./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_two.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_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/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_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_two.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/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_847c46a6-3b1e-48d1-aec0-908acf19a9c2/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 16d0a229e446ebb3f7632dc27a51dec3b716b02668fde06be2a0b6ed60024488 --- 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 21:02:53,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:02:53,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:02:53,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:02:53,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:02:53,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:02:53,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:02:53,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:02:53,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:02:53,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:02:53,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:02:53,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:02:53,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:02:53,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:02:53,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:02:53,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:02:53,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:02:53,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:02:53,779 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:02:53,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:02:53,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:02:53,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:02:53,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:02:53,794 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:02:53,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:02:53,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:02:53,803 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:02:53,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:02:53,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:02:53,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:02:53,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:02:53,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:02:53,813 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:02:53,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:02:53,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:02:53,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:02:53,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:02:53,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:02:53,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:02:53,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:02:53,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:02:53,820 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 21:02:53,861 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:02:53,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:02:53,863 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:02:53,863 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:02:53,864 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:02:53,865 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:02:53,865 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:02:53,866 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:02:53,866 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:02:53,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:02:53,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:02:53,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:02:53,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:02:53,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:02:53,869 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:02:53,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:02:53,870 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:02:53,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:02:53,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:02:53,871 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:02:53,872 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:02:53,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:02:53,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:02:53,873 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:02:53,873 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:02:53,873 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:02:53,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:02:53,874 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:02:53,874 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:02:53,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:02:53,875 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_847c46a6-3b1e-48d1-aec0-908acf19a9c2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16d0a229e446ebb3f7632dc27a51dec3b716b02668fde06be2a0b6ed60024488 [2022-11-02 21:02:54,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:02:54,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:02:54,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:02:54,206 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:02:54,209 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:02:54,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_two.c [2022-11-02 21:02:54,288 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/data/8bb82deb7/f53cf6fb6fb643c1b02a8809a54912f7/FLAG2bfb011ce [2022-11-02 21:02:55,038 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:02:55,039 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_two.c [2022-11-02 21:02:55,061 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/data/8bb82deb7/f53cf6fb6fb643c1b02a8809a54912f7/FLAG2bfb011ce [2022-11-02 21:02:55,229 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/data/8bb82deb7/f53cf6fb6fb643c1b02a8809a54912f7 [2022-11-02 21:02:55,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:02:55,237 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:02:55,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:02:55,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:02:55,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:02:55,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:02:55" (1/1) ... [2022-11-02 21:02:55,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@141ccba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:55, skipping insertion in model container [2022-11-02 21:02:55,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:02:55" (1/1) ... [2022-11-02 21:02:55,259 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:02:55,358 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:02:55,582 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_847c46a6-3b1e-48d1-aec0-908acf19a9c2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_two.c[1107,1120] [2022-11-02 21:02:56,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:02:56,080 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:02:56,093 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_847c46a6-3b1e-48d1-aec0-908acf19a9c2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_two.c[1107,1120] [2022-11-02 21:02:56,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:02:56,268 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:02:56,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56 WrapperNode [2022-11-02 21:02:56,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:02:56,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:02:56,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:02:56,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:02:56,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56" (1/1) ... [2022-11-02 21:02:56,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56" (1/1) ... [2022-11-02 21:02:56,566 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2782 [2022-11-02 21:02:56,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:02:56,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:02:56,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:02:56,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:02:56,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56" (1/1) ... [2022-11-02 21:02:56,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56" (1/1) ... [2022-11-02 21:02:56,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56" (1/1) ... [2022-11-02 21:02:56,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56" (1/1) ... [2022-11-02 21:02:56,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56" (1/1) ... [2022-11-02 21:02:56,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56" (1/1) ... [2022-11-02 21:02:56,764 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56" (1/1) ... [2022-11-02 21:02:56,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56" (1/1) ... [2022-11-02 21:02:56,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:02:56,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:02:56,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:02:56,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:02:56,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56" (1/1) ... [2022-11-02 21:02:56,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:02:56,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:02:56,858 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:02:56,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:02:56,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:02:56,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:02:57,583 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:02:57,586 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:03:01,134 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:03:01,147 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:03:01,148 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 21:03:01,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:03:01 BoogieIcfgContainer [2022-11-02 21:03:01,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:03:01,153 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:03:01,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:03:01,157 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:03:01,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:02:55" (1/3) ... [2022-11-02 21:03:01,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e46210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:03:01, skipping insertion in model container [2022-11-02 21:03:01,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56" (2/3) ... [2022-11-02 21:03:01,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e46210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:03:01, skipping insertion in model container [2022-11-02 21:03:01,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:03:01" (3/3) ... [2022-11-02 21:03:01,161 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cache_coherence_two.c [2022-11-02 21:03:01,180 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:03:01,181 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 21:03:01,241 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:03:01,248 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;@18bb6cb3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:03:01,249 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 21:03:01,255 INFO L276 IsEmpty]: Start isEmpty. Operand has 423 states, 421 states have (on average 1.498812351543943) internal successors, (631), 422 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:01,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 21:03:01,263 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:03:01,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:01,265 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:03:01,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:01,271 INFO L85 PathProgramCache]: Analyzing trace with hash 930684715, now seen corresponding path program 1 times [2022-11-02 21:03:01,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:01,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475521849] [2022-11-02 21:03:01,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:01,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:03,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:03:03,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:03,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475521849] [2022-11-02 21:03:03,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475521849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:03,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:03:03,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:03:03,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126965854] [2022-11-02 21:03:03,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:03,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:03:03,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:03,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:03:03,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:03:03,718 INFO L87 Difference]: Start difference. First operand has 423 states, 421 states have (on average 1.498812351543943) internal successors, (631), 422 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:05,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:03:05,002 INFO L93 Difference]: Finished difference Result 1270 states and 1903 transitions. [2022-11-02 21:03:05,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:03:05,005 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-02 21:03:05,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:03:05,022 INFO L225 Difference]: With dead ends: 1270 [2022-11-02 21:03:05,022 INFO L226 Difference]: Without dead ends: 849 [2022-11-02 21:03:05,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 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 21:03:05,032 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 3076 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3076 SdHoareTripleChecker+Valid, 1861 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:03:05,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3076 Valid, 1861 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-02 21:03:05,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2022-11-02 21:03:05,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 421. [2022-11-02 21:03:05,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.4928571428571429) internal successors, (627), 420 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:05,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 627 transitions. [2022-11-02 21:03:05,112 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 627 transitions. Word has length 23 [2022-11-02 21:03:05,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:03:05,113 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 627 transitions. [2022-11-02 21:03:05,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:05,113 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 627 transitions. [2022-11-02 21:03:05,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 21:03:05,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:03:05,114 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:05,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:03:05,114 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:03:05,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:05,115 INFO L85 PathProgramCache]: Analyzing trace with hash 121338089, now seen corresponding path program 1 times [2022-11-02 21:03:05,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:05,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399550034] [2022-11-02 21:03:05,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:05,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:07,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:03:07,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:07,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399550034] [2022-11-02 21:03:07,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399550034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:07,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:03:07,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:03:07,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510150524] [2022-11-02 21:03:07,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:07,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:03:07,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:07,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:03:07,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:03:07,320 INFO L87 Difference]: Start difference. First operand 421 states and 627 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:09,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:03:09,061 INFO L93 Difference]: Finished difference Result 1260 states and 1878 transitions. [2022-11-02 21:03:09,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:03:09,066 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-02 21:03:09,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:03:09,069 INFO L225 Difference]: With dead ends: 1260 [2022-11-02 21:03:09,069 INFO L226 Difference]: Without dead ends: 841 [2022-11-02 21:03:09,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:03:09,072 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 1242 mSDsluCounter, 1204 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1242 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-02 21:03:09,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1242 Valid, 1789 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-02 21:03:09,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2022-11-02 21:03:09,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 423. [2022-11-02 21:03:09,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 422 states have (on average 1.490521327014218) internal successors, (629), 422 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:09,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 629 transitions. [2022-11-02 21:03:09,113 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 629 transitions. Word has length 23 [2022-11-02 21:03:09,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:03:09,113 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 629 transitions. [2022-11-02 21:03:09,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:09,115 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 629 transitions. [2022-11-02 21:03:09,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 21:03:09,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:03:09,117 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:09,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:03:09,117 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:03:09,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:09,119 INFO L85 PathProgramCache]: Analyzing trace with hash -696310361, now seen corresponding path program 1 times [2022-11-02 21:03:09,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:09,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224407608] [2022-11-02 21:03:09,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:09,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:09,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:10,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:03:10,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:10,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224407608] [2022-11-02 21:03:10,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224407608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:10,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:03:10,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:03:10,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564934062] [2022-11-02 21:03:10,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:10,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:03:10,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:10,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:03:10,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:03:10,528 INFO L87 Difference]: Start difference. First operand 423 states and 629 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:12,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:03:12,147 INFO L93 Difference]: Finished difference Result 1262 states and 1880 transitions. [2022-11-02 21:03:12,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:03:12,152 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-02 21:03:12,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:03:12,155 INFO L225 Difference]: With dead ends: 1262 [2022-11-02 21:03:12,156 INFO L226 Difference]: Without dead ends: 843 [2022-11-02 21:03:12,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:03:12,158 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 1239 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1239 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:03:12,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1239 Valid, 1790 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-02 21:03:12,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2022-11-02 21:03:12,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 425. [2022-11-02 21:03:12,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 424 states have (on average 1.4882075471698113) internal successors, (631), 424 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:12,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 631 transitions. [2022-11-02 21:03:12,183 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 631 transitions. Word has length 23 [2022-11-02 21:03:12,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:03:12,183 INFO L495 AbstractCegarLoop]: Abstraction has 425 states and 631 transitions. [2022-11-02 21:03:12,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:12,184 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 631 transitions. [2022-11-02 21:03:12,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 21:03:12,185 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:03:12,185 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:12,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:03:12,185 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:03:12,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:12,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1604512229, now seen corresponding path program 1 times [2022-11-02 21:03:12,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:12,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542538033] [2022-11-02 21:03:12,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:12,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:15,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:03:15,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:15,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542538033] [2022-11-02 21:03:15,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542538033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:15,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:03:15,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:03:15,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224680946] [2022-11-02 21:03:15,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:15,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:03:15,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:15,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:03:15,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:03:15,908 INFO L87 Difference]: Start difference. First operand 425 states and 631 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:18,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:03:18,674 INFO L93 Difference]: Finished difference Result 1266 states and 1885 transitions. [2022-11-02 21:03:18,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:03:18,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-02 21:03:18,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:03:18,678 INFO L225 Difference]: With dead ends: 1266 [2022-11-02 21:03:18,678 INFO L226 Difference]: Without dead ends: 847 [2022-11-02 21:03:18,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 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 21:03:18,681 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 1856 mSDsluCounter, 1810 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1856 SdHoareTripleChecker+Valid, 2390 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-02 21:03:18,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1856 Valid, 2390 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-02 21:03:18,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2022-11-02 21:03:18,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 429. [2022-11-02 21:03:18,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 428 states have (on average 1.485981308411215) internal successors, (636), 428 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:18,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 636 transitions. [2022-11-02 21:03:18,698 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 636 transitions. Word has length 23 [2022-11-02 21:03:18,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:03:18,698 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 636 transitions. [2022-11-02 21:03:18,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:18,698 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 636 transitions. [2022-11-02 21:03:18,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 21:03:18,699 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:03:18,699 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:18,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:03:18,700 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:03:18,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:18,701 INFO L85 PathProgramCache]: Analyzing trace with hash 593394979, now seen corresponding path program 1 times [2022-11-02 21:03:18,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:18,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848479233] [2022-11-02 21:03:18,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:18,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:22,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:03:22,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:22,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848479233] [2022-11-02 21:03:22,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848479233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:22,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:03:22,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:03:22,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023263882] [2022-11-02 21:03:22,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:22,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:03:22,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:22,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:03:22,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:03:22,228 INFO L87 Difference]: Start difference. First operand 429 states and 636 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:25,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:03:25,116 INFO L93 Difference]: Finished difference Result 1268 states and 1888 transitions. [2022-11-02 21:03:25,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:03:25,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-02 21:03:25,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:03:25,121 INFO L225 Difference]: With dead ends: 1268 [2022-11-02 21:03:25,121 INFO L226 Difference]: Without dead ends: 849 [2022-11-02 21:03:25,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 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 21:03:25,124 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 1851 mSDsluCounter, 1794 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1851 SdHoareTripleChecker+Valid, 2361 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-02 21:03:25,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1851 Valid, 2361 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-02 21:03:25,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2022-11-02 21:03:25,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 433. [2022-11-02 21:03:25,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 432 states have (on average 1.4837962962962963) internal successors, (641), 432 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:25,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 641 transitions. [2022-11-02 21:03:25,140 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 641 transitions. Word has length 23 [2022-11-02 21:03:25,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:03:25,140 INFO L495 AbstractCegarLoop]: Abstraction has 433 states and 641 transitions. [2022-11-02 21:03:25,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:25,141 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 641 transitions. [2022-11-02 21:03:25,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 21:03:25,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:03:25,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:25,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:03:25,142 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:03:25,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:25,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1009714595, now seen corresponding path program 1 times [2022-11-02 21:03:25,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:25,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417421567] [2022-11-02 21:03:25,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:25,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:26,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:28,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:03:28,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:28,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417421567] [2022-11-02 21:03:28,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417421567] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:28,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:03:28,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:03:28,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037609760] [2022-11-02 21:03:28,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:28,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:03:28,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:28,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:03:28,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:03:28,765 INFO L87 Difference]: Start difference. First operand 433 states and 641 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:30,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:03:30,979 INFO L93 Difference]: Finished difference Result 1276 states and 1898 transitions. [2022-11-02 21:03:30,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:03:30,980 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-02 21:03:30,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:03:30,983 INFO L225 Difference]: With dead ends: 1276 [2022-11-02 21:03:30,983 INFO L226 Difference]: Without dead ends: 857 [2022-11-02 21:03:30,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 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 21:03:30,984 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 1843 mSDsluCounter, 1808 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1843 SdHoareTripleChecker+Valid, 2401 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:03:30,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1843 Valid, 2401 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-02 21:03:30,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2022-11-02 21:03:30,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 439. [2022-11-02 21:03:30,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 438 states have (on average 1.4817351598173516) internal successors, (649), 438 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:31,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 649 transitions. [2022-11-02 21:03:31,001 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 649 transitions. Word has length 23 [2022-11-02 21:03:31,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:03:31,001 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 649 transitions. [2022-11-02 21:03:31,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:31,002 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 649 transitions. [2022-11-02 21:03:31,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 21:03:31,002 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:03:31,003 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:31,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 21:03:31,003 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:03:31,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:31,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1009774177, now seen corresponding path program 1 times [2022-11-02 21:03:31,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:31,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524045994] [2022-11-02 21:03:31,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:31,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:39,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:03:39,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:39,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524045994] [2022-11-02 21:03:39,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524045994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:39,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:03:39,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:03:39,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626748500] [2022-11-02 21:03:39,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:39,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:03:39,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:39,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:03:39,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:03:39,141 INFO L87 Difference]: Start difference. First operand 439 states and 649 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:41,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:03:41,066 INFO L93 Difference]: Finished difference Result 1274 states and 1893 transitions. [2022-11-02 21:03:41,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:03:41,066 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-02 21:03:41,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:03:41,070 INFO L225 Difference]: With dead ends: 1274 [2022-11-02 21:03:41,070 INFO L226 Difference]: Without dead ends: 847 [2022-11-02 21:03:41,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:03:41,072 INFO L413 NwaCegarLoop]: 594 mSDtfsCounter, 1227 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-02 21:03:41,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1227 Valid, 1797 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-02 21:03:41,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2022-11-02 21:03:41,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 439. [2022-11-02 21:03:41,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 438 states have (on average 1.4794520547945205) internal successors, (648), 438 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:41,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 648 transitions. [2022-11-02 21:03:41,088 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 648 transitions. Word has length 23 [2022-11-02 21:03:41,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:03:41,089 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 648 transitions. [2022-11-02 21:03:41,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:41,089 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 648 transitions. [2022-11-02 21:03:41,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 21:03:41,090 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:03:41,090 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:41,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 21:03:41,090 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:03:41,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:41,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1267939615, now seen corresponding path program 1 times [2022-11-02 21:03:41,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:41,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849116171] [2022-11-02 21:03:41,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:41,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:41,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:42,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:03:42,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:42,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849116171] [2022-11-02 21:03:42,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849116171] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:42,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:03:42,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:03:42,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641313293] [2022-11-02 21:03:42,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:42,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:03:42,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:42,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:03:42,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:03:42,178 INFO L87 Difference]: Start difference. First operand 439 states and 648 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:43,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:03:43,875 INFO L93 Difference]: Finished difference Result 1704 states and 2532 transitions. [2022-11-02 21:03:43,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:03:43,875 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-02 21:03:43,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:03:43,880 INFO L225 Difference]: With dead ends: 1704 [2022-11-02 21:03:43,880 INFO L226 Difference]: Without dead ends: 1281 [2022-11-02 21:03:43,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2022-11-02 21:03:43,882 INFO L413 NwaCegarLoop]: 617 mSDtfsCounter, 4323 mSDsluCounter, 3057 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4323 SdHoareTripleChecker+Valid, 3674 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:03:43,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4323 Valid, 3674 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-02 21:03:43,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2022-11-02 21:03:43,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 441. [2022-11-02 21:03:43,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 440 states have (on average 1.4772727272727273) internal successors, (650), 440 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:43,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 650 transitions. [2022-11-02 21:03:43,901 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 650 transitions. Word has length 23 [2022-11-02 21:03:43,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:03:43,903 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 650 transitions. [2022-11-02 21:03:43,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:43,904 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 650 transitions. [2022-11-02 21:03:43,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 21:03:43,907 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:03:43,907 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:43,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 21:03:43,908 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:03:43,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:43,908 INFO L85 PathProgramCache]: Analyzing trace with hash 458592989, now seen corresponding path program 1 times [2022-11-02 21:03:43,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:43,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165503160] [2022-11-02 21:03:43,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:43,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:45,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:03:45,072 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:03:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:03:46,855 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:03:46,856 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 21:03:46,857 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 21:03:46,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 21:03:46,869 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:46,875 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 21:03:47,026 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 21:03:47,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:03:47 BoogieIcfgContainer [2022-11-02 21:03:47,051 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 21:03:47,052 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 21:03:47,052 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 21:03:47,052 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 21:03:47,053 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:03:01" (3/4) ... [2022-11-02 21:03:47,057 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 21:03:47,057 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 21:03:47,058 INFO L158 Benchmark]: Toolchain (without parser) took 51821.25ms. Allocated memory was 111.1MB in the beginning and 901.8MB in the end (delta: 790.6MB). Free memory was 71.4MB in the beginning and 759.4MB in the end (delta: -687.9MB). Peak memory consumption was 100.8MB. Max. memory is 16.1GB. [2022-11-02 21:03:47,058 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 111.1MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:03:47,059 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1026.23ms. Allocated memory is still 111.1MB. Free memory was 71.2MB in the beginning and 68.1MB in the end (delta: 3.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-02 21:03:47,059 INFO L158 Benchmark]: Boogie Procedure Inliner took 296.56ms. Allocated memory was 111.1MB in the beginning and 165.7MB in the end (delta: 54.5MB). Free memory was 68.1MB in the beginning and 112.7MB in the end (delta: -44.6MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. [2022-11-02 21:03:47,060 INFO L158 Benchmark]: Boogie Preprocessor took 251.21ms. Allocated memory is still 165.7MB. Free memory was 112.7MB in the beginning and 97.3MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-02 21:03:47,060 INFO L158 Benchmark]: RCFGBuilder took 4331.51ms. Allocated memory was 165.7MB in the beginning and 255.9MB in the end (delta: 90.2MB). Free memory was 97.3MB in the beginning and 85.1MB in the end (delta: 12.2MB). Peak memory consumption was 113.9MB. Max. memory is 16.1GB. [2022-11-02 21:03:47,061 INFO L158 Benchmark]: TraceAbstraction took 45898.61ms. Allocated memory was 255.9MB in the beginning and 901.8MB in the end (delta: 645.9MB). Free memory was 84.1MB in the beginning and 759.4MB in the end (delta: -675.3MB). Peak memory consumption was 441.7MB. Max. memory is 16.1GB. [2022-11-02 21:03:47,061 INFO L158 Benchmark]: Witness Printer took 5.33ms. Allocated memory is still 901.8MB. Free memory is still 759.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:03:47,063 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 111.1MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1026.23ms. Allocated memory is still 111.1MB. Free memory was 71.2MB in the beginning and 68.1MB in the end (delta: 3.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 296.56ms. Allocated memory was 111.1MB in the beginning and 165.7MB in the end (delta: 54.5MB). Free memory was 68.1MB in the beginning and 112.7MB in the end (delta: -44.6MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 251.21ms. Allocated memory is still 165.7MB. Free memory was 112.7MB in the beginning and 97.3MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * RCFGBuilder took 4331.51ms. Allocated memory was 165.7MB in the beginning and 255.9MB in the end (delta: 90.2MB). Free memory was 97.3MB in the beginning and 85.1MB in the end (delta: 12.2MB). Peak memory consumption was 113.9MB. Max. memory is 16.1GB. * TraceAbstraction took 45898.61ms. Allocated memory was 255.9MB in the beginning and 901.8MB in the end (delta: 645.9MB). Free memory was 84.1MB in the beginning and 759.4MB in the end (delta: -675.3MB). Peak memory consumption was 441.7MB. Max. memory is 16.1GB. * Witness Printer took 5.33ms. Allocated memory is still 901.8MB. Free memory is still 759.4MB. 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 bitwiseComplement at line 418, overapproximation of bitwiseOr at line 413, overapproximation of bitwiseAnd at line 410. 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_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 32); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (32 - 1); [L31] const SORT_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 2); [L32] const SORT_6 msb_SORT_6 = (SORT_6)1 << (2 - 1); [L34] const SORT_38 mask_SORT_38 = (SORT_38)-1 >> (sizeof(SORT_38) * 8 - 31); [L35] const SORT_38 msb_SORT_38 = (SORT_38)1 << (31 - 1); [L37] const SORT_45 mask_SORT_45 = (SORT_45)-1 >> (sizeof(SORT_45) * 8 - 3); [L38] const SORT_45 msb_SORT_45 = (SORT_45)1 << (3 - 1); [L40] const SORT_3 var_4 = 0; [L41] const SORT_3 var_5 = 1; [L42] const SORT_6 var_7 = 2; [L43] const SORT_6 var_10 = 1; [L44] const SORT_1 var_32 = 1; [L45] const SORT_1 var_33 = 0; [L46] const SORT_38 var_39 = 0; [L47] const SORT_6 var_41 = 0; [L48] const SORT_45 var_46 = 0; [L49] const SORT_45 var_50 = 1; [L50] const SORT_45 var_56 = 4; [L51] const SORT_45 var_58 = 5; [L52] const SORT_45 var_76 = 2; [L53] const SORT_45 var_86 = 3; [L55] SORT_1 input_2; [L56] SORT_45 input_451; [L57] SORT_45 input_572; [L59] SORT_6 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_6; [L60] SORT_6 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_6; [L61] SORT_1 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L62] SORT_6 state_42 = __VERIFIER_nondet_uchar() & mask_SORT_6; [L63] SORT_45 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_45; [L64] SORT_1 state_72 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L65] SORT_6 state_98 = __VERIFIER_nondet_uchar() & mask_SORT_6; [L66] SORT_1 state_129 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L67] SORT_1 state_131 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L68] SORT_1 state_141 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L69] SORT_1 state_143 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L70] SORT_1 state_145 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L71] SORT_1 state_147 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L72] SORT_45 state_149 = __VERIFIER_nondet_uchar() & mask_SORT_45; [L73] SORT_1 state_154 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L74] SORT_1 state_168 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] SORT_45 state_170 = __VERIFIER_nondet_uchar() & mask_SORT_45; [L76] SORT_1 state_172 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] SORT_1 state_174 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] SORT_1 state_176 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] SORT_1 state_178 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] SORT_1 state_180 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] SORT_1 state_182 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] SORT_45 state_184 = __VERIFIER_nondet_uchar() & mask_SORT_45; [L83] SORT_1 state_189 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] SORT_1 state_203 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] SORT_45 state_205 = __VERIFIER_nondet_uchar() & mask_SORT_45; [L86] SORT_1 state_207 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] SORT_1 state_209 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] SORT_6 init_9_arg_1 = var_7; [L90] state_8 = init_9_arg_1 [L91] SORT_6 init_18_arg_1 = var_7; [L92] state_17 = init_18_arg_1 [L93] SORT_1 init_35_arg_1 = var_33; [L94] state_34 = init_35_arg_1 [L95] SORT_6 init_43_arg_1 = var_41; [L96] state_42 = init_43_arg_1 [L97] SORT_45 init_48_arg_1 = var_46; [L98] state_47 = init_48_arg_1 [L99] SORT_1 init_73_arg_1 = var_33; [L100] state_72 = init_73_arg_1 [L101] SORT_6 init_99_arg_1 = var_41; [L102] state_98 = init_99_arg_1 [L103] SORT_1 init_130_arg_1 = var_33; [L104] state_129 = init_130_arg_1 [L105] SORT_1 init_132_arg_1 = var_33; [L106] state_131 = init_132_arg_1 [L107] SORT_1 init_142_arg_1 = var_33; [L108] state_141 = init_142_arg_1 [L109] SORT_1 init_144_arg_1 = var_33; [L110] state_143 = init_144_arg_1 [L111] SORT_1 init_146_arg_1 = var_33; [L112] state_145 = init_146_arg_1 [L113] SORT_1 init_148_arg_1 = var_32; [L114] state_147 = init_148_arg_1 [L115] SORT_45 init_150_arg_1 = var_58; [L116] state_149 = init_150_arg_1 [L117] SORT_1 init_155_arg_1 = var_32; [L118] state_154 = init_155_arg_1 [L119] SORT_1 init_169_arg_1 = var_32; [L120] state_168 = init_169_arg_1 [L121] SORT_45 init_171_arg_1 = var_76; [L122] state_170 = init_171_arg_1 [L123] SORT_1 init_173_arg_1 = var_33; [L124] state_172 = init_173_arg_1 [L125] SORT_1 init_175_arg_1 = var_33; [L126] state_174 = init_175_arg_1 [L127] SORT_1 init_177_arg_1 = var_33; [L128] state_176 = init_177_arg_1 [L129] SORT_1 init_179_arg_1 = var_33; [L130] state_178 = init_179_arg_1 [L131] SORT_1 init_181_arg_1 = var_33; [L132] state_180 = init_181_arg_1 [L133] SORT_1 init_183_arg_1 = var_32; [L134] state_182 = init_183_arg_1 [L135] SORT_45 init_185_arg_1 = var_58; [L136] state_184 = init_185_arg_1 [L137] SORT_1 init_190_arg_1 = var_32; [L138] state_189 = init_190_arg_1 [L139] SORT_1 init_204_arg_1 = var_32; [L140] state_203 = init_204_arg_1 [L141] SORT_45 init_206_arg_1 = var_76; [L142] state_205 = init_206_arg_1 [L143] SORT_1 init_208_arg_1 = var_33; [L144] state_207 = init_208_arg_1 [L145] SORT_1 init_210_arg_1 = var_33; [L146] state_209 = init_210_arg_1 VAL [init_130_arg_1=0, init_132_arg_1=0, init_142_arg_1=0, init_144_arg_1=0, init_146_arg_1=0, init_148_arg_1=1, init_150_arg_1=5, init_155_arg_1=1, init_169_arg_1=1, init_171_arg_1=2, init_173_arg_1=0, init_175_arg_1=0, init_177_arg_1=0, init_179_arg_1=0, init_181_arg_1=0, init_183_arg_1=1, init_185_arg_1=5, init_18_arg_1=2, init_190_arg_1=1, init_204_arg_1=1, init_206_arg_1=2, init_208_arg_1=0, init_210_arg_1=0, init_35_arg_1=0, init_43_arg_1=0, init_48_arg_1=0, init_73_arg_1=0, init_99_arg_1=0, init_9_arg_1=2, mask_SORT_1=1, mask_SORT_3=4294967295, mask_SORT_38=4294967295, mask_SORT_45=7, mask_SORT_6=3, msb_SORT_1=1, msb_SORT_3=2147483648, msb_SORT_38=1073741824, msb_SORT_45=4, msb_SORT_6=2, state_129=0, state_131=0, state_141=0, state_143=0, state_145=0, state_147=1, state_149=5, state_154=1, state_168=1, state_17=2, state_170=2, state_172=0, state_174=0, state_176=0, state_178=0, state_180=0, state_182=1, state_184=5, state_189=1, state_203=1, state_205=2, state_207=0, state_209=0, state_34=0, state_42=0, state_47=0, state_72=0, state_8=2, state_98=0, var_10=1, var_32=1, var_33=0, var_39=0, var_4=0, var_41=0, var_46=0, var_5=1, var_50=1, var_56=4, var_58=5, var_7=2, var_76=2, var_86=3] [L149] input_2 = __VERIFIER_nondet_uchar() [L150] input_451 = __VERIFIER_nondet_uchar() [L151] input_572 = __VERIFIER_nondet_uchar() [L154] SORT_6 var_11_arg_0 = state_8; [L155] SORT_6 var_11_arg_1 = var_10; [L156] SORT_1 var_11 = var_11_arg_0 == var_11_arg_1; [L157] SORT_1 var_12_arg_0 = var_11; [L158] SORT_3 var_12_arg_1 = var_5; [L159] SORT_3 var_12_arg_2 = var_4; VAL [init_130_arg_1=0, init_132_arg_1=0, init_142_arg_1=0, init_144_arg_1=0, init_146_arg_1=0, init_148_arg_1=1, init_150_arg_1=5, init_155_arg_1=1, init_169_arg_1=1, init_171_arg_1=2, init_173_arg_1=0, init_175_arg_1=0, init_177_arg_1=0, init_179_arg_1=0, init_181_arg_1=0, init_183_arg_1=1, init_185_arg_1=5, init_18_arg_1=2, init_190_arg_1=1, init_204_arg_1=1, init_206_arg_1=2, init_208_arg_1=0, init_210_arg_1=0, init_35_arg_1=0, init_43_arg_1=0, init_48_arg_1=0, init_73_arg_1=0, init_99_arg_1=0, init_9_arg_1=2, input_2=3, input_451=2, input_572=1, mask_SORT_1=1, mask_SORT_3=4294967295, mask_SORT_38=4294967295, mask_SORT_45=7, mask_SORT_6=3, msb_SORT_1=1, msb_SORT_3=2147483648, msb_SORT_38=1073741824, msb_SORT_45=4, msb_SORT_6=2, state_129=0, state_131=0, state_141=0, state_143=0, state_145=0, state_147=1, state_149=5, state_154=1, state_168=1, state_17=2, state_170=2, state_172=0, state_174=0, state_176=0, state_178=0, state_180=0, state_182=1, state_184=5, state_189=1, state_203=1, state_205=2, state_207=0, state_209=0, state_34=0, state_42=0, state_47=0, state_72=0, state_8=2, state_98=0, var_10=1, var_11=0, var_11_arg_0=2, var_11_arg_1=1, var_12_arg_0=0, var_12_arg_1=1, var_12_arg_2=0, var_32=1, var_33=0, var_39=0, var_4=0, var_41=0, var_46=0, var_5=1, var_50=1, var_56=4, var_58=5, var_7=2, var_76=2, var_86=3] [L160] EXPR var_12_arg_0 ? var_12_arg_1 : var_12_arg_2 VAL [init_130_arg_1=0, init_132_arg_1=0, init_142_arg_1=0, init_144_arg_1=0, init_146_arg_1=0, init_148_arg_1=1, init_150_arg_1=5, init_155_arg_1=1, init_169_arg_1=1, init_171_arg_1=2, init_173_arg_1=0, init_175_arg_1=0, init_177_arg_1=0, init_179_arg_1=0, init_181_arg_1=0, init_183_arg_1=1, init_185_arg_1=5, init_18_arg_1=2, init_190_arg_1=1, init_204_arg_1=1, init_206_arg_1=2, init_208_arg_1=0, init_210_arg_1=0, init_35_arg_1=0, init_43_arg_1=0, init_48_arg_1=0, init_73_arg_1=0, init_99_arg_1=0, init_9_arg_1=2, input_2=3, input_451=2, input_572=1, mask_SORT_1=1, mask_SORT_3=4294967295, mask_SORT_38=4294967295, mask_SORT_45=7, mask_SORT_6=3, msb_SORT_1=1, msb_SORT_3=2147483648, msb_SORT_38=1073741824, msb_SORT_45=4, msb_SORT_6=2, state_129=0, state_131=0, state_141=0, state_143=0, state_145=0, state_147=1, state_149=5, state_154=1, state_168=1, state_17=2, state_170=2, state_172=0, state_174=0, state_176=0, state_178=0, state_180=0, state_182=1, state_184=5, state_189=1, state_203=1, state_205=2, state_207=0, state_209=0, state_34=0, state_42=0, state_47=0, state_72=0, state_8=2, state_98=0, var_10=1, var_11=0, var_11_arg_0=2, var_11_arg_1=1, var_12_arg_0=0, var_12_arg_0 ? var_12_arg_1 : var_12_arg_2=0, var_12_arg_1=1, var_12_arg_2=0, var_32=1, var_33=0, var_39=0, var_4=0, var_41=0, var_46=0, var_5=1, var_50=1, var_56=4, var_58=5, var_7=2, var_76=2, var_86=3] [L160] SORT_3 var_12 = var_12_arg_0 ? var_12_arg_1 : var_12_arg_2; [L161] SORT_3 var_13_arg_0 = var_12; [L162] SORT_1 var_13 = var_13_arg_0 >> 0; [L163] SORT_1 var_14_arg_0 = var_13; [L164] var_14_arg_0 = var_14_arg_0 & mask_SORT_1 [L165] SORT_3 var_14 = var_14_arg_0; [L166] SORT_3 var_15_arg_0 = var_14; [L167] SORT_3 var_15_arg_1 = var_5; [L168] SORT_1 var_15 = var_15_arg_0 == var_15_arg_1; [L169] SORT_1 var_16_arg_0 = var_15; [L170] SORT_1 var_16 = ~var_16_arg_0; [L171] SORT_6 var_19_arg_0 = state_17; [L172] SORT_6 var_19_arg_1 = var_10; [L173] SORT_1 var_19 = var_19_arg_0 == var_19_arg_1; [L174] SORT_1 var_20_arg_0 = var_19; [L175] SORT_3 var_20_arg_1 = var_5; [L176] SORT_3 var_20_arg_2 = var_4; VAL [init_130_arg_1=0, init_132_arg_1=0, init_142_arg_1=0, init_144_arg_1=0, init_146_arg_1=0, init_148_arg_1=1, init_150_arg_1=5, init_155_arg_1=1, init_169_arg_1=1, init_171_arg_1=2, init_173_arg_1=0, init_175_arg_1=0, init_177_arg_1=0, init_179_arg_1=0, init_181_arg_1=0, init_183_arg_1=1, init_185_arg_1=5, init_18_arg_1=2, init_190_arg_1=1, init_204_arg_1=1, init_206_arg_1=2, init_208_arg_1=0, init_210_arg_1=0, init_35_arg_1=0, init_43_arg_1=0, init_48_arg_1=0, init_73_arg_1=0, init_99_arg_1=0, init_9_arg_1=2, input_2=3, input_451=2, input_572=1, mask_SORT_1=1, mask_SORT_3=4294967295, mask_SORT_38=4294967295, mask_SORT_45=7, mask_SORT_6=3, msb_SORT_1=1, msb_SORT_3=2147483648, msb_SORT_38=1073741824, msb_SORT_45=4, msb_SORT_6=2, state_129=0, state_131=0, state_141=0, state_143=0, state_145=0, state_147=1, state_149=5, state_154=1, state_168=1, state_17=2, state_170=2, state_172=0, state_174=0, state_176=0, state_178=0, state_180=0, state_182=1, state_184=5, state_189=1, state_203=1, state_205=2, state_207=0, state_209=0, state_34=0, state_42=0, state_47=0, state_72=0, state_8=2, state_98=0, var_10=1, var_11=0, var_11_arg_0=2, var_11_arg_1=1, var_12=0, var_12_arg_0=0, var_12_arg_1=1, var_12_arg_2=0, var_13=0, var_13_arg_0=0, var_14=0, var_14_arg_0=0, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16_arg_0=0, var_19=0, var_19_arg_0=2, var_19_arg_1=1, var_20_arg_0=0, var_20_arg_1=1, var_20_arg_2=0, var_32=1, var_33=0, var_39=0, var_4=0, var_41=0, var_46=0, var_5=1, var_50=1, var_56=4, var_58=5, var_7=2, var_76=2, var_86=3] [L177] EXPR var_20_arg_0 ? var_20_arg_1 : var_20_arg_2 VAL [init_130_arg_1=0, init_132_arg_1=0, init_142_arg_1=0, init_144_arg_1=0, init_146_arg_1=0, init_148_arg_1=1, init_150_arg_1=5, init_155_arg_1=1, init_169_arg_1=1, init_171_arg_1=2, init_173_arg_1=0, init_175_arg_1=0, init_177_arg_1=0, init_179_arg_1=0, init_181_arg_1=0, init_183_arg_1=1, init_185_arg_1=5, init_18_arg_1=2, init_190_arg_1=1, init_204_arg_1=1, init_206_arg_1=2, init_208_arg_1=0, init_210_arg_1=0, init_35_arg_1=0, init_43_arg_1=0, init_48_arg_1=0, init_73_arg_1=0, init_99_arg_1=0, init_9_arg_1=2, input_2=3, input_451=2, input_572=1, mask_SORT_1=1, mask_SORT_3=4294967295, mask_SORT_38=4294967295, mask_SORT_45=7, mask_SORT_6=3, msb_SORT_1=1, msb_SORT_3=2147483648, msb_SORT_38=1073741824, msb_SORT_45=4, msb_SORT_6=2, state_129=0, state_131=0, state_141=0, state_143=0, state_145=0, state_147=1, state_149=5, state_154=1, state_168=1, state_17=2, state_170=2, state_172=0, state_174=0, state_176=0, state_178=0, state_180=0, state_182=1, state_184=5, state_189=1, state_203=1, state_205=2, state_207=0, state_209=0, state_34=0, state_42=0, state_47=0, state_72=0, state_8=2, state_98=0, var_10=1, var_11=0, var_11_arg_0=2, var_11_arg_1=1, var_12=0, var_12_arg_0=0, var_12_arg_1=1, var_12_arg_2=0, var_13=0, var_13_arg_0=0, var_14=0, var_14_arg_0=0, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16_arg_0=0, var_19=0, var_19_arg_0=2, var_19_arg_1=1, var_20_arg_0=0, var_20_arg_0 ? var_20_arg_1 : var_20_arg_2=0, var_20_arg_1=1, var_20_arg_2=0, var_32=1, var_33=0, var_39=0, var_4=0, var_41=0, var_46=0, var_5=1, var_50=1, var_56=4, var_58=5, var_7=2, var_76=2, var_86=3] [L177] SORT_3 var_20 = var_20_arg_0 ? var_20_arg_1 : var_20_arg_2; [L178] SORT_3 var_21_arg_0 = var_20; [L179] SORT_1 var_21 = var_21_arg_0 >> 0; [L180] SORT_1 var_22_arg_0 = var_21; [L181] var_22_arg_0 = var_22_arg_0 & mask_SORT_1 [L182] SORT_3 var_22 = var_22_arg_0; [L183] SORT_3 var_23_arg_0 = var_22; [L184] SORT_3 var_23_arg_1 = var_5; [L185] SORT_1 var_23 = var_23_arg_0 == var_23_arg_1; [L186] SORT_1 var_24_arg_0 = var_16; [L187] SORT_1 var_24_arg_1 = var_23; [L188] SORT_1 var_24 = var_24_arg_0 | var_24_arg_1; [L189] SORT_1 var_25_arg_0 = var_21; [L190] var_25_arg_0 = var_25_arg_0 & mask_SORT_1 [L191] SORT_3 var_25 = var_25_arg_0; [L192] SORT_3 var_26_arg_0 = var_25; [L193] SORT_3 var_26_arg_1 = var_5; [L194] SORT_1 var_26 = var_26_arg_0 == var_26_arg_1; [L195] SORT_1 var_27_arg_0 = var_26; [L196] SORT_1 var_27 = ~var_27_arg_0; [L197] SORT_1 var_28_arg_0 = var_13; [L198] var_28_arg_0 = var_28_arg_0 & mask_SORT_1 [L199] SORT_3 var_28 = var_28_arg_0; [L200] SORT_3 var_29_arg_0 = var_28; [L201] SORT_3 var_29_arg_1 = var_5; [L202] SORT_1 var_29 = var_29_arg_0 == var_29_arg_1; [L203] SORT_1 var_30_arg_0 = var_27; [L204] SORT_1 var_30_arg_1 = var_29; [L205] SORT_1 var_30 = var_30_arg_0 | var_30_arg_1; [L206] SORT_1 var_31_arg_0 = var_24; [L207] SORT_1 var_31_arg_1 = var_30; [L208] SORT_1 var_31 = var_31_arg_0 & var_31_arg_1; [L209] SORT_45 var_64_arg_0 = state_47; [L210] SORT_45 var_64_arg_1 = var_50; [L211] SORT_1 var_64 = var_64_arg_0 == var_64_arg_1; [L212] SORT_6 var_65_arg_0 = state_42; [L213] SORT_6 var_65_arg_1 = var_10; [L214] SORT_1 var_65 = var_65_arg_0 == var_65_arg_1; [L215] SORT_1 var_66_arg_0 = var_64; [L216] SORT_1 var_66_arg_1 = var_65; [L217] SORT_1 var_66 = var_66_arg_0 | var_66_arg_1; [L218] var_66 = var_66 & mask_SORT_1 [L219] SORT_6 var_44_arg_0 = state_42; [L220] SORT_6 var_44_arg_1 = var_41; [L221] SORT_1 var_44 = var_44_arg_0 == var_44_arg_1; [L222] SORT_45 var_49_arg_0 = state_47; [L223] SORT_45 var_49_arg_1 = var_46; [L224] SORT_1 var_49 = var_49_arg_0 == var_49_arg_1; [L225] SORT_45 var_51_arg_0 = state_47; [L226] SORT_45 var_51_arg_1 = var_50; [L227] SORT_1 var_51 = var_51_arg_0 == var_51_arg_1; [L228] SORT_1 var_52_arg_0 = var_49; [L229] SORT_1 var_52_arg_1 = var_51; [L230] SORT_1 var_52 = var_52_arg_0 | var_52_arg_1; [L231] SORT_1 var_53_arg_0 = var_52; [L232] SORT_1 var_53 = ~var_53_arg_0; [L233] SORT_1 var_54_arg_0 = var_44; [L234] SORT_1 var_54_arg_1 = var_53; [L235] SORT_1 var_54 = var_54_arg_0 & var_54_arg_1; [L236] SORT_6 var_55_arg_0 = state_42; [L237] SORT_6 var_55_arg_1 = var_10; [L238] SORT_1 var_55 = var_55_arg_0 == var_55_arg_1; [L239] SORT_45 var_57_arg_0 = state_47; [L240] SORT_45 var_57_arg_1 = var_56; [L241] SORT_1 var_57 = var_57_arg_0 == var_57_arg_1; [L242] SORT_45 var_59_arg_0 = state_47; [L243] SORT_45 var_59_arg_1 = var_58; [L244] SORT_1 var_59 = var_59_arg_0 == var_59_arg_1; [L245] SORT_1 var_60_arg_0 = var_57; [L246] SORT_1 var_60_arg_1 = var_59; [L247] SORT_1 var_60 = var_60_arg_0 | var_60_arg_1; [L248] SORT_1 var_61_arg_0 = var_55; [L249] SORT_1 var_61_arg_1 = var_60; [L250] SORT_1 var_61 = var_61_arg_0 & var_61_arg_1; [L251] SORT_1 var_62_arg_0 = var_54; [L252] SORT_1 var_62_arg_1 = var_61; [L253] SORT_1 var_62 = var_62_arg_0 | var_62_arg_1; [L254] var_62 = var_62 & mask_SORT_1 [L255] SORT_1 var_36_arg_0 = state_34; [L256] SORT_1 var_36 = ~var_36_arg_0; [L257] SORT_1 var_37_arg_0 = var_32; [L258] SORT_1 var_37_arg_1 = var_36; [L259] SORT_1 var_37 = var_37_arg_0 & var_37_arg_1; [L260] var_37 = var_37 & mask_SORT_1 [L261] SORT_38 var_40_arg_0 = var_39; [L262] SORT_1 var_40_arg_1 = var_37; [L263] SORT_3 var_40 = ((SORT_3)var_40_arg_0 << 1) | var_40_arg_1; [L264] SORT_1 var_63_arg_0 = var_62; [L265] SORT_3 var_63_arg_1 = var_40; [L266] SORT_3 var_63_arg_2 = var_4; VAL [init_130_arg_1=0, init_132_arg_1=0, init_142_arg_1=0, init_144_arg_1=0, init_146_arg_1=0, init_148_arg_1=1, init_150_arg_1=5, init_155_arg_1=1, init_169_arg_1=1, init_171_arg_1=2, init_173_arg_1=0, init_175_arg_1=0, init_177_arg_1=0, init_179_arg_1=0, init_181_arg_1=0, init_183_arg_1=1, init_185_arg_1=5, init_18_arg_1=2, init_190_arg_1=1, init_204_arg_1=1, init_206_arg_1=2, init_208_arg_1=0, init_210_arg_1=0, init_35_arg_1=0, init_43_arg_1=0, init_48_arg_1=0, init_73_arg_1=0, init_99_arg_1=0, init_9_arg_1=2, input_2=3, input_451=2, input_572=1, mask_SORT_1=1, mask_SORT_3=4294967295, mask_SORT_38=4294967295, mask_SORT_45=7, mask_SORT_6=3, msb_SORT_1=1, msb_SORT_3=2147483648, msb_SORT_38=1073741824, msb_SORT_45=4, msb_SORT_6=2, state_129=0, state_131=0, state_141=0, state_143=0, state_145=0, state_147=1, state_149=5, state_154=1, state_168=1, state_17=2, state_170=2, state_172=0, state_174=0, state_176=0, state_178=0, state_180=0, state_182=1, state_184=5, state_189=1, state_203=1, state_205=2, state_207=0, state_209=0, state_34=0, state_42=0, state_47=0, state_72=0, state_8=2, state_98=0, var_10=1, var_11=0, var_11_arg_0=2, var_11_arg_1=1, var_12=0, var_12_arg_0=0, var_12_arg_1=1, var_12_arg_2=0, var_13=0, var_13_arg_0=0, var_14=0, var_14_arg_0=0, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=254, var_16_arg_0=0, var_19=0, var_19_arg_0=2, var_19_arg_1=1, var_20=0, var_20_arg_0=0, var_20_arg_1=1, var_20_arg_2=0, var_21=0, var_21_arg_0=0, var_22=0, var_22_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=1, var_24=1, var_24_arg_0=254, var_24_arg_1=0, var_25=0, var_25_arg_0=0, var_26=0, var_26_arg_0=0, var_26_arg_1=1, var_27=1, var_27_arg_0=0, var_28=0, var_28_arg_0=0, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_32=1, var_33=0, var_36=1, var_36_arg_0=0, var_37=1, var_37_arg_0=1, var_37_arg_1=1, var_39=0, var_4=0, var_40=1, var_40_arg_0=0, var_40_arg_1=1, var_41=0, var_44=1, var_44_arg_0=0, var_44_arg_1=0, var_46=0, var_49=1, var_49_arg_0=0, var_49_arg_1=0, var_5=1, var_50=1, var_51=0, var_51_arg_0=0, var_51_arg_1=1, var_52=1, var_52_arg_0=1, var_52_arg_1=0, var_53=1, var_53_arg_0=1, var_54=1, var_54_arg_0=1, var_54_arg_1=1, var_55=0, var_55_arg_0=0, var_55_arg_1=1, var_56=4, var_57=0, var_57_arg_0=0, var_57_arg_1=4, var_58=5, var_59=0, var_59_arg_0=0, var_59_arg_1=5, var_60=0, var_60_arg_0=0, var_60_arg_1=0, var_61=0, var_61_arg_0=0, var_61_arg_1=0, var_62=1, var_62_arg_0=1, var_62_arg_1=0, var_63_arg_0=1, var_63_arg_1=1, var_63_arg_2=0, var_64=0, var_64_arg_0=0, var_64_arg_1=1, var_65=0, var_65_arg_0=0, var_65_arg_1=1, var_66=0, var_66_arg_0=0, var_66_arg_1=0, var_7=2, var_76=2, var_86=3] [L267] EXPR var_63_arg_0 ? var_63_arg_1 : var_63_arg_2 VAL [init_130_arg_1=0, init_132_arg_1=0, init_142_arg_1=0, init_144_arg_1=0, init_146_arg_1=0, init_148_arg_1=1, init_150_arg_1=5, init_155_arg_1=1, init_169_arg_1=1, init_171_arg_1=2, init_173_arg_1=0, init_175_arg_1=0, init_177_arg_1=0, init_179_arg_1=0, init_181_arg_1=0, init_183_arg_1=1, init_185_arg_1=5, init_18_arg_1=2, init_190_arg_1=1, init_204_arg_1=1, init_206_arg_1=2, init_208_arg_1=0, init_210_arg_1=0, init_35_arg_1=0, init_43_arg_1=0, init_48_arg_1=0, init_73_arg_1=0, init_99_arg_1=0, init_9_arg_1=2, input_2=3, input_451=2, input_572=1, mask_SORT_1=1, mask_SORT_3=4294967295, mask_SORT_38=4294967295, mask_SORT_45=7, mask_SORT_6=3, msb_SORT_1=1, msb_SORT_3=2147483648, msb_SORT_38=1073741824, msb_SORT_45=4, msb_SORT_6=2, state_129=0, state_131=0, state_141=0, state_143=0, state_145=0, state_147=1, state_149=5, state_154=1, state_168=1, state_17=2, state_170=2, state_172=0, state_174=0, state_176=0, state_178=0, state_180=0, state_182=1, state_184=5, state_189=1, state_203=1, state_205=2, state_207=0, state_209=0, state_34=0, state_42=0, state_47=0, state_72=0, state_8=2, state_98=0, var_10=1, var_11=0, var_11_arg_0=2, var_11_arg_1=1, var_12=0, var_12_arg_0=0, var_12_arg_1=1, var_12_arg_2=0, var_13=0, var_13_arg_0=0, var_14=0, var_14_arg_0=0, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=254, var_16_arg_0=0, var_19=0, var_19_arg_0=2, var_19_arg_1=1, var_20=0, var_20_arg_0=0, var_20_arg_1=1, var_20_arg_2=0, var_21=0, var_21_arg_0=0, var_22=0, var_22_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=1, var_24=1, var_24_arg_0=254, var_24_arg_1=0, var_25=0, var_25_arg_0=0, var_26=0, var_26_arg_0=0, var_26_arg_1=1, var_27=1, var_27_arg_0=0, var_28=0, var_28_arg_0=0, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_32=1, var_33=0, var_36=1, var_36_arg_0=0, var_37=1, var_37_arg_0=1, var_37_arg_1=1, var_39=0, var_4=0, var_40=1, var_40_arg_0=0, var_40_arg_1=1, var_41=0, var_44=1, var_44_arg_0=0, var_44_arg_1=0, var_46=0, var_49=1, var_49_arg_0=0, var_49_arg_1=0, var_5=1, var_50=1, var_51=0, var_51_arg_0=0, var_51_arg_1=1, var_52=1, var_52_arg_0=1, var_52_arg_1=0, var_53=1, var_53_arg_0=1, var_54=1, var_54_arg_0=1, var_54_arg_1=1, var_55=0, var_55_arg_0=0, var_55_arg_1=1, var_56=4, var_57=0, var_57_arg_0=0, var_57_arg_1=4, var_58=5, var_59=0, var_59_arg_0=0, var_59_arg_1=5, var_60=0, var_60_arg_0=0, var_60_arg_1=0, var_61=0, var_61_arg_0=0, var_61_arg_1=0, var_62=1, var_62_arg_0=1, var_62_arg_1=0, var_63_arg_0=1, var_63_arg_0 ? var_63_arg_1 : var_63_arg_2=1, var_63_arg_1=1, var_63_arg_2=0, var_64=0, var_64_arg_0=0, var_64_arg_1=1, var_65=0, var_65_arg_0=0, var_65_arg_1=1, var_66=0, var_66_arg_0=0, var_66_arg_1=0, var_7=2, var_76=2, var_86=3] [L267] SORT_3 var_63 = var_63_arg_0 ? var_63_arg_1 : var_63_arg_2; [L268] SORT_1 var_67_arg_0 = var_66; [L269] SORT_3 var_67_arg_1 = var_5; [L270] SORT_3 var_67_arg_2 = var_63; VAL [init_130_arg_1=0, init_132_arg_1=0, init_142_arg_1=0, init_144_arg_1=0, init_146_arg_1=0, init_148_arg_1=1, init_150_arg_1=5, init_155_arg_1=1, init_169_arg_1=1, init_171_arg_1=2, init_173_arg_1=0, init_175_arg_1=0, init_177_arg_1=0, init_179_arg_1=0, init_181_arg_1=0, init_183_arg_1=1, init_185_arg_1=5, init_18_arg_1=2, init_190_arg_1=1, init_204_arg_1=1, init_206_arg_1=2, init_208_arg_1=0, init_210_arg_1=0, init_35_arg_1=0, init_43_arg_1=0, init_48_arg_1=0, init_73_arg_1=0, init_99_arg_1=0, init_9_arg_1=2, input_2=3, input_451=2, input_572=1, mask_SORT_1=1, mask_SORT_3=4294967295, mask_SORT_38=4294967295, mask_SORT_45=7, mask_SORT_6=3, msb_SORT_1=1, msb_SORT_3=2147483648, msb_SORT_38=1073741824, msb_SORT_45=4, msb_SORT_6=2, state_129=0, state_131=0, state_141=0, state_143=0, state_145=0, state_147=1, state_149=5, state_154=1, state_168=1, state_17=2, state_170=2, state_172=0, state_174=0, state_176=0, state_178=0, state_180=0, state_182=1, state_184=5, state_189=1, state_203=1, state_205=2, state_207=0, state_209=0, state_34=0, state_42=0, state_47=0, state_72=0, state_8=2, state_98=0, var_10=1, var_11=0, var_11_arg_0=2, var_11_arg_1=1, var_12=0, var_12_arg_0=0, var_12_arg_1=1, var_12_arg_2=0, var_13=0, var_13_arg_0=0, var_14=0, var_14_arg_0=0, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=254, var_16_arg_0=0, var_19=0, var_19_arg_0=2, var_19_arg_1=1, var_20=0, var_20_arg_0=0, var_20_arg_1=1, var_20_arg_2=0, var_21=0, var_21_arg_0=0, var_22=0, var_22_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=1, var_24=1, var_24_arg_0=254, var_24_arg_1=0, var_25=0, var_25_arg_0=0, var_26=0, var_26_arg_0=0, var_26_arg_1=1, var_27=1, var_27_arg_0=0, var_28=0, var_28_arg_0=0, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_32=1, var_33=0, var_36=1, var_36_arg_0=0, var_37=1, var_37_arg_0=1, var_37_arg_1=1, var_39=0, var_4=0, var_40=1, var_40_arg_0=0, var_40_arg_1=1, var_41=0, var_44=1, var_44_arg_0=0, var_44_arg_1=0, var_46=0, var_49=1, var_49_arg_0=0, var_49_arg_1=0, var_5=1, var_50=1, var_51=0, var_51_arg_0=0, var_51_arg_1=1, var_52=1, var_52_arg_0=1, var_52_arg_1=0, var_53=1, var_53_arg_0=1, var_54=1, var_54_arg_0=1, var_54_arg_1=1, var_55=0, var_55_arg_0=0, var_55_arg_1=1, var_56=4, var_57=0, var_57_arg_0=0, var_57_arg_1=4, var_58=5, var_59=0, var_59_arg_0=0, var_59_arg_1=5, var_60=0, var_60_arg_0=0, var_60_arg_1=0, var_61=0, var_61_arg_0=0, var_61_arg_1=0, var_62=1, var_62_arg_0=1, var_62_arg_1=0, var_63=1, var_63_arg_0=1, var_63_arg_1=1, var_63_arg_2=0, var_64=0, var_64_arg_0=0, var_64_arg_1=1, var_65=0, var_65_arg_0=0, var_65_arg_1=1, var_66=0, var_66_arg_0=0, var_66_arg_1=0, var_67_arg_0=0, var_67_arg_1=1, var_67_arg_2=1, var_7=2, var_76=2, var_86=3] [L271] EXPR var_67_arg_0 ? var_67_arg_1 : var_67_arg_2 VAL [init_130_arg_1=0, init_132_arg_1=0, init_142_arg_1=0, init_144_arg_1=0, init_146_arg_1=0, init_148_arg_1=1, init_150_arg_1=5, init_155_arg_1=1, init_169_arg_1=1, init_171_arg_1=2, init_173_arg_1=0, init_175_arg_1=0, init_177_arg_1=0, init_179_arg_1=0, init_181_arg_1=0, init_183_arg_1=1, init_185_arg_1=5, init_18_arg_1=2, init_190_arg_1=1, init_204_arg_1=1, init_206_arg_1=2, init_208_arg_1=0, init_210_arg_1=0, init_35_arg_1=0, init_43_arg_1=0, init_48_arg_1=0, init_73_arg_1=0, init_99_arg_1=0, init_9_arg_1=2, input_2=3, input_451=2, input_572=1, mask_SORT_1=1, mask_SORT_3=4294967295, mask_SORT_38=4294967295, mask_SORT_45=7, mask_SORT_6=3, msb_SORT_1=1, msb_SORT_3=2147483648, msb_SORT_38=1073741824, msb_SORT_45=4, msb_SORT_6=2, state_129=0, state_131=0, state_141=0, state_143=0, state_145=0, state_147=1, state_149=5, state_154=1, state_168=1, state_17=2, state_170=2, state_172=0, state_174=0, state_176=0, state_178=0, state_180=0, state_182=1, state_184=5, state_189=1, state_203=1, state_205=2, state_207=0, state_209=0, state_34=0, state_42=0, state_47=0, state_72=0, state_8=2, state_98=0, var_10=1, var_11=0, var_11_arg_0=2, var_11_arg_1=1, var_12=0, var_12_arg_0=0, var_12_arg_1=1, var_12_arg_2=0, var_13=0, var_13_arg_0=0, var_14=0, var_14_arg_0=0, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=254, var_16_arg_0=0, var_19=0, var_19_arg_0=2, var_19_arg_1=1, var_20=0, var_20_arg_0=0, var_20_arg_1=1, var_20_arg_2=0, var_21=0, var_21_arg_0=0, var_22=0, var_22_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=1, var_24=1, var_24_arg_0=254, var_24_arg_1=0, var_25=0, var_25_arg_0=0, var_26=0, var_26_arg_0=0, var_26_arg_1=1, var_27=1, var_27_arg_0=0, var_28=0, var_28_arg_0=0, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_32=1, var_33=0, var_36=1, var_36_arg_0=0, var_37=1, var_37_arg_0=1, var_37_arg_1=1, var_39=0, var_4=0, var_40=1, var_40_arg_0=0, var_40_arg_1=1, var_41=0, var_44=1, var_44_arg_0=0, var_44_arg_1=0, var_46=0, var_49=1, var_49_arg_0=0, var_49_arg_1=0, var_5=1, var_50=1, var_51=0, var_51_arg_0=0, var_51_arg_1=1, var_52=1, var_52_arg_0=1, var_52_arg_1=0, var_53=1, var_53_arg_0=1, var_54=1, var_54_arg_0=1, var_54_arg_1=1, var_55=0, var_55_arg_0=0, var_55_arg_1=1, var_56=4, var_57=0, var_57_arg_0=0, var_57_arg_1=4, var_58=5, var_59=0, var_59_arg_0=0, var_59_arg_1=5, var_60=0, var_60_arg_0=0, var_60_arg_1=0, var_61=0, var_61_arg_0=0, var_61_arg_1=0, var_62=1, var_62_arg_0=1, var_62_arg_1=0, var_63=1, var_63_arg_0=1, var_63_arg_1=1, var_63_arg_2=0, var_64=0, var_64_arg_0=0, var_64_arg_1=1, var_65=0, var_65_arg_0=0, var_65_arg_1=1, var_66=0, var_66_arg_0=0, var_66_arg_1=0, var_67_arg_0=0, var_67_arg_0 ? var_67_arg_1 : var_67_arg_2=1, var_67_arg_1=1, var_67_arg_2=1, var_7=2, var_76=2, var_86=3] [L271] SORT_3 var_67 = var_67_arg_0 ? var_67_arg_1 : var_67_arg_2; [L272] SORT_3 var_68_arg_0 = var_67; [L273] SORT_1 var_68 = var_68_arg_0 >> 0; [L274] var_68 = var_68 & mask_SORT_1 [L275] SORT_1 var_69_arg_0 = var_13; [L276] SORT_1 var_69_arg_1 = var_68; [L277] SORT_1 var_69 = var_69_arg_0 & var_69_arg_1; [L278] SORT_1 var_70_arg_0 = var_69; [L279] SORT_1 var_70_arg_1 = var_21; [L280] SORT_1 var_70 = var_70_arg_0 & var_70_arg_1; [L281] SORT_1 var_71_arg_0 = var_70; [L282] SORT_1 var_71 = ~var_71_arg_0; [L283] SORT_45 var_113_arg_0 = state_47; [L284] SORT_45 var_113_arg_1 = var_50; [L285] SORT_1 var_113 = var_113_arg_0 == var_113_arg_1; [L286] SORT_6 var_114_arg_0 = state_98; [L287] SORT_6 var_114_arg_1 = var_10; [L288] SORT_1 var_114 = var_114_arg_0 == var_114_arg_1; [L289] SORT_1 var_115_arg_0 = var_113; [L290] SORT_1 var_115_arg_1 = var_114; [L291] SORT_1 var_115 = var_115_arg_0 | var_115_arg_1; [L292] var_115 = var_115 & mask_SORT_1 [L293] SORT_6 var_100_arg_0 = state_98; [L294] SORT_6 var_100_arg_1 = var_41; [L295] SORT_1 var_100 = var_100_arg_0 == var_100_arg_1; [L296] SORT_45 var_101_arg_0 = state_47; [L297] SORT_45 var_101_arg_1 = var_46; [L298] SORT_1 var_101 = var_101_arg_0 == var_101_arg_1; [L299] SORT_45 var_102_arg_0 = state_47; [L300] SORT_45 var_102_arg_1 = var_50; [L301] SORT_1 var_102 = var_102_arg_0 == var_102_arg_1; [L302] SORT_1 var_103_arg_0 = var_101; [L303] SORT_1 var_103_arg_1 = var_102; [L304] SORT_1 var_103 = var_103_arg_0 | var_103_arg_1; [L305] SORT_1 var_104_arg_0 = var_103; [L306] SORT_1 var_104 = ~var_104_arg_0; [L307] SORT_1 var_105_arg_0 = var_100; [L308] SORT_1 var_105_arg_1 = var_104; [L309] SORT_1 var_105 = var_105_arg_0 & var_105_arg_1; [L310] SORT_6 var_106_arg_0 = state_98; [L311] SORT_6 var_106_arg_1 = var_10; [L312] SORT_1 var_106 = var_106_arg_0 == var_106_arg_1; [L313] SORT_45 var_107_arg_0 = state_47; [L314] SORT_45 var_107_arg_1 = var_56; [L315] SORT_1 var_107 = var_107_arg_0 == var_107_arg_1; [L316] SORT_45 var_108_arg_0 = state_47; [L317] SORT_45 var_108_arg_1 = var_58; [L318] SORT_1 var_108 = var_108_arg_0 == var_108_arg_1; [L319] SORT_1 var_109_arg_0 = var_107; [L320] SORT_1 var_109_arg_1 = var_108; [L321] SORT_1 var_109 = var_109_arg_0 | var_109_arg_1; [L322] SORT_1 var_110_arg_0 = var_106; [L323] SORT_1 var_110_arg_1 = var_109; [L324] SORT_1 var_110 = var_110_arg_0 & var_110_arg_1; [L325] SORT_1 var_111_arg_0 = var_105; [L326] SORT_1 var_111_arg_1 = var_110; [L327] SORT_1 var_111 = var_111_arg_0 | var_111_arg_1; [L328] var_111 = var_111 & mask_SORT_1 [L329] SORT_6 var_92_arg_0 = state_42; [L330] SORT_6 var_92_arg_1 = var_7; [L331] SORT_1 var_92 = var_92_arg_0 == var_92_arg_1; [L332] SORT_1 var_93_arg_0 = var_33; [L333] SORT_1 var_93_arg_1 = var_92; [L334] SORT_1 var_93 = var_93_arg_0 | var_93_arg_1; [L335] var_93 = var_93 & mask_SORT_1 [L336] SORT_45 var_77_arg_0 = state_47; [L337] SORT_45 var_77_arg_1 = var_76; [L338] SORT_1 var_77 = var_77_arg_0 == var_77_arg_1; [L339] SORT_45 var_78_arg_0 = state_47; [L340] SORT_45 var_78_arg_1 = var_56; [L341] SORT_1 var_78 = var_78_arg_0 == var_78_arg_1; [L342] SORT_1 var_79_arg_0 = var_77; [L343] SORT_1 var_79_arg_1 = var_78; [L344] SORT_1 var_79 = var_79_arg_0 | var_79_arg_1; [L345] SORT_45 var_80_arg_0 = state_47; [L346] SORT_45 var_80_arg_1 = var_58; [L347] SORT_1 var_80 = var_80_arg_0 == var_80_arg_1; [L348] SORT_1 var_81_arg_0 = var_79; [L349] SORT_1 var_81_arg_1 = var_80; [L350] SORT_1 var_81 = var_81_arg_0 | var_81_arg_1; [L351] SORT_45 var_82_arg_0 = state_47; [L352] SORT_45 var_82_arg_1 = var_50; [L353] SORT_1 var_82 = var_82_arg_0 == var_82_arg_1; [L354] SORT_6 var_83_arg_0 = state_42; [L355] SORT_6 var_83_arg_1 = var_10; [L356] SORT_1 var_83 = var_83_arg_0 == var_83_arg_1; [L357] SORT_1 var_84_arg_0 = var_82; [L358] SORT_1 var_84_arg_1 = var_83; [L359] SORT_1 var_84 = var_84_arg_0 & var_84_arg_1; [L360] SORT_1 var_85_arg_0 = var_81; [L361] SORT_1 var_85_arg_1 = var_84; [L362] SORT_1 var_85 = var_85_arg_0 | var_85_arg_1; [L363] SORT_45 var_87_arg_0 = state_47; [L364] SORT_45 var_87_arg_1 = var_86; [L365] SORT_1 var_87 = var_87_arg_0 == var_87_arg_1; [L366] SORT_6 var_88_arg_0 = state_42; [L367] SORT_6 var_88_arg_1 = var_41; [L368] SORT_1 var_88 = var_88_arg_0 == var_88_arg_1; [L369] SORT_1 var_89_arg_0 = var_87; [L370] SORT_1 var_89_arg_1 = var_88; [L371] SORT_1 var_89 = var_89_arg_0 & var_89_arg_1; [L372] SORT_1 var_90_arg_0 = var_85; [L373] SORT_1 var_90_arg_1 = var_89; [L374] SORT_1 var_90 = var_90_arg_0 | var_90_arg_1; [L375] var_90 = var_90 & mask_SORT_1 [L376] SORT_1 var_91_arg_0 = var_90; [L377] SORT_3 var_91_arg_1 = var_5; [L378] SORT_3 var_91_arg_2 = var_4; VAL [init_130_arg_1=0, init_132_arg_1=0, init_142_arg_1=0, init_144_arg_1=0, init_146_arg_1=0, init_148_arg_1=1, init_150_arg_1=5, init_155_arg_1=1, init_169_arg_1=1, init_171_arg_1=2, init_173_arg_1=0, init_175_arg_1=0, init_177_arg_1=0, init_179_arg_1=0, init_181_arg_1=0, init_183_arg_1=1, init_185_arg_1=5, init_18_arg_1=2, init_190_arg_1=1, init_204_arg_1=1, init_206_arg_1=2, init_208_arg_1=0, init_210_arg_1=0, init_35_arg_1=0, init_43_arg_1=0, init_48_arg_1=0, init_73_arg_1=0, init_99_arg_1=0, init_9_arg_1=2, input_2=3, input_451=2, input_572=1, mask_SORT_1=1, mask_SORT_3=4294967295, mask_SORT_38=4294967295, mask_SORT_45=7, mask_SORT_6=3, msb_SORT_1=1, msb_SORT_3=2147483648, msb_SORT_38=1073741824, msb_SORT_45=4, msb_SORT_6=2, state_129=0, state_131=0, state_141=0, state_143=0, state_145=0, state_147=1, state_149=5, state_154=1, state_168=1, state_17=2, state_170=2, state_172=0, state_174=0, state_176=0, state_178=0, state_180=0, state_182=1, state_184=5, state_189=1, state_203=1, state_205=2, state_207=0, state_209=0, state_34=0, state_42=0, state_47=0, state_72=0, state_8=2, state_98=0, var_10=1, var_100=1, var_100_arg_0=0, var_100_arg_1=0, var_101=1, var_101_arg_0=0, var_101_arg_1=0, var_102=0, var_102_arg_0=0, var_102_arg_1=1, var_103=1, var_103_arg_0=1, var_103_arg_1=0, var_104=4, var_104_arg_0=1, var_105=0, var_105_arg_0=1, var_105_arg_1=4, var_106=0, var_106_arg_0=0, var_106_arg_1=1, var_107=0, var_107_arg_0=0, var_107_arg_1=4, var_108=0, var_108_arg_0=0, var_108_arg_1=5, var_109=0, var_109_arg_0=0, var_109_arg_1=0, var_11=0, var_110=0, var_110_arg_0=0, var_110_arg_1=0, var_111=0, var_111_arg_0=0, var_111_arg_1=0, var_113=0, var_113_arg_0=0, var_113_arg_1=1, var_114=0, var_114_arg_0=0, var_114_arg_1=1, var_115=0, var_115_arg_0=0, var_115_arg_1=0, var_11_arg_0=2, var_11_arg_1=1, var_12=0, var_12_arg_0=0, var_12_arg_1=1, var_12_arg_2=0, var_13=0, var_13_arg_0=0, var_14=0, var_14_arg_0=0, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=254, var_16_arg_0=0, var_19=0, var_19_arg_0=2, var_19_arg_1=1, var_20=0, var_20_arg_0=0, var_20_arg_1=1, var_20_arg_2=0, var_21=0, var_21_arg_0=0, var_22=0, var_22_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=1, var_24=1, var_24_arg_0=254, var_24_arg_1=0, var_25=0, var_25_arg_0=0, var_26=0, var_26_arg_0=0, var_26_arg_1=1, var_27=1, var_27_arg_0=0, var_28=0, var_28_arg_0=0, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_32=1, var_33=0, var_36=1, var_36_arg_0=0, var_37=1, var_37_arg_0=1, var_37_arg_1=1, var_39=0, var_4=0, var_40=1, var_40_arg_0=0, var_40_arg_1=1, var_41=0, var_44=1, var_44_arg_0=0, var_44_arg_1=0, var_46=0, var_49=1, var_49_arg_0=0, var_49_arg_1=0, var_5=1, var_50=1, var_51=0, var_51_arg_0=0, var_51_arg_1=1, var_52=1, var_52_arg_0=1, var_52_arg_1=0, var_53=1, var_53_arg_0=1, var_54=1, var_54_arg_0=1, var_54_arg_1=1, var_55=0, var_55_arg_0=0, var_55_arg_1=1, var_56=4, var_57=0, var_57_arg_0=0, var_57_arg_1=4, var_58=5, var_59=0, var_59_arg_0=0, var_59_arg_1=5, var_60=0, var_60_arg_0=0, var_60_arg_1=0, var_61=0, var_61_arg_0=0, var_61_arg_1=0, var_62=1, var_62_arg_0=1, var_62_arg_1=0, var_63=1, var_63_arg_0=1, var_63_arg_1=1, var_63_arg_2=0, var_64=0, var_64_arg_0=0, var_64_arg_1=1, var_65=0, var_65_arg_0=0, var_65_arg_1=1, var_66=0, var_66_arg_0=0, var_66_arg_1=0, var_67=1, var_67_arg_0=0, var_67_arg_1=1, var_67_arg_2=1, var_68=1, var_68_arg_0=1, var_69=0, var_69_arg_0=0, var_69_arg_1=1, var_7=2, var_70=0, var_70_arg_0=0, var_70_arg_1=0, var_71_arg_0=0, var_76=2, var_77=0, var_77_arg_0=0, var_77_arg_1=2, var_78=0, var_78_arg_0=0, var_78_arg_1=4, var_79=0, var_79_arg_0=0, var_79_arg_1=0, var_80=0, var_80_arg_0=0, var_80_arg_1=5, var_81=0, var_81_arg_0=0, var_81_arg_1=0, var_82=0, var_82_arg_0=0, var_82_arg_1=1, var_83=0, var_83_arg_0=0, var_83_arg_1=1, var_84=0, var_84_arg_0=0, var_84_arg_1=0, var_85=0, var_85_arg_0=0, var_85_arg_1=0, var_86=3, var_87=0, var_87_arg_0=0, var_87_arg_1=3, var_88=1, var_88_arg_0=0, var_88_arg_1=0, var_89=0, var_89_arg_0=0, var_89_arg_1=1, var_90=0, var_90_arg_0=0, var_90_arg_1=0, var_91_arg_0=0, var_91_arg_1=1, var_91_arg_2=0, var_92=0, var_92_arg_0=0, var_92_arg_1=2, var_93=0, var_93_arg_0=0, var_93_arg_1=0] [L379] EXPR var_91_arg_0 ? var_91_arg_1 : var_91_arg_2 VAL [init_130_arg_1=0, init_132_arg_1=0, init_142_arg_1=0, init_144_arg_1=0, init_146_arg_1=0, init_148_arg_1=1, init_150_arg_1=5, init_155_arg_1=1, init_169_arg_1=1, init_171_arg_1=2, init_173_arg_1=0, init_175_arg_1=0, init_177_arg_1=0, init_179_arg_1=0, init_181_arg_1=0, init_183_arg_1=1, init_185_arg_1=5, init_18_arg_1=2, init_190_arg_1=1, init_204_arg_1=1, init_206_arg_1=2, init_208_arg_1=0, init_210_arg_1=0, init_35_arg_1=0, init_43_arg_1=0, init_48_arg_1=0, init_73_arg_1=0, init_99_arg_1=0, init_9_arg_1=2, input_2=3, input_451=2, input_572=1, mask_SORT_1=1, mask_SORT_3=4294967295, mask_SORT_38=4294967295, mask_SORT_45=7, mask_SORT_6=3, msb_SORT_1=1, msb_SORT_3=2147483648, msb_SORT_38=1073741824, msb_SORT_45=4, msb_SORT_6=2, state_129=0, state_131=0, state_141=0, state_143=0, state_145=0, state_147=1, state_149=5, state_154=1, state_168=1, state_17=2, state_170=2, state_172=0, state_174=0, state_176=0, state_178=0, state_180=0, state_182=1, state_184=5, state_189=1, state_203=1, state_205=2, state_207=0, state_209=0, state_34=0, state_42=0, state_47=0, state_72=0, state_8=2, state_98=0, var_10=1, var_100=1, var_100_arg_0=0, var_100_arg_1=0, var_101=1, var_101_arg_0=0, var_101_arg_1=0, var_102=0, var_102_arg_0=0, var_102_arg_1=1, var_103=1, var_103_arg_0=1, var_103_arg_1=0, var_104=4, var_104_arg_0=1, var_105=0, var_105_arg_0=1, var_105_arg_1=4, var_106=0, var_106_arg_0=0, var_106_arg_1=1, var_107=0, var_107_arg_0=0, var_107_arg_1=4, var_108=0, var_108_arg_0=0, var_108_arg_1=5, var_109=0, var_109_arg_0=0, var_109_arg_1=0, var_11=0, var_110=0, var_110_arg_0=0, var_110_arg_1=0, var_111=0, var_111_arg_0=0, var_111_arg_1=0, var_113=0, var_113_arg_0=0, var_113_arg_1=1, var_114=0, var_114_arg_0=0, var_114_arg_1=1, var_115=0, var_115_arg_0=0, var_115_arg_1=0, var_11_arg_0=2, var_11_arg_1=1, var_12=0, var_12_arg_0=0, var_12_arg_1=1, var_12_arg_2=0, var_13=0, var_13_arg_0=0, var_14=0, var_14_arg_0=0, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=254, var_16_arg_0=0, var_19=0, var_19_arg_0=2, var_19_arg_1=1, var_20=0, var_20_arg_0=0, var_20_arg_1=1, var_20_arg_2=0, var_21=0, var_21_arg_0=0, var_22=0, var_22_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=1, var_24=1, var_24_arg_0=254, var_24_arg_1=0, var_25=0, var_25_arg_0=0, var_26=0, var_26_arg_0=0, var_26_arg_1=1, var_27=1, var_27_arg_0=0, var_28=0, var_28_arg_0=0, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_32=1, var_33=0, var_36=1, var_36_arg_0=0, var_37=1, var_37_arg_0=1, var_37_arg_1=1, var_39=0, var_4=0, var_40=1, var_40_arg_0=0, var_40_arg_1=1, var_41=0, var_44=1, var_44_arg_0=0, var_44_arg_1=0, var_46=0, var_49=1, var_49_arg_0=0, var_49_arg_1=0, var_5=1, var_50=1, var_51=0, var_51_arg_0=0, var_51_arg_1=1, var_52=1, var_52_arg_0=1, var_52_arg_1=0, var_53=1, var_53_arg_0=1, var_54=1, var_54_arg_0=1, var_54_arg_1=1, var_55=0, var_55_arg_0=0, var_55_arg_1=1, var_56=4, var_57=0, var_57_arg_0=0, var_57_arg_1=4, var_58=5, var_59=0, var_59_arg_0=0, var_59_arg_1=5, var_60=0, var_60_arg_0=0, var_60_arg_1=0, var_61=0, var_61_arg_0=0, var_61_arg_1=0, var_62=1, var_62_arg_0=1, var_62_arg_1=0, var_63=1, var_63_arg_0=1, var_63_arg_1=1, var_63_arg_2=0, var_64=0, var_64_arg_0=0, var_64_arg_1=1, var_65=0, var_65_arg_0=0, var_65_arg_1=1, var_66=0, var_66_arg_0=0, var_66_arg_1=0, var_67=1, var_67_arg_0=0, var_67_arg_1=1, var_67_arg_2=1, var_68=1, var_68_arg_0=1, var_69=0, var_69_arg_0=0, var_69_arg_1=1, var_7=2, var_70=0, var_70_arg_0=0, var_70_arg_1=0, var_71_arg_0=0, var_76=2, var_77=0, var_77_arg_0=0, var_77_arg_1=2, var_78=0, var_78_arg_0=0, var_78_arg_1=4, var_79=0, var_79_arg_0=0, var_79_arg_1=0, var_80=0, var_80_arg_0=0, var_80_arg_1=5, var_81=0, var_81_arg_0=0, var_81_arg_1=0, var_82=0, var_82_arg_0=0, var_82_arg_1=1, var_83=0, var_83_arg_0=0, var_83_arg_1=1, var_84=0, var_84_arg_0=0, var_84_arg_1=0, var_85=0, var_85_arg_0=0, var_85_arg_1=0, var_86=3, var_87=0, var_87_arg_0=0, var_87_arg_1=3, var_88=1, var_88_arg_0=0, var_88_arg_1=0, var_89=0, var_89_arg_0=0, var_89_arg_1=1, var_90=0, var_90_arg_0=0, var_90_arg_1=0, var_91_arg_0=0, var_91_arg_0 ? var_91_arg_1 : var_91_arg_2=0, var_91_arg_1=1, var_91_arg_2=0, var_92=0, var_92_arg_0=0, var_92_arg_1=2, var_93=0, var_93_arg_0=0, var_93_arg_1=0] [L379] SORT_3 var_91 = var_91_arg_0 ? var_91_arg_1 : var_91_arg_2; [L380] SORT_1 var_94_arg_0 = var_93; [L381] SORT_3 var_94_arg_1 = var_4; [L382] SORT_3 var_94_arg_2 = var_91; VAL [init_130_arg_1=0, init_132_arg_1=0, init_142_arg_1=0, init_144_arg_1=0, init_146_arg_1=0, init_148_arg_1=1, init_150_arg_1=5, init_155_arg_1=1, init_169_arg_1=1, init_171_arg_1=2, init_173_arg_1=0, init_175_arg_1=0, init_177_arg_1=0, init_179_arg_1=0, init_181_arg_1=0, init_183_arg_1=1, init_185_arg_1=5, init_18_arg_1=2, init_190_arg_1=1, init_204_arg_1=1, init_206_arg_1=2, init_208_arg_1=0, init_210_arg_1=0, init_35_arg_1=0, init_43_arg_1=0, init_48_arg_1=0, init_73_arg_1=0, init_99_arg_1=0, init_9_arg_1=2, input_2=3, input_451=2, input_572=1, mask_SORT_1=1, mask_SORT_3=4294967295, mask_SORT_38=4294967295, mask_SORT_45=7, mask_SORT_6=3, msb_SORT_1=1, msb_SORT_3=2147483648, msb_SORT_38=1073741824, msb_SORT_45=4, msb_SORT_6=2, state_129=0, state_131=0, state_141=0, state_143=0, state_145=0, state_147=1, state_149=5, state_154=1, state_168=1, state_17=2, state_170=2, state_172=0, state_174=0, state_176=0, state_178=0, state_180=0, state_182=1, state_184=5, state_189=1, state_203=1, state_205=2, state_207=0, state_209=0, state_34=0, state_42=0, state_47=0, state_72=0, state_8=2, state_98=0, var_10=1, var_100=1, var_100_arg_0=0, var_100_arg_1=0, var_101=1, var_101_arg_0=0, var_101_arg_1=0, var_102=0, var_102_arg_0=0, var_102_arg_1=1, var_103=1, var_103_arg_0=1, var_103_arg_1=0, var_104=4, var_104_arg_0=1, var_105=0, var_105_arg_0=1, var_105_arg_1=4, var_106=0, var_106_arg_0=0, var_106_arg_1=1, var_107=0, var_107_arg_0=0, var_107_arg_1=4, var_108=0, var_108_arg_0=0, var_108_arg_1=5, var_109=0, var_109_arg_0=0, var_109_arg_1=0, var_11=0, var_110=0, var_110_arg_0=0, var_110_arg_1=0, var_111=0, var_111_arg_0=0, var_111_arg_1=0, var_113=0, var_113_arg_0=0, var_113_arg_1=1, var_114=0, var_114_arg_0=0, var_114_arg_1=1, var_115=0, var_115_arg_0=0, var_115_arg_1=0, var_11_arg_0=2, var_11_arg_1=1, var_12=0, var_12_arg_0=0, var_12_arg_1=1, var_12_arg_2=0, var_13=0, var_13_arg_0=0, var_14=0, var_14_arg_0=0, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=254, var_16_arg_0=0, var_19=0, var_19_arg_0=2, var_19_arg_1=1, var_20=0, var_20_arg_0=0, var_20_arg_1=1, var_20_arg_2=0, var_21=0, var_21_arg_0=0, var_22=0, var_22_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=1, var_24=1, var_24_arg_0=254, var_24_arg_1=0, var_25=0, var_25_arg_0=0, var_26=0, var_26_arg_0=0, var_26_arg_1=1, var_27=1, var_27_arg_0=0, var_28=0, var_28_arg_0=0, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_32=1, var_33=0, var_36=1, var_36_arg_0=0, var_37=1, var_37_arg_0=1, var_37_arg_1=1, var_39=0, var_4=0, var_40=1, var_40_arg_0=0, var_40_arg_1=1, var_41=0, var_44=1, var_44_arg_0=0, var_44_arg_1=0, var_46=0, var_49=1, var_49_arg_0=0, var_49_arg_1=0, var_5=1, var_50=1, var_51=0, var_51_arg_0=0, var_51_arg_1=1, var_52=1, var_52_arg_0=1, var_52_arg_1=0, var_53=1, var_53_arg_0=1, var_54=1, var_54_arg_0=1, var_54_arg_1=1, var_55=0, var_55_arg_0=0, var_55_arg_1=1, var_56=4, var_57=0, var_57_arg_0=0, var_57_arg_1=4, var_58=5, var_59=0, var_59_arg_0=0, var_59_arg_1=5, var_60=0, var_60_arg_0=0, var_60_arg_1=0, var_61=0, var_61_arg_0=0, var_61_arg_1=0, var_62=1, var_62_arg_0=1, var_62_arg_1=0, var_63=1, var_63_arg_0=1, var_63_arg_1=1, var_63_arg_2=0, var_64=0, var_64_arg_0=0, var_64_arg_1=1, var_65=0, var_65_arg_0=0, var_65_arg_1=1, var_66=0, var_66_arg_0=0, var_66_arg_1=0, var_67=1, var_67_arg_0=0, var_67_arg_1=1, var_67_arg_2=1, var_68=1, var_68_arg_0=1, var_69=0, var_69_arg_0=0, var_69_arg_1=1, var_7=2, var_70=0, var_70_arg_0=0, var_70_arg_1=0, var_71_arg_0=0, var_76=2, var_77=0, var_77_arg_0=0, var_77_arg_1=2, var_78=0, var_78_arg_0=0, var_78_arg_1=4, var_79=0, var_79_arg_0=0, var_79_arg_1=0, var_80=0, var_80_arg_0=0, var_80_arg_1=5, var_81=0, var_81_arg_0=0, var_81_arg_1=0, var_82=0, var_82_arg_0=0, var_82_arg_1=1, var_83=0, var_83_arg_0=0, var_83_arg_1=1, var_84=0, var_84_arg_0=0, var_84_arg_1=0, var_85=0, var_85_arg_0=0, var_85_arg_1=0, var_86=3, var_87=0, var_87_arg_0=0, var_87_arg_1=3, var_88=1, var_88_arg_0=0, var_88_arg_1=0, var_89=0, var_89_arg_0=0, var_89_arg_1=1, var_90=0, var_90_arg_0=0, var_90_arg_1=0, var_91=0, var_91_arg_0=0, var_91_arg_1=1, var_91_arg_2=0, var_92=0, var_92_arg_0=0, var_92_arg_1=2, var_93=0, var_93_arg_0=0, var_93_arg_1=0, var_94_arg_0=0, var_94_arg_1=0, var_94_arg_2=0] [L383] EXPR var_94_arg_0 ? var_94_arg_1 : var_94_arg_2 VAL [init_130_arg_1=0, init_132_arg_1=0, init_142_arg_1=0, init_144_arg_1=0, init_146_arg_1=0, init_148_arg_1=1, init_150_arg_1=5, init_155_arg_1=1, init_169_arg_1=1, init_171_arg_1=2, init_173_arg_1=0, init_175_arg_1=0, init_177_arg_1=0, init_179_arg_1=0, init_181_arg_1=0, init_183_arg_1=1, init_185_arg_1=5, init_18_arg_1=2, init_190_arg_1=1, init_204_arg_1=1, init_206_arg_1=2, init_208_arg_1=0, init_210_arg_1=0, init_35_arg_1=0, init_43_arg_1=0, init_48_arg_1=0, init_73_arg_1=0, init_99_arg_1=0, init_9_arg_1=2, input_2=3, input_451=2, input_572=1, mask_SORT_1=1, mask_SORT_3=4294967295, mask_SORT_38=4294967295, mask_SORT_45=7, mask_SORT_6=3, msb_SORT_1=1, msb_SORT_3=2147483648, msb_SORT_38=1073741824, msb_SORT_45=4, msb_SORT_6=2, state_129=0, state_131=0, state_141=0, state_143=0, state_145=0, state_147=1, state_149=5, state_154=1, state_168=1, state_17=2, state_170=2, state_172=0, state_174=0, state_176=0, state_178=0, state_180=0, state_182=1, state_184=5, state_189=1, state_203=1, state_205=2, state_207=0, state_209=0, state_34=0, state_42=0, state_47=0, state_72=0, state_8=2, state_98=0, var_10=1, var_100=1, var_100_arg_0=0, var_100_arg_1=0, var_101=1, var_101_arg_0=0, var_101_arg_1=0, var_102=0, var_102_arg_0=0, var_102_arg_1=1, var_103=1, var_103_arg_0=1, var_103_arg_1=0, var_104=4, var_104_arg_0=1, var_105=0, var_105_arg_0=1, var_105_arg_1=4, var_106=0, var_106_arg_0=0, var_106_arg_1=1, var_107=0, var_107_arg_0=0, var_107_arg_1=4, var_108=0, var_108_arg_0=0, var_108_arg_1=5, var_109=0, var_109_arg_0=0, var_109_arg_1=0, var_11=0, var_110=0, var_110_arg_0=0, var_110_arg_1=0, var_111=0, var_111_arg_0=0, var_111_arg_1=0, var_113=0, var_113_arg_0=0, var_113_arg_1=1, var_114=0, var_114_arg_0=0, var_114_arg_1=1, var_115=0, var_115_arg_0=0, var_115_arg_1=0, var_11_arg_0=2, var_11_arg_1=1, var_12=0, var_12_arg_0=0, var_12_arg_1=1, var_12_arg_2=0, var_13=0, var_13_arg_0=0, var_14=0, var_14_arg_0=0, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=254, var_16_arg_0=0, var_19=0, var_19_arg_0=2, var_19_arg_1=1, var_20=0, var_20_arg_0=0, var_20_arg_1=1, var_20_arg_2=0, var_21=0, var_21_arg_0=0, var_22=0, var_22_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=1, var_24=1, var_24_arg_0=254, var_24_arg_1=0, var_25=0, var_25_arg_0=0, var_26=0, var_26_arg_0=0, var_26_arg_1=1, var_27=1, var_27_arg_0=0, var_28=0, var_28_arg_0=0, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_32=1, var_33=0, var_36=1, var_36_arg_0=0, var_37=1, var_37_arg_0=1, var_37_arg_1=1, var_39=0, var_4=0, var_40=1, var_40_arg_0=0, var_40_arg_1=1, var_41=0, var_44=1, var_44_arg_0=0, var_44_arg_1=0, var_46=0, var_49=1, var_49_arg_0=0, var_49_arg_1=0, var_5=1, var_50=1, var_51=0, var_51_arg_0=0, var_51_arg_1=1, var_52=1, var_52_arg_0=1, var_52_arg_1=0, var_53=1, var_53_arg_0=1, var_54=1, var_54_arg_0=1, var_54_arg_1=1, var_55=0, var_55_arg_0=0, var_55_arg_1=1, var_56=4, var_57=0, var_57_arg_0=0, var_57_arg_1=4, var_58=5, var_59=0, var_59_arg_0=0, var_59_arg_1=5, var_60=0, var_60_arg_0=0, var_60_arg_1=0, var_61=0, var_61_arg_0=0, var_61_arg_1=0, var_62=1, var_62_arg_0=1, var_62_arg_1=0, var_63=1, var_63_arg_0=1, var_63_arg_1=1, var_63_arg_2=0, var_64=0, var_64_arg_0=0, var_64_arg_1=1, var_65=0, var_65_arg_0=0, var_65_arg_1=1, var_66=0, var_66_arg_0=0, var_66_arg_1=0, var_67=1, var_67_arg_0=0, var_67_arg_1=1, var_67_arg_2=1, var_68=1, var_68_arg_0=1, var_69=0, var_69_arg_0=0, var_69_arg_1=1, var_7=2, var_70=0, var_70_arg_0=0, var_70_arg_1=0, var_71_arg_0=0, var_76=2, var_77=0, var_77_arg_0=0, var_77_arg_1=2, var_78=0, var_78_arg_0=0, var_78_arg_1=4, var_79=0, var_79_arg_0=0, var_79_arg_1=0, var_80=0, var_80_arg_0=0, var_80_arg_1=5, var_81=0, var_81_arg_0=0, var_81_arg_1=0, var_82=0, var_82_arg_0=0, var_82_arg_1=1, var_83=0, var_83_arg_0=0, var_83_arg_1=1, var_84=0, var_84_arg_0=0, var_84_arg_1=0, var_85=0, var_85_arg_0=0, var_85_arg_1=0, var_86=3, var_87=0, var_87_arg_0=0, var_87_arg_1=3, var_88=1, var_88_arg_0=0, var_88_arg_1=0, var_89=0, var_89_arg_0=0, var_89_arg_1=1, var_90=0, var_90_arg_0=0, var_90_arg_1=0, var_91=0, var_91_arg_0=0, var_91_arg_1=1, var_91_arg_2=0, var_92=0, var_92_arg_0=0, var_92_arg_1=2, var_93=0, var_93_arg_0=0, var_93_arg_1=0, var_94_arg_0=0, var_94_arg_0 ? var_94_arg_1 : var_94_arg_2=0, var_94_arg_1=0, var_94_arg_2=0] [L383] SORT_3 var_94 = var_94_arg_0 ? var_94_arg_1 : var_94_arg_2; [L384] SORT_3 var_95_arg_0 = var_94; [L385] SORT_1 var_95 = var_95_arg_0 >> 0; [L386] var_95 = var_95 & mask_SORT_1 [L387] SORT_1 var_74_arg_0 = state_72; [L388] SORT_1 var_74 = ~var_74_arg_0; [L389] SORT_1 var_75_arg_0 = var_32; [L390] SORT_1 var_75_arg_1 = var_74; [L391] SORT_1 var_75 = var_75_arg_0 & var_75_arg_1; [L392] SORT_1 var_96_arg_0 = var_95; [L393] SORT_1 var_96_arg_1 = var_37; [L394] SORT_1 var_96_arg_2 = var_75; VAL [init_130_arg_1=0, init_132_arg_1=0, init_142_arg_1=0, init_144_arg_1=0, init_146_arg_1=0, init_148_arg_1=1, init_150_arg_1=5, init_155_arg_1=1, init_169_arg_1=1, init_171_arg_1=2, init_173_arg_1=0, init_175_arg_1=0, init_177_arg_1=0, init_179_arg_1=0, init_181_arg_1=0, init_183_arg_1=1, init_185_arg_1=5, init_18_arg_1=2, init_190_arg_1=1, init_204_arg_1=1, init_206_arg_1=2, init_208_arg_1=0, init_210_arg_1=0, init_35_arg_1=0, init_43_arg_1=0, init_48_arg_1=0, init_73_arg_1=0, init_99_arg_1=0, init_9_arg_1=2, input_2=3, input_451=2, input_572=1, mask_SORT_1=1, mask_SORT_3=4294967295, mask_SORT_38=4294967295, mask_SORT_45=7, mask_SORT_6=3, msb_SORT_1=1, msb_SORT_3=2147483648, msb_SORT_38=1073741824, msb_SORT_45=4, msb_SORT_6=2, state_129=0, state_131=0, state_141=0, state_143=0, state_145=0, state_147=1, state_149=5, state_154=1, state_168=1, state_17=2, state_170=2, state_172=0, state_174=0, state_176=0, state_178=0, state_180=0, state_182=1, state_184=5, state_189=1, state_203=1, state_205=2, state_207=0, state_209=0, state_34=0, state_42=0, state_47=0, state_72=0, state_8=2, state_98=0, var_10=1, var_100=1, var_100_arg_0=0, var_100_arg_1=0, var_101=1, var_101_arg_0=0, var_101_arg_1=0, var_102=0, var_102_arg_0=0, var_102_arg_1=1, var_103=1, var_103_arg_0=1, var_103_arg_1=0, var_104=4, var_104_arg_0=1, var_105=0, var_105_arg_0=1, var_105_arg_1=4, var_106=0, var_106_arg_0=0, var_106_arg_1=1, var_107=0, var_107_arg_0=0, var_107_arg_1=4, var_108=0, var_108_arg_0=0, var_108_arg_1=5, var_109=0, var_109_arg_0=0, var_109_arg_1=0, var_11=0, var_110=0, var_110_arg_0=0, var_110_arg_1=0, var_111=0, var_111_arg_0=0, var_111_arg_1=0, var_113=0, var_113_arg_0=0, var_113_arg_1=1, var_114=0, var_114_arg_0=0, var_114_arg_1=1, var_115=0, var_115_arg_0=0, var_115_arg_1=0, var_11_arg_0=2, var_11_arg_1=1, var_12=0, var_12_arg_0=0, var_12_arg_1=1, var_12_arg_2=0, var_13=0, var_13_arg_0=0, var_14=0, var_14_arg_0=0, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=254, var_16_arg_0=0, var_19=0, var_19_arg_0=2, var_19_arg_1=1, var_20=0, var_20_arg_0=0, var_20_arg_1=1, var_20_arg_2=0, var_21=0, var_21_arg_0=0, var_22=0, var_22_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=1, var_24=1, var_24_arg_0=254, var_24_arg_1=0, var_25=0, var_25_arg_0=0, var_26=0, var_26_arg_0=0, var_26_arg_1=1, var_27=1, var_27_arg_0=0, var_28=0, var_28_arg_0=0, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_32=1, var_33=0, var_36=1, var_36_arg_0=0, var_37=1, var_37_arg_0=1, var_37_arg_1=1, var_39=0, var_4=0, var_40=1, var_40_arg_0=0, var_40_arg_1=1, var_41=0, var_44=1, var_44_arg_0=0, var_44_arg_1=0, var_46=0, var_49=1, var_49_arg_0=0, var_49_arg_1=0, var_5=1, var_50=1, var_51=0, var_51_arg_0=0, var_51_arg_1=1, var_52=1, var_52_arg_0=1, var_52_arg_1=0, var_53=1, var_53_arg_0=1, var_54=1, var_54_arg_0=1, var_54_arg_1=1, var_55=0, var_55_arg_0=0, var_55_arg_1=1, var_56=4, var_57=0, var_57_arg_0=0, var_57_arg_1=4, var_58=5, var_59=0, var_59_arg_0=0, var_59_arg_1=5, var_60=0, var_60_arg_0=0, var_60_arg_1=0, var_61=0, var_61_arg_0=0, var_61_arg_1=0, var_62=1, var_62_arg_0=1, var_62_arg_1=0, var_63=1, var_63_arg_0=1, var_63_arg_1=1, var_63_arg_2=0, var_64=0, var_64_arg_0=0, var_64_arg_1=1, var_65=0, var_65_arg_0=0, var_65_arg_1=1, var_66=0, var_66_arg_0=0, var_66_arg_1=0, var_67=1, var_67_arg_0=0, var_67_arg_1=1, var_67_arg_2=1, var_68=1, var_68_arg_0=1, var_69=0, var_69_arg_0=0, var_69_arg_1=1, var_7=2, var_70=0, var_70_arg_0=0, var_70_arg_1=0, var_71_arg_0=0, var_74=255, var_74_arg_0=0, var_75=1, var_75_arg_0=1, var_75_arg_1=255, var_76=2, var_77=0, var_77_arg_0=0, var_77_arg_1=2, var_78=0, var_78_arg_0=0, var_78_arg_1=4, var_79=0, var_79_arg_0=0, var_79_arg_1=0, var_80=0, var_80_arg_0=0, var_80_arg_1=5, var_81=0, var_81_arg_0=0, var_81_arg_1=0, var_82=0, var_82_arg_0=0, var_82_arg_1=1, var_83=0, var_83_arg_0=0, var_83_arg_1=1, var_84=0, var_84_arg_0=0, var_84_arg_1=0, var_85=0, var_85_arg_0=0, var_85_arg_1=0, var_86=3, var_87=0, var_87_arg_0=0, var_87_arg_1=3, var_88=1, var_88_arg_0=0, var_88_arg_1=0, var_89=0, var_89_arg_0=0, var_89_arg_1=1, var_90=0, var_90_arg_0=0, var_90_arg_1=0, var_91=0, var_91_arg_0=0, var_91_arg_1=1, var_91_arg_2=0, var_92=0, var_92_arg_0=0, var_92_arg_1=2, var_93=0, var_93_arg_0=0, var_93_arg_1=0, var_94=0, var_94_arg_0=0, var_94_arg_1=0, var_94_arg_2=0, var_95=0, var_95_arg_0=0, var_96_arg_0=0, var_96_arg_1=1, var_96_arg_2=1] [L395] EXPR var_96_arg_0 ? var_96_arg_1 : var_96_arg_2 VAL [init_130_arg_1=0, init_132_arg_1=0, init_142_arg_1=0, init_144_arg_1=0, init_146_arg_1=0, init_148_arg_1=1, init_150_arg_1=5, init_155_arg_1=1, init_169_arg_1=1, init_171_arg_1=2, init_173_arg_1=0, init_175_arg_1=0, init_177_arg_1=0, init_179_arg_1=0, init_181_arg_1=0, init_183_arg_1=1, init_185_arg_1=5, init_18_arg_1=2, init_190_arg_1=1, init_204_arg_1=1, init_206_arg_1=2, init_208_arg_1=0, init_210_arg_1=0, init_35_arg_1=0, init_43_arg_1=0, init_48_arg_1=0, init_73_arg_1=0, init_99_arg_1=0, init_9_arg_1=2, input_2=3, input_451=2, input_572=1, mask_SORT_1=1, mask_SORT_3=4294967295, mask_SORT_38=4294967295, mask_SORT_45=7, mask_SORT_6=3, msb_SORT_1=1, msb_SORT_3=2147483648, msb_SORT_38=1073741824, msb_SORT_45=4, msb_SORT_6=2, state_129=0, state_131=0, state_141=0, state_143=0, state_145=0, state_147=1, state_149=5, state_154=1, state_168=1, state_17=2, state_170=2, state_172=0, state_174=0, state_176=0, state_178=0, state_180=0, state_182=1, state_184=5, state_189=1, state_203=1, state_205=2, state_207=0, state_209=0, state_34=0, state_42=0, state_47=0, state_72=0, state_8=2, state_98=0, var_10=1, var_100=1, var_100_arg_0=0, var_100_arg_1=0, var_101=1, var_101_arg_0=0, var_101_arg_1=0, var_102=0, var_102_arg_0=0, var_102_arg_1=1, var_103=1, var_103_arg_0=1, var_103_arg_1=0, var_104=4, var_104_arg_0=1, var_105=0, var_105_arg_0=1, var_105_arg_1=4, var_106=0, var_106_arg_0=0, var_106_arg_1=1, var_107=0, var_107_arg_0=0, var_107_arg_1=4, var_108=0, var_108_arg_0=0, var_108_arg_1=5, var_109=0, var_109_arg_0=0, var_109_arg_1=0, var_11=0, var_110=0, var_110_arg_0=0, var_110_arg_1=0, var_111=0, var_111_arg_0=0, var_111_arg_1=0, var_113=0, var_113_arg_0=0, var_113_arg_1=1, var_114=0, var_114_arg_0=0, var_114_arg_1=1, var_115=0, var_115_arg_0=0, var_115_arg_1=0, var_11_arg_0=2, var_11_arg_1=1, var_12=0, var_12_arg_0=0, var_12_arg_1=1, var_12_arg_2=0, var_13=0, var_13_arg_0=0, var_14=0, var_14_arg_0=0, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=254, var_16_arg_0=0, var_19=0, var_19_arg_0=2, var_19_arg_1=1, var_20=0, var_20_arg_0=0, var_20_arg_1=1, var_20_arg_2=0, var_21=0, var_21_arg_0=0, var_22=0, var_22_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=1, var_24=1, var_24_arg_0=254, var_24_arg_1=0, var_25=0, var_25_arg_0=0, var_26=0, var_26_arg_0=0, var_26_arg_1=1, var_27=1, var_27_arg_0=0, var_28=0, var_28_arg_0=0, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_32=1, var_33=0, var_36=1, var_36_arg_0=0, var_37=1, var_37_arg_0=1, var_37_arg_1=1, var_39=0, var_4=0, var_40=1, var_40_arg_0=0, var_40_arg_1=1, var_41=0, var_44=1, var_44_arg_0=0, var_44_arg_1=0, var_46=0, var_49=1, var_49_arg_0=0, var_49_arg_1=0, var_5=1, var_50=1, var_51=0, var_51_arg_0=0, var_51_arg_1=1, var_52=1, var_52_arg_0=1, var_52_arg_1=0, var_53=1, var_53_arg_0=1, var_54=1, var_54_arg_0=1, var_54_arg_1=1, var_55=0, var_55_arg_0=0, var_55_arg_1=1, var_56=4, var_57=0, var_57_arg_0=0, var_57_arg_1=4, var_58=5, var_59=0, var_59_arg_0=0, var_59_arg_1=5, var_60=0, var_60_arg_0=0, var_60_arg_1=0, var_61=0, var_61_arg_0=0, var_61_arg_1=0, var_62=1, var_62_arg_0=1, var_62_arg_1=0, var_63=1, var_63_arg_0=1, var_63_arg_1=1, var_63_arg_2=0, var_64=0, var_64_arg_0=0, var_64_arg_1=1, var_65=0, var_65_arg_0=0, var_65_arg_1=1, var_66=0, var_66_arg_0=0, var_66_arg_1=0, var_67=1, var_67_arg_0=0, var_67_arg_1=1, var_67_arg_2=1, var_68=1, var_68_arg_0=1, var_69=0, var_69_arg_0=0, var_69_arg_1=1, var_7=2, var_70=0, var_70_arg_0=0, var_70_arg_1=0, var_71_arg_0=0, var_74=255, var_74_arg_0=0, var_75=1, var_75_arg_0=1, var_75_arg_1=255, var_76=2, var_77=0, var_77_arg_0=0, var_77_arg_1=2, var_78=0, var_78_arg_0=0, var_78_arg_1=4, var_79=0, var_79_arg_0=0, var_79_arg_1=0, var_80=0, var_80_arg_0=0, var_80_arg_1=5, var_81=0, var_81_arg_0=0, var_81_arg_1=0, var_82=0, var_82_arg_0=0, var_82_arg_1=1, var_83=0, var_83_arg_0=0, var_83_arg_1=1, var_84=0, var_84_arg_0=0, var_84_arg_1=0, var_85=0, var_85_arg_0=0, var_85_arg_1=0, var_86=3, var_87=0, var_87_arg_0=0, var_87_arg_1=3, var_88=1, var_88_arg_0=0, var_88_arg_1=0, var_89=0, var_89_arg_0=0, var_89_arg_1=1, var_90=0, var_90_arg_0=0, var_90_arg_1=0, var_91=0, var_91_arg_0=0, var_91_arg_1=1, var_91_arg_2=0, var_92=0, var_92_arg_0=0, var_92_arg_1=2, var_93=0, var_93_arg_0=0, var_93_arg_1=0, var_94=0, var_94_arg_0=0, var_94_arg_1=0, var_94_arg_2=0, var_95=0, var_95_arg_0=0, var_96_arg_0=0, var_96_arg_0 ? var_96_arg_1 : var_96_arg_2=1, var_96_arg_1=1, var_96_arg_2=1] [L395] SORT_1 var_96 = var_96_arg_0 ? var_96_arg_1 : var_96_arg_2; [L396] var_96 = var_96 & mask_SORT_1 [L397] SORT_38 var_97_arg_0 = var_39; [L398] SORT_1 var_97_arg_1 = var_96; [L399] SORT_3 var_97 = ((SORT_3)var_97_arg_0 << 1) | var_97_arg_1; [L400] SORT_1 var_112_arg_0 = var_111; [L401] SORT_3 var_112_arg_1 = var_97; [L402] SORT_3 var_112_arg_2 = var_4; VAL [init_130_arg_1=0, init_132_arg_1=0, init_142_arg_1=0, init_144_arg_1=0, init_146_arg_1=0, init_148_arg_1=1, init_150_arg_1=5, init_155_arg_1=1, init_169_arg_1=1, init_171_arg_1=2, init_173_arg_1=0, init_175_arg_1=0, init_177_arg_1=0, init_179_arg_1=0, init_181_arg_1=0, init_183_arg_1=1, init_185_arg_1=5, init_18_arg_1=2, init_190_arg_1=1, init_204_arg_1=1, init_206_arg_1=2, init_208_arg_1=0, init_210_arg_1=0, init_35_arg_1=0, init_43_arg_1=0, init_48_arg_1=0, init_73_arg_1=0, init_99_arg_1=0, init_9_arg_1=2, input_2=3, input_451=2, input_572=1, mask_SORT_1=1, mask_SORT_3=4294967295, mask_SORT_38=4294967295, mask_SORT_45=7, mask_SORT_6=3, msb_SORT_1=1, msb_SORT_3=2147483648, msb_SORT_38=1073741824, msb_SORT_45=4, msb_SORT_6=2, state_129=0, state_131=0, state_141=0, state_143=0, state_145=0, state_147=1, state_149=5, state_154=1, state_168=1, state_17=2, state_170=2, state_172=0, state_174=0, state_176=0, state_178=0, state_180=0, state_182=1, state_184=5, state_189=1, state_203=1, state_205=2, state_207=0, state_209=0, state_34=0, state_42=0, state_47=0, state_72=0, state_8=2, state_98=0, var_10=1, var_100=1, var_100_arg_0=0, var_100_arg_1=0, var_101=1, var_101_arg_0=0, var_101_arg_1=0, var_102=0, var_102_arg_0=0, var_102_arg_1=1, var_103=1, var_103_arg_0=1, var_103_arg_1=0, var_104=4, var_104_arg_0=1, var_105=0, var_105_arg_0=1, var_105_arg_1=4, var_106=0, var_106_arg_0=0, var_106_arg_1=1, var_107=0, var_107_arg_0=0, var_107_arg_1=4, var_108=0, var_108_arg_0=0, var_108_arg_1=5, var_109=0, var_109_arg_0=0, var_109_arg_1=0, var_11=0, var_110=0, var_110_arg_0=0, var_110_arg_1=0, var_111=0, var_111_arg_0=0, var_111_arg_1=0, var_112_arg_0=0, var_112_arg_1=1, var_112_arg_2=0, var_113=0, var_113_arg_0=0, var_113_arg_1=1, var_114=0, var_114_arg_0=0, var_114_arg_1=1, var_115=0, var_115_arg_0=0, var_115_arg_1=0, var_11_arg_0=2, var_11_arg_1=1, var_12=0, var_12_arg_0=0, var_12_arg_1=1, var_12_arg_2=0, var_13=0, var_13_arg_0=0, var_14=0, var_14_arg_0=0, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=254, var_16_arg_0=0, var_19=0, var_19_arg_0=2, var_19_arg_1=1, var_20=0, var_20_arg_0=0, var_20_arg_1=1, var_20_arg_2=0, var_21=0, var_21_arg_0=0, var_22=0, var_22_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=1, var_24=1, var_24_arg_0=254, var_24_arg_1=0, var_25=0, var_25_arg_0=0, var_26=0, var_26_arg_0=0, var_26_arg_1=1, var_27=1, var_27_arg_0=0, var_28=0, var_28_arg_0=0, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_32=1, var_33=0, var_36=1, var_36_arg_0=0, var_37=1, var_37_arg_0=1, var_37_arg_1=1, var_39=0, var_4=0, var_40=1, var_40_arg_0=0, var_40_arg_1=1, var_41=0, var_44=1, var_44_arg_0=0, var_44_arg_1=0, var_46=0, var_49=1, var_49_arg_0=0, var_49_arg_1=0, var_5=1, var_50=1, var_51=0, var_51_arg_0=0, var_51_arg_1=1, var_52=1, var_52_arg_0=1, var_52_arg_1=0, var_53=1, var_53_arg_0=1, var_54=1, var_54_arg_0=1, var_54_arg_1=1, var_55=0, var_55_arg_0=0, var_55_arg_1=1, var_56=4, var_57=0, var_57_arg_0=0, var_57_arg_1=4, var_58=5, var_59=0, var_59_arg_0=0, var_59_arg_1=5, var_60=0, var_60_arg_0=0, var_60_arg_1=0, var_61=0, var_61_arg_0=0, var_61_arg_1=0, var_62=1, var_62_arg_0=1, var_62_arg_1=0, var_63=1, var_63_arg_0=1, var_63_arg_1=1, var_63_arg_2=0, var_64=0, var_64_arg_0=0, var_64_arg_1=1, var_65=0, var_65_arg_0=0, var_65_arg_1=1, var_66=0, var_66_arg_0=0, var_66_arg_1=0, var_67=1, var_67_arg_0=0, var_67_arg_1=1, var_67_arg_2=1, var_68=1, var_68_arg_0=1, var_69=0, var_69_arg_0=0, var_69_arg_1=1, var_7=2, var_70=0, var_70_arg_0=0, var_70_arg_1=0, var_71_arg_0=0, var_74=255, var_74_arg_0=0, var_75=1, var_75_arg_0=1, var_75_arg_1=255, var_76=2, var_77=0, var_77_arg_0=0, var_77_arg_1=2, var_78=0, var_78_arg_0=0, var_78_arg_1=4, var_79=0, var_79_arg_0=0, var_79_arg_1=0, var_80=0, var_80_arg_0=0, var_80_arg_1=5, var_81=0, var_81_arg_0=0, var_81_arg_1=0, var_82=0, var_82_arg_0=0, var_82_arg_1=1, var_83=0, var_83_arg_0=0, var_83_arg_1=1, var_84=0, var_84_arg_0=0, var_84_arg_1=0, var_85=0, var_85_arg_0=0, var_85_arg_1=0, var_86=3, var_87=0, var_87_arg_0=0, var_87_arg_1=3, var_88=1, var_88_arg_0=0, var_88_arg_1=0, var_89=0, var_89_arg_0=0, var_89_arg_1=1, var_90=0, var_90_arg_0=0, var_90_arg_1=0, var_91=0, var_91_arg_0=0, var_91_arg_1=1, var_91_arg_2=0, var_92=0, var_92_arg_0=0, var_92_arg_1=2, var_93=0, var_93_arg_0=0, var_93_arg_1=0, var_94=0, var_94_arg_0=0, var_94_arg_1=0, var_94_arg_2=0, var_95=0, var_95_arg_0=0, var_96=1, var_96_arg_0=0, var_96_arg_1=1, var_96_arg_2=1, var_97=1, var_97_arg_0=0, var_97_arg_1=1] [L403] EXPR var_112_arg_0 ? var_112_arg_1 : var_112_arg_2 VAL [init_130_arg_1=0, init_132_arg_1=0, init_142_arg_1=0, init_144_arg_1=0, init_146_arg_1=0, init_148_arg_1=1, init_150_arg_1=5, init_155_arg_1=1, init_169_arg_1=1, init_171_arg_1=2, init_173_arg_1=0, init_175_arg_1=0, init_177_arg_1=0, init_179_arg_1=0, init_181_arg_1=0, init_183_arg_1=1, init_185_arg_1=5, init_18_arg_1=2, init_190_arg_1=1, init_204_arg_1=1, init_206_arg_1=2, init_208_arg_1=0, init_210_arg_1=0, init_35_arg_1=0, init_43_arg_1=0, init_48_arg_1=0, init_73_arg_1=0, init_99_arg_1=0, init_9_arg_1=2, input_2=3, input_451=2, input_572=1, mask_SORT_1=1, mask_SORT_3=4294967295, mask_SORT_38=4294967295, mask_SORT_45=7, mask_SORT_6=3, msb_SORT_1=1, msb_SORT_3=2147483648, msb_SORT_38=1073741824, msb_SORT_45=4, msb_SORT_6=2, state_129=0, state_131=0, state_141=0, state_143=0, state_145=0, state_147=1, state_149=5, state_154=1, state_168=1, state_17=2, state_170=2, state_172=0, state_174=0, state_176=0, state_178=0, state_180=0, state_182=1, state_184=5, state_189=1, state_203=1, state_205=2, state_207=0, state_209=0, state_34=0, state_42=0, state_47=0, state_72=0, state_8=2, state_98=0, var_10=1, var_100=1, var_100_arg_0=0, var_100_arg_1=0, var_101=1, var_101_arg_0=0, var_101_arg_1=0, var_102=0, var_102_arg_0=0, var_102_arg_1=1, var_103=1, var_103_arg_0=1, var_103_arg_1=0, var_104=4, var_104_arg_0=1, var_105=0, var_105_arg_0=1, var_105_arg_1=4, var_106=0, var_106_arg_0=0, var_106_arg_1=1, var_107=0, var_107_arg_0=0, var_107_arg_1=4, var_108=0, var_108_arg_0=0, var_108_arg_1=5, var_109=0, var_109_arg_0=0, var_109_arg_1=0, var_11=0, var_110=0, var_110_arg_0=0, var_110_arg_1=0, var_111=0, var_111_arg_0=0, var_111_arg_1=0, var_112_arg_0=0, var_112_arg_0 ? var_112_arg_1 : var_112_arg_2=0, var_112_arg_1=1, var_112_arg_2=0, var_113=0, var_113_arg_0=0, var_113_arg_1=1, var_114=0, var_114_arg_0=0, var_114_arg_1=1, var_115=0, var_115_arg_0=0, var_115_arg_1=0, var_11_arg_0=2, var_11_arg_1=1, var_12=0, var_12_arg_0=0, var_12_arg_1=1, var_12_arg_2=0, var_13=0, var_13_arg_0=0, var_14=0, var_14_arg_0=0, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=254, var_16_arg_0=0, var_19=0, var_19_arg_0=2, var_19_arg_1=1, var_20=0, var_20_arg_0=0, var_20_arg_1=1, var_20_arg_2=0, var_21=0, var_21_arg_0=0, var_22=0, var_22_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=1, var_24=1, var_24_arg_0=254, var_24_arg_1=0, var_25=0, var_25_arg_0=0, var_26=0, var_26_arg_0=0, var_26_arg_1=1, var_27=1, var_27_arg_0=0, var_28=0, var_28_arg_0=0, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_32=1, var_33=0, var_36=1, var_36_arg_0=0, var_37=1, var_37_arg_0=1, var_37_arg_1=1, var_39=0, var_4=0, var_40=1, var_40_arg_0=0, var_40_arg_1=1, var_41=0, var_44=1, var_44_arg_0=0, var_44_arg_1=0, var_46=0, var_49=1, var_49_arg_0=0, var_49_arg_1=0, var_5=1, var_50=1, var_51=0, var_51_arg_0=0, var_51_arg_1=1, var_52=1, var_52_arg_0=1, var_52_arg_1=0, var_53=1, var_53_arg_0=1, var_54=1, var_54_arg_0=1, var_54_arg_1=1, var_55=0, var_55_arg_0=0, var_55_arg_1=1, var_56=4, var_57=0, var_57_arg_0=0, var_57_arg_1=4, var_58=5, var_59=0, var_59_arg_0=0, var_59_arg_1=5, var_60=0, var_60_arg_0=0, var_60_arg_1=0, var_61=0, var_61_arg_0=0, var_61_arg_1=0, var_62=1, var_62_arg_0=1, var_62_arg_1=0, var_63=1, var_63_arg_0=1, var_63_arg_1=1, var_63_arg_2=0, var_64=0, var_64_arg_0=0, var_64_arg_1=1, var_65=0, var_65_arg_0=0, var_65_arg_1=1, var_66=0, var_66_arg_0=0, var_66_arg_1=0, var_67=1, var_67_arg_0=0, var_67_arg_1=1, var_67_arg_2=1, var_68=1, var_68_arg_0=1, var_69=0, var_69_arg_0=0, var_69_arg_1=1, var_7=2, var_70=0, var_70_arg_0=0, var_70_arg_1=0, var_71_arg_0=0, var_74=255, var_74_arg_0=0, var_75=1, var_75_arg_0=1, var_75_arg_1=255, var_76=2, var_77=0, var_77_arg_0=0, var_77_arg_1=2, var_78=0, var_78_arg_0=0, var_78_arg_1=4, var_79=0, var_79_arg_0=0, var_79_arg_1=0, var_80=0, var_80_arg_0=0, var_80_arg_1=5, var_81=0, var_81_arg_0=0, var_81_arg_1=0, var_82=0, var_82_arg_0=0, var_82_arg_1=1, var_83=0, var_83_arg_0=0, var_83_arg_1=1, var_84=0, var_84_arg_0=0, var_84_arg_1=0, var_85=0, var_85_arg_0=0, var_85_arg_1=0, var_86=3, var_87=0, var_87_arg_0=0, var_87_arg_1=3, var_88=1, var_88_arg_0=0, var_88_arg_1=0, var_89=0, var_89_arg_0=0, var_89_arg_1=1, var_90=0, var_90_arg_0=0, var_90_arg_1=0, var_91=0, var_91_arg_0=0, var_91_arg_1=1, var_91_arg_2=0, var_92=0, var_92_arg_0=0, var_92_arg_1=2, var_93=0, var_93_arg_0=0, var_93_arg_1=0, var_94=0, var_94_arg_0=0, var_94_arg_1=0, var_94_arg_2=0, var_95=0, var_95_arg_0=0, var_96=1, var_96_arg_0=0, var_96_arg_1=1, var_96_arg_2=1, var_97=1, var_97_arg_0=0, var_97_arg_1=1] [L403] SORT_3 var_112 = var_112_arg_0 ? var_112_arg_1 : var_112_arg_2; [L404] SORT_1 var_116_arg_0 = var_115; [L405] SORT_3 var_116_arg_1 = var_5; [L406] SORT_3 var_116_arg_2 = var_112; VAL [init_130_arg_1=0, init_132_arg_1=0, init_142_arg_1=0, init_144_arg_1=0, init_146_arg_1=0, init_148_arg_1=1, init_150_arg_1=5, init_155_arg_1=1, init_169_arg_1=1, init_171_arg_1=2, init_173_arg_1=0, init_175_arg_1=0, init_177_arg_1=0, init_179_arg_1=0, init_181_arg_1=0, init_183_arg_1=1, init_185_arg_1=5, init_18_arg_1=2, init_190_arg_1=1, init_204_arg_1=1, init_206_arg_1=2, init_208_arg_1=0, init_210_arg_1=0, init_35_arg_1=0, init_43_arg_1=0, init_48_arg_1=0, init_73_arg_1=0, init_99_arg_1=0, init_9_arg_1=2, input_2=3, input_451=2, input_572=1, mask_SORT_1=1, mask_SORT_3=4294967295, mask_SORT_38=4294967295, mask_SORT_45=7, mask_SORT_6=3, msb_SORT_1=1, msb_SORT_3=2147483648, msb_SORT_38=1073741824, msb_SORT_45=4, msb_SORT_6=2, state_129=0, state_131=0, state_141=0, state_143=0, state_145=0, state_147=1, state_149=5, state_154=1, state_168=1, state_17=2, state_170=2, state_172=0, state_174=0, state_176=0, state_178=0, state_180=0, state_182=1, state_184=5, state_189=1, state_203=1, state_205=2, state_207=0, state_209=0, state_34=0, state_42=0, state_47=0, state_72=0, state_8=2, state_98=0, var_10=1, var_100=1, var_100_arg_0=0, var_100_arg_1=0, var_101=1, var_101_arg_0=0, var_101_arg_1=0, var_102=0, var_102_arg_0=0, var_102_arg_1=1, var_103=1, var_103_arg_0=1, var_103_arg_1=0, var_104=4, var_104_arg_0=1, var_105=0, var_105_arg_0=1, var_105_arg_1=4, var_106=0, var_106_arg_0=0, var_106_arg_1=1, var_107=0, var_107_arg_0=0, var_107_arg_1=4, var_108=0, var_108_arg_0=0, var_108_arg_1=5, var_109=0, var_109_arg_0=0, var_109_arg_1=0, var_11=0, var_110=0, var_110_arg_0=0, var_110_arg_1=0, var_111=0, var_111_arg_0=0, var_111_arg_1=0, var_112=0, var_112_arg_0=0, var_112_arg_1=1, var_112_arg_2=0, var_113=0, var_113_arg_0=0, var_113_arg_1=1, var_114=0, var_114_arg_0=0, var_114_arg_1=1, var_115=0, var_115_arg_0=0, var_115_arg_1=0, var_116_arg_0=0, var_116_arg_1=1, var_116_arg_2=0, var_11_arg_0=2, var_11_arg_1=1, var_12=0, var_12_arg_0=0, var_12_arg_1=1, var_12_arg_2=0, var_13=0, var_13_arg_0=0, var_14=0, var_14_arg_0=0, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=254, var_16_arg_0=0, var_19=0, var_19_arg_0=2, var_19_arg_1=1, var_20=0, var_20_arg_0=0, var_20_arg_1=1, var_20_arg_2=0, var_21=0, var_21_arg_0=0, var_22=0, var_22_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=1, var_24=1, var_24_arg_0=254, var_24_arg_1=0, var_25=0, var_25_arg_0=0, var_26=0, var_26_arg_0=0, var_26_arg_1=1, var_27=1, var_27_arg_0=0, var_28=0, var_28_arg_0=0, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_32=1, var_33=0, var_36=1, var_36_arg_0=0, var_37=1, var_37_arg_0=1, var_37_arg_1=1, var_39=0, var_4=0, var_40=1, var_40_arg_0=0, var_40_arg_1=1, var_41=0, var_44=1, var_44_arg_0=0, var_44_arg_1=0, var_46=0, var_49=1, var_49_arg_0=0, var_49_arg_1=0, var_5=1, var_50=1, var_51=0, var_51_arg_0=0, var_51_arg_1=1, var_52=1, var_52_arg_0=1, var_52_arg_1=0, var_53=1, var_53_arg_0=1, var_54=1, var_54_arg_0=1, var_54_arg_1=1, var_55=0, var_55_arg_0=0, var_55_arg_1=1, var_56=4, var_57=0, var_57_arg_0=0, var_57_arg_1=4, var_58=5, var_59=0, var_59_arg_0=0, var_59_arg_1=5, var_60=0, var_60_arg_0=0, var_60_arg_1=0, var_61=0, var_61_arg_0=0, var_61_arg_1=0, var_62=1, var_62_arg_0=1, var_62_arg_1=0, var_63=1, var_63_arg_0=1, var_63_arg_1=1, var_63_arg_2=0, var_64=0, var_64_arg_0=0, var_64_arg_1=1, var_65=0, var_65_arg_0=0, var_65_arg_1=1, var_66=0, var_66_arg_0=0, var_66_arg_1=0, var_67=1, var_67_arg_0=0, var_67_arg_1=1, var_67_arg_2=1, var_68=1, var_68_arg_0=1, var_69=0, var_69_arg_0=0, var_69_arg_1=1, var_7=2, var_70=0, var_70_arg_0=0, var_70_arg_1=0, var_71_arg_0=0, var_74=255, var_74_arg_0=0, var_75=1, var_75_arg_0=1, var_75_arg_1=255, var_76=2, var_77=0, var_77_arg_0=0, var_77_arg_1=2, var_78=0, var_78_arg_0=0, var_78_arg_1=4, var_79=0, var_79_arg_0=0, var_79_arg_1=0, var_80=0, var_80_arg_0=0, var_80_arg_1=5, var_81=0, var_81_arg_0=0, var_81_arg_1=0, var_82=0, var_82_arg_0=0, var_82_arg_1=1, var_83=0, var_83_arg_0=0, var_83_arg_1=1, var_84=0, var_84_arg_0=0, var_84_arg_1=0, var_85=0, var_85_arg_0=0, var_85_arg_1=0, var_86=3, var_87=0, var_87_arg_0=0, var_87_arg_1=3, var_88=1, var_88_arg_0=0, var_88_arg_1=0, var_89=0, var_89_arg_0=0, var_89_arg_1=1, var_90=0, var_90_arg_0=0, var_90_arg_1=0, var_91=0, var_91_arg_0=0, var_91_arg_1=1, var_91_arg_2=0, var_92=0, var_92_arg_0=0, var_92_arg_1=2, var_93=0, var_93_arg_0=0, var_93_arg_1=0, var_94=0, var_94_arg_0=0, var_94_arg_1=0, var_94_arg_2=0, var_95=0, var_95_arg_0=0, var_96=1, var_96_arg_0=0, var_96_arg_1=1, var_96_arg_2=1, var_97=1, var_97_arg_0=0, var_97_arg_1=1] [L407] EXPR var_116_arg_0 ? var_116_arg_1 : var_116_arg_2 VAL [init_130_arg_1=0, init_132_arg_1=0, init_142_arg_1=0, init_144_arg_1=0, init_146_arg_1=0, init_148_arg_1=1, init_150_arg_1=5, init_155_arg_1=1, init_169_arg_1=1, init_171_arg_1=2, init_173_arg_1=0, init_175_arg_1=0, init_177_arg_1=0, init_179_arg_1=0, init_181_arg_1=0, init_183_arg_1=1, init_185_arg_1=5, init_18_arg_1=2, init_190_arg_1=1, init_204_arg_1=1, init_206_arg_1=2, init_208_arg_1=0, init_210_arg_1=0, init_35_arg_1=0, init_43_arg_1=0, init_48_arg_1=0, init_73_arg_1=0, init_99_arg_1=0, init_9_arg_1=2, input_2=3, input_451=2, input_572=1, mask_SORT_1=1, mask_SORT_3=4294967295, mask_SORT_38=4294967295, mask_SORT_45=7, mask_SORT_6=3, msb_SORT_1=1, msb_SORT_3=2147483648, msb_SORT_38=1073741824, msb_SORT_45=4, msb_SORT_6=2, state_129=0, state_131=0, state_141=0, state_143=0, state_145=0, state_147=1, state_149=5, state_154=1, state_168=1, state_17=2, state_170=2, state_172=0, state_174=0, state_176=0, state_178=0, state_180=0, state_182=1, state_184=5, state_189=1, state_203=1, state_205=2, state_207=0, state_209=0, state_34=0, state_42=0, state_47=0, state_72=0, state_8=2, state_98=0, var_10=1, var_100=1, var_100_arg_0=0, var_100_arg_1=0, var_101=1, var_101_arg_0=0, var_101_arg_1=0, var_102=0, var_102_arg_0=0, var_102_arg_1=1, var_103=1, var_103_arg_0=1, var_103_arg_1=0, var_104=4, var_104_arg_0=1, var_105=0, var_105_arg_0=1, var_105_arg_1=4, var_106=0, var_106_arg_0=0, var_106_arg_1=1, var_107=0, var_107_arg_0=0, var_107_arg_1=4, var_108=0, var_108_arg_0=0, var_108_arg_1=5, var_109=0, var_109_arg_0=0, var_109_arg_1=0, var_11=0, var_110=0, var_110_arg_0=0, var_110_arg_1=0, var_111=0, var_111_arg_0=0, var_111_arg_1=0, var_112=0, var_112_arg_0=0, var_112_arg_1=1, var_112_arg_2=0, var_113=0, var_113_arg_0=0, var_113_arg_1=1, var_114=0, var_114_arg_0=0, var_114_arg_1=1, var_115=0, var_115_arg_0=0, var_115_arg_1=0, var_116_arg_0=0, var_116_arg_0 ? var_116_arg_1 : var_116_arg_2=0, var_116_arg_1=1, var_116_arg_2=0, var_11_arg_0=2, var_11_arg_1=1, var_12=0, var_12_arg_0=0, var_12_arg_1=1, var_12_arg_2=0, var_13=0, var_13_arg_0=0, var_14=0, var_14_arg_0=0, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=254, var_16_arg_0=0, var_19=0, var_19_arg_0=2, var_19_arg_1=1, var_20=0, var_20_arg_0=0, var_20_arg_1=1, var_20_arg_2=0, var_21=0, var_21_arg_0=0, var_22=0, var_22_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=1, var_24=1, var_24_arg_0=254, var_24_arg_1=0, var_25=0, var_25_arg_0=0, var_26=0, var_26_arg_0=0, var_26_arg_1=1, var_27=1, var_27_arg_0=0, var_28=0, var_28_arg_0=0, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_32=1, var_33=0, var_36=1, var_36_arg_0=0, var_37=1, var_37_arg_0=1, var_37_arg_1=1, var_39=0, var_4=0, var_40=1, var_40_arg_0=0, var_40_arg_1=1, var_41=0, var_44=1, var_44_arg_0=0, var_44_arg_1=0, var_46=0, var_49=1, var_49_arg_0=0, var_49_arg_1=0, var_5=1, var_50=1, var_51=0, var_51_arg_0=0, var_51_arg_1=1, var_52=1, var_52_arg_0=1, var_52_arg_1=0, var_53=1, var_53_arg_0=1, var_54=1, var_54_arg_0=1, var_54_arg_1=1, var_55=0, var_55_arg_0=0, var_55_arg_1=1, var_56=4, var_57=0, var_57_arg_0=0, var_57_arg_1=4, var_58=5, var_59=0, var_59_arg_0=0, var_59_arg_1=5, var_60=0, var_60_arg_0=0, var_60_arg_1=0, var_61=0, var_61_arg_0=0, var_61_arg_1=0, var_62=1, var_62_arg_0=1, var_62_arg_1=0, var_63=1, var_63_arg_0=1, var_63_arg_1=1, var_63_arg_2=0, var_64=0, var_64_arg_0=0, var_64_arg_1=1, var_65=0, var_65_arg_0=0, var_65_arg_1=1, var_66=0, var_66_arg_0=0, var_66_arg_1=0, var_67=1, var_67_arg_0=0, var_67_arg_1=1, var_67_arg_2=1, var_68=1, var_68_arg_0=1, var_69=0, var_69_arg_0=0, var_69_arg_1=1, var_7=2, var_70=0, var_70_arg_0=0, var_70_arg_1=0, var_71_arg_0=0, var_74=255, var_74_arg_0=0, var_75=1, var_75_arg_0=1, var_75_arg_1=255, var_76=2, var_77=0, var_77_arg_0=0, var_77_arg_1=2, var_78=0, var_78_arg_0=0, var_78_arg_1=4, var_79=0, var_79_arg_0=0, var_79_arg_1=0, var_80=0, var_80_arg_0=0, var_80_arg_1=5, var_81=0, var_81_arg_0=0, var_81_arg_1=0, var_82=0, var_82_arg_0=0, var_82_arg_1=1, var_83=0, var_83_arg_0=0, var_83_arg_1=1, var_84=0, var_84_arg_0=0, var_84_arg_1=0, var_85=0, var_85_arg_0=0, var_85_arg_1=0, var_86=3, var_87=0, var_87_arg_0=0, var_87_arg_1=3, var_88=1, var_88_arg_0=0, var_88_arg_1=0, var_89=0, var_89_arg_0=0, var_89_arg_1=1, var_90=0, var_90_arg_0=0, var_90_arg_1=0, var_91=0, var_91_arg_0=0, var_91_arg_1=1, var_91_arg_2=0, var_92=0, var_92_arg_0=0, var_92_arg_1=2, var_93=0, var_93_arg_0=0, var_93_arg_1=0, var_94=0, var_94_arg_0=0, var_94_arg_1=0, var_94_arg_2=0, var_95=0, var_95_arg_0=0, var_96=1, var_96_arg_0=0, var_96_arg_1=1, var_96_arg_2=1, var_97=1, var_97_arg_0=0, var_97_arg_1=1] [L407] SORT_3 var_116 = var_116_arg_0 ? var_116_arg_1 : var_116_arg_2; [L408] SORT_3 var_117_arg_0 = var_116; [L409] SORT_1 var_117 = var_117_arg_0 >> 0; [L410] var_117 = var_117 & mask_SORT_1 [L411] SORT_1 var_118_arg_0 = var_71; [L412] SORT_1 var_118_arg_1 = var_117; [L413] SORT_1 var_118 = var_118_arg_0 | var_118_arg_1; [L414] SORT_1 var_119_arg_0 = var_31; [L415] SORT_1 var_119_arg_1 = var_118; [L416] SORT_1 var_119 = var_119_arg_0 & var_119_arg_1; [L417] SORT_1 var_122_arg_0 = var_119; [L418] SORT_1 var_122 = ~var_122_arg_0; [L419] SORT_1 var_123_arg_0 = var_32; [L420] SORT_1 var_123_arg_1 = var_122; [L421] SORT_1 var_123 = var_123_arg_0 & var_123_arg_1; [L422] var_123 = var_123 & mask_SORT_1 [L423] SORT_1 bad_124_arg_0 = var_123; [L424] CALL __VERIFIER_assert(!(bad_124_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 1 procedures, 423 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 45.6s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 16.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16657 SdHoareTripleChecker+Valid, 15.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16657 mSDsluCounter, 18063 SdHoareTripleChecker+Invalid, 14.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13322 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 896 IncrementalHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 4741 mSDtfsCounter, 896 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=441occurred in iteration=8, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 3764 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 8.7s SatisfiabilityAnalysisTime, 18.0s InterpolantComputationTime, 207 NumberOfCodeBlocks, 207 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 176 ConstructedInterpolants, 0 QuantifiedInterpolants, 1170 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-02 21:03:47,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/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_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_two.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/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_847c46a6-3b1e-48d1-aec0-908acf19a9c2/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 16d0a229e446ebb3f7632dc27a51dec3b716b02668fde06be2a0b6ed60024488 --- 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 21:03:49,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:03:49,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:03:49,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:03:49,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:03:49,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:03:49,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:03:49,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:03:49,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:03:49,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:03:49,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:03:49,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:03:49,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:03:49,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:03:49,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:03:49,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:03:49,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:03:49,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:03:49,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:03:49,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:03:49,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:03:49,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:03:49,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:03:49,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:03:49,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:03:49,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:03:49,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:03:49,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:03:49,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:03:49,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:03:49,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:03:49,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:03:49,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:03:49,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:03:49,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:03:49,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:03:49,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:03:49,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:03:49,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:03:49,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:03:49,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:03:49,830 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-02 21:03:49,853 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:03:49,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:03:49,854 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:03:49,854 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:03:49,855 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:03:49,855 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:03:49,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:03:49,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:03:49,856 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:03:49,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:03:49,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:03:49,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:03:49,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:03:49,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:03:49,858 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 21:03:49,858 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-02 21:03:49,858 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-02 21:03:49,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:03:49,858 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:03:49,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:03:49,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:03:49,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:03:49,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:03:49,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:03:49,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:03:49,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:03:49,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:03:49,861 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-02 21:03:49,861 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-02 21:03:49,861 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:03:49,862 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:03:49,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:03:49,862 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-02 21:03:49,862 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_847c46a6-3b1e-48d1-aec0-908acf19a9c2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16d0a229e446ebb3f7632dc27a51dec3b716b02668fde06be2a0b6ed60024488 [2022-11-02 21:03:50,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:03:50,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:03:50,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:03:50,268 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:03:50,270 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:03:50,272 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_two.c [2022-11-02 21:03:50,362 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/data/75c90255f/fd43b6edbffe427dbeaf04bead909d5f/FLAGdc4a76f1e [2022-11-02 21:03:51,227 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:03:51,228 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_two.c [2022-11-02 21:03:51,253 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/data/75c90255f/fd43b6edbffe427dbeaf04bead909d5f/FLAGdc4a76f1e [2022-11-02 21:03:51,349 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/data/75c90255f/fd43b6edbffe427dbeaf04bead909d5f [2022-11-02 21:03:51,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:03:51,353 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:03:51,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:03:51,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:03:51,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:03:51,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:03:51" (1/1) ... [2022-11-02 21:03:51,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58f3ab57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:51, skipping insertion in model container [2022-11-02 21:03:51,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:03:51" (1/1) ... [2022-11-02 21:03:51,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:03:51,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:03:51,637 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_847c46a6-3b1e-48d1-aec0-908acf19a9c2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_two.c[1107,1120] [2022-11-02 21:03:52,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:03:52,138 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:03:52,155 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_847c46a6-3b1e-48d1-aec0-908acf19a9c2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_two.c[1107,1120] [2022-11-02 21:03:52,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:03:52,404 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:03:52,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:52 WrapperNode [2022-11-02 21:03:52,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:03:52,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:03:52,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:03:52,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:03:52,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:52" (1/1) ... [2022-11-02 21:03:52,498 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:52" (1/1) ... [2022-11-02 21:03:52,646 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2782 [2022-11-02 21:03:52,646 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:03:52,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:03:52,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:03:52,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:03:52,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:52" (1/1) ... [2022-11-02 21:03:52,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:52" (1/1) ... [2022-11-02 21:03:52,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:52" (1/1) ... [2022-11-02 21:03:52,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:52" (1/1) ... [2022-11-02 21:03:52,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:52" (1/1) ... [2022-11-02 21:03:52,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:52" (1/1) ... [2022-11-02 21:03:52,805 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:52" (1/1) ... [2022-11-02 21:03:52,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:52" (1/1) ... [2022-11-02 21:03:52,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:03:52,854 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:03:52,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:03:52,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:03:52,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:52" (1/1) ... [2022-11-02 21:03:52,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:03:52,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:03:52,894 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:03:52,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:03:52,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:03:52,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:03:53,572 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:03:53,574 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:03:55,710 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:03:55,722 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:03:55,723 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 21:03:55,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:03:55 BoogieIcfgContainer [2022-11-02 21:03:55,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:03:55,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:03:55,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:03:55,731 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:03:55,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:03:51" (1/3) ... [2022-11-02 21:03:55,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27f20c27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:03:55, skipping insertion in model container [2022-11-02 21:03:55,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:52" (2/3) ... [2022-11-02 21:03:55,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27f20c27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:03:55, skipping insertion in model container [2022-11-02 21:03:55,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:03:55" (3/3) ... [2022-11-02 21:03:55,735 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cache_coherence_two.c [2022-11-02 21:03:55,756 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:03:55,756 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 21:03:55,882 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:03:55,890 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;@58ea50fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:03:55,891 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 21:03:55,898 INFO L276 IsEmpty]: Start isEmpty. Operand has 423 states, 421 states have (on average 1.498812351543943) internal successors, (631), 422 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:55,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 21:03:55,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:03:55,907 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:55,908 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:03:55,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:55,916 INFO L85 PathProgramCache]: Analyzing trace with hash 930684715, now seen corresponding path program 1 times [2022-11-02 21:03:55,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:03:55,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [870781219] [2022-11-02 21:03:55,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:55,937 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:03:55,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:03:55,942 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:03:55,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-02 21:03:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:56,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:03:56,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:03:56,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:03:56,817 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:03:56,818 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:03:56,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [870781219] [2022-11-02 21:03:56,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [870781219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:56,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:03:56,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:03:56,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268611944] [2022-11-02 21:03:56,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:56,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:03:56,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:03:56,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:03:56,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:03:56,875 INFO L87 Difference]: Start difference. First operand has 423 states, 421 states have (on average 1.498812351543943) internal successors, (631), 422 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:57,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:03:57,492 INFO L93 Difference]: Finished difference Result 1673 states and 2507 transitions. [2022-11-02 21:03:57,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:03:57,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-02 21:03:57,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:03:57,528 INFO L225 Difference]: With dead ends: 1673 [2022-11-02 21:03:57,528 INFO L226 Difference]: Without dead ends: 1252 [2022-11-02 21:03:57,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 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 21:03:57,537 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 1862 mSDsluCounter, 1784 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1862 SdHoareTripleChecker+Valid, 2369 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:03:57,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1862 Valid, 2369 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:03:57,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2022-11-02 21:03:57,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 421. [2022-11-02 21:03:57,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.4928571428571429) internal successors, (627), 420 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:57,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 627 transitions. [2022-11-02 21:03:57,631 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 627 transitions. Word has length 23 [2022-11-02 21:03:57,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:03:57,632 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 627 transitions. [2022-11-02 21:03:57,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:57,633 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 627 transitions. [2022-11-02 21:03:57,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 21:03:57,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:03:57,635 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:57,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-02 21:03:57,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:03:57,853 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:03:57,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:57,853 INFO L85 PathProgramCache]: Analyzing trace with hash 113036265, now seen corresponding path program 1 times [2022-11-02 21:03:57,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:03:57,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1763960385] [2022-11-02 21:03:57,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:57,854 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:03:57,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:03:57,857 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:03:57,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-02 21:03:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:58,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:03:58,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:03:58,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:03:58,518 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:03:58,518 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:03:58,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1763960385] [2022-11-02 21:03:58,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1763960385] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:58,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:03:58,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:03:58,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015845175] [2022-11-02 21:03:58,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:58,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:03:58,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:03:58,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:03:58,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:03:58,527 INFO L87 Difference]: Start difference. First operand 421 states and 627 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:58,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:03:58,940 INFO L93 Difference]: Finished difference Result 1669 states and 2491 transitions. [2022-11-02 21:03:58,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:03:58,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-02 21:03:58,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:03:58,949 INFO L225 Difference]: With dead ends: 1669 [2022-11-02 21:03:58,949 INFO L226 Difference]: Without dead ends: 1252 [2022-11-02 21:03:58,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 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 21:03:58,956 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 1856 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1856 SdHoareTripleChecker+Valid, 2368 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:03:58,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1856 Valid, 2368 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 21:03:58,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2022-11-02 21:03:58,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 423. [2022-11-02 21:03:58,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 422 states have (on average 1.490521327014218) internal successors, (629), 422 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:58,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 629 transitions. [2022-11-02 21:03:58,985 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 629 transitions. Word has length 23 [2022-11-02 21:03:58,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:03:58,986 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 629 transitions. [2022-11-02 21:03:58,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:58,986 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 629 transitions. [2022-11-02 21:03:58,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 21:03:58,987 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:03:58,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:59,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-02 21:03:59,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:03:59,201 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:03:59,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:59,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1881108441, now seen corresponding path program 1 times [2022-11-02 21:03:59,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:03:59,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730422704] [2022-11-02 21:03:59,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:59,203 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:03:59,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:03:59,209 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:03:59,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-02 21:03:59,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:59,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-02 21:03:59,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:00,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:00,023 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:00,023 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:00,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730422704] [2022-11-02 21:04:00,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [730422704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:00,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:00,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:04:00,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134170081] [2022-11-02 21:04:00,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:00,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:04:00,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:00,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:04:00,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:04:00,026 INFO L87 Difference]: Start difference. First operand 423 states and 629 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:00,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:00,291 INFO L93 Difference]: Finished difference Result 842 states and 1255 transitions. [2022-11-02 21:04:00,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:04:00,293 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-02 21:04:00,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:00,295 INFO L225 Difference]: With dead ends: 842 [2022-11-02 21:04:00,295 INFO L226 Difference]: Without dead ends: 425 [2022-11-02 21:04:00,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 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 21:04:00,298 INFO L413 NwaCegarLoop]: 622 mSDtfsCounter, 1 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1809 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:00,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1809 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 5 Unchecked, 0.2s Time] [2022-11-02 21:04:00,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2022-11-02 21:04:00,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 425. [2022-11-02 21:04:00,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 424 states have (on average 1.4882075471698113) internal successors, (631), 424 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:00,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 631 transitions. [2022-11-02 21:04:00,318 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 631 transitions. Word has length 23 [2022-11-02 21:04:00,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:00,318 INFO L495 AbstractCegarLoop]: Abstraction has 425 states and 631 transitions. [2022-11-02 21:04:00,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:00,319 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 631 transitions. [2022-11-02 21:04:00,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 21:04:00,320 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:00,320 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:00,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:00,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:00,534 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:00,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:00,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1392790501, now seen corresponding path program 1 times [2022-11-02 21:04:00,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:00,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [961504030] [2022-11-02 21:04:00,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:00,536 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:00,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:00,542 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:00,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-02 21:04:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:01,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-02 21:04:01,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:01,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:01,202 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:01,202 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:01,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [961504030] [2022-11-02 21:04:01,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [961504030] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:01,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:01,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:01,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885166486] [2022-11-02 21:04:01,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:01,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:01,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:01,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:01,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:01,205 INFO L87 Difference]: Start difference. First operand 425 states and 631 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:01,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:01,808 INFO L93 Difference]: Finished difference Result 1674 states and 2496 transitions. [2022-11-02 21:04:01,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:01,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-02 21:04:01,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:01,813 INFO L225 Difference]: With dead ends: 1674 [2022-11-02 21:04:01,814 INFO L226 Difference]: Without dead ends: 1257 [2022-11-02 21:04:01,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 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 21:04:01,816 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 2472 mSDsluCounter, 2969 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2472 SdHoareTripleChecker+Valid, 3538 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:01,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2472 Valid, 3538 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:04:01,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2022-11-02 21:04:01,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 427. [2022-11-02 21:04:01,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 426 states have (on average 1.4859154929577465) internal successors, (633), 426 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:01,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 633 transitions. [2022-11-02 21:04:01,832 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 633 transitions. Word has length 23 [2022-11-02 21:04:01,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:01,833 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 633 transitions. [2022-11-02 21:04:01,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:01,833 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 633 transitions. [2022-11-02 21:04:01,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 21:04:01,834 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:01,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:01,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-11-02 21:04:02,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:02,048 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:02,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:02,049 INFO L85 PathProgramCache]: Analyzing trace with hash 381673251, now seen corresponding path program 1 times [2022-11-02 21:04:02,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:02,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1503970939] [2022-11-02 21:04:02,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:02,050 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:02,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:02,051 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:02,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-02 21:04:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:02,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-02 21:04:02,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:02,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:02,969 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:02,969 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:02,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1503970939] [2022-11-02 21:04:02,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1503970939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:02,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:02,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:04:02,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875371264] [2022-11-02 21:04:02,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:02,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:04:02,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:02,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:04:02,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:04:02,979 INFO L87 Difference]: Start difference. First operand 427 states and 633 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:03,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:03,597 INFO L93 Difference]: Finished difference Result 1669 states and 2488 transitions. [2022-11-02 21:04:03,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:04:03,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-02 21:04:03,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:03,602 INFO L225 Difference]: With dead ends: 1669 [2022-11-02 21:04:03,602 INFO L226 Difference]: Without dead ends: 1252 [2022-11-02 21:04:03,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:03,604 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 1838 mSDsluCounter, 1722 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1838 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:03,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1838 Valid, 2290 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:04:03,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2022-11-02 21:04:03,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 429. [2022-11-02 21:04:03,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 428 states have (on average 1.483644859813084) internal successors, (635), 428 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:03,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 635 transitions. [2022-11-02 21:04:03,622 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 635 transitions. Word has length 23 [2022-11-02 21:04:03,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:03,622 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 635 transitions. [2022-11-02 21:04:03,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:03,623 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 635 transitions. [2022-11-02 21:04:03,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 21:04:03,624 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:03,624 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:03,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:03,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:03,838 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:03,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:03,839 INFO L85 PathProgramCache]: Analyzing trace with hash 639838689, now seen corresponding path program 1 times [2022-11-02 21:04:03,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:03,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [89446968] [2022-11-02 21:04:03,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:03,840 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:03,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:03,841 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:03,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-02 21:04:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:04,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-02 21:04:04,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:04,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:04,461 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:04,461 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:04,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [89446968] [2022-11-02 21:04:04,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [89446968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:04,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:04,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:04,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854317739] [2022-11-02 21:04:04,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:04,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:04,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:04,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:04,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:04,464 INFO L87 Difference]: Start difference. First operand 429 states and 635 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:05,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:05,176 INFO L93 Difference]: Finished difference Result 1678 states and 2500 transitions. [2022-11-02 21:04:05,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:05,177 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-02 21:04:05,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:05,181 INFO L225 Difference]: With dead ends: 1678 [2022-11-02 21:04:05,182 INFO L226 Difference]: Without dead ends: 1261 [2022-11-02 21:04:05,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 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 21:04:05,188 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 2466 mSDsluCounter, 2903 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2466 SdHoareTripleChecker+Valid, 3446 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:05,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2466 Valid, 3446 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 21:04:05,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2022-11-02 21:04:05,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 431. [2022-11-02 21:04:05,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 430 states have (on average 1.4813953488372094) internal successors, (637), 430 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:05,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 637 transitions. [2022-11-02 21:04:05,205 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 637 transitions. Word has length 23 [2022-11-02 21:04:05,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:05,206 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 637 transitions. [2022-11-02 21:04:05,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:05,207 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 637 transitions. [2022-11-02 21:04:05,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 21:04:05,207 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:05,207 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:05,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:05,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:05,427 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:05,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:05,427 INFO L85 PathProgramCache]: Analyzing trace with hash 246811679, now seen corresponding path program 1 times [2022-11-02 21:04:05,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:05,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2043651272] [2022-11-02 21:04:05,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:05,428 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:05,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:05,429 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:05,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-02 21:04:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:05,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-02 21:04:05,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:06,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:06,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:06,031 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:06,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2043651272] [2022-11-02 21:04:06,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2043651272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:06,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:06,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:04:06,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829821512] [2022-11-02 21:04:06,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:06,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:04:06,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:06,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:04:06,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:04:06,033 INFO L87 Difference]: Start difference. First operand 431 states and 637 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:07,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:07,038 INFO L93 Difference]: Finished difference Result 2104 states and 3133 transitions. [2022-11-02 21:04:07,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:04:07,038 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-02 21:04:07,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:07,044 INFO L225 Difference]: With dead ends: 2104 [2022-11-02 21:04:07,044 INFO L226 Difference]: Without dead ends: 1687 [2022-11-02 21:04:07,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:04:07,046 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 4942 mSDsluCounter, 3480 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4942 SdHoareTripleChecker+Valid, 4065 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:07,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4942 Valid, 4065 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-02 21:04:07,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2022-11-02 21:04:07,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 435. [2022-11-02 21:04:07,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 434 states have (on average 1.4792626728110598) internal successors, (642), 434 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:07,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 642 transitions. [2022-11-02 21:04:07,065 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 642 transitions. Word has length 23 [2022-11-02 21:04:07,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:07,065 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 642 transitions. [2022-11-02 21:04:07,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:07,066 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 642 transitions. [2022-11-02 21:04:07,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 21:04:07,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:07,067 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:07,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:07,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:07,281 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:07,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:07,281 INFO L85 PathProgramCache]: Analyzing trace with hash -562534947, now seen corresponding path program 1 times [2022-11-02 21:04:07,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:07,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282574612] [2022-11-02 21:04:07,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:07,282 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:07,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:07,284 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:07,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-02 21:04:07,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:07,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-02 21:04:07,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:07,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:07,936 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:07,936 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:07,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1282574612] [2022-11-02 21:04:07,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1282574612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:07,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:07,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:07,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610869398] [2022-11-02 21:04:07,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:07,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:07,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:07,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:07,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:07,939 INFO L87 Difference]: Start difference. First operand 435 states and 642 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:08,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:08,530 INFO L93 Difference]: Finished difference Result 1690 states and 2513 transitions. [2022-11-02 21:04:08,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:08,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-02 21:04:08,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:08,535 INFO L225 Difference]: With dead ends: 1690 [2022-11-02 21:04:08,536 INFO L226 Difference]: Without dead ends: 1269 [2022-11-02 21:04:08,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 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 21:04:08,537 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 2447 mSDsluCounter, 2944 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2447 SdHoareTripleChecker+Valid, 3524 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:08,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2447 Valid, 3524 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:04:08,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2022-11-02 21:04:08,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 441. [2022-11-02 21:04:08,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 440 states have (on average 1.475) internal successors, (649), 440 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:08,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 649 transitions. [2022-11-02 21:04:08,552 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 649 transitions. Word has length 23 [2022-11-02 21:04:08,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:08,553 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 649 transitions. [2022-11-02 21:04:08,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:08,553 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 649 transitions. [2022-11-02 21:04:08,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 21:04:08,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:08,554 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:08,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:08,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:08,768 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:08,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:08,769 INFO L85 PathProgramCache]: Analyzing trace with hash -562475365, now seen corresponding path program 1 times [2022-11-02 21:04:08,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:08,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [139740833] [2022-11-02 21:04:08,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:08,770 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:08,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:08,771 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:08,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-02 21:04:09,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:09,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 51 conjunts are in the unsatisfiable core [2022-11-02 21:04:09,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:09,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:09,618 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:09,618 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:09,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [139740833] [2022-11-02 21:04:09,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [139740833] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:09,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:09,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 21:04:09,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194095432] [2022-11-02 21:04:09,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:09,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:04:09,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:09,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:04:09,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:04:09,621 INFO L87 Difference]: Start difference. First operand 441 states and 649 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:10,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:10,167 INFO L93 Difference]: Finished difference Result 863 states and 1278 transitions. [2022-11-02 21:04:10,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 21:04:10,168 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-02 21:04:10,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:10,171 INFO L225 Difference]: With dead ends: 863 [2022-11-02 21:04:10,171 INFO L226 Difference]: Without dead ends: 861 [2022-11-02 21:04:10,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-11-02 21:04:10,173 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 627 mSDsluCounter, 4145 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 4779 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 98 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:10,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 4779 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 210 Invalid, 0 Unknown, 98 Unchecked, 0.4s Time] [2022-11-02 21:04:10,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2022-11-02 21:04:10,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 443. [2022-11-02 21:04:10,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 442 states have (on average 1.4728506787330318) internal successors, (651), 442 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:10,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 651 transitions. [2022-11-02 21:04:10,186 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 651 transitions. Word has length 23 [2022-11-02 21:04:10,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:10,187 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 651 transitions. [2022-11-02 21:04:10,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:10,187 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 651 transitions. [2022-11-02 21:04:10,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:10,194 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:10,194 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:10,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:10,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:10,408 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:10,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:10,409 INFO L85 PathProgramCache]: Analyzing trace with hash -899505265, now seen corresponding path program 1 times [2022-11-02 21:04:10,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:10,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1697704868] [2022-11-02 21:04:10,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:10,412 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:10,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:10,413 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:10,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-02 21:04:11,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:11,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:04:11,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:11,587 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:11,587 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:11,587 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:11,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1697704868] [2022-11-02 21:04:11,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1697704868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:11,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:11,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:04:11,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308015867] [2022-11-02 21:04:11,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:11,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:04:11,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:11,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:04:11,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:04:11,591 INFO L87 Difference]: Start difference. First operand 443 states and 651 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:11,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:11,672 INFO L93 Difference]: Finished difference Result 1679 states and 2497 transitions. [2022-11-02 21:04:11,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:04:11,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:04:11,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:11,678 INFO L225 Difference]: With dead ends: 1679 [2022-11-02 21:04:11,678 INFO L226 Difference]: Without dead ends: 1258 [2022-11-02 21:04:11,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 435 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 21:04:11,680 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 1801 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1801 SdHoareTripleChecker+Valid, 2455 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:11,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1801 Valid, 2455 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:04:11,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2022-11-02 21:04:11,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 445. [2022-11-02 21:04:11,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 444 states have (on average 1.4707207207207207) internal successors, (653), 444 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:11,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 653 transitions. [2022-11-02 21:04:11,695 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 653 transitions. Word has length 438 [2022-11-02 21:04:11,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:11,696 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 653 transitions. [2022-11-02 21:04:11,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:11,696 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 653 transitions. [2022-11-02 21:04:11,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:11,704 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:11,705 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:11,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:11,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:11,921 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:11,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:11,922 INFO L85 PathProgramCache]: Analyzing trace with hash 873845777, now seen corresponding path program 1 times [2022-11-02 21:04:11,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:11,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [797312872] [2022-11-02 21:04:11,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:11,924 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:11,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:11,925 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:11,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-02 21:04:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:13,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:04:13,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:13,124 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:13,124 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:13,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:13,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [797312872] [2022-11-02 21:04:13,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [797312872] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:13,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:13,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:04:13,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787024327] [2022-11-02 21:04:13,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:13,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:04:13,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:13,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:04:13,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:04:13,128 INFO L87 Difference]: Start difference. First operand 445 states and 653 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:13,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:13,341 INFO L93 Difference]: Finished difference Result 1679 states and 2496 transitions. [2022-11-02 21:04:13,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:04:13,342 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:04:13,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:13,349 INFO L225 Difference]: With dead ends: 1679 [2022-11-02 21:04:13,349 INFO L226 Difference]: Without dead ends: 1258 [2022-11-02 21:04:13,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 435 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 21:04:13,351 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 1770 mSDsluCounter, 1759 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1770 SdHoareTripleChecker+Valid, 2394 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:13,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1770 Valid, 2394 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:04:13,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2022-11-02 21:04:13,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 457. [2022-11-02 21:04:13,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 456 states have (on average 1.469298245614035) internal successors, (670), 456 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:13,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 670 transitions. [2022-11-02 21:04:13,376 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 670 transitions. Word has length 438 [2022-11-02 21:04:13,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:13,377 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 670 transitions. [2022-11-02 21:04:13,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:13,378 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 670 transitions. [2022-11-02 21:04:13,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:13,387 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:13,387 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:13,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:13,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:13,610 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:13,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:13,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1665386605, now seen corresponding path program 1 times [2022-11-02 21:04:13,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:13,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [728722365] [2022-11-02 21:04:13,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:13,614 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:13,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:13,615 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:13,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-02 21:04:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:14,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:04:14,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:14,840 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:14,840 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:14,840 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:14,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [728722365] [2022-11-02 21:04:14,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [728722365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:14,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:14,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:14,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972932812] [2022-11-02 21:04:14,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:14,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:14,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:14,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:14,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:14,844 INFO L87 Difference]: Start difference. First operand 457 states and 670 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:15,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:15,227 INFO L93 Difference]: Finished difference Result 1708 states and 2535 transitions. [2022-11-02 21:04:15,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:15,228 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:04:15,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:15,233 INFO L225 Difference]: With dead ends: 1708 [2022-11-02 21:04:15,233 INFO L226 Difference]: Without dead ends: 1287 [2022-11-02 21:04:15,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:04:15,236 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 2410 mSDsluCounter, 2957 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2410 SdHoareTripleChecker+Valid, 3595 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:15,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2410 Valid, 3595 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:04:15,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2022-11-02 21:04:15,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 463. [2022-11-02 21:04:15,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 462 states have (on average 1.4675324675324675) internal successors, (678), 462 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:15,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 678 transitions. [2022-11-02 21:04:15,252 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 678 transitions. Word has length 438 [2022-11-02 21:04:15,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:15,253 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 678 transitions. [2022-11-02 21:04:15,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:15,254 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 678 transitions. [2022-11-02 21:04:15,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:15,262 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:15,263 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:15,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:15,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:15,485 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:15,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:15,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1932794731, now seen corresponding path program 1 times [2022-11-02 21:04:15,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:15,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1392489971] [2022-11-02 21:04:15,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:15,488 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:15,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:15,489 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:15,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-02 21:04:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:16,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:04:16,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:16,835 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:16,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:16,836 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:16,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1392489971] [2022-11-02 21:04:16,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1392489971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:16,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:16,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:04:16,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183370428] [2022-11-02 21:04:16,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:16,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:04:16,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:16,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:04:16,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:04:16,839 INFO L87 Difference]: Start difference. First operand 463 states and 678 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:17,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:17,131 INFO L93 Difference]: Finished difference Result 1679 states and 2494 transitions. [2022-11-02 21:04:17,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:04:17,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:04:17,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:17,136 INFO L225 Difference]: With dead ends: 1679 [2022-11-02 21:04:17,136 INFO L226 Difference]: Without dead ends: 1258 [2022-11-02 21:04:17,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 435 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 21:04:17,138 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 1738 mSDsluCounter, 1733 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1738 SdHoareTripleChecker+Valid, 2380 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:17,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1738 Valid, 2380 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:04:17,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2022-11-02 21:04:17,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 469. [2022-11-02 21:04:17,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 468 states have (on average 1.4658119658119657) internal successors, (686), 468 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:17,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 686 transitions. [2022-11-02 21:04:17,153 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 686 transitions. Word has length 438 [2022-11-02 21:04:17,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:17,154 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 686 transitions. [2022-11-02 21:04:17,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:17,155 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 686 transitions. [2022-11-02 21:04:17,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:17,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:17,158 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:17,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:17,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:17,381 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:17,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:17,381 INFO L85 PathProgramCache]: Analyzing trace with hash -111543529, now seen corresponding path program 1 times [2022-11-02 21:04:17,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:17,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1269593688] [2022-11-02 21:04:17,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:17,383 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:17,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:17,384 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:17,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-02 21:04:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:18,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:04:18,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:18,748 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:18,749 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:18,749 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:18,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1269593688] [2022-11-02 21:04:18,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1269593688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:18,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:18,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:18,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652756817] [2022-11-02 21:04:18,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:18,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:18,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:18,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:18,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:18,753 INFO L87 Difference]: Start difference. First operand 469 states and 686 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:19,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:19,131 INFO L93 Difference]: Finished difference Result 1726 states and 2560 transitions. [2022-11-02 21:04:19,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:19,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:04:19,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:19,138 INFO L225 Difference]: With dead ends: 1726 [2022-11-02 21:04:19,138 INFO L226 Difference]: Without dead ends: 1305 [2022-11-02 21:04:19,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:04:19,140 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 2415 mSDsluCounter, 2959 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2415 SdHoareTripleChecker+Valid, 3607 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:19,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2415 Valid, 3607 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:04:19,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2022-11-02 21:04:19,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 471. [2022-11-02 21:04:19,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 470 states have (on average 1.4638297872340424) internal successors, (688), 470 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:19,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 688 transitions. [2022-11-02 21:04:19,160 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 688 transitions. Word has length 438 [2022-11-02 21:04:19,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:19,160 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 688 transitions. [2022-11-02 21:04:19,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:19,161 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 688 transitions. [2022-11-02 21:04:19,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:19,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:19,165 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:19,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:19,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:19,385 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:19,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:19,385 INFO L85 PathProgramCache]: Analyzing trace with hash 2083353, now seen corresponding path program 1 times [2022-11-02 21:04:19,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:19,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [674096568] [2022-11-02 21:04:19,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:19,387 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:19,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:19,388 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:19,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-02 21:04:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:20,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-02 21:04:20,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:20,947 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:20,947 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:20,947 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:20,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [674096568] [2022-11-02 21:04:20,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [674096568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:20,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:20,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:20,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179907258] [2022-11-02 21:04:20,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:20,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:20,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:20,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:20,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:20,951 INFO L87 Difference]: Start difference. First operand 471 states and 688 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:21,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:21,470 INFO L93 Difference]: Finished difference Result 1708 states and 2532 transitions. [2022-11-02 21:04:21,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:21,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:04:21,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:21,479 INFO L225 Difference]: With dead ends: 1708 [2022-11-02 21:04:21,479 INFO L226 Difference]: Without dead ends: 1287 [2022-11-02 21:04:21,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:04:21,483 INFO L413 NwaCegarLoop]: 641 mSDtfsCounter, 2379 mSDsluCounter, 2909 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2379 SdHoareTripleChecker+Valid, 3550 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:21,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2379 Valid, 3550 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 21:04:21,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2022-11-02 21:04:21,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 473. [2022-11-02 21:04:21,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 472 states have (on average 1.4618644067796611) internal successors, (690), 472 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:21,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 690 transitions. [2022-11-02 21:04:21,503 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 690 transitions. Word has length 438 [2022-11-02 21:04:21,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:21,504 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 690 transitions. [2022-11-02 21:04:21,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:21,505 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 690 transitions. [2022-11-02 21:04:21,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:21,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:21,508 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:21,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:21,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:21,734 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:21,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:21,734 INFO L85 PathProgramCache]: Analyzing trace with hash -458133093, now seen corresponding path program 1 times [2022-11-02 21:04:21,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:21,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [879269996] [2022-11-02 21:04:21,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:21,737 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:21,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:21,743 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:21,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-02 21:04:22,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:22,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:04:22,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:22,980 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:22,980 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:22,981 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:22,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [879269996] [2022-11-02 21:04:22,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [879269996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:22,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:22,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:22,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287747288] [2022-11-02 21:04:22,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:22,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:22,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:22,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:22,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:22,984 INFO L87 Difference]: Start difference. First operand 473 states and 690 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:23,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:23,341 INFO L93 Difference]: Finished difference Result 1316 states and 1947 transitions. [2022-11-02 21:04:23,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:23,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:04:23,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:23,345 INFO L225 Difference]: With dead ends: 1316 [2022-11-02 21:04:23,346 INFO L226 Difference]: Without dead ends: 895 [2022-11-02 21:04:23,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:04:23,347 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 1793 mSDsluCounter, 1812 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1793 SdHoareTripleChecker+Valid, 2458 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:23,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1793 Valid, 2458 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:04:23,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2022-11-02 21:04:23,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 475. [2022-11-02 21:04:23,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 474 states have (on average 1.459915611814346) internal successors, (692), 474 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:23,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 692 transitions. [2022-11-02 21:04:23,360 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 692 transitions. Word has length 438 [2022-11-02 21:04:23,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:23,361 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 692 transitions. [2022-11-02 21:04:23,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:23,361 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 692 transitions. [2022-11-02 21:04:23,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:23,364 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:23,365 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:23,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:23,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:23,592 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:23,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:23,592 INFO L85 PathProgramCache]: Analyzing trace with hash -935865959, now seen corresponding path program 1 times [2022-11-02 21:04:23,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:23,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [888085142] [2022-11-02 21:04:23,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:23,595 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:23,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:23,596 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:23,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-02 21:04:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:24,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:04:24,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:24,683 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:24,683 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:24,683 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:24,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [888085142] [2022-11-02 21:04:24,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [888085142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:24,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:24,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:04:24,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589707941] [2022-11-02 21:04:24,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:24,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:04:24,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:24,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:04:24,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:04:24,687 INFO L87 Difference]: Start difference. First operand 475 states and 692 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:24,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:24,884 INFO L93 Difference]: Finished difference Result 1679 states and 2490 transitions. [2022-11-02 21:04:24,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:04:24,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:04:24,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:24,888 INFO L225 Difference]: With dead ends: 1679 [2022-11-02 21:04:24,888 INFO L226 Difference]: Without dead ends: 1258 [2022-11-02 21:04:24,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 435 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 21:04:24,889 INFO L413 NwaCegarLoop]: 659 mSDtfsCounter, 1714 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1714 SdHoareTripleChecker+Valid, 2388 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:24,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1714 Valid, 2388 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:04:24,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2022-11-02 21:04:24,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 477. [2022-11-02 21:04:24,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 476 states have (on average 1.4579831932773109) internal successors, (694), 476 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:24,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 694 transitions. [2022-11-02 21:04:24,904 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 694 transitions. Word has length 438 [2022-11-02 21:04:24,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:24,904 INFO L495 AbstractCegarLoop]: Abstraction has 477 states and 694 transitions. [2022-11-02 21:04:24,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:24,905 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 694 transitions. [2022-11-02 21:04:24,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:24,908 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:24,908 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:24,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:25,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:25,125 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:25,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:25,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1891792357, now seen corresponding path program 1 times [2022-11-02 21:04:25,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:25,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341780522] [2022-11-02 21:04:25,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:25,128 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:25,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:25,132 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:25,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-02 21:04:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:26,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:04:26,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:26,320 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:26,320 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:26,320 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:26,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341780522] [2022-11-02 21:04:26,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341780522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:26,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:26,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:26,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944424344] [2022-11-02 21:04:26,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:26,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:26,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:26,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:26,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:26,323 INFO L87 Difference]: Start difference. First operand 477 states and 694 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:26,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:26,690 INFO L93 Difference]: Finished difference Result 1740 states and 2577 transitions. [2022-11-02 21:04:26,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:26,691 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:04:26,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:26,694 INFO L225 Difference]: With dead ends: 1740 [2022-11-02 21:04:26,694 INFO L226 Difference]: Without dead ends: 1319 [2022-11-02 21:04:26,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:04:26,696 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 2408 mSDsluCounter, 2924 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2408 SdHoareTripleChecker+Valid, 3576 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:26,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2408 Valid, 3576 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:04:26,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2022-11-02 21:04:26,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 481. [2022-11-02 21:04:26,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 480 states have (on average 1.45625) internal successors, (699), 480 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:26,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 699 transitions. [2022-11-02 21:04:26,708 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 699 transitions. Word has length 438 [2022-11-02 21:04:26,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:26,709 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 699 transitions. [2022-11-02 21:04:26,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:26,710 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 699 transitions. [2022-11-02 21:04:26,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:26,712 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:26,713 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:26,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:26,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:26,941 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:26,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:26,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1869075357, now seen corresponding path program 1 times [2022-11-02 21:04:26,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:26,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900107760] [2022-11-02 21:04:26,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:26,944 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:26,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:26,945 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:26,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-02 21:04:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:27,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:04:27,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:28,156 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:28,156 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:28,156 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:28,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900107760] [2022-11-02 21:04:28,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [900107760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:28,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:28,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:28,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897866496] [2022-11-02 21:04:28,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:28,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:28,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:28,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:28,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:28,161 INFO L87 Difference]: Start difference. First operand 481 states and 699 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:28,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:28,503 INFO L93 Difference]: Finished difference Result 1738 states and 2573 transitions. [2022-11-02 21:04:28,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:28,506 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:04:28,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:28,510 INFO L225 Difference]: With dead ends: 1738 [2022-11-02 21:04:28,510 INFO L226 Difference]: Without dead ends: 1317 [2022-11-02 21:04:28,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:04:28,512 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 2397 mSDsluCounter, 2912 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2397 SdHoareTripleChecker+Valid, 3564 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:28,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2397 Valid, 3564 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:04:28,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2022-11-02 21:04:28,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 483. [2022-11-02 21:04:28,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 482 states have (on average 1.454356846473029) internal successors, (701), 482 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:28,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 701 transitions. [2022-11-02 21:04:28,539 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 701 transitions. Word has length 438 [2022-11-02 21:04:28,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:28,539 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 701 transitions. [2022-11-02 21:04:28,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:28,540 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 701 transitions. [2022-11-02 21:04:28,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:28,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:28,543 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:28,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:28,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:28,765 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:28,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:28,765 INFO L85 PathProgramCache]: Analyzing trace with hash 2033882527, now seen corresponding path program 1 times [2022-11-02 21:04:28,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:28,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889461186] [2022-11-02 21:04:28,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:28,767 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:28,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:28,768 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:28,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-02 21:04:29,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:29,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:04:29,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:29,822 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:29,822 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:29,823 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:29,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889461186] [2022-11-02 21:04:29,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1889461186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:29,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:29,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:04:29,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264176223] [2022-11-02 21:04:29,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:29,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:04:29,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:29,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:04:29,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:04:29,825 INFO L87 Difference]: Start difference. First operand 483 states and 701 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:30,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:30,009 INFO L93 Difference]: Finished difference Result 1679 states and 2487 transitions. [2022-11-02 21:04:30,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:04:30,010 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:04:30,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:30,013 INFO L225 Difference]: With dead ends: 1679 [2022-11-02 21:04:30,013 INFO L226 Difference]: Without dead ends: 1258 [2022-11-02 21:04:30,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 435 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 21:04:30,015 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 1691 mSDsluCounter, 1717 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1691 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:30,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1691 Valid, 2385 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:04:30,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2022-11-02 21:04:30,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 485. [2022-11-02 21:04:30,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 484 states have (on average 1.4524793388429753) internal successors, (703), 484 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:30,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 703 transitions. [2022-11-02 21:04:30,029 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 703 transitions. Word has length 438 [2022-11-02 21:04:30,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:30,030 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 703 transitions. [2022-11-02 21:04:30,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:30,030 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 703 transitions. [2022-11-02 21:04:30,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:30,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:30,034 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:30,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:30,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:30,249 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:30,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:30,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1787170783, now seen corresponding path program 1 times [2022-11-02 21:04:30,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:30,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139314803] [2022-11-02 21:04:30,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:30,252 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:30,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:30,253 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:30,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-02 21:04:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:31,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:04:31,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:31,458 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:31,458 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:31,458 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:31,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1139314803] [2022-11-02 21:04:31,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1139314803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:31,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:31,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:31,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888303121] [2022-11-02 21:04:31,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:31,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:31,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:31,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:31,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:31,462 INFO L87 Difference]: Start difference. First operand 485 states and 703 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:31,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:31,855 INFO L93 Difference]: Finished difference Result 1748 states and 2586 transitions. [2022-11-02 21:04:31,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:31,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:04:31,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:31,861 INFO L225 Difference]: With dead ends: 1748 [2022-11-02 21:04:31,861 INFO L226 Difference]: Without dead ends: 1327 [2022-11-02 21:04:31,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:04:31,863 INFO L413 NwaCegarLoop]: 661 mSDtfsCounter, 2397 mSDsluCounter, 2909 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2397 SdHoareTripleChecker+Valid, 3570 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:31,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2397 Valid, 3570 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:04:31,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2022-11-02 21:04:31,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 489. [2022-11-02 21:04:31,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 488 states have (on average 1.4508196721311475) internal successors, (708), 488 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:31,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 708 transitions. [2022-11-02 21:04:31,879 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 708 transitions. Word has length 438 [2022-11-02 21:04:31,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:31,880 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 708 transitions. [2022-11-02 21:04:31,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:31,881 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 708 transitions. [2022-11-02 21:04:31,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:31,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:31,884 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:31,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (22)] Ended with exit code 0 [2022-11-02 21:04:32,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:32,109 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:32,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:32,110 INFO L85 PathProgramCache]: Analyzing trace with hash 486464419, now seen corresponding path program 1 times [2022-11-02 21:04:32,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:32,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062297673] [2022-11-02 21:04:32,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:32,112 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:32,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:32,114 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:32,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-02 21:04:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:33,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:04:33,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:33,329 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:33,329 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:33,329 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:33,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062297673] [2022-11-02 21:04:33,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2062297673] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:33,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:33,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:33,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070850296] [2022-11-02 21:04:33,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:33,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:33,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:33,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:33,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:33,335 INFO L87 Difference]: Start difference. First operand 489 states and 708 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:33,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:33,701 INFO L93 Difference]: Finished difference Result 1746 states and 2582 transitions. [2022-11-02 21:04:33,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:33,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:04:33,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:33,710 INFO L225 Difference]: With dead ends: 1746 [2022-11-02 21:04:33,710 INFO L226 Difference]: Without dead ends: 1325 [2022-11-02 21:04:33,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:04:33,712 INFO L413 NwaCegarLoop]: 661 mSDtfsCounter, 2386 mSDsluCounter, 2897 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2386 SdHoareTripleChecker+Valid, 3558 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:33,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2386 Valid, 3558 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:04:33,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2022-11-02 21:04:33,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 491. [2022-11-02 21:04:33,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 490 states have (on average 1.4489795918367347) internal successors, (710), 490 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:33,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 710 transitions. [2022-11-02 21:04:33,726 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 710 transitions. Word has length 438 [2022-11-02 21:04:33,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:33,727 INFO L495 AbstractCegarLoop]: Abstraction has 491 states and 710 transitions. [2022-11-02 21:04:33,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:33,727 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 710 transitions. [2022-11-02 21:04:33,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:33,730 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:33,730 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:33,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:33,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:33,944 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:33,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:33,945 INFO L85 PathProgramCache]: Analyzing trace with hash -932397147, now seen corresponding path program 1 times [2022-11-02 21:04:33,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:33,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1064326288] [2022-11-02 21:04:33,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:33,946 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:33,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:33,947 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:33,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-02 21:04:34,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:34,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:04:34,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:35,229 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:35,230 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:35,230 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:35,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1064326288] [2022-11-02 21:04:35,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1064326288] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:35,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:35,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:04:35,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994440330] [2022-11-02 21:04:35,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:35,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:04:35,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:35,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:04:35,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:04:35,234 INFO L87 Difference]: Start difference. First operand 491 states and 710 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:35,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:35,573 INFO L93 Difference]: Finished difference Result 1334 states and 1967 transitions. [2022-11-02 21:04:35,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:04:35,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:04:35,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:35,576 INFO L225 Difference]: With dead ends: 1334 [2022-11-02 21:04:35,576 INFO L226 Difference]: Without dead ends: 913 [2022-11-02 21:04:35,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 435 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 21:04:35,578 INFO L413 NwaCegarLoop]: 658 mSDtfsCounter, 1151 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 1840 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:35,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1151 Valid, 1840 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:04:35,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2022-11-02 21:04:35,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 493. [2022-11-02 21:04:35,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 492 states have (on average 1.4471544715447155) internal successors, (712), 492 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:35,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 712 transitions. [2022-11-02 21:04:35,602 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 712 transitions. Word has length 438 [2022-11-02 21:04:35,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:35,603 INFO L495 AbstractCegarLoop]: Abstraction has 493 states and 712 transitions. [2022-11-02 21:04:35,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:35,604 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 712 transitions. [2022-11-02 21:04:35,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:35,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:35,607 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:35,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:35,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:35,825 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:35,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:35,825 INFO L85 PathProgramCache]: Analyzing trace with hash 2050081571, now seen corresponding path program 1 times [2022-11-02 21:04:35,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:35,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2144702483] [2022-11-02 21:04:35,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:35,827 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:35,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:35,828 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:35,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-02 21:04:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:36,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:04:36,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:37,042 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:37,043 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:37,043 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:37,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2144702483] [2022-11-02 21:04:37,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2144702483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:37,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:37,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:37,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161518121] [2022-11-02 21:04:37,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:37,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:37,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:37,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:37,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:37,046 INFO L87 Difference]: Start difference. First operand 493 states and 712 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:37,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:37,395 INFO L93 Difference]: Finished difference Result 1754 states and 2592 transitions. [2022-11-02 21:04:37,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:37,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:04:37,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:37,400 INFO L225 Difference]: With dead ends: 1754 [2022-11-02 21:04:37,400 INFO L226 Difference]: Without dead ends: 1333 [2022-11-02 21:04:37,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:04:37,401 INFO L413 NwaCegarLoop]: 667 mSDtfsCounter, 2387 mSDsluCounter, 2898 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2387 SdHoareTripleChecker+Valid, 3565 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:37,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2387 Valid, 3565 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:04:37,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2022-11-02 21:04:37,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 495. [2022-11-02 21:04:37,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 494 states have (on average 1.4453441295546559) internal successors, (714), 494 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:37,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 714 transitions. [2022-11-02 21:04:37,415 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 714 transitions. Word has length 438 [2022-11-02 21:04:37,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:37,415 INFO L495 AbstractCegarLoop]: Abstraction has 495 states and 714 transitions. [2022-11-02 21:04:37,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:37,416 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 714 transitions. [2022-11-02 21:04:37,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:37,418 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:37,419 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:37,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:37,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:37,634 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:37,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:37,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1801062363, now seen corresponding path program 1 times [2022-11-02 21:04:37,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:37,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2070606901] [2022-11-02 21:04:37,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:37,636 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:37,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:37,637 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:37,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-02 21:04:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:38,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:04:38,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:38,831 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:38,832 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:38,832 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:38,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2070606901] [2022-11-02 21:04:38,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2070606901] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:38,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:38,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:38,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155331589] [2022-11-02 21:04:38,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:38,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:38,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:38,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:38,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:38,835 INFO L87 Difference]: Start difference. First operand 495 states and 714 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:39,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:39,133 INFO L93 Difference]: Finished difference Result 1738 states and 2567 transitions. [2022-11-02 21:04:39,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:39,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:04:39,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:39,135 INFO L225 Difference]: With dead ends: 1738 [2022-11-02 21:04:39,136 INFO L226 Difference]: Without dead ends: 1317 [2022-11-02 21:04:39,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:04:39,137 INFO L413 NwaCegarLoop]: 676 mSDtfsCounter, 2350 mSDsluCounter, 2897 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2350 SdHoareTripleChecker+Valid, 3573 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:39,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2350 Valid, 3573 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:04:39,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2022-11-02 21:04:39,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 497. [2022-11-02 21:04:39,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 496 states have (on average 1.4435483870967742) internal successors, (716), 496 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:39,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 716 transitions. [2022-11-02 21:04:39,149 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 716 transitions. Word has length 438 [2022-11-02 21:04:39,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:39,149 INFO L495 AbstractCegarLoop]: Abstraction has 497 states and 716 transitions. [2022-11-02 21:04:39,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:39,150 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 716 transitions. [2022-11-02 21:04:39,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:39,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:39,153 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:39,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:39,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:39,369 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:39,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:39,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1363641767, now seen corresponding path program 1 times [2022-11-02 21:04:39,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:39,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292430231] [2022-11-02 21:04:39,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:39,371 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:39,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:39,372 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:39,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-02 21:04:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:40,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:04:40,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:40,564 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:40,564 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:40,564 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:40,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292430231] [2022-11-02 21:04:40,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1292430231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:40,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:40,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:40,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794123512] [2022-11-02 21:04:40,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:40,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:40,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:40,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:40,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:40,568 INFO L87 Difference]: Start difference. First operand 497 states and 716 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:40,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:40,912 INFO L93 Difference]: Finished difference Result 1738 states and 2566 transitions. [2022-11-02 21:04:40,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:40,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:04:40,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:40,914 INFO L225 Difference]: With dead ends: 1738 [2022-11-02 21:04:40,915 INFO L226 Difference]: Without dead ends: 1317 [2022-11-02 21:04:40,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:04:40,916 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 2343 mSDsluCounter, 2891 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2343 SdHoareTripleChecker+Valid, 3569 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:40,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2343 Valid, 3569 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:04:40,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2022-11-02 21:04:40,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 499. [2022-11-02 21:04:40,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 498 states have (on average 1.4417670682730923) internal successors, (718), 498 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:40,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 718 transitions. [2022-11-02 21:04:40,927 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 718 transitions. Word has length 438 [2022-11-02 21:04:40,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:40,927 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 718 transitions. [2022-11-02 21:04:40,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:40,928 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 718 transitions. [2022-11-02 21:04:40,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:40,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:40,936 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:40,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:41,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:41,137 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:41,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:41,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1265464407, now seen corresponding path program 1 times [2022-11-02 21:04:41,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:41,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [782995964] [2022-11-02 21:04:41,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:41,140 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:41,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:41,141 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:41,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-02 21:04:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:42,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:04:42,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:42,376 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:42,376 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:42,376 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:42,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [782995964] [2022-11-02 21:04:42,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [782995964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:42,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:42,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:42,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037098659] [2022-11-02 21:04:42,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:42,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:42,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:42,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:42,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:42,379 INFO L87 Difference]: Start difference. First operand 499 states and 718 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:42,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:42,737 INFO L93 Difference]: Finished difference Result 1762 states and 2601 transitions. [2022-11-02 21:04:42,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:42,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:04:42,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:42,741 INFO L225 Difference]: With dead ends: 1762 [2022-11-02 21:04:42,741 INFO L226 Difference]: Without dead ends: 1341 [2022-11-02 21:04:42,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:04:42,743 INFO L413 NwaCegarLoop]: 676 mSDtfsCounter, 2377 mSDsluCounter, 2884 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2377 SdHoareTripleChecker+Valid, 3560 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:42,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2377 Valid, 3560 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:04:42,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2022-11-02 21:04:42,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 503. [2022-11-02 21:04:42,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 502 states have (on average 1.4402390438247012) internal successors, (723), 502 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:42,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 723 transitions. [2022-11-02 21:04:42,758 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 723 transitions. Word has length 438 [2022-11-02 21:04:42,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:42,759 INFO L495 AbstractCegarLoop]: Abstraction has 503 states and 723 transitions. [2022-11-02 21:04:42,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:42,759 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 723 transitions. [2022-11-02 21:04:42,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:42,762 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:42,762 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:42,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (28)] Ended with exit code 0 [2022-11-02 21:04:42,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:42,985 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:42,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:42,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1228610901, now seen corresponding path program 1 times [2022-11-02 21:04:42,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:42,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [288493058] [2022-11-02 21:04:42,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:42,987 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:42,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:42,988 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:42,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-02 21:04:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:43,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:04:43,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:44,254 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:44,255 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:44,255 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:44,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [288493058] [2022-11-02 21:04:44,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [288493058] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:44,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:44,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:04:44,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121734616] [2022-11-02 21:04:44,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:44,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:04:44,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:44,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:04:44,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:04:44,259 INFO L87 Difference]: Start difference. First operand 503 states and 723 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:44,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:44,554 INFO L93 Difference]: Finished difference Result 1679 states and 2479 transitions. [2022-11-02 21:04:44,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:04:44,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:04:44,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:44,557 INFO L225 Difference]: With dead ends: 1679 [2022-11-02 21:04:44,557 INFO L226 Difference]: Without dead ends: 1258 [2022-11-02 21:04:44,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 435 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 21:04:44,558 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 1633 mSDsluCounter, 1663 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1633 SdHoareTripleChecker+Valid, 2341 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:44,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1633 Valid, 2341 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:04:44,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2022-11-02 21:04:44,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 505. [2022-11-02 21:04:44,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 504 states have (on average 1.4384920634920635) internal successors, (725), 504 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:44,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 725 transitions. [2022-11-02 21:04:44,567 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 725 transitions. Word has length 438 [2022-11-02 21:04:44,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:44,568 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 725 transitions. [2022-11-02 21:04:44,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:44,568 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 725 transitions. [2022-11-02 21:04:44,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:44,570 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:44,571 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:44,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:44,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:44,788 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:44,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:44,788 INFO L85 PathProgramCache]: Analyzing trace with hash 407179821, now seen corresponding path program 1 times [2022-11-02 21:04:44,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:44,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877312141] [2022-11-02 21:04:44,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:44,790 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:44,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:44,791 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:44,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-02 21:04:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:45,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:04:45,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:46,009 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:46,010 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:46,010 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:46,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877312141] [2022-11-02 21:04:46,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1877312141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:46,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:46,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:46,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255471609] [2022-11-02 21:04:46,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:46,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:46,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:46,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:46,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:46,013 INFO L87 Difference]: Start difference. First operand 505 states and 725 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:46,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:46,340 INFO L93 Difference]: Finished difference Result 1762 states and 2599 transitions. [2022-11-02 21:04:46,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:46,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:04:46,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:46,343 INFO L225 Difference]: With dead ends: 1762 [2022-11-02 21:04:46,343 INFO L226 Difference]: Without dead ends: 1341 [2022-11-02 21:04:46,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:04:46,345 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 2358 mSDsluCounter, 2896 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2358 SdHoareTripleChecker+Valid, 3586 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:46,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2358 Valid, 3586 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:04:46,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2022-11-02 21:04:46,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 509. [2022-11-02 21:04:46,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 508 states have (on average 1.437007874015748) internal successors, (730), 508 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:46,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 730 transitions. [2022-11-02 21:04:46,360 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 730 transitions. Word has length 438 [2022-11-02 21:04:46,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:46,361 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 730 transitions. [2022-11-02 21:04:46,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:46,361 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 730 transitions. [2022-11-02 21:04:46,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:46,364 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:46,365 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:46,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:46,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:46,574 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:46,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:46,574 INFO L85 PathProgramCache]: Analyzing trace with hash -390245713, now seen corresponding path program 1 times [2022-11-02 21:04:46,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:46,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292115957] [2022-11-02 21:04:46,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:46,576 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:46,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:46,577 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:46,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-02 21:04:47,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:47,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-02 21:04:47,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:48,328 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:48,328 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:48,329 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:48,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292115957] [2022-11-02 21:04:48,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1292115957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:48,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:48,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:48,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060833364] [2022-11-02 21:04:48,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:48,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:48,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:48,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:48,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:48,331 INFO L87 Difference]: Start difference. First operand 509 states and 730 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:48,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:48,853 INFO L93 Difference]: Finished difference Result 1738 states and 2562 transitions. [2022-11-02 21:04:48,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:48,854 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:04:48,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:48,856 INFO L225 Difference]: With dead ends: 1738 [2022-11-02 21:04:48,856 INFO L226 Difference]: Without dead ends: 1317 [2022-11-02 21:04:48,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:04:48,859 INFO L413 NwaCegarLoop]: 683 mSDtfsCounter, 2305 mSDsluCounter, 2837 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2305 SdHoareTripleChecker+Valid, 3520 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:48,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2305 Valid, 3520 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 21:04:48,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2022-11-02 21:04:48,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 511. [2022-11-02 21:04:48,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 510 states have (on average 1.4352941176470588) internal successors, (732), 510 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:48,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 732 transitions. [2022-11-02 21:04:48,878 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 732 transitions. Word has length 438 [2022-11-02 21:04:48,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:48,878 INFO L495 AbstractCegarLoop]: Abstraction has 511 states and 732 transitions. [2022-11-02 21:04:48,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:48,879 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 732 transitions. [2022-11-02 21:04:48,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:48,882 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:48,882 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:48,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (31)] Ended with exit code 0 [2022-11-02 21:04:49,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:49,097 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:49,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:49,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1141912655, now seen corresponding path program 1 times [2022-11-02 21:04:49,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:49,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [128488190] [2022-11-02 21:04:49,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:49,100 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:49,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:49,101 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:49,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-02 21:04:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:50,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-02 21:04:50,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:50,641 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:50,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:50,641 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:50,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [128488190] [2022-11-02 21:04:50,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [128488190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:50,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:50,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:50,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559453545] [2022-11-02 21:04:50,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:50,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:50,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:50,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:50,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:50,644 INFO L87 Difference]: Start difference. First operand 511 states and 732 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:51,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:51,120 INFO L93 Difference]: Finished difference Result 1774 states and 2615 transitions. [2022-11-02 21:04:51,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:51,121 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:04:51,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:51,122 INFO L225 Difference]: With dead ends: 1774 [2022-11-02 21:04:51,122 INFO L226 Difference]: Without dead ends: 1353 [2022-11-02 21:04:51,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:04:51,123 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 2361 mSDsluCounter, 2837 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2361 SdHoareTripleChecker+Valid, 3510 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:51,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2361 Valid, 3510 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 21:04:51,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2022-11-02 21:04:51,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 515. [2022-11-02 21:04:51,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 514 states have (on average 1.433852140077821) internal successors, (737), 514 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:51,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 737 transitions. [2022-11-02 21:04:51,139 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 737 transitions. Word has length 438 [2022-11-02 21:04:51,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:51,139 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 737 transitions. [2022-11-02 21:04:51,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:51,140 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 737 transitions. [2022-11-02 21:04:51,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:51,143 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:51,143 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:51,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (32)] Ended with exit code 0 [2022-11-02 21:04:51,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:51,356 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:51,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:51,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1505433011, now seen corresponding path program 1 times [2022-11-02 21:04:51,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:51,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1290580737] [2022-11-02 21:04:51,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:51,359 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:51,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:51,359 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:51,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-02 21:04:52,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:52,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-02 21:04:52,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:52,594 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:52,595 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:52,595 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:52,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1290580737] [2022-11-02 21:04:52,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1290580737] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:52,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:52,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:04:52,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766831929] [2022-11-02 21:04:52,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:52,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:04:52,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:52,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:04:52,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:04:52,598 INFO L87 Difference]: Start difference. First operand 515 states and 737 transitions. Second operand has 9 states, 9 states have (on average 48.666666666666664) internal successors, (438), 9 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:53,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:53,886 INFO L93 Difference]: Finished difference Result 2718 states and 4016 transitions. [2022-11-02 21:04:53,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-02 21:04:53,887 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 48.666666666666664) internal successors, (438), 9 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:04:53,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:53,889 INFO L225 Difference]: With dead ends: 2718 [2022-11-02 21:04:53,889 INFO L226 Difference]: Without dead ends: 2297 [2022-11-02 21:04:53,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552 [2022-11-02 21:04:53,891 INFO L413 NwaCegarLoop]: 890 mSDtfsCounter, 5690 mSDsluCounter, 5977 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5690 SdHoareTripleChecker+Valid, 6867 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:53,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5690 Valid, 6867 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-02 21:04:53,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2297 states. [2022-11-02 21:04:53,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2297 to 607. [2022-11-02 21:04:53,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 606 states have (on average 1.4405940594059405) internal successors, (873), 606 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:53,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 873 transitions. [2022-11-02 21:04:53,911 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 873 transitions. Word has length 438 [2022-11-02 21:04:53,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:53,911 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 873 transitions. [2022-11-02 21:04:53,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 48.666666666666664) internal successors, (438), 9 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:53,912 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 873 transitions. [2022-11-02 21:04:53,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:53,915 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:53,915 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:53,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (33)] Ended with exit code 0 [2022-11-02 21:04:54,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:54,129 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:54,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:54,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1047853109, now seen corresponding path program 1 times [2022-11-02 21:04:54,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:54,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522134142] [2022-11-02 21:04:54,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:54,132 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:54,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:54,133 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:54,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-11-02 21:04:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:55,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:04:55,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:55,379 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:55,380 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:55,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:55,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522134142] [2022-11-02 21:04:55,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522134142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:55,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:55,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:55,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748113812] [2022-11-02 21:04:55,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:55,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:55,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:55,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:55,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:55,383 INFO L87 Difference]: Start difference. First operand 607 states and 873 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:55,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:55,760 INFO L93 Difference]: Finished difference Result 2065 states and 3042 transitions. [2022-11-02 21:04:55,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:55,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:04:55,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:55,764 INFO L225 Difference]: With dead ends: 2065 [2022-11-02 21:04:55,764 INFO L226 Difference]: Without dead ends: 1552 [2022-11-02 21:04:55,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:04:55,766 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 2279 mSDsluCounter, 2814 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2279 SdHoareTripleChecker+Valid, 3509 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:55,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2279 Valid, 3509 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:04:55,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2022-11-02 21:04:55,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 611. [2022-11-02 21:04:55,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 610 states have (on average 1.437704918032787) internal successors, (877), 610 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:55,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 877 transitions. [2022-11-02 21:04:55,784 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 877 transitions. Word has length 438 [2022-11-02 21:04:55,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:55,784 INFO L495 AbstractCegarLoop]: Abstraction has 611 states and 877 transitions. [2022-11-02 21:04:55,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:55,785 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 877 transitions. [2022-11-02 21:04:55,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:55,788 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:55,788 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:55,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:56,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:56,008 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:56,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:56,008 INFO L85 PathProgramCache]: Analyzing trace with hash 770282295, now seen corresponding path program 1 times [2022-11-02 21:04:56,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:56,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1504583612] [2022-11-02 21:04:56,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:56,010 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:56,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:56,011 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:56,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-11-02 21:04:57,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:57,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:04:57,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:57,308 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:57,309 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:57,309 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:57,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1504583612] [2022-11-02 21:04:57,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1504583612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:57,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:57,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:04:57,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268021993] [2022-11-02 21:04:57,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:57,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:04:57,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:57,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:04:57,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:04:57,312 INFO L87 Difference]: Start difference. First operand 611 states and 877 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:57,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:57,393 INFO L93 Difference]: Finished difference Result 1955 states and 2881 transitions. [2022-11-02 21:04:57,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:04:57,394 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:04:57,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:57,396 INFO L225 Difference]: With dead ends: 1955 [2022-11-02 21:04:57,396 INFO L226 Difference]: Without dead ends: 1442 [2022-11-02 21:04:57,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 435 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 21:04:57,398 INFO L413 NwaCegarLoop]: 732 mSDtfsCounter, 1582 mSDsluCounter, 1702 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1582 SdHoareTripleChecker+Valid, 2434 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:57,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1582 Valid, 2434 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:04:57,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442 states. [2022-11-02 21:04:57,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1442 to 615. [2022-11-02 21:04:57,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 614 states have (on average 1.4364820846905537) internal successors, (882), 614 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:57,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 882 transitions. [2022-11-02 21:04:57,412 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 882 transitions. Word has length 438 [2022-11-02 21:04:57,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:57,413 INFO L495 AbstractCegarLoop]: Abstraction has 615 states and 882 transitions. [2022-11-02 21:04:57,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:57,414 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 882 transitions. [2022-11-02 21:04:57,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:57,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:57,417 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:57,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (35)] Ended with exit code 0 [2022-11-02 21:04:57,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:57,624 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:57,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:57,625 INFO L85 PathProgramCache]: Analyzing trace with hash 307756857, now seen corresponding path program 1 times [2022-11-02 21:04:57,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:57,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [715693274] [2022-11-02 21:04:57,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:57,628 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:57,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:57,630 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:57,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-11-02 21:04:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:58,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:04:58,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:58,948 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:58,948 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:58,949 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:58,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [715693274] [2022-11-02 21:04:58,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [715693274] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:58,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:58,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:04:58,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492721358] [2022-11-02 21:04:58,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:58,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:04:58,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:58,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:04:58,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:04:58,952 INFO L87 Difference]: Start difference. First operand 615 states and 882 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:59,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:59,028 INFO L93 Difference]: Finished difference Result 1955 states and 2880 transitions. [2022-11-02 21:04:59,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:04:59,029 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:04:59,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:59,032 INFO L225 Difference]: With dead ends: 1955 [2022-11-02 21:04:59,032 INFO L226 Difference]: Without dead ends: 1442 [2022-11-02 21:04:59,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 435 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 21:04:59,034 INFO L413 NwaCegarLoop]: 737 mSDtfsCounter, 1571 mSDsluCounter, 1696 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 2433 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:59,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1571 Valid, 2433 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:04:59,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442 states. [2022-11-02 21:04:59,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1442 to 619. [2022-11-02 21:04:59,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 618 states have (on average 1.435275080906149) internal successors, (887), 618 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:59,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 887 transitions. [2022-11-02 21:04:59,054 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 887 transitions. Word has length 438 [2022-11-02 21:04:59,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:59,055 INFO L495 AbstractCegarLoop]: Abstraction has 619 states and 887 transitions. [2022-11-02 21:04:59,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:59,056 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 887 transitions. [2022-11-02 21:04:59,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:04:59,059 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:59,059 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:59,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (36)] Ended with exit code 0 [2022-11-02 21:04:59,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:59,285 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:59,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:59,285 INFO L85 PathProgramCache]: Analyzing trace with hash -883901381, now seen corresponding path program 1 times [2022-11-02 21:04:59,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:59,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1577366016] [2022-11-02 21:04:59,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:59,287 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:59,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:59,288 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:59,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-11-02 21:05:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:00,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:05:00,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:00,538 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:00,538 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:00,538 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:00,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1577366016] [2022-11-02 21:05:00,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1577366016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:00,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:00,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:05:00,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887549203] [2022-11-02 21:05:00,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:00,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:05:00,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:00,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:05:00,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:05:00,541 INFO L87 Difference]: Start difference. First operand 619 states and 887 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:00,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:00,619 INFO L93 Difference]: Finished difference Result 1955 states and 2879 transitions. [2022-11-02 21:05:00,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:05:00,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:00,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:00,623 INFO L225 Difference]: With dead ends: 1955 [2022-11-02 21:05:00,623 INFO L226 Difference]: Without dead ends: 1442 [2022-11-02 21:05:00,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 435 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 21:05:00,624 INFO L413 NwaCegarLoop]: 738 mSDtfsCounter, 1565 mSDsluCounter, 1691 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1565 SdHoareTripleChecker+Valid, 2429 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:00,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1565 Valid, 2429 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:05:00,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442 states. [2022-11-02 21:05:00,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1442 to 621. [2022-11-02 21:05:00,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 620 states have (on average 1.4338709677419355) internal successors, (889), 620 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:00,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 889 transitions. [2022-11-02 21:05:00,655 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 889 transitions. Word has length 438 [2022-11-02 21:05:00,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:00,656 INFO L495 AbstractCegarLoop]: Abstraction has 621 states and 889 transitions. [2022-11-02 21:05:00,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:00,656 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 889 transitions. [2022-11-02 21:05:00,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:00,659 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:00,659 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:00,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:00,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:00,881 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:00,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:00,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1913073219, now seen corresponding path program 1 times [2022-11-02 21:05:00,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:00,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025342718] [2022-11-02 21:05:00,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:00,883 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:00,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:00,884 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:00,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2022-11-02 21:05:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:01,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-02 21:05:01,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:02,169 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:02,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:02,169 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:02,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025342718] [2022-11-02 21:05:02,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025342718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:02,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:02,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-02 21:05:02,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862214697] [2022-11-02 21:05:02,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:02,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-02 21:05:02,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:02,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-02 21:05:02,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2022-11-02 21:05:02,172 INFO L87 Difference]: Start difference. First operand 621 states and 889 transitions. Second operand has 15 states, 15 states have (on average 29.2) internal successors, (438), 15 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:05,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:05,224 INFO L93 Difference]: Finished difference Result 3366 states and 4934 transitions. [2022-11-02 21:05:05,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-02 21:05:05,225 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 29.2) internal successors, (438), 15 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:05,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:05,229 INFO L225 Difference]: With dead ends: 3366 [2022-11-02 21:05:05,230 INFO L226 Difference]: Without dead ends: 2853 [2022-11-02 21:05:05,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=539, Invalid=1717, Unknown=0, NotChecked=0, Total=2256 [2022-11-02 21:05:05,232 INFO L413 NwaCegarLoop]: 1094 mSDtfsCounter, 11554 mSDsluCounter, 12084 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11554 SdHoareTripleChecker+Valid, 13178 SdHoareTripleChecker+Invalid, 1568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:05,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11554 Valid, 13178 Invalid, 1568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1513 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-02 21:05:05,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2853 states. [2022-11-02 21:05:05,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2853 to 811. [2022-11-02 21:05:05,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 811 states, 810 states have (on average 1.4111111111111112) internal successors, (1143), 810 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:05,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1143 transitions. [2022-11-02 21:05:05,270 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1143 transitions. Word has length 438 [2022-11-02 21:05:05,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:05,270 INFO L495 AbstractCegarLoop]: Abstraction has 811 states and 1143 transitions. [2022-11-02 21:05:05,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 29.2) internal successors, (438), 15 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:05,272 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1143 transitions. [2022-11-02 21:05:05,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:05,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:05,275 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:05,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:05,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:05,493 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:05,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:05,493 INFO L85 PathProgramCache]: Analyzing trace with hash -545381957, now seen corresponding path program 1 times [2022-11-02 21:05:05,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:05,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1969119761] [2022-11-02 21:05:05,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:05,496 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:05,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:05,505 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:05,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2022-11-02 21:05:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:06,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:05:06,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:06,684 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:06,685 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:06,685 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:06,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1969119761] [2022-11-02 21:05:06,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1969119761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:06,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:06,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:05:06,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939383680] [2022-11-02 21:05:06,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:06,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:05:06,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:06,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:05:06,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:05:06,687 INFO L87 Difference]: Start difference. First operand 811 states and 1143 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:06,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:06,863 INFO L93 Difference]: Finished difference Result 2355 states and 3442 transitions. [2022-11-02 21:05:06,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:05:06,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:06,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:06,866 INFO L225 Difference]: With dead ends: 2355 [2022-11-02 21:05:06,866 INFO L226 Difference]: Without dead ends: 1742 [2022-11-02 21:05:06,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 435 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 21:05:06,868 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 1534 mSDsluCounter, 1633 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 2368 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:06,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1534 Valid, 2368 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:05:06,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2022-11-02 21:05:06,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 833. [2022-11-02 21:05:06,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 832 states have (on average 1.4110576923076923) internal successors, (1174), 832 states have internal predecessors, (1174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:06,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1174 transitions. [2022-11-02 21:05:06,887 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1174 transitions. Word has length 438 [2022-11-02 21:05:06,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:06,888 INFO L495 AbstractCegarLoop]: Abstraction has 833 states and 1174 transitions. [2022-11-02 21:05:06,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:06,889 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1174 transitions. [2022-11-02 21:05:06,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:06,891 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:06,892 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:06,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:07,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:07,105 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:07,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:07,105 INFO L85 PathProgramCache]: Analyzing trace with hash -444011971, now seen corresponding path program 1 times [2022-11-02 21:05:07,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:07,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1990932599] [2022-11-02 21:05:07,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:07,107 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:07,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:07,108 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:07,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2022-11-02 21:05:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:08,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:05:08,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:08,425 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:08,426 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:08,426 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:08,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1990932599] [2022-11-02 21:05:08,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1990932599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:08,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:08,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:05:08,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30061080] [2022-11-02 21:05:08,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:08,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:05:08,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:08,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:05:08,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:05:08,430 INFO L87 Difference]: Start difference. First operand 833 states and 1174 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:08,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:08,721 INFO L93 Difference]: Finished difference Result 2651 states and 3878 transitions. [2022-11-02 21:05:08,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:05:08,722 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:08,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:08,724 INFO L225 Difference]: With dead ends: 2651 [2022-11-02 21:05:08,725 INFO L226 Difference]: Without dead ends: 2038 [2022-11-02 21:05:08,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:05:08,726 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 2305 mSDsluCounter, 2830 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2305 SdHoareTripleChecker+Valid, 3565 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:08,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2305 Valid, 3565 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:05:08,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2038 states. [2022-11-02 21:05:08,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2038 to 837. [2022-11-02 21:05:08,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 837 states, 836 states have (on average 1.4102870813397128) internal successors, (1179), 836 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:08,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1179 transitions. [2022-11-02 21:05:08,745 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1179 transitions. Word has length 438 [2022-11-02 21:05:08,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:08,746 INFO L495 AbstractCegarLoop]: Abstraction has 837 states and 1179 transitions. [2022-11-02 21:05:08,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:08,746 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1179 transitions. [2022-11-02 21:05:08,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:08,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:08,749 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:08,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:08,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:08,973 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:08,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:08,974 INFO L85 PathProgramCache]: Analyzing trace with hash -239057985, now seen corresponding path program 1 times [2022-11-02 21:05:08,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:08,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [577712218] [2022-11-02 21:05:08,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:08,976 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:08,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:08,977 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:08,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2022-11-02 21:05:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:09,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:05:09,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:10,276 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:10,276 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:10,276 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:10,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [577712218] [2022-11-02 21:05:10,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [577712218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:10,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:10,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:05:10,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137097019] [2022-11-02 21:05:10,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:10,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:05:10,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:10,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:05:10,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:05:10,279 INFO L87 Difference]: Start difference. First operand 837 states and 1179 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:10,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:10,615 INFO L93 Difference]: Finished difference Result 2651 states and 3877 transitions. [2022-11-02 21:05:10,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:05:10,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:10,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:10,618 INFO L225 Difference]: With dead ends: 2651 [2022-11-02 21:05:10,618 INFO L226 Difference]: Without dead ends: 2038 [2022-11-02 21:05:10,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:05:10,620 INFO L413 NwaCegarLoop]: 737 mSDtfsCounter, 2298 mSDsluCounter, 2824 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2298 SdHoareTripleChecker+Valid, 3561 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:10,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2298 Valid, 3561 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:05:10,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2038 states. [2022-11-02 21:05:10,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2038 to 839. [2022-11-02 21:05:10,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 838 states have (on average 1.409307875894988) internal successors, (1181), 838 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:10,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1181 transitions. [2022-11-02 21:05:10,639 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1181 transitions. Word has length 438 [2022-11-02 21:05:10,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:10,640 INFO L495 AbstractCegarLoop]: Abstraction has 839 states and 1181 transitions. [2022-11-02 21:05:10,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:10,640 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1181 transitions. [2022-11-02 21:05:10,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:10,643 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:10,643 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:10,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (41)] Ended with exit code 0 [2022-11-02 21:05:10,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:10,869 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:10,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:10,869 INFO L85 PathProgramCache]: Analyzing trace with hash -408676927, now seen corresponding path program 1 times [2022-11-02 21:05:10,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:10,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649129681] [2022-11-02 21:05:10,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:10,872 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:10,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:10,873 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:10,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2022-11-02 21:05:11,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:11,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:05:11,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:12,248 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:12,248 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:12,249 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:12,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649129681] [2022-11-02 21:05:12,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649129681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:12,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:12,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:05:12,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549141674] [2022-11-02 21:05:12,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:12,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:05:12,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:12,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:05:12,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:05:12,252 INFO L87 Difference]: Start difference. First operand 839 states and 1181 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:12,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:12,510 INFO L93 Difference]: Finished difference Result 2355 states and 3439 transitions. [2022-11-02 21:05:12,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:05:12,511 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:12,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:12,513 INFO L225 Difference]: With dead ends: 2355 [2022-11-02 21:05:12,513 INFO L226 Difference]: Without dead ends: 1742 [2022-11-02 21:05:12,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 435 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 21:05:12,515 INFO L413 NwaCegarLoop]: 746 mSDtfsCounter, 1501 mSDsluCounter, 1607 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 2353 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:12,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 2353 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:05:12,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2022-11-02 21:05:12,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 845. [2022-11-02 21:05:12,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 844 states have (on average 1.4087677725118484) internal successors, (1189), 844 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:12,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1189 transitions. [2022-11-02 21:05:12,534 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1189 transitions. Word has length 438 [2022-11-02 21:05:12,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:12,535 INFO L495 AbstractCegarLoop]: Abstraction has 845 states and 1189 transitions. [2022-11-02 21:05:12,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:12,535 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1189 transitions. [2022-11-02 21:05:12,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:12,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:12,538 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:12,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:12,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:12,753 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:12,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:12,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1052372669, now seen corresponding path program 1 times [2022-11-02 21:05:12,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:12,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1912634671] [2022-11-02 21:05:12,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:12,756 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:12,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:12,757 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:12,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2022-11-02 21:05:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:13,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:05:13,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:14,151 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:14,151 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:14,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:14,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1912634671] [2022-11-02 21:05:14,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1912634671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:14,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:14,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:05:14,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047948023] [2022-11-02 21:05:14,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:14,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:05:14,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:14,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:05:14,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:05:14,154 INFO L87 Difference]: Start difference. First operand 845 states and 1189 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:14,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:14,449 INFO L93 Difference]: Finished difference Result 2678 states and 3915 transitions. [2022-11-02 21:05:14,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:05:14,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:14,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:14,451 INFO L225 Difference]: With dead ends: 2678 [2022-11-02 21:05:14,451 INFO L226 Difference]: Without dead ends: 2065 [2022-11-02 21:05:14,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:05:14,453 INFO L413 NwaCegarLoop]: 747 mSDtfsCounter, 2304 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2304 SdHoareTripleChecker+Valid, 3573 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:14,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2304 Valid, 3573 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:05:14,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2065 states. [2022-11-02 21:05:14,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2065 to 847. [2022-11-02 21:05:14,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 846 states have (on average 1.4078014184397163) internal successors, (1191), 846 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:14,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1191 transitions. [2022-11-02 21:05:14,470 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1191 transitions. Word has length 438 [2022-11-02 21:05:14,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:14,470 INFO L495 AbstractCegarLoop]: Abstraction has 847 states and 1191 transitions. [2022-11-02 21:05:14,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:14,471 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1191 transitions. [2022-11-02 21:05:14,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:14,473 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:14,474 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:14,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:14,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:14,689 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:14,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:14,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1026226875, now seen corresponding path program 1 times [2022-11-02 21:05:14,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:14,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1172534607] [2022-11-02 21:05:14,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:14,691 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:14,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:14,693 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:14,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2022-11-02 21:05:15,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:15,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:05:15,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:15,780 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:15,780 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:15,781 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:15,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1172534607] [2022-11-02 21:05:15,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1172534607] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:15,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:15,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:05:15,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683593358] [2022-11-02 21:05:15,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:15,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:05:15,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:15,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:05:15,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:05:15,783 INFO L87 Difference]: Start difference. First operand 847 states and 1191 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:15,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:15,970 INFO L93 Difference]: Finished difference Result 2355 states and 3437 transitions. [2022-11-02 21:05:15,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:05:15,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:15,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:15,973 INFO L225 Difference]: With dead ends: 2355 [2022-11-02 21:05:15,973 INFO L226 Difference]: Without dead ends: 1742 [2022-11-02 21:05:15,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 435 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 21:05:15,974 INFO L413 NwaCegarLoop]: 760 mSDtfsCounter, 1479 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 2363 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:15,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1479 Valid, 2363 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:05:15,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2022-11-02 21:05:15,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 853. [2022-11-02 21:05:15,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 853 states, 852 states have (on average 1.4072769953051643) internal successors, (1199), 852 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:15,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1199 transitions. [2022-11-02 21:05:15,987 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1199 transitions. Word has length 438 [2022-11-02 21:05:15,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:15,988 INFO L495 AbstractCegarLoop]: Abstraction has 853 states and 1199 transitions. [2022-11-02 21:05:15,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:15,988 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1199 transitions. [2022-11-02 21:05:15,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:15,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:15,991 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:16,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:16,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:16,192 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:16,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:16,192 INFO L85 PathProgramCache]: Analyzing trace with hash 128164551, now seen corresponding path program 1 times [2022-11-02 21:05:16,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:16,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920344240] [2022-11-02 21:05:16,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:16,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:16,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:16,195 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:16,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2022-11-02 21:05:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:17,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:05:17,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:17,771 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:17,771 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:17,771 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:17,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920344240] [2022-11-02 21:05:17,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920344240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:17,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:17,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:05:17,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838326865] [2022-11-02 21:05:17,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:17,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:05:17,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:17,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:05:17,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:05:17,774 INFO L87 Difference]: Start difference. First operand 853 states and 1199 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:18,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:18,136 INFO L93 Difference]: Finished difference Result 2692 states and 3934 transitions. [2022-11-02 21:05:18,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:05:18,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:18,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:18,139 INFO L225 Difference]: With dead ends: 2692 [2022-11-02 21:05:18,139 INFO L226 Difference]: Without dead ends: 2079 [2022-11-02 21:05:18,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:05:18,140 INFO L413 NwaCegarLoop]: 753 mSDtfsCounter, 2299 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2299 SdHoareTripleChecker+Valid, 3540 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:18,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2299 Valid, 3540 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:05:18,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2079 states. [2022-11-02 21:05:18,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2079 to 857. [2022-11-02 21:05:18,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 856 states have (on average 1.4065420560747663) internal successors, (1204), 856 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:18,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1204 transitions. [2022-11-02 21:05:18,162 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1204 transitions. Word has length 438 [2022-11-02 21:05:18,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:18,163 INFO L495 AbstractCegarLoop]: Abstraction has 857 states and 1204 transitions. [2022-11-02 21:05:18,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:18,163 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1204 transitions. [2022-11-02 21:05:18,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:18,166 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:18,166 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:18,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (45)] Ended with exit code 0 [2022-11-02 21:05:18,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:18,367 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:18,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:18,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1882107575, now seen corresponding path program 1 times [2022-11-02 21:05:18,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:18,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185384297] [2022-11-02 21:05:18,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:18,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:18,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:18,371 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:18,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2022-11-02 21:05:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:19,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:05:19,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:19,762 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:19,762 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:19,762 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:19,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185384297] [2022-11-02 21:05:19,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185384297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:19,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:19,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:05:19,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071672514] [2022-11-02 21:05:19,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:19,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:05:19,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:19,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:05:19,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:05:19,764 INFO L87 Difference]: Start difference. First operand 857 states and 1204 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:20,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:20,156 INFO L93 Difference]: Finished difference Result 2690 states and 3930 transitions. [2022-11-02 21:05:20,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:05:20,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:20,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:20,159 INFO L225 Difference]: With dead ends: 2690 [2022-11-02 21:05:20,159 INFO L226 Difference]: Without dead ends: 2077 [2022-11-02 21:05:20,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:05:20,161 INFO L413 NwaCegarLoop]: 753 mSDtfsCounter, 2288 mSDsluCounter, 2775 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2288 SdHoareTripleChecker+Valid, 3528 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:20,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2288 Valid, 3528 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:05:20,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2077 states. [2022-11-02 21:05:20,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2077 to 859. [2022-11-02 21:05:20,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 858 states have (on average 1.4055944055944056) internal successors, (1206), 858 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:20,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1206 transitions. [2022-11-02 21:05:20,181 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1206 transitions. Word has length 438 [2022-11-02 21:05:20,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:20,182 INFO L495 AbstractCegarLoop]: Abstraction has 859 states and 1206 transitions. [2022-11-02 21:05:20,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:20,182 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1206 transitions. [2022-11-02 21:05:20,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:20,185 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:20,185 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:20,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:20,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:20,401 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:20,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:20,402 INFO L85 PathProgramCache]: Analyzing trace with hash -985876405, now seen corresponding path program 1 times [2022-11-02 21:05:20,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:20,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1264397490] [2022-11-02 21:05:20,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:20,416 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:20,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:20,417 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:20,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2022-11-02 21:05:21,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:21,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:05:21,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:21,587 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:21,587 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:21,587 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:21,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1264397490] [2022-11-02 21:05:21,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1264397490] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:21,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:21,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:05:21,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870303961] [2022-11-02 21:05:21,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:21,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:05:21,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:21,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:05:21,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:05:21,589 INFO L87 Difference]: Start difference. First operand 859 states and 1206 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:21,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:21,774 INFO L93 Difference]: Finished difference Result 2355 states and 3434 transitions. [2022-11-02 21:05:21,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:05:21,774 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:21,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:21,776 INFO L225 Difference]: With dead ends: 2355 [2022-11-02 21:05:21,776 INFO L226 Difference]: Without dead ends: 1742 [2022-11-02 21:05:21,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 435 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 21:05:21,777 INFO L413 NwaCegarLoop]: 769 mSDtfsCounter, 1456 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:21,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1456 Valid, 2360 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:05:21,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2022-11-02 21:05:21,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 861. [2022-11-02 21:05:21,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 860 states have (on average 1.4046511627906977) internal successors, (1208), 860 states have internal predecessors, (1208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:21,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1208 transitions. [2022-11-02 21:05:21,791 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1208 transitions. Word has length 438 [2022-11-02 21:05:21,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:21,791 INFO L495 AbstractCegarLoop]: Abstraction has 861 states and 1208 transitions. [2022-11-02 21:05:21,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:21,792 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1208 transitions. [2022-11-02 21:05:21,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:21,793 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:21,794 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:21,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:21,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:21,994 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:21,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:21,995 INFO L85 PathProgramCache]: Analyzing trace with hash -184944691, now seen corresponding path program 1 times [2022-11-02 21:05:21,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:21,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2128883910] [2022-11-02 21:05:21,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:21,997 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:21,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:21,998 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:22,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2022-11-02 21:05:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:22,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:05:22,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:23,445 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:23,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:23,446 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:23,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2128883910] [2022-11-02 21:05:23,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2128883910] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:23,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:23,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:05:23,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428352587] [2022-11-02 21:05:23,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:23,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:05:23,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:23,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:05:23,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:05:23,448 INFO L87 Difference]: Start difference. First operand 861 states and 1208 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:23,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:23,789 INFO L93 Difference]: Finished difference Result 2088 states and 3033 transitions. [2022-11-02 21:05:23,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:05:23,790 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:23,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:23,791 INFO L225 Difference]: With dead ends: 2088 [2022-11-02 21:05:23,791 INFO L226 Difference]: Without dead ends: 1475 [2022-11-02 21:05:23,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 435 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 21:05:23,792 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 1050 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 1923 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:23,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1050 Valid, 1923 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:05:23,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1475 states. [2022-11-02 21:05:23,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1475 to 863. [2022-11-02 21:05:23,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 862 states have (on average 1.4037122969837588) internal successors, (1210), 862 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:23,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1210 transitions. [2022-11-02 21:05:23,811 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1210 transitions. Word has length 438 [2022-11-02 21:05:23,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:23,811 INFO L495 AbstractCegarLoop]: Abstraction has 863 states and 1210 transitions. [2022-11-02 21:05:23,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:23,811 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1210 transitions. [2022-11-02 21:05:23,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:23,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:23,814 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:23,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (48)] Ended with exit code 0 [2022-11-02 21:05:24,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:24,037 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:24,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:24,037 INFO L85 PathProgramCache]: Analyzing trace with hash 122601419, now seen corresponding path program 1 times [2022-11-02 21:05:24,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:24,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [534795162] [2022-11-02 21:05:24,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:24,039 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:24,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:24,040 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:24,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2022-11-02 21:05:24,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:25,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:05:25,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:25,478 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:25,478 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:25,478 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:25,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [534795162] [2022-11-02 21:05:25,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [534795162] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:25,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:25,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:05:25,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099723] [2022-11-02 21:05:25,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:25,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:05:25,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:25,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:05:25,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:05:25,481 INFO L87 Difference]: Start difference. First operand 863 states and 1210 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:25,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:25,824 INFO L93 Difference]: Finished difference Result 2700 states and 3942 transitions. [2022-11-02 21:05:25,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:05:25,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:25,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:25,826 INFO L225 Difference]: With dead ends: 2700 [2022-11-02 21:05:25,826 INFO L226 Difference]: Without dead ends: 2087 [2022-11-02 21:05:25,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:05:25,827 INFO L413 NwaCegarLoop]: 761 mSDtfsCounter, 2286 mSDsluCounter, 2772 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2286 SdHoareTripleChecker+Valid, 3533 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:25,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2286 Valid, 3533 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:05:25,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2087 states. [2022-11-02 21:05:25,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2087 to 865. [2022-11-02 21:05:25,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 864 states have (on average 1.4027777777777777) internal successors, (1212), 864 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:25,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1212 transitions. [2022-11-02 21:05:25,845 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1212 transitions. Word has length 438 [2022-11-02 21:05:25,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:25,845 INFO L495 AbstractCegarLoop]: Abstraction has 865 states and 1212 transitions. [2022-11-02 21:05:25,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:25,845 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1212 transitions. [2022-11-02 21:05:25,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:25,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:25,847 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:25,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (49)] Ended with exit code 0 [2022-11-02 21:05:26,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:26,048 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:26,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:26,049 INFO L85 PathProgramCache]: Analyzing trace with hash -284422067, now seen corresponding path program 1 times [2022-11-02 21:05:26,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:26,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2135834819] [2022-11-02 21:05:26,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:26,050 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:26,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:26,051 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:26,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2022-11-02 21:05:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:27,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:05:27,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:27,697 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:27,697 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:27,698 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:27,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2135834819] [2022-11-02 21:05:27,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2135834819] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:27,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:27,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:05:27,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101768595] [2022-11-02 21:05:27,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:27,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:05:27,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:27,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:05:27,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:05:27,700 INFO L87 Difference]: Start difference. First operand 865 states and 1212 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:28,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:28,153 INFO L93 Difference]: Finished difference Result 2698 states and 3938 transitions. [2022-11-02 21:05:28,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:05:28,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:28,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:28,155 INFO L225 Difference]: With dead ends: 2698 [2022-11-02 21:05:28,155 INFO L226 Difference]: Without dead ends: 2085 [2022-11-02 21:05:28,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:05:28,157 INFO L413 NwaCegarLoop]: 761 mSDtfsCounter, 2275 mSDsluCounter, 2760 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2275 SdHoareTripleChecker+Valid, 3521 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:28,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2275 Valid, 3521 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 21:05:28,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2022-11-02 21:05:28,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 867. [2022-11-02 21:05:28,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 866 states have (on average 1.4018475750577368) internal successors, (1214), 866 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:28,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1214 transitions. [2022-11-02 21:05:28,180 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1214 transitions. Word has length 438 [2022-11-02 21:05:28,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:28,180 INFO L495 AbstractCegarLoop]: Abstraction has 867 states and 1214 transitions. [2022-11-02 21:05:28,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:28,181 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1214 transitions. [2022-11-02 21:05:28,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:28,184 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:28,184 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:28,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:28,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:28,409 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:28,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:28,410 INFO L85 PathProgramCache]: Analyzing trace with hash 126327119, now seen corresponding path program 1 times [2022-11-02 21:05:28,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:28,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [796659332] [2022-11-02 21:05:28,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:28,412 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:28,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:28,417 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:28,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2022-11-02 21:05:29,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:29,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:05:29,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:30,044 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:30,044 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:30,044 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:30,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [796659332] [2022-11-02 21:05:30,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [796659332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:30,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:30,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:05:30,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183421969] [2022-11-02 21:05:30,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:30,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:05:30,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:30,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:05:30,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:05:30,047 INFO L87 Difference]: Start difference. First operand 867 states and 1214 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:30,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:30,426 INFO L93 Difference]: Finished difference Result 2706 states and 3949 transitions. [2022-11-02 21:05:30,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:05:30,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:30,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:30,429 INFO L225 Difference]: With dead ends: 2706 [2022-11-02 21:05:30,429 INFO L226 Difference]: Without dead ends: 2093 [2022-11-02 21:05:30,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:05:30,431 INFO L413 NwaCegarLoop]: 768 mSDtfsCounter, 2279 mSDsluCounter, 2761 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2279 SdHoareTripleChecker+Valid, 3529 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:30,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2279 Valid, 3529 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:05:30,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2093 states. [2022-11-02 21:05:30,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2093 to 871. [2022-11-02 21:05:30,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 870 states have (on average 1.4011494252873564) internal successors, (1219), 870 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:30,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1219 transitions. [2022-11-02 21:05:30,454 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1219 transitions. Word has length 438 [2022-11-02 21:05:30,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:30,454 INFO L495 AbstractCegarLoop]: Abstraction has 871 states and 1219 transitions. [2022-11-02 21:05:30,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:30,455 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1219 transitions. [2022-11-02 21:05:30,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:30,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:30,458 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:30,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:30,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:30,681 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:30,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:30,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1717308591, now seen corresponding path program 1 times [2022-11-02 21:05:30,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:30,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [46768879] [2022-11-02 21:05:30,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:30,684 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:30,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:30,685 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:30,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2022-11-02 21:05:31,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:31,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:05:31,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:32,154 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:32,154 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:32,154 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:32,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [46768879] [2022-11-02 21:05:32,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [46768879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:32,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:32,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:05:32,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200688858] [2022-11-02 21:05:32,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:32,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:05:32,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:32,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:05:32,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:05:32,157 INFO L87 Difference]: Start difference. First operand 871 states and 1219 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:32,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:32,468 INFO L93 Difference]: Finished difference Result 2690 states and 3924 transitions. [2022-11-02 21:05:32,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:05:32,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:32,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:32,472 INFO L225 Difference]: With dead ends: 2690 [2022-11-02 21:05:32,472 INFO L226 Difference]: Without dead ends: 2077 [2022-11-02 21:05:32,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:05:32,473 INFO L413 NwaCegarLoop]: 777 mSDtfsCounter, 2241 mSDsluCounter, 2764 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2241 SdHoareTripleChecker+Valid, 3541 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:32,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2241 Valid, 3541 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:05:32,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2077 states. [2022-11-02 21:05:32,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2077 to 873. [2022-11-02 21:05:32,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 872 states have (on average 1.400229357798165) internal successors, (1221), 872 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:32,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1221 transitions. [2022-11-02 21:05:32,493 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1221 transitions. Word has length 438 [2022-11-02 21:05:32,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:32,494 INFO L495 AbstractCegarLoop]: Abstraction has 873 states and 1221 transitions. [2022-11-02 21:05:32,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:32,494 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1221 transitions. [2022-11-02 21:05:32,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:32,497 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:32,497 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:32,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (52)] Ended with exit code 0 [2022-11-02 21:05:32,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:32,713 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:32,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:32,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1941104083, now seen corresponding path program 1 times [2022-11-02 21:05:32,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:32,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [8511151] [2022-11-02 21:05:32,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:32,716 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:32,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:32,717 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:32,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2022-11-02 21:05:33,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:33,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:05:33,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:34,208 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:34,209 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:34,209 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:34,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [8511151] [2022-11-02 21:05:34,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [8511151] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:34,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:34,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:05:34,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355711697] [2022-11-02 21:05:34,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:34,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:05:34,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:34,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:05:34,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:05:34,211 INFO L87 Difference]: Start difference. First operand 873 states and 1221 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:34,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:34,569 INFO L93 Difference]: Finished difference Result 2690 states and 3923 transitions. [2022-11-02 21:05:34,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:05:34,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:34,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:34,572 INFO L225 Difference]: With dead ends: 2690 [2022-11-02 21:05:34,573 INFO L226 Difference]: Without dead ends: 2077 [2022-11-02 21:05:34,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:05:34,575 INFO L413 NwaCegarLoop]: 779 mSDtfsCounter, 2234 mSDsluCounter, 2758 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2234 SdHoareTripleChecker+Valid, 3537 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:34,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2234 Valid, 3537 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:05:34,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2077 states. [2022-11-02 21:05:34,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2077 to 875. [2022-11-02 21:05:34,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 874 states have (on average 1.3993135011441649) internal successors, (1223), 874 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:34,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1223 transitions. [2022-11-02 21:05:34,591 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1223 transitions. Word has length 438 [2022-11-02 21:05:34,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:34,592 INFO L495 AbstractCegarLoop]: Abstraction has 875 states and 1223 transitions. [2022-11-02 21:05:34,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:34,592 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1223 transitions. [2022-11-02 21:05:34,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:34,594 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:34,594 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:34,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (53)] Ended with exit code 0 [2022-11-02 21:05:34,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:34,795 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:34,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:34,795 INFO L85 PathProgramCache]: Analyzing trace with hash -897543979, now seen corresponding path program 1 times [2022-11-02 21:05:34,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:34,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562528073] [2022-11-02 21:05:34,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:34,797 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:34,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:34,798 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:34,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2022-11-02 21:05:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:35,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:05:35,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:36,424 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:36,424 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:36,424 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:36,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562528073] [2022-11-02 21:05:36,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562528073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:36,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:36,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:05:36,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800133565] [2022-11-02 21:05:36,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:36,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:05:36,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:36,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:05:36,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:05:36,427 INFO L87 Difference]: Start difference. First operand 875 states and 1223 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:36,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:36,771 INFO L93 Difference]: Finished difference Result 2714 states and 3958 transitions. [2022-11-02 21:05:36,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:05:36,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:36,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:36,773 INFO L225 Difference]: With dead ends: 2714 [2022-11-02 21:05:36,773 INFO L226 Difference]: Without dead ends: 2101 [2022-11-02 21:05:36,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:05:36,774 INFO L413 NwaCegarLoop]: 777 mSDtfsCounter, 2268 mSDsluCounter, 2747 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2268 SdHoareTripleChecker+Valid, 3524 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:36,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2268 Valid, 3524 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:05:36,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2101 states. [2022-11-02 21:05:36,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2101 to 879. [2022-11-02 21:05:36,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 878 states have (on average 1.398633257403189) internal successors, (1228), 878 states have internal predecessors, (1228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:36,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1228 transitions. [2022-11-02 21:05:36,795 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1228 transitions. Word has length 438 [2022-11-02 21:05:36,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:36,796 INFO L495 AbstractCegarLoop]: Abstraction has 879 states and 1228 transitions. [2022-11-02 21:05:36,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:36,796 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1228 transitions. [2022-11-02 21:05:36,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:36,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:36,800 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:36,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (54)] Ended with exit code 0 [2022-11-02 21:05:37,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:37,017 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:37,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:37,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1297091799, now seen corresponding path program 1 times [2022-11-02 21:05:37,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:37,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [379462905] [2022-11-02 21:05:37,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:37,020 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:37,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:37,021 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:37,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2022-11-02 21:05:37,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:38,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:05:38,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:38,571 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:38,571 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:38,572 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:38,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [379462905] [2022-11-02 21:05:38,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [379462905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:38,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:38,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:05:38,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57687400] [2022-11-02 21:05:38,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:38,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:05:38,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:38,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:05:38,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:05:38,573 INFO L87 Difference]: Start difference. First operand 879 states and 1228 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:38,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:38,896 INFO L93 Difference]: Finished difference Result 2718 states and 3963 transitions. [2022-11-02 21:05:38,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:05:38,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:38,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:38,899 INFO L225 Difference]: With dead ends: 2718 [2022-11-02 21:05:38,900 INFO L226 Difference]: Without dead ends: 2105 [2022-11-02 21:05:38,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:05:38,902 INFO L413 NwaCegarLoop]: 789 mSDtfsCounter, 2263 mSDsluCounter, 2774 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2263 SdHoareTripleChecker+Valid, 3563 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:38,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2263 Valid, 3563 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:05:38,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2105 states. [2022-11-02 21:05:38,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2105 to 883. [2022-11-02 21:05:38,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 882 states have (on average 1.3979591836734695) internal successors, (1233), 882 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:38,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1233 transitions. [2022-11-02 21:05:38,942 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1233 transitions. Word has length 438 [2022-11-02 21:05:38,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:38,943 INFO L495 AbstractCegarLoop]: Abstraction has 883 states and 1233 transitions. [2022-11-02 21:05:38,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:38,943 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1233 transitions. [2022-11-02 21:05:38,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:38,946 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:38,947 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:38,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (55)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:39,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:39,169 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:39,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:39,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1615734311, now seen corresponding path program 1 times [2022-11-02 21:05:39,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:39,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284402901] [2022-11-02 21:05:39,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:39,172 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:39,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:39,174 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:39,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2022-11-02 21:05:40,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:40,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:05:40,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:40,933 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:40,933 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:40,933 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:40,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284402901] [2022-11-02 21:05:40,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1284402901] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:40,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:40,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:05:40,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044474655] [2022-11-02 21:05:40,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:40,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:05:40,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:40,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:05:40,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:05:40,936 INFO L87 Difference]: Start difference. First operand 883 states and 1233 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:41,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:41,314 INFO L93 Difference]: Finished difference Result 2714 states and 3956 transitions. [2022-11-02 21:05:41,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:05:41,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:41,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:41,317 INFO L225 Difference]: With dead ends: 2714 [2022-11-02 21:05:41,317 INFO L226 Difference]: Without dead ends: 2101 [2022-11-02 21:05:41,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:05:41,319 INFO L413 NwaCegarLoop]: 791 mSDtfsCounter, 2249 mSDsluCounter, 2763 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2249 SdHoareTripleChecker+Valid, 3554 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:41,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2249 Valid, 3554 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:05:41,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2101 states. [2022-11-02 21:05:41,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2101 to 885. [2022-11-02 21:05:41,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 884 states have (on average 1.3970588235294117) internal successors, (1235), 884 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:41,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1235 transitions. [2022-11-02 21:05:41,338 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1235 transitions. Word has length 438 [2022-11-02 21:05:41,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:41,338 INFO L495 AbstractCegarLoop]: Abstraction has 885 states and 1235 transitions. [2022-11-02 21:05:41,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:41,338 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1235 transitions. [2022-11-02 21:05:41,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:41,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:41,343 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:41,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (56)] Ended with exit code 0 [2022-11-02 21:05:41,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:41,543 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:41,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:41,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1657208667, now seen corresponding path program 1 times [2022-11-02 21:05:41,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:41,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2003746338] [2022-11-02 21:05:41,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:41,546 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:41,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:41,548 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:41,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2022-11-02 21:05:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:42,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-02 21:05:42,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:44,674 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:44,675 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:44,675 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:44,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2003746338] [2022-11-02 21:05:44,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2003746338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:44,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:44,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:05:44,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614150681] [2022-11-02 21:05:44,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:44,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:05:44,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:44,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:05:44,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:05:44,677 INFO L87 Difference]: Start difference. First operand 885 states and 1235 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:45,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:45,136 INFO L93 Difference]: Finished difference Result 2690 states and 3919 transitions. [2022-11-02 21:05:45,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:05:45,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:45,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:45,138 INFO L225 Difference]: With dead ends: 2690 [2022-11-02 21:05:45,138 INFO L226 Difference]: Without dead ends: 2077 [2022-11-02 21:05:45,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:05:45,139 INFO L413 NwaCegarLoop]: 784 mSDtfsCounter, 2196 mSDsluCounter, 2702 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 3486 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:45,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2196 Valid, 3486 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 21:05:45,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2077 states. [2022-11-02 21:05:45,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2077 to 887. [2022-11-02 21:05:45,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 886 states have (on average 1.3961625282167043) internal successors, (1237), 886 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:45,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1237 transitions. [2022-11-02 21:05:45,155 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1237 transitions. Word has length 438 [2022-11-02 21:05:45,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:45,156 INFO L495 AbstractCegarLoop]: Abstraction has 887 states and 1237 transitions. [2022-11-02 21:05:45,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:45,156 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1237 transitions. [2022-11-02 21:05:45,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:45,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:45,159 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:45,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (57)] Ended with exit code 0 [2022-11-02 21:05:45,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:45,360 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:45,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:45,361 INFO L85 PathProgramCache]: Analyzing trace with hash -2071224995, now seen corresponding path program 1 times [2022-11-02 21:05:45,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:45,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [837398264] [2022-11-02 21:05:45,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:45,363 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:45,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:45,364 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:45,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2022-11-02 21:05:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:46,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-02 21:05:46,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:47,313 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:47,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:47,313 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:47,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [837398264] [2022-11-02 21:05:47,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [837398264] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:47,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:47,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:05:47,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3876793] [2022-11-02 21:05:47,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:47,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:05:47,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:47,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:05:47,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:05:47,315 INFO L87 Difference]: Start difference. First operand 887 states and 1237 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:47,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:47,793 INFO L93 Difference]: Finished difference Result 2726 states and 3972 transitions. [2022-11-02 21:05:47,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:05:47,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:47,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:47,795 INFO L225 Difference]: With dead ends: 2726 [2022-11-02 21:05:47,795 INFO L226 Difference]: Without dead ends: 2113 [2022-11-02 21:05:47,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:05:47,796 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 2252 mSDsluCounter, 2699 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2252 SdHoareTripleChecker+Valid, 3473 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:47,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2252 Valid, 3473 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 21:05:47,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2113 states. [2022-11-02 21:05:47,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2113 to 891. [2022-11-02 21:05:47,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 890 states have (on average 1.395505617977528) internal successors, (1242), 890 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:47,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1242 transitions. [2022-11-02 21:05:47,813 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1242 transitions. Word has length 438 [2022-11-02 21:05:47,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:47,813 INFO L495 AbstractCegarLoop]: Abstraction has 891 states and 1242 transitions. [2022-11-02 21:05:47,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:47,814 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1242 transitions. [2022-11-02 21:05:47,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:47,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:47,816 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:47,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (58)] Ended with exit code 0 [2022-11-02 21:05:48,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:48,016 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:48,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:48,017 INFO L85 PathProgramCache]: Analyzing trace with hash -238842785, now seen corresponding path program 1 times [2022-11-02 21:05:48,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:48,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2052628620] [2022-11-02 21:05:48,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:48,019 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:48,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:48,020 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:48,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2022-11-02 21:05:48,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:48,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-02 21:05:48,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:49,350 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:49,350 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:49,350 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:49,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2052628620] [2022-11-02 21:05:49,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2052628620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:49,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:49,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:05:49,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924247108] [2022-11-02 21:05:49,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:49,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:05:49,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:49,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:05:49,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:05:49,353 INFO L87 Difference]: Start difference. First operand 891 states and 1242 transitions. Second operand has 9 states, 9 states have (on average 48.666666666666664) internal successors, (438), 9 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:50,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:50,878 INFO L93 Difference]: Finished difference Result 3813 states and 5564 transitions. [2022-11-02 21:05:50,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-02 21:05:50,880 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 48.666666666666664) internal successors, (438), 9 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:50,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:50,883 INFO L225 Difference]: With dead ends: 3813 [2022-11-02 21:05:50,883 INFO L226 Difference]: Without dead ends: 3200 [2022-11-02 21:05:50,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552 [2022-11-02 21:05:50,885 INFO L413 NwaCegarLoop]: 970 mSDtfsCounter, 5834 mSDsluCounter, 5850 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5834 SdHoareTripleChecker+Valid, 6820 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:50,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5834 Valid, 6820 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 21:05:50,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3200 states. [2022-11-02 21:05:50,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3200 to 1113. [2022-11-02 21:05:50,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113 states, 1112 states have (on average 1.3974820143884892) internal successors, (1554), 1112 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:50,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1554 transitions. [2022-11-02 21:05:50,912 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1554 transitions. Word has length 438 [2022-11-02 21:05:50,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:50,912 INFO L495 AbstractCegarLoop]: Abstraction has 1113 states and 1554 transitions. [2022-11-02 21:05:50,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 48.666666666666664) internal successors, (438), 9 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:50,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1554 transitions. [2022-11-02 21:05:50,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:50,916 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:50,917 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:50,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:51,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:51,141 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:51,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:51,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1926190049, now seen corresponding path program 1 times [2022-11-02 21:05:51,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:51,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [515651956] [2022-11-02 21:05:51,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:51,144 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:51,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:51,145 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:51,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2022-11-02 21:05:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:52,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:05:52,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:52,430 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:52,430 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:52,430 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:52,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [515651956] [2022-11-02 21:05:52,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [515651956] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:52,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:52,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:05:52,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825749753] [2022-11-02 21:05:52,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:52,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:05:52,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:52,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:05:52,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:05:52,433 INFO L87 Difference]: Start difference. First operand 1113 states and 1554 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:52,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:52,523 INFO L93 Difference]: Finished difference Result 2903 states and 4220 transitions. [2022-11-02 21:05:52,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:05:52,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:52,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:52,528 INFO L225 Difference]: With dead ends: 2903 [2022-11-02 21:05:52,528 INFO L226 Difference]: Without dead ends: 2128 [2022-11-02 21:05:52,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 435 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 21:05:52,530 INFO L413 NwaCegarLoop]: 835 mSDtfsCounter, 1349 mSDsluCounter, 1576 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 2411 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:52,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1349 Valid, 2411 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:05:52,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2128 states. [2022-11-02 21:05:52,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2128 to 1123. [2022-11-02 21:05:52,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1123 states, 1122 states have (on average 1.396613190730838) internal successors, (1567), 1122 states have internal predecessors, (1567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:52,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1567 transitions. [2022-11-02 21:05:52,587 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1567 transitions. Word has length 438 [2022-11-02 21:05:52,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:52,587 INFO L495 AbstractCegarLoop]: Abstraction has 1123 states and 1567 transitions. [2022-11-02 21:05:52,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:52,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1567 transitions. [2022-11-02 21:05:52,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:52,591 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:52,591 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:52,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (60)] Ended with exit code 0 [2022-11-02 21:05:52,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:52,817 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:52,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:52,818 INFO L85 PathProgramCache]: Analyzing trace with hash 2082432227, now seen corresponding path program 1 times [2022-11-02 21:05:52,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:52,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [467540144] [2022-11-02 21:05:52,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:52,820 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:52,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:52,821 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:52,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2022-11-02 21:05:53,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:53,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:05:53,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:54,150 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:54,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:54,150 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:54,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [467540144] [2022-11-02 21:05:54,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [467540144] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:54,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:54,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:05:54,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764275605] [2022-11-02 21:05:54,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:54,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:05:54,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:54,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:05:54,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:05:54,153 INFO L87 Difference]: Start difference. First operand 1123 states and 1567 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:54,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:54,248 INFO L93 Difference]: Finished difference Result 2903 states and 4219 transitions. [2022-11-02 21:05:54,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:05:54,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:54,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:54,253 INFO L225 Difference]: With dead ends: 2903 [2022-11-02 21:05:54,253 INFO L226 Difference]: Without dead ends: 2128 [2022-11-02 21:05:54,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 435 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 21:05:54,255 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 1343 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1343 SdHoareTripleChecker+Valid, 2407 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:54,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1343 Valid, 2407 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:05:54,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2128 states. [2022-11-02 21:05:54,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2128 to 1125. [2022-11-02 21:05:54,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 1124 states have (on average 1.3959074733096086) internal successors, (1569), 1124 states have internal predecessors, (1569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:54,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1569 transitions. [2022-11-02 21:05:54,283 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1569 transitions. Word has length 438 [2022-11-02 21:05:54,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:54,283 INFO L495 AbstractCegarLoop]: Abstraction has 1125 states and 1569 transitions. [2022-11-02 21:05:54,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:54,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1569 transitions. [2022-11-02 21:05:54,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:54,286 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:54,287 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:54,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (61)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:54,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:54,501 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:54,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:54,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1528574363, now seen corresponding path program 1 times [2022-11-02 21:05:54,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:54,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1059129224] [2022-11-02 21:05:54,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:54,504 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:54,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:54,505 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:54,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2022-11-02 21:05:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:55,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:05:55,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:55,706 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:55,706 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:55,706 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:55,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1059129224] [2022-11-02 21:05:55,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1059129224] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:55,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:55,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:05:55,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552688281] [2022-11-02 21:05:55,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:55,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:05:55,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:55,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:05:55,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:05:55,709 INFO L87 Difference]: Start difference. First operand 1125 states and 1569 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:55,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:55,783 INFO L93 Difference]: Finished difference Result 2903 states and 4218 transitions. [2022-11-02 21:05:55,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:05:55,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:55,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:55,786 INFO L225 Difference]: With dead ends: 2903 [2022-11-02 21:05:55,786 INFO L226 Difference]: Without dead ends: 2128 [2022-11-02 21:05:55,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 435 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 21:05:55,788 INFO L413 NwaCegarLoop]: 839 mSDtfsCounter, 1337 mSDsluCounter, 1570 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 2409 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:55,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 2409 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:05:55,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2128 states. [2022-11-02 21:05:55,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2128 to 1127. [2022-11-02 21:05:55,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1127 states, 1126 states have (on average 1.3952042628774424) internal successors, (1571), 1126 states have internal predecessors, (1571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:55,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 1571 transitions. [2022-11-02 21:05:55,813 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 1571 transitions. Word has length 438 [2022-11-02 21:05:55,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:55,814 INFO L495 AbstractCegarLoop]: Abstraction has 1127 states and 1571 transitions. [2022-11-02 21:05:55,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:55,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 1571 transitions. [2022-11-02 21:05:55,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:55,817 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:55,817 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:55,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (62)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:56,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:56,033 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:56,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:56,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1755795353, now seen corresponding path program 1 times [2022-11-02 21:05:56,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:56,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [597745936] [2022-11-02 21:05:56,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:56,036 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:56,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:56,037 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:56,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2022-11-02 21:05:57,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:57,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:05:57,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:57,330 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:57,330 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:57,330 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:57,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [597745936] [2022-11-02 21:05:57,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [597745936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:57,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:57,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:05:57,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587349768] [2022-11-02 21:05:57,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:57,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:05:57,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:57,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:05:57,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:05:57,333 INFO L87 Difference]: Start difference. First operand 1127 states and 1571 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:57,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:57,407 INFO L93 Difference]: Finished difference Result 2903 states and 4217 transitions. [2022-11-02 21:05:57,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:05:57,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:57,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:57,411 INFO L225 Difference]: With dead ends: 2903 [2022-11-02 21:05:57,411 INFO L226 Difference]: Without dead ends: 2128 [2022-11-02 21:05:57,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 435 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 21:05:57,413 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 1331 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 2405 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:57,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1331 Valid, 2405 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:05:57,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2128 states. [2022-11-02 21:05:57,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2128 to 1129. [2022-11-02 21:05:57,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1129 states, 1128 states have (on average 1.3945035460992907) internal successors, (1573), 1128 states have internal predecessors, (1573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:57,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1573 transitions. [2022-11-02 21:05:57,439 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1573 transitions. Word has length 438 [2022-11-02 21:05:57,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:57,440 INFO L495 AbstractCegarLoop]: Abstraction has 1129 states and 1573 transitions. [2022-11-02 21:05:57,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:57,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1573 transitions. [2022-11-02 21:05:57,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:57,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:57,443 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:57,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (63)] Ended with exit code 0 [2022-11-02 21:05:57,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:57,656 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:57,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:57,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1639830807, now seen corresponding path program 1 times [2022-11-02 21:05:57,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:57,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [783186664] [2022-11-02 21:05:57,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:57,660 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:57,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:57,661 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:57,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2022-11-02 21:05:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:58,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:05:58,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:58,874 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:58,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:58,874 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:58,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [783186664] [2022-11-02 21:05:58,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [783186664] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:58,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:58,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:05:58,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206959749] [2022-11-02 21:05:58,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:58,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:05:58,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:58,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:05:58,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:05:58,877 INFO L87 Difference]: Start difference. First operand 1129 states and 1573 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:58,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:58,928 INFO L93 Difference]: Finished difference Result 2903 states and 4216 transitions. [2022-11-02 21:05:58,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:05:58,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:05:58,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:58,931 INFO L225 Difference]: With dead ends: 2903 [2022-11-02 21:05:58,931 INFO L226 Difference]: Without dead ends: 2128 [2022-11-02 21:05:58,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 435 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 21:05:58,932 INFO L413 NwaCegarLoop]: 847 mSDtfsCounter, 1325 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 2419 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:58,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1325 Valid, 2419 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:05:58,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2128 states. [2022-11-02 21:05:58,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2128 to 1131. [2022-11-02 21:05:58,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1131 states, 1130 states have (on average 1.3938053097345133) internal successors, (1575), 1130 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:58,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 1575 transitions. [2022-11-02 21:05:58,952 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 1575 transitions. Word has length 438 [2022-11-02 21:05:58,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:58,952 INFO L495 AbstractCegarLoop]: Abstraction has 1131 states and 1575 transitions. [2022-11-02 21:05:58,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:58,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 1575 transitions. [2022-11-02 21:05:58,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:05:58,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:58,955 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:58,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (64)] Ended with exit code 0 [2022-11-02 21:05:59,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:59,156 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:59,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:59,157 INFO L85 PathProgramCache]: Analyzing trace with hash 653024747, now seen corresponding path program 1 times [2022-11-02 21:05:59,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:59,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1090951246] [2022-11-02 21:05:59,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:59,159 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:59,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:59,161 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:59,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2022-11-02 21:06:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:00,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-02 21:06:00,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:06:01,106 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:06:01,106 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:06:01,106 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:06:01,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1090951246] [2022-11-02 21:06:01,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1090951246] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:01,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:01,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:06:01,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093258131] [2022-11-02 21:06:01,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:01,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:06:01,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:06:01,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:06:01,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:06:01,109 INFO L87 Difference]: Start difference. First operand 1131 states and 1575 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:06:01,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:01,514 INFO L93 Difference]: Finished difference Result 3456 states and 5036 transitions. [2022-11-02 21:06:01,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:06:01,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:06:01,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:01,518 INFO L225 Difference]: With dead ends: 3456 [2022-11-02 21:06:01,518 INFO L226 Difference]: Without dead ends: 2681 [2022-11-02 21:06:01,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:06:01,520 INFO L413 NwaCegarLoop]: 810 mSDtfsCounter, 2226 mSDsluCounter, 2694 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2226 SdHoareTripleChecker+Valid, 3504 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:01,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2226 Valid, 3504 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:06:01,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2681 states. [2022-11-02 21:06:01,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2681 to 1135. [2022-11-02 21:06:01,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1135 states, 1134 states have (on average 1.3932980599647267) internal successors, (1580), 1134 states have internal predecessors, (1580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:06:01,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1135 states to 1135 states and 1580 transitions. [2022-11-02 21:06:01,540 INFO L78 Accepts]: Start accepts. Automaton has 1135 states and 1580 transitions. Word has length 438 [2022-11-02 21:06:01,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:01,541 INFO L495 AbstractCegarLoop]: Abstraction has 1135 states and 1580 transitions. [2022-11-02 21:06:01,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:06:01,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states and 1580 transitions. [2022-11-02 21:06:01,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:06:01,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:01,544 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:06:01,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (65)] Ended with exit code 0 [2022-11-02 21:06:01,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:06:01,744 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:06:01,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:01,745 INFO L85 PathProgramCache]: Analyzing trace with hash 253518317, now seen corresponding path program 1 times [2022-11-02 21:06:01,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:06:01,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681065624] [2022-11-02 21:06:01,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:01,747 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:06:01,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:06:01,748 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:06:01,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (66)] Waiting until timeout for monitored process [2022-11-02 21:06:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:02,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:06:02,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:06:03,386 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:06:03,386 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:06:03,387 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:06:03,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [681065624] [2022-11-02 21:06:03,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [681065624] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:03,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:03,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:06:03,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311818878] [2022-11-02 21:06:03,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:03,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:06:03,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:06:03,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:06:03,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:06:03,389 INFO L87 Difference]: Start difference. First operand 1135 states and 1580 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:06:03,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:03,782 INFO L93 Difference]: Finished difference Result 2686 states and 3889 transitions. [2022-11-02 21:06:03,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:06:03,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2022-11-02 21:06:03,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:03,785 INFO L225 Difference]: With dead ends: 2686 [2022-11-02 21:06:03,785 INFO L226 Difference]: Without dead ends: 1911 [2022-11-02 21:06:03,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 434 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 21:06:03,787 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 1604 mSDsluCounter, 1753 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 2564 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:03,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1604 Valid, 2564 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:06:03,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1911 states. [2022-11-02 21:06:03,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1911 to 1137. [2022-11-02 21:06:03,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1137 states, 1136 states have (on average 1.392605633802817) internal successors, (1582), 1136 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:06:03,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1582 transitions. [2022-11-02 21:06:03,811 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1582 transitions. Word has length 438 [2022-11-02 21:06:03,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:03,811 INFO L495 AbstractCegarLoop]: Abstraction has 1137 states and 1582 transitions. [2022-11-02 21:06:03,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:06:03,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1582 transitions. [2022-11-02 21:06:03,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-02 21:06:03,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:03,815 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:06:03,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (66)] Forceful destruction successful, exit code 0 [2022-11-02 21:06:04,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:06:04,042 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:06:04,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:04,042 INFO L85 PathProgramCache]: Analyzing trace with hash -99138197, now seen corresponding path program 1 times [2022-11-02 21:06:04,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:06:04,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [646345072] [2022-11-02 21:06:04,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:04,045 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:06:04,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:06:04,046 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:06:04,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847c46a6-3b1e-48d1-aec0-908acf19a9c2/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2022-11-02 21:06:04,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:05,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-02 21:06:05,026 INFO L286 TraceCheckSpWp]: Computing forward predicates...