:42,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:09:42,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:09:42,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:09:42,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:09:42,144 INFO L87 Difference]: Start difference. First operand 43 states and 58 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:09:42,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:09:42,457 INFO L93 Difference]: Finished difference Result 91 states and 126 transitions. [2022-11-02 21:09:42,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:09:42,457 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-11-02 21:09:42,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:09:42,459 INFO L225 Difference]: With dead ends: 91 [2022-11-02 21:09:42,459 INFO L226 Difference]: Without dead ends: 89 [2022-11-02 21:09:42,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:09:42,461 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 213 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:09:42,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 190 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:09:42,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-11-02 21:09:42,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 45. [2022-11-02 21:09:42,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 41 states have internal predecessors, (56), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:09:42,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2022-11-02 21:09:42,481 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 60 transitions. Word has length 23 [2022-11-02 21:09:42,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:09:42,481 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 60 transitions. [2022-11-02 21:09:42,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:09:42,482 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2022-11-02 21:09:42,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 21:09:42,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:09:42,484 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:42,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-02 21:09:42,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:09:42,696 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:09:42,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:42,697 INFO L85 PathProgramCache]: Analyzing trace with hash -688790361, now seen corresponding path program 1 times [2022-11-02 21:09:42,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:09:42,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [143089001] [2022-11-02 21:09:42,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:42,698 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:09:42,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:09:42,700 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:09:42,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-02 21:09:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:42,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 21:09:42,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:09:43,034 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-02 21:09:43,034 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:09:43,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:09:43,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [143089001] [2022-11-02 21:09:43,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [143089001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:43,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:43,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:09:43,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463882488] [2022-11-02 21:09:43,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:43,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:09:43,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:09:43,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:09:43,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:09:43,043 INFO L87 Difference]: Start difference. First operand 45 states and 60 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:09:43,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:09:43,162 INFO L93 Difference]: Finished difference Result 160 states and 223 transitions. [2022-11-02 21:09:43,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:09:43,165 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-11-02 21:09:43,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:09:43,172 INFO L225 Difference]: With dead ends: 160 [2022-11-02 21:09:43,172 INFO L226 Difference]: Without dead ends: 117 [2022-11-02 21:09:43,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:09:43,174 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 169 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:09:43,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 247 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:09:43,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-11-02 21:09:43,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 55. [2022-11-02 21:09:43,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 49 states have (on average 1.346938775510204) internal successors, (66), 49 states have internal predecessors, (66), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-02 21:09:43,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 74 transitions. [2022-11-02 21:09:43,198 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 74 transitions. Word has length 23 [2022-11-02 21:09:43,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:09:43,198 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 74 transitions. [2022-11-02 21:09:43,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:09:43,199 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 74 transitions. [2022-11-02 21:09:43,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-02 21:09:43,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:09:43,204 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:43,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-02 21:09:43,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:09:43,424 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:09:43,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:43,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1474256413, now seen corresponding path program 1 times [2022-11-02 21:09:43,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:09:43,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922402570] [2022-11-02 21:09:43,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:43,426 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:09:43,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:09:43,427 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:09:43,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-02 21:09:43,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:43,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:09:43,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:09:43,975 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-02 21:09:43,976 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:09:43,976 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:09:43,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [922402570] [2022-11-02 21:09:43,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [922402570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:43,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:43,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:09:43,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062479852] [2022-11-02 21:09:43,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:43,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:09:43,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:09:43,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:09:43,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:09:43,980 INFO L87 Difference]: Start difference. First operand 55 states and 74 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-02 21:09:44,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:09:44,034 INFO L93 Difference]: Finished difference Result 98 states and 132 transitions. [2022-11-02 21:09:44,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:09:44,035 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 66 [2022-11-02 21:09:44,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:09:44,037 INFO L225 Difference]: With dead ends: 98 [2022-11-02 21:09:44,037 INFO L226 Difference]: Without dead ends: 55 [2022-11-02 21:09:44,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:09:44,046 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 31 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:09:44,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 112 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:09:44,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-11-02 21:09:44,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2022-11-02 21:09:44,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 49 states have (on average 1.3265306122448979) internal successors, (65), 49 states have internal predecessors, (65), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-02 21:09:44,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 73 transitions. [2022-11-02 21:09:44,067 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 73 transitions. Word has length 66 [2022-11-02 21:09:44,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:09:44,067 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 73 transitions. [2022-11-02 21:09:44,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-02 21:09:44,068 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 73 transitions. [2022-11-02 21:09:44,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-02 21:09:44,069 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:09:44,069 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:44,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-02 21:09:44,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:09:44,283 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:09:44,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:44,284 INFO L85 PathProgramCache]: Analyzing trace with hash 630250911, now seen corresponding path program 1 times [2022-11-02 21:09:44,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:09:44,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136482519] [2022-11-02 21:09:44,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:44,285 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:09:44,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:09:44,286 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:09:44,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-02 21:09:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:44,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 21:09:44,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:09:44,910 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-02 21:09:44,910 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:09:44,910 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:09:44,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136482519] [2022-11-02 21:09:44,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2136482519] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:44,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:44,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:09:44,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998144624] [2022-11-02 21:09:44,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:44,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:09:44,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:09:44,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:09:44,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:09:44,913 INFO L87 Difference]: Start difference. First operand 55 states and 73 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-02 21:09:44,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:09:44,983 INFO L93 Difference]: Finished difference Result 112 states and 149 transitions. [2022-11-02 21:09:44,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:09:44,986 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 66 [2022-11-02 21:09:44,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:09:44,987 INFO L225 Difference]: With dead ends: 112 [2022-11-02 21:09:44,987 INFO L226 Difference]: Without dead ends: 69 [2022-11-02 21:09:44,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:09:44,988 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 22 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:09:44,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 202 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 17 Unchecked, 0.0s Time] [2022-11-02 21:09:44,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-02 21:09:44,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-02 21:09:44,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 63 states have internal predecessors, (83), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-02 21:09:44,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 91 transitions. [2022-11-02 21:09:44,998 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 91 transitions. Word has length 66 [2022-11-02 21:09:44,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:09:44,998 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 91 transitions. [2022-11-02 21:09:44,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-02 21:09:44,999 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 91 transitions. [2022-11-02 21:09:45,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-02 21:09:45,000 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:09:45,000 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:45,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-02 21:09:45,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:09:45,224 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:09:45,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:45,225 INFO L85 PathProgramCache]: Analyzing trace with hash 557864353, now seen corresponding path program 1 times [2022-11-02 21:09:45,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:09:45,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1745891085] [2022-11-02 21:09:45,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:45,225 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:09:45,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:09:45,227 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:09:45,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-02 21:09:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:45,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:09:45,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:09:45,685 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-02 21:09:45,686 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:09:45,686 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:09:45,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1745891085] [2022-11-02 21:09:45,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1745891085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:45,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:45,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:09:45,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679393542] [2022-11-02 21:09:45,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:45,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:09:45,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:09:45,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:09:45,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:09:45,690 INFO L87 Difference]: Start difference. First operand 69 states and 91 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-02 21:09:45,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:09:45,836 INFO L93 Difference]: Finished difference Result 195 states and 263 transitions. [2022-11-02 21:09:45,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:09:45,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 66 [2022-11-02 21:09:45,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:09:45,839 INFO L225 Difference]: With dead ends: 195 [2022-11-02 21:09:45,840 INFO L226 Difference]: Without dead ends: 152 [2022-11-02 21:09:45,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:09:45,844 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 188 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:09:45,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 269 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:09:45,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2022-11-02 21:09:45,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 97. [2022-11-02 21:09:45,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 91 states have (on average 1.3296703296703296) internal successors, (121), 91 states have internal predecessors, (121), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-02 21:09:45,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 129 transitions. [2022-11-02 21:09:45,873 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 129 transitions. Word has length 66 [2022-11-02 21:09:45,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:09:45,875 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 129 transitions. [2022-11-02 21:09:45,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-02 21:09:45,875 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 129 transitions. [2022-11-02 21:09:45,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-02 21:09:45,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:09:45,878 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:45,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-02 21:09:46,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:09:46,099 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:09:46,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:46,100 INFO L85 PathProgramCache]: Analyzing trace with hash 417315743, now seen corresponding path program 1 times [2022-11-02 21:09:46,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:09:46,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [701847343] [2022-11-02 21:09:46,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:46,101 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:09:46,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:09:46,103 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:09:46,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-02 21:09:46,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:46,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-02 21:09:46,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:09:47,066 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-02 21:09:47,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:09:47,427 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:09:47,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [701847343] [2022-11-02 21:09:47,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [701847343] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:09:47,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [870311361] [2022-11-02 21:09:47,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:47,428 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-02 21:09:47,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 [2022-11-02 21:09:47,435 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-02 21:09:47,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2022-11-02 21:09:48,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:48,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-02 21:09:48,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:09:48,758 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-02 21:09:48,758 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:09:49,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [870311361] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:09:49,308 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:09:49,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 11] total 16 [2022-11-02 21:09:49,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803605479] [2022-11-02 21:09:49,308 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:09:49,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-02 21:09:49,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:09:49,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-02 21:09:49,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2022-11-02 21:09:49,311 INFO L87 Difference]: Start difference. First operand 97 states and 129 transitions. Second operand has 16 states, 16 states have (on average 5.8125) internal successors, (93), 16 states have internal predecessors, (93), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-02 21:09:50,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:09:50,615 INFO L93 Difference]: Finished difference Result 324 states and 440 transitions. [2022-11-02 21:09:50,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-02 21:09:50,616 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.8125) internal successors, (93), 16 states have internal predecessors, (93), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 66 [2022-11-02 21:09:50,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:09:50,619 INFO L225 Difference]: With dead ends: 324 [2022-11-02 21:09:50,619 INFO L226 Difference]: Without dead ends: 263 [2022-11-02 21:09:50,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=328, Invalid=2122, Unknown=0, NotChecked=0, Total=2450 [2022-11-02 21:09:50,621 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 99 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 158 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:09:50,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 898 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 158 Unchecked, 0.1s Time] [2022-11-02 21:09:50,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2022-11-02 21:09:50,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 219. [2022-11-02 21:09:50,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 209 states have (on average 1.3444976076555024) internal successors, (281), 209 states have internal predecessors, (281), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-02 21:09:50,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 297 transitions. [2022-11-02 21:09:50,642 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 297 transitions. Word has length 66 [2022-11-02 21:09:50,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:09:50,643 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 297 transitions. [2022-11-02 21:09:50,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.8125) internal successors, (93), 16 states have internal predecessors, (93), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-02 21:09:50,643 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 297 transitions. [2022-11-02 21:09:50,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-02 21:09:50,645 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:09:50,645 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:50,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2022-11-02 21:09:50,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-02 21:09:51,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:09:51,051 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:09:51,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:51,052 INFO L85 PathProgramCache]: Analyzing trace with hash -392030883, now seen corresponding path program 1 times [2022-11-02 21:09:51,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:09:51,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [969686182] [2022-11-02 21:09:51,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:51,052 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:09:51,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:09:51,053 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:09:51,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-02 21:09:51,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:51,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-02 21:09:51,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:09:52,369 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-02 21:09:52,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:09:52,981 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:09:52,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [969686182] [2022-11-02 21:09:52,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [969686182] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:09:52,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1387708562] [2022-11-02 21:09:52,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:52,982 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-02 21:09:52,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 [2022-11-02 21:09:52,983 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-02 21:09:52,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2022-11-02 21:09:53,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:53,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-02 21:09:53,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:09:54,570 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-02 21:09:54,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:09:55,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1387708562] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:09:55,002 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:09:55,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2022-11-02 21:09:55,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005940447] [2022-11-02 21:09:55,002 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:09:55,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-02 21:09:55,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:09:55,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-02 21:09:55,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2022-11-02 21:09:55,004 INFO L87 Difference]: Start difference. First operand 219 states and 297 transitions. Second operand has 17 states, 17 states have (on average 5.352941176470588) internal successors, (91), 17 states have internal predecessors, (91), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-02 21:09:57,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:09:57,024 INFO L93 Difference]: Finished difference Result 763 states and 1039 transitions. [2022-11-02 21:09:57,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-02 21:09:57,025 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.352941176470588) internal successors, (91), 17 states have internal predecessors, (91), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 66 [2022-11-02 21:09:57,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:09:57,028 INFO L225 Difference]: With dead ends: 763 [2022-11-02 21:09:57,029 INFO L226 Difference]: Without dead ends: 702 [2022-11-02 21:09:57,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=325, Invalid=1745, Unknown=0, NotChecked=0, Total=2070 [2022-11-02 21:09:57,031 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 341 mSDsluCounter, 961 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 153 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:09:57,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 1033 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 224 Invalid, 0 Unknown, 153 Unchecked, 0.5s Time] [2022-11-02 21:09:57,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2022-11-02 21:09:57,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 300. [2022-11-02 21:09:57,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 284 states have (on average 1.3450704225352113) internal successors, (382), 284 states have internal predecessors, (382), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-02 21:09:57,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 410 transitions. [2022-11-02 21:09:57,066 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 410 transitions. Word has length 66 [2022-11-02 21:09:57,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:09:57,067 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 410 transitions. [2022-11-02 21:09:57,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.352941176470588) internal successors, (91), 17 states have internal predecessors, (91), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-02 21:09:57,067 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 410 transitions. [2022-11-02 21:09:57,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-02 21:09:57,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:09:57,070 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:57,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-02 21:09:57,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2022-11-02 21:09:57,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt [2022-11-02 21:09:57,488 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:09:57,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:57,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1101558499, now seen corresponding path program 1 times [2022-11-02 21:09:57,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:09:57,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1413649388] [2022-11-02 21:09:57,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:57,489 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:09:57,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:09:57,490 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:09:57,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-02 21:09:57,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:57,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-02 21:09:57,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:09:58,243 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 77 proven. 14 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-02 21:09:58,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:09:58,507 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:09:58,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1413649388] [2022-11-02 21:09:58,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1413649388] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:09:58,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [14359585] [2022-11-02 21:09:58,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:58,508 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-02 21:09:58,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 [2022-11-02 21:09:58,510 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-02 21:09:58,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2022-11-02 21:09:59,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:59,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:09:59,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:09:59,891 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 71 proven. 20 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-02 21:09:59,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:10:00,320 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 39 proven. 20 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-02 21:10:00,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [14359585] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:10:00,320 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:10:00,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 19 [2022-11-02 21:10:00,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261437032] [2022-11-02 21:10:00,321 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:10:00,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-02 21:10:00,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:10:00,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-02 21:10:00,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2022-11-02 21:10:00,323 INFO L87 Difference]: Start difference. First operand 300 states and 410 transitions. Second operand has 19 states, 19 states have (on average 9.947368421052632) internal successors, (189), 19 states have internal predecessors, (189), 7 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2022-11-02 21:10:03,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:10:03,932 INFO L93 Difference]: Finished difference Result 1128 states and 1543 transitions. [2022-11-02 21:10:03,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-02 21:10:03,933 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 9.947368421052632) internal successors, (189), 19 states have internal predecessors, (189), 7 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) Word has length 109 [2022-11-02 21:10:03,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:10:03,938 INFO L225 Difference]: With dead ends: 1128 [2022-11-02 21:10:03,938 INFO L226 Difference]: Without dead ends: 1010 [2022-11-02 21:10:03,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 876 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1135, Invalid=3835, Unknown=0, NotChecked=0, Total=4970 [2022-11-02 21:10:03,942 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 608 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 1601 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:10:03,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 1601 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 814 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-02 21:10:03,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2022-11-02 21:10:04,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 514. [2022-11-02 21:10:04,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 478 states have (on average 1.3284518828451883) internal successors, (635), 478 states have internal predecessors, (635), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-11-02 21:10:04,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 703 transitions. [2022-11-02 21:10:04,035 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 703 transitions. Word has length 109 [2022-11-02 21:10:04,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:10:04,036 INFO L495 AbstractCegarLoop]: Abstraction has 514 states and 703 transitions. [2022-11-02 21:10:04,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.947368421052632) internal successors, (189), 19 states have internal predecessors, (189), 7 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2022-11-02 21:10:04,037 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 703 transitions. [2022-11-02 21:10:04,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-02 21:10:04,042 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:10:04,042 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:04,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2022-11-02 21:10:04,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-02 21:10:04,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:10:04,448 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:10:04,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:04,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1004245353, now seen corresponding path program 1 times [2022-11-02 21:10:04,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:10:04,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1827460732] [2022-11-02 21:10:04,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:04,449 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:10:04,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:10:04,450 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:10:04,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-02 21:10:04,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:04,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 21:10:04,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:10:05,221 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 67 proven. 17 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-02 21:10:05,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:10:05,343 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:10:05,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1827460732] [2022-11-02 21:10:05,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1827460732] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:10:05,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1724376992] [2022-11-02 21:10:05,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:05,344 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-02 21:10:05,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 [2022-11-02 21:10:05,347 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-02 21:10:05,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2022-11-02 21:10:05,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:05,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:10:05,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:10:05,916 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-02 21:10:05,916 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:10:05,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1724376992] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:05,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 21:10:05,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-11-02 21:10:05,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997641991] [2022-11-02 21:10:05,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:05,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:10:05,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:10:05,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:10:05,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:10:05,918 INFO L87 Difference]: Start difference. First operand 514 states and 703 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-02 21:10:06,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:10:06,179 INFO L93 Difference]: Finished difference Result 1520 states and 2081 transitions. [2022-11-02 21:10:06,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:10:06,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 109 [2022-11-02 21:10:06,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:10:06,185 INFO L225 Difference]: With dead ends: 1520 [2022-11-02 21:10:06,185 INFO L226 Difference]: Without dead ends: 1126 [2022-11-02 21:10:06,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-02 21:10:06,187 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 151 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:10:06,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 359 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:10:06,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2022-11-02 21:10:06,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 514. [2022-11-02 21:10:06,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 478 states have (on average 1.3117154811715481) internal successors, (627), 478 states have internal predecessors, (627), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-11-02 21:10:06,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 695 transitions. [2022-11-02 21:10:06,284 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 695 transitions. Word has length 109 [2022-11-02 21:10:06,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:10:06,285 INFO L495 AbstractCegarLoop]: Abstraction has 514 states and 695 transitions. [2022-11-02 21:10:06,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-02 21:10:06,285 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 695 transitions. [2022-11-02 21:10:06,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-02 21:10:06,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:10:06,290 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:06,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2022-11-02 21:10:06,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-11-02 21:10:06,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:10:06,695 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:10:06,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:06,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1904518549, now seen corresponding path program 1 times [2022-11-02 21:10:06,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:10:06,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [716044051] [2022-11-02 21:10:06,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:06,696 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:10:06,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:10:06,697 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:10:06,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-02 21:10:07,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:07,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 21:10:07,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:10:07,531 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 67 proven. 17 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-02 21:10:07,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:10:07,658 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:10:07,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [716044051] [2022-11-02 21:10:07,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [716044051] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:10:07,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1157019236] [2022-11-02 21:10:07,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:07,659 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-02 21:10:07,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 [2022-11-02 21:10:07,664 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-02 21:10:07,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2022-11-02 21:10:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:08,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 21:10:08,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:10:08,899 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 67 proven. 17 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-02 21:10:08,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:10:09,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1157019236] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:10:09,008 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:10:09,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2022-11-02 21:10:09,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575779440] [2022-11-02 21:10:09,009 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:10:09,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:10:09,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:10:09,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:10:09,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:10:09,010 INFO L87 Difference]: Start difference. First operand 514 states and 695 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-02 21:10:09,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:10:09,209 INFO L93 Difference]: Finished difference Result 1394 states and 1896 transitions. [2022-11-02 21:10:09,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:10:09,210 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 109 [2022-11-02 21:10:09,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:10:09,218 INFO L225 Difference]: With dead ends: 1394 [2022-11-02 21:10:09,218 INFO L226 Difference]: Without dead ends: 960 [2022-11-02 21:10:09,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 315 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:10:09,221 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 21 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 28 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:10:09,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 208 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 28 Unchecked, 0.1s Time] [2022-11-02 21:10:09,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2022-11-02 21:10:09,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 958. [2022-11-02 21:10:09,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 890 states have (on average 1.306741573033708) internal successors, (1163), 890 states have internal predecessors, (1163), 66 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2022-11-02 21:10:09,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1295 transitions. [2022-11-02 21:10:09,361 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1295 transitions. Word has length 109 [2022-11-02 21:10:09,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:10:09,362 INFO L495 AbstractCegarLoop]: Abstraction has 958 states and 1295 transitions. [2022-11-02 21:10:09,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-02 21:10:09,362 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1295 transitions. [2022-11-02 21:10:09,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-02 21:10:09,369 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:10:09,370 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:09,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-02 21:10:09,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2022-11-02 21:10:09,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt [2022-11-02 21:10:09,787 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:10:09,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:09,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1976905107, now seen corresponding path program 1 times [2022-11-02 21:10:09,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:10:09,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1977305522] [2022-11-02 21:10:09,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:09,789 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:10:09,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:10:09,790 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:10:09,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-02 21:10:10,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:10,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-02 21:10:10,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:10:11,591 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-11-02 21:10:11,591 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:10:11,955 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:10:11,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1977305522] [2022-11-02 21:10:11,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1977305522] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:10:11,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [318996223] [2022-11-02 21:10:11,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:11,956 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-02 21:10:11,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 [2022-11-02 21:10:11,957 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-02 21:10:11,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2022-11-02 21:10:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:12,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-02 21:10:12,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:10:13,918 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-11-02 21:10:13,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:10:13,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [318996223] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:10:13,973 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:10:13,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2022-11-02 21:10:13,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217807302] [2022-11-02 21:10:13,978 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:10:13,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:10:13,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:10:13,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:10:13,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-11-02 21:10:13,979 INFO L87 Difference]: Start difference. First operand 958 states and 1295 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-02 21:10:15,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:10:15,200 INFO L93 Difference]: Finished difference Result 1608 states and 2147 transitions. [2022-11-02 21:10:15,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-02 21:10:15,201 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 109 [2022-11-02 21:10:15,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:10:15,206 INFO L225 Difference]: With dead ends: 1608 [2022-11-02 21:10:15,207 INFO L226 Difference]: Without dead ends: 1242 [2022-11-02 21:10:15,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=190, Invalid=512, Unknown=0, NotChecked=0, Total=702 [2022-11-02 21:10:15,209 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 450 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:10:15,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 658 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 21:10:15,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2022-11-02 21:10:15,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 950. [2022-11-02 21:10:15,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 950 states, 882 states have (on average 1.2868480725623583) internal successors, (1135), 882 states have internal predecessors, (1135), 66 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2022-11-02 21:10:15,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1267 transitions. [2022-11-02 21:10:15,385 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1267 transitions. Word has length 109 [2022-11-02 21:10:15,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:10:15,387 INFO L495 AbstractCegarLoop]: Abstraction has 950 states and 1267 transitions. [2022-11-02 21:10:15,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-02 21:10:15,387 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1267 transitions. [2022-11-02 21:10:15,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-02 21:10:15,392 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:10:15,392 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:15,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2022-11-02 21:10:15,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-02 21:10:15,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:10:15,801 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:10:15,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:15,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1451457261, now seen corresponding path program 1 times [2022-11-02 21:10:15,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:10:15,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [961287433] [2022-11-02 21:10:15,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:15,803 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:10:15,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:10:15,805 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:10:15,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-02 21:10:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:16,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-02 21:10:16,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:10:17,727 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-11-02 21:10:17,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:10:18,472 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:10:18,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [961287433] [2022-11-02 21:10:18,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [961287433] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:10:18,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [856901350] [2022-11-02 21:10:18,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:18,473 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-02 21:10:18,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 [2022-11-02 21:10:18,476 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-02 21:10:18,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2022-11-02 21:10:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:19,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-02 21:10:19,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:10:20,827 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 4 proven. 55 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-02 21:10:20,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:10:22,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [856901350] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:10:22,036 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:10:22,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2022-11-02 21:10:22,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014296083] [2022-11-02 21:10:22,037 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:10:22,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-02 21:10:22,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:10:22,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-02 21:10:22,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=625, Unknown=0, NotChecked=0, Total=702 [2022-11-02 21:10:22,039 INFO L87 Difference]: Start difference. First operand 950 states and 1267 transitions. Second operand has 19 states, 19 states have (on average 7.2105263157894735) internal successors, (137), 19 states have internal predecessors, (137), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-02 21:10:31,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:10:31,466 INFO L93 Difference]: Finished difference Result 6510 states and 8596 transitions. [2022-11-02 21:10:31,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-11-02 21:10:31,467 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.2105263157894735) internal successors, (137), 19 states have internal predecessors, (137), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 109 [2022-11-02 21:10:31,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:10:31,484 INFO L225 Difference]: With dead ends: 6510 [2022-11-02 21:10:31,484 INFO L226 Difference]: Without dead ends: 5952 [2022-11-02 21:10:31,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4455 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=2104, Invalid=11938, Unknown=0, NotChecked=0, Total=14042 [2022-11-02 21:10:31,490 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 1483 mSDsluCounter, 2544 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 2780 SdHoareTripleChecker+Invalid, 1876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 426 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:10:31,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 2780 Invalid, 1876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 1215 Invalid, 0 Unknown, 426 Unchecked, 2.5s Time] [2022-11-02 21:10:31,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5952 states. [2022-11-02 21:10:31,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5952 to 2174. [2022-11-02 21:10:31,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2174 states, 2042 states have (on average 1.2874632713026444) internal successors, (2629), 2042 states have internal predecessors, (2629), 130 states have call successors, (130), 1 states have call predecessors, (130), 1 states have return successors, (130), 130 states have call predecessors, (130), 130 states have call successors, (130) [2022-11-02 21:10:31,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2174 states to 2174 states and 2889 transitions. [2022-11-02 21:10:31,791 INFO L78 Accepts]: Start accepts. Automaton has 2174 states and 2889 transitions. Word has length 109 [2022-11-02 21:10:31,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:10:31,791 INFO L495 AbstractCegarLoop]: Abstraction has 2174 states and 2889 transitions. [2022-11-02 21:10:31,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.2105263157894735) internal successors, (137), 19 states have internal predecessors, (137), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-02 21:10:31,792 INFO L276 IsEmpty]: Start isEmpty. Operand 2174 states and 2889 transitions. [2022-11-02 21:10:31,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-02 21:10:31,801 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:10:31,801 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:31,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2022-11-02 21:10:32,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-02 21:10:32,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:10:32,208 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:10:32,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:32,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1424016219, now seen corresponding path program 1 times [2022-11-02 21:10:32,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:10:32,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1694098910] [2022-11-02 21:10:32,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:32,209 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:10:32,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:10:32,210 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:10:32,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-02 21:10:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:32,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-02 21:10:32,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:10:33,825 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 137 proven. 67 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-11-02 21:10:33,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:10:35,962 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:10:35,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1694098910] [2022-11-02 21:10:35,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1694098910] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:10:35,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [831878150] [2022-11-02 21:10:35,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:35,964 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-02 21:10:35,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 [2022-11-02 21:10:35,965 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-02 21:10:35,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2022-11-02 21:10:37,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:37,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 21:10:37,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:10:37,729 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 106 proven. 34 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-02 21:10:37,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:10:37,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [831878150] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:10:37,984 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:10:37,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5] total 16 [2022-11-02 21:10:37,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386144066] [2022-11-02 21:10:37,985 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:10:37,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-02 21:10:37,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:10:37,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-02 21:10:37,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702 [2022-11-02 21:10:37,987 INFO L87 Difference]: Start difference. First operand 2174 states and 2889 transitions. Second operand has 16 states, 15 states have (on average 11.8) internal successors, (177), 16 states have internal predecessors, (177), 6 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2022-11-02 21:10:39,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:10:39,586 INFO L93 Difference]: Finished difference Result 3236 states and 4303 transitions. [2022-11-02 21:10:39,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-02 21:10:39,586 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 11.8) internal successors, (177), 16 states have internal predecessors, (177), 6 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 152 [2022-11-02 21:10:39,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:10:39,599 INFO L225 Difference]: With dead ends: 3236 [2022-11-02 21:10:39,599 INFO L226 Difference]: Without dead ends: 2442 [2022-11-02 21:10:39,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 425 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=228, Invalid=1842, Unknown=0, NotChecked=0, Total=2070 [2022-11-02 21:10:39,601 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 96 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 226 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:10:39,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 986 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 179 Invalid, 0 Unknown, 226 Unchecked, 0.3s Time] [2022-11-02 21:10:39,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2022-11-02 21:10:39,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 1590. [2022-11-02 21:10:39,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1490 states have (on average 1.2664429530201342) internal successors, (1887), 1490 states have internal predecessors, (1887), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2022-11-02 21:10:39,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 2083 transitions. [2022-11-02 21:10:39,866 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 2083 transitions. Word has length 152 [2022-11-02 21:10:39,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:10:39,867 INFO L495 AbstractCegarLoop]: Abstraction has 1590 states and 2083 transitions. [2022-11-02 21:10:39,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 11.8) internal successors, (177), 16 states have internal predecessors, (177), 6 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2022-11-02 21:10:39,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 2083 transitions. [2022-11-02 21:10:39,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-02 21:10:39,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:10:39,873 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:39,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2022-11-02 21:10:40,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-02 21:10:40,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:10:40,283 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:10:40,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:40,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1832534685, now seen corresponding path program 1 times [2022-11-02 21:10:40,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:10:40,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1754922746] [2022-11-02 21:10:40,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:40,285 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:10:40,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:10:40,286 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:10:40,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-02 21:10:40,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:40,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 21:10:40,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:10:41,046 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 102 proven. 50 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-11-02 21:10:41,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:10:41,111 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2022-11-02 21:10:41,115 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:10:41,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1754922746] [2022-11-02 21:10:41,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1754922746] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-02 21:10:41,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 21:10:41,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2022-11-02 21:10:41,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743251866] [2022-11-02 21:10:41,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:41,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:10:41,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:10:41,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:10:41,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:10:41,129 INFO L87 Difference]: Start difference. First operand 1590 states and 2083 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-02 21:10:41,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:10:41,479 INFO L93 Difference]: Finished difference Result 3590 states and 4628 transitions. [2022-11-02 21:10:41,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:10:41,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 152 [2022-11-02 21:10:41,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:10:41,487 INFO L225 Difference]: With dead ends: 3590 [2022-11-02 21:10:41,487 INFO L226 Difference]: Without dead ends: 2336 [2022-11-02 21:10:41,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:10:41,490 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 92 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:10:41,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 280 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:10:41,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2022-11-02 21:10:41,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 1958. [2022-11-02 21:10:41,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1958 states, 1858 states have (on average 1.2567276641550054) internal successors, (2335), 1858 states have internal predecessors, (2335), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2022-11-02 21:10:41,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1958 states to 1958 states and 2531 transitions. [2022-11-02 21:10:41,779 INFO L78 Accepts]: Start accepts. Automaton has 1958 states and 2531 transitions. Word has length 152 [2022-11-02 21:10:41,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:10:41,780 INFO L495 AbstractCegarLoop]: Abstraction has 1958 states and 2531 transitions. [2022-11-02 21:10:41,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-02 21:10:41,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1958 states and 2531 transitions. [2022-11-02 21:10:41,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-02 21:10:41,786 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:10:41,786 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:41,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-11-02 21:10:42,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:10:42,007 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:10:42,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:42,008 INFO L85 PathProgramCache]: Analyzing trace with hash -951486111, now seen corresponding path program 1 times [2022-11-02 21:10:42,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:10:42,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605844605] [2022-11-02 21:10:42,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:42,009 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:10:42,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:10:42,013 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:10:42,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-02 21:10:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:42,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 21:10:42,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:10:42,757 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 94 proven. 58 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-11-02 21:10:42,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:10:42,838 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2022-11-02 21:10:42,839 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:10:42,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1605844605] [2022-11-02 21:10:42,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1605844605] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-02 21:10:42,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 21:10:42,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2022-11-02 21:10:42,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032765656] [2022-11-02 21:10:42,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:42,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:10:42,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:10:42,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:10:42,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:10:42,841 INFO L87 Difference]: Start difference. First operand 1958 states and 2531 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-02 21:10:43,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:10:43,463 INFO L93 Difference]: Finished difference Result 5422 states and 7000 transitions. [2022-11-02 21:10:43,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:10:43,464 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 152 [2022-11-02 21:10:43,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:10:43,475 INFO L225 Difference]: With dead ends: 5422 [2022-11-02 21:10:43,475 INFO L226 Difference]: Without dead ends: 3920 [2022-11-02 21:10:43,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:10:43,478 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 87 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:10:43,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 336 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:10:43,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2022-11-02 21:10:43,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 2054. [2022-11-02 21:10:43,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2054 states, 1954 states have (on average 1.2502558853633572) internal successors, (2443), 1954 states have internal predecessors, (2443), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2022-11-02 21:10:43,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2054 states to 2054 states and 2639 transitions. [2022-11-02 21:10:43,767 INFO L78 Accepts]: Start accepts. Automaton has 2054 states and 2639 transitions. Word has length 152 [2022-11-02 21:10:43,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:10:43,768 INFO L495 AbstractCegarLoop]: Abstraction has 2054 states and 2639 transitions. [2022-11-02 21:10:43,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-02 21:10:43,768 INFO L276 IsEmpty]: Start isEmpty. Operand 2054 states and 2639 transitions. [2022-11-02 21:10:43,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-02 21:10:43,774 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:10:43,774 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:43,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-02 21:10:43,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:10:43,999 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:10:44,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:44,000 INFO L85 PathProgramCache]: Analyzing trace with hash 971741923, now seen corresponding path program 1 times [2022-11-02 21:10:44,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:10:44,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [318927155] [2022-11-02 21:10:44,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:44,001 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:10:44,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:10:44,003 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:10:44,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-02 21:10:44,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:44,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 21:10:44,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:10:44,861 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 86 proven. 66 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-11-02 21:10:44,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:10:44,925 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2022-11-02 21:10:44,925 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:10:44,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [318927155] [2022-11-02 21:10:44,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [318927155] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-02 21:10:44,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 21:10:44,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2022-11-02 21:10:44,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417828188] [2022-11-02 21:10:44,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:44,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:10:44,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:10:44,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:10:44,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:10:44,927 INFO L87 Difference]: Start difference. First operand 2054 states and 2639 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-02 21:10:45,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:10:45,375 INFO L93 Difference]: Finished difference Result 3982 states and 5114 transitions. [2022-11-02 21:10:45,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:10:45,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 152 [2022-11-02 21:10:45,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:10:45,384 INFO L225 Difference]: With dead ends: 3982 [2022-11-02 21:10:45,384 INFO L226 Difference]: Without dead ends: 2668 [2022-11-02 21:10:45,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:10:45,388 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 84 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:10:45,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 296 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:10:45,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2668 states. [2022-11-02 21:10:45,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2668 to 2126. [2022-11-02 21:10:45,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2126 states, 2026 states have (on average 1.2472852912142152) internal successors, (2527), 2026 states have internal predecessors, (2527), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2022-11-02 21:10:45,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2126 states to 2126 states and 2723 transitions. [2022-11-02 21:10:45,691 INFO L78 Accepts]: Start accepts. Automaton has 2126 states and 2723 transitions. Word has length 152 [2022-11-02 21:10:45,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:10:45,692 INFO L495 AbstractCegarLoop]: Abstraction has 2126 states and 2723 transitions. [2022-11-02 21:10:45,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-02 21:10:45,695 INFO L276 IsEmpty]: Start isEmpty. Operand 2126 states and 2723 transitions. [2022-11-02 21:10:45,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-02 21:10:45,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:10:45,701 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:45,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-02 21:10:45,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:10:45,918 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:10:45,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:45,919 INFO L85 PathProgramCache]: Analyzing trace with hash -833696411, now seen corresponding path program 1 times [2022-11-02 21:10:45,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:10:45,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1880768132] [2022-11-02 21:10:45,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:45,920 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:10:45,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:10:45,921 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:10:45,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-02 21:10:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:46,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 104 conjunts are in the unsatisfiable core [2022-11-02 21:10:46,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:10:56,312 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 12 proven. 104 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-11-02 21:10:56,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:10:57,041 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:10:57,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1880768132] [2022-11-02 21:10:57,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1880768132] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:10:57,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2016210523] [2022-11-02 21:10:57,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:57,042 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-02 21:10:57,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 [2022-11-02 21:10:57,043 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-02 21:10:57,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2022-11-02 21:10:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:58,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 107 conjunts are in the unsatisfiable core [2022-11-02 21:10:58,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:11:11,469 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 12 proven. 104 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-11-02 21:11:11,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:11:11,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2016210523] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:11:11,511 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:11:11,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 47 [2022-11-02 21:11:11,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771073788] [2022-11-02 21:11:11,511 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:11:11,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-11-02 21:11:11,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:11:11,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-11-02 21:11:11,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=2397, Unknown=0, NotChecked=0, Total=2550 [2022-11-02 21:11:11,514 INFO L87 Difference]: Start difference. First operand 2126 states and 2723 transitions. Second operand has 47 states, 47 states have (on average 3.8297872340425534) internal successors, (180), 47 states have internal predecessors, (180), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-02 21:11:22,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:22,477 INFO L93 Difference]: Finished difference Result 6400 states and 8097 transitions. [2022-11-02 21:11:22,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-02 21:11:22,478 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 3.8297872340425534) internal successors, (180), 47 states have internal predecessors, (180), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 152 [2022-11-02 21:11:22,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:22,497 INFO L225 Difference]: With dead ends: 6400 [2022-11-02 21:11:22,498 INFO L226 Difference]: Without dead ends: 5498 [2022-11-02 21:11:22,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1895 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=1350, Invalid=7206, Unknown=0, NotChecked=0, Total=8556 [2022-11-02 21:11:22,503 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 1152 mSDsluCounter, 3151 mSDsCounter, 0 mSdLazyCounter, 1632 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1152 SdHoareTripleChecker+Valid, 3295 SdHoareTripleChecker+Invalid, 2562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 1632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 700 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:22,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1152 Valid, 3295 Invalid, 2562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 1632 Invalid, 0 Unknown, 700 Unchecked, 3.4s Time] [2022-11-02 21:11:22,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5498 states. [2022-11-02 21:11:22,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5498 to 2874. [2022-11-02 21:11:22,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2874 states, 2742 states have (on average 1.2283005105762217) internal successors, (3368), 2742 states have internal predecessors, (3368), 130 states have call successors, (130), 1 states have call predecessors, (130), 1 states have return successors, (130), 130 states have call predecessors, (130), 130 states have call successors, (130) [2022-11-02 21:11:22,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2874 states to 2874 states and 3628 transitions. [2022-11-02 21:11:22,923 INFO L78 Accepts]: Start accepts. Automaton has 2874 states and 3628 transitions. Word has length 152 [2022-11-02 21:11:22,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:22,924 INFO L495 AbstractCegarLoop]: Abstraction has 2874 states and 3628 transitions. [2022-11-02 21:11:22,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 3.8297872340425534) internal successors, (180), 47 states have internal predecessors, (180), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-02 21:11:22,924 INFO L276 IsEmpty]: Start isEmpty. Operand 2874 states and 3628 transitions. [2022-11-02 21:11:22,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-02 21:11:22,932 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:22,932 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:22,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-11-02 21:11:23,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0 [2022-11-02 21:11:23,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt [2022-11-02 21:11:23,348 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:23,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:23,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1700301339, now seen corresponding path program 1 times [2022-11-02 21:11:23,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:11:23,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1926987347] [2022-11-02 21:11:23,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:23,349 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:11:23,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:11:23,351 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:11:23,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-02 21:11:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:23,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 104 conjunts are in the unsatisfiable core [2022-11-02 21:11:23,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:11:36,268 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 12 proven. 104 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-11-02 21:11:36,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:11:37,102 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:11:37,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1926987347] [2022-11-02 21:11:37,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1926987347] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:11:37,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1358081678] [2022-11-02 21:11:37,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:37,103 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-02 21:11:37,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 [2022-11-02 21:11:37,104 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-02 21:11:37,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89abb637-2797-4b98-9086-c9642ecfdc44/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2022-11-02 21:11:38,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:38,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-02 21:11:38,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:11:41,899 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 6 proven. 135 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-02 21:11:41,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:11:44,053 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 6 proven. 135 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-02 21:11:44,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1358081678] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:11:44,053 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:11:44,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 13, 11] total 43 [2022-11-02 21:11:44,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006076095] [2022-11-02 21:11:44,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:11:44,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-11-02 21:11:44,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:11:44,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-11-02 21:11:44,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1940, Unknown=0, NotChecked=0, Total=2070 [2022-11-02 21:11:44,057 INFO L87 Difference]: Start difference. First operand 2874 states and 3628 transitions. Second operand has 43 states, 43 states have (on average 7.116279069767442) internal successors, (306), 43 states have internal predecessors, (306), 11 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 11 states have call predecessors, (22), 11 states have call successors, (22)