./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.8.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/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_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.8.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/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_aef13323-8241-439c-a633-c822496ad316/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 c74d906337e06c8dd2c0528b072883bb6b5dcc493fa945e0ee9e0dd423781a39 --- 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 20:34:39,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:34:39,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:34:39,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:34:39,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:34:39,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:34:39,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:34:39,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:34:39,656 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:34:39,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:34:39,662 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:34:39,665 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:34:39,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:34:39,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:34:39,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:34:39,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:34:39,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:34:39,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:34:39,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:34:39,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:34:39,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:34:39,689 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:34:39,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:34:39,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:34:39,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:34:39,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:34:39,704 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:34:39,705 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:34:39,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:34:39,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:34:39,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:34:39,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:34:39,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:34:39,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:34:39,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:34:39,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:34:39,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:34:39,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:34:39,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:34:39,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:34:39,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:34:39,718 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:34:39,764 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:34:39,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:34:39,765 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:34:39,766 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:34:39,766 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:34:39,767 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:34:39,767 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:34:39,767 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:34:39,768 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:34:39,768 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:34:39,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:34:39,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:34:39,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:34:39,769 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:34:39,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:34:39,770 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:34:39,770 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:34:39,770 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:34:39,770 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:34:39,771 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:34:39,771 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:34:39,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:34:39,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:34:39,771 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:34:39,772 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:34:39,772 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:34:39,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:34:39,773 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:34:39,774 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:34:39,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:34:39,774 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_aef13323-8241-439c-a633-c822496ad316/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c74d906337e06c8dd2c0528b072883bb6b5dcc493fa945e0ee9e0dd423781a39 [2022-11-02 20:34:40,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:34:40,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:34:40,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:34:40,135 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:34:40,136 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:34:40,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.8.prop1-func-interl.c [2022-11-02 20:34:40,210 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/data/cf1e0a721/1fa0e1f4177d4dc7974fa202d079ce05/FLAGde5210830 [2022-11-02 20:34:40,936 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:34:40,937 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.8.prop1-func-interl.c [2022-11-02 20:34:40,964 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/data/cf1e0a721/1fa0e1f4177d4dc7974fa202d079ce05/FLAGde5210830 [2022-11-02 20:34:41,056 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/data/cf1e0a721/1fa0e1f4177d4dc7974fa202d079ce05 [2022-11-02 20:34:41,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:34:41,063 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:34:41,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:34:41,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:34:41,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:34:41,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:34:41" (1/1) ... [2022-11-02 20:34:41,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67012a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:41, skipping insertion in model container [2022-11-02 20:34:41,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:34:41" (1/1) ... [2022-11-02 20:34:41,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:34:41,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:34:41,436 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_aef13323-8241-439c-a633-c822496ad316/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.8.prop1-func-interl.c[1014,1027] [2022-11-02 20:34:41,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:34:41,866 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:34:41,878 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_aef13323-8241-439c-a633-c822496ad316/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.8.prop1-func-interl.c[1014,1027] [2022-11-02 20:34:42,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:34:42,129 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:34:42,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:42 WrapperNode [2022-11-02 20:34:42,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:34:42,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:34:42,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:34:42,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:34:42,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:42" (1/1) ... [2022-11-02 20:34:42,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:42" (1/1) ... [2022-11-02 20:34:42,600 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3137 [2022-11-02 20:34:42,601 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:34:42,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:34:42,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:34:42,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:34:42,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:42" (1/1) ... [2022-11-02 20:34:42,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:42" (1/1) ... [2022-11-02 20:34:42,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:42" (1/1) ... [2022-11-02 20:34:42,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:42" (1/1) ... [2022-11-02 20:34:42,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:42" (1/1) ... [2022-11-02 20:34:42,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:42" (1/1) ... [2022-11-02 20:34:42,903 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:42" (1/1) ... [2022-11-02 20:34:42,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:42" (1/1) ... [2022-11-02 20:34:42,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:34:42,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:34:42,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:34:42,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:34:42,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:42" (1/1) ... [2022-11-02 20:34:42,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:34:42,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:34:43,007 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:34:43,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:34:43,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:34:43,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:34:43,720 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:34:43,722 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:36:21,066 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:36:21,076 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:36:21,077 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:36:21,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:36:21 BoogieIcfgContainer [2022-11-02 20:36:21,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:36:21,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:36:21,082 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:36:21,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:36:21,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:34:41" (1/3) ... [2022-11-02 20:36:21,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c3dcb8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:36:21, skipping insertion in model container [2022-11-02 20:36:21,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:42" (2/3) ... [2022-11-02 20:36:21,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c3dcb8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:36:21, skipping insertion in model container [2022-11-02 20:36:21,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:36:21" (3/3) ... [2022-11-02 20:36:21,089 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bakery.8.prop1-func-interl.c [2022-11-02 20:36:21,109 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:36:21,109 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:36:21,164 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:36:21,171 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;@260a1045, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:36:21,171 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:36:21,177 INFO L276 IsEmpty]: Start isEmpty. Operand has 211 states, 209 states have (on average 1.4976076555023923) internal successors, (313), 210 states have internal predecessors, (313), 0 states have call successors, (0), 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 20:36:21,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:36:21,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:36:21,184 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:36:21,184 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:36:21,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:21,190 INFO L85 PathProgramCache]: Analyzing trace with hash -761744867, now seen corresponding path program 1 times [2022-11-02 20:36:21,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:21,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323366197] [2022-11-02 20:36:21,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:21,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:21,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:22,305 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 20:36:22,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:22,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323366197] [2022-11-02 20:36:22,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323366197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:22,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:22,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:36:22,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230019954] [2022-11-02 20:36:22,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:22,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:36:22,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:22,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:36:22,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:36:22,355 INFO L87 Difference]: Start difference. First operand has 211 states, 209 states have (on average 1.4976076555023923) internal successors, (313), 210 states have internal predecessors, (313), 0 states have call successors, (0), 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 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:24,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:36:27,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:36:27,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:36:27,434 INFO L93 Difference]: Finished difference Result 581 states and 869 transitions. [2022-11-02 20:36:27,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:36:27,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-02 20:36:27,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:36:27,453 INFO L225 Difference]: With dead ends: 581 [2022-11-02 20:36:27,454 INFO L226 Difference]: Without dead ends: 372 [2022-11-02 20:36:27,457 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 20:36:27,461 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 485 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:36:27,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 908 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 2 Unknown, 0 Unchecked, 5.0s Time] [2022-11-02 20:36:27,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2022-11-02 20:36:27,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 209. [2022-11-02 20:36:27,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 208 states have (on average 1.4855769230769231) internal successors, (309), 208 states have internal predecessors, (309), 0 states have call successors, (0), 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 20:36:27,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 309 transitions. [2022-11-02 20:36:27,534 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 309 transitions. Word has length 15 [2022-11-02 20:36:27,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:36:27,535 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 309 transitions. [2022-11-02 20:36:27,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:27,536 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 309 transitions. [2022-11-02 20:36:27,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:36:27,536 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:36:27,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:36:27,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:36:27,537 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:36:27,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:27,545 INFO L85 PathProgramCache]: Analyzing trace with hash -503579429, now seen corresponding path program 1 times [2022-11-02 20:36:27,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:27,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111609914] [2022-11-02 20:36:27,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:27,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:27,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:28,024 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 20:36:28,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:28,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111609914] [2022-11-02 20:36:28,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111609914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:28,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:28,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:36:28,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053676262] [2022-11-02 20:36:28,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:28,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:36:28,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:28,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:36:28,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:36:28,037 INFO L87 Difference]: Start difference. First operand 209 states and 309 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:30,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:36:32,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:36:32,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:36:32,652 INFO L93 Difference]: Finished difference Result 577 states and 856 transitions. [2022-11-02 20:36:32,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:36:32,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-02 20:36:32,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:36:32,655 INFO L225 Difference]: With dead ends: 577 [2022-11-02 20:36:32,655 INFO L226 Difference]: Without dead ends: 372 [2022-11-02 20:36:32,657 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 20:36:32,658 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 479 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:36:32,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 908 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 2 Unknown, 0 Unchecked, 4.6s Time] [2022-11-02 20:36:32,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2022-11-02 20:36:32,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 211. [2022-11-02 20:36:32,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.480952380952381) internal successors, (311), 210 states have internal predecessors, (311), 0 states have call successors, (0), 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 20:36:32,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 311 transitions. [2022-11-02 20:36:32,673 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 311 transitions. Word has length 15 [2022-11-02 20:36:32,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:36:32,674 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 311 transitions. [2022-11-02 20:36:32,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:32,674 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 311 transitions. [2022-11-02 20:36:32,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:36:32,675 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:36:32,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:36:32,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:36:32,676 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:36:32,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:32,676 INFO L85 PathProgramCache]: Analyzing trace with hash -896606439, now seen corresponding path program 1 times [2022-11-02 20:36:32,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:32,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452516617] [2022-11-02 20:36:32,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:32,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:32,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:33,194 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 20:36:33,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:33,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452516617] [2022-11-02 20:36:33,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452516617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:33,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:33,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:36:33,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589156417] [2022-11-02 20:36:33,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:33,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:36:33,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:33,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:36:33,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:36:33,208 INFO L87 Difference]: Start difference. First operand 211 states and 311 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:35,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:36:37,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:36:38,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:36:38,024 INFO L93 Difference]: Finished difference Result 577 states and 855 transitions. [2022-11-02 20:36:38,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:36:38,025 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-02 20:36:38,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:36:38,027 INFO L225 Difference]: With dead ends: 577 [2022-11-02 20:36:38,027 INFO L226 Difference]: Without dead ends: 372 [2022-11-02 20:36:38,029 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 20:36:38,030 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 473 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:36:38,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [473 Valid, 908 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 2 Unknown, 0 Unchecked, 4.8s Time] [2022-11-02 20:36:38,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2022-11-02 20:36:38,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 213. [2022-11-02 20:36:38,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 212 states have (on average 1.4764150943396226) internal successors, (313), 212 states have internal predecessors, (313), 0 states have call successors, (0), 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 20:36:38,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 313 transitions. [2022-11-02 20:36:38,043 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 313 transitions. Word has length 15 [2022-11-02 20:36:38,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:36:38,044 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 313 transitions. [2022-11-02 20:36:38,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:38,044 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 313 transitions. [2022-11-02 20:36:38,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:36:38,045 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:36:38,045 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:36:38,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:36:38,046 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:36:38,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:38,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1705953065, now seen corresponding path program 1 times [2022-11-02 20:36:38,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:38,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323171443] [2022-11-02 20:36:38,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:38,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:38,428 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 20:36:38,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:38,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323171443] [2022-11-02 20:36:38,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323171443] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:38,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:38,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:36:38,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40202497] [2022-11-02 20:36:38,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:38,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:36:38,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:38,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:36:38,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:36:38,432 INFO L87 Difference]: Start difference. First operand 213 states and 313 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:42,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:36:44,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:36:45,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:36:45,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:36:45,459 INFO L93 Difference]: Finished difference Result 617 states and 914 transitions. [2022-11-02 20:36:45,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:36:45,498 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-02 20:36:45,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:36:45,500 INFO L225 Difference]: With dead ends: 617 [2022-11-02 20:36:45,500 INFO L226 Difference]: Without dead ends: 412 [2022-11-02 20:36:45,501 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 20:36:45,507 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 587 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:36:45,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 906 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-11-02 20:36:45,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-11-02 20:36:45,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 215. [2022-11-02 20:36:45,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 214 states have (on average 1.47196261682243) internal successors, (315), 214 states have internal predecessors, (315), 0 states have call successors, (0), 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 20:36:45,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 315 transitions. [2022-11-02 20:36:45,533 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 315 transitions. Word has length 15 [2022-11-02 20:36:45,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:36:45,534 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 315 transitions. [2022-11-02 20:36:45,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:45,534 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 315 transitions. [2022-11-02 20:36:45,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:36:45,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:36:45,535 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:36:45,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:36:45,536 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:36:45,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:45,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1648694763, now seen corresponding path program 1 times [2022-11-02 20:36:45,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:45,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873592269] [2022-11-02 20:36:45,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:45,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:45,997 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 20:36:45,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:45,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873592269] [2022-11-02 20:36:45,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873592269] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:45,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:45,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:36:45,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155074658] [2022-11-02 20:36:46,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:46,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:36:46,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:46,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:36:46,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:36:46,004 INFO L87 Difference]: Start difference. First operand 215 states and 315 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:48,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:36:50,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:36:50,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:36:50,323 INFO L93 Difference]: Finished difference Result 577 states and 853 transitions. [2022-11-02 20:36:50,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:36:50,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-02 20:36:50,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:36:50,326 INFO L225 Difference]: With dead ends: 577 [2022-11-02 20:36:50,326 INFO L226 Difference]: Without dead ends: 372 [2022-11-02 20:36:50,327 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 20:36:50,328 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 461 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:36:50,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 909 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2022-11-02 20:36:50,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2022-11-02 20:36:50,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 217. [2022-11-02 20:36:50,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 216 states have (on average 1.4675925925925926) internal successors, (317), 216 states have internal predecessors, (317), 0 states have call successors, (0), 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 20:36:50,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 317 transitions. [2022-11-02 20:36:50,353 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 317 transitions. Word has length 15 [2022-11-02 20:36:50,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:36:50,353 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 317 transitions. [2022-11-02 20:36:50,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:50,354 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 317 transitions. [2022-11-02 20:36:50,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:36:50,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:36:50,356 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:36:50,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:36:50,357 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:36:50,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:50,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1648635181, now seen corresponding path program 1 times [2022-11-02 20:36:50,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:50,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147229897] [2022-11-02 20:36:50,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:50,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:50,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:36:50,578 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:36:50,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:36:50,930 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:36:50,931 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:36:50,932 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 20:36:50,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:36:50,939 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-02 20:36:50,942 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:36:51,011 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 20:36:51,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:36:51 BoogieIcfgContainer [2022-11-02 20:36:51,041 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:36:51,042 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:36:51,042 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:36:51,042 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:36:51,043 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:36:21" (3/4) ... [2022-11-02 20:36:51,046 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:36:51,046 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:36:51,047 INFO L158 Benchmark]: Toolchain (without parser) took 129983.49ms. Allocated memory was 125.8MB in the beginning and 1.1GB in the end (delta: 987.8MB). Free memory was 88.1MB in the beginning and 578.3MB in the end (delta: -490.2MB). Peak memory consumption was 497.0MB. Max. memory is 16.1GB. [2022-11-02 20:36:51,047 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 88.1MB. Free memory was 45.9MB in the beginning and 45.8MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:36:51,050 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1064.42ms. Allocated memory is still 125.8MB. Free memory was 87.9MB in the beginning and 66.6MB in the end (delta: 21.3MB). Peak memory consumption was 56.7MB. Max. memory is 16.1GB. [2022-11-02 20:36:51,050 INFO L158 Benchmark]: Boogie Procedure Inliner took 468.80ms. Allocated memory was 125.8MB in the beginning and 222.3MB in the end (delta: 96.5MB). Free memory was 66.6MB in the beginning and 137.9MB in the end (delta: -71.3MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. [2022-11-02 20:36:51,050 INFO L158 Benchmark]: Boogie Preprocessor took 364.32ms. Allocated memory is still 222.3MB. Free memory was 137.9MB in the beginning and 115.9MB in the end (delta: 22.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-02 20:36:51,051 INFO L158 Benchmark]: RCFGBuilder took 98112.23ms. Allocated memory was 222.3MB in the beginning and 1.1GB in the end (delta: 891.3MB). Free memory was 115.1MB in the beginning and 682.7MB in the end (delta: -567.6MB). Peak memory consumption was 662.9MB. Max. memory is 16.1GB. [2022-11-02 20:36:51,051 INFO L158 Benchmark]: TraceAbstraction took 29959.72ms. Allocated memory is still 1.1GB. Free memory was 682.7MB in the beginning and 579.4MB in the end (delta: 103.3MB). Peak memory consumption was 104.4MB. Max. memory is 16.1GB. [2022-11-02 20:36:51,052 INFO L158 Benchmark]: Witness Printer took 4.21ms. Allocated memory is still 1.1GB. Free memory is still 578.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:36:51,058 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 88.1MB. Free memory was 45.9MB in the beginning and 45.8MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1064.42ms. Allocated memory is still 125.8MB. Free memory was 87.9MB in the beginning and 66.6MB in the end (delta: 21.3MB). Peak memory consumption was 56.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 468.80ms. Allocated memory was 125.8MB in the beginning and 222.3MB in the end (delta: 96.5MB). Free memory was 66.6MB in the beginning and 137.9MB in the end (delta: -71.3MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 364.32ms. Allocated memory is still 222.3MB. Free memory was 137.9MB in the beginning and 115.9MB in the end (delta: 22.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * RCFGBuilder took 98112.23ms. Allocated memory was 222.3MB in the beginning and 1.1GB in the end (delta: 891.3MB). Free memory was 115.1MB in the beginning and 682.7MB in the end (delta: -567.6MB). Peak memory consumption was 662.9MB. Max. memory is 16.1GB. * TraceAbstraction took 29959.72ms. Allocated memory is still 1.1GB. Free memory was 682.7MB in the beginning and 579.4MB in the end (delta: 103.3MB). Peak memory consumption was 104.4MB. Max. memory is 16.1GB. * Witness Printer took 4.21ms. Allocated memory is still 1.1GB. Free memory is still 578.3MB. 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 342, overapproximation of bitwiseAnd at line 338. 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_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L37] const SORT_2 var_5 = 0; [L38] const SORT_1 var_46 = 0; [L39] const SORT_4 var_99 = 1; [L40] const SORT_4 var_100 = 0; [L41] const SORT_2 var_114 = 0; [L42] const SORT_2 var_116 = 1; [L43] const SORT_3 var_141 = 0; [L44] const SORT_2 var_190 = 2; [L45] const SORT_2 var_192 = 3; [L46] const SORT_4 var_389 = 5; [L47] const SORT_2 var_401 = 5; [L48] const SORT_4 var_510 = 2; [L49] const SORT_4 var_555 = 3; [L50] const SORT_4 var_600 = 4; [L52] SORT_1 input_113; [L53] SORT_1 input_115; [L54] SORT_1 input_120; [L55] SORT_1 input_121; [L56] SORT_1 input_125; [L57] SORT_1 input_126; [L58] SORT_1 input_130; [L59] SORT_1 input_131; [L60] SORT_1 input_135; [L61] SORT_1 input_136; [L62] SORT_1 input_140; [L63] SORT_1 input_148; [L64] SORT_1 input_155; [L65] SORT_1 input_162; [L66] SORT_1 input_169; [L67] SORT_1 input_176; [L68] SORT_1 input_180; [L69] SORT_1 input_181; [L70] SORT_1 input_201; [L71] SORT_1 input_205; [L72] SORT_1 input_206; [L73] SORT_1 input_224; [L74] SORT_1 input_228; [L75] SORT_1 input_229; [L76] SORT_1 input_247; [L77] SORT_1 input_251; [L78] SORT_1 input_252; [L79] SORT_1 input_270; [L80] SORT_1 input_274; [L81] SORT_1 input_275; [L82] SORT_1 input_300; [L83] SORT_1 input_303; [L84] SORT_1 input_319; [L85] SORT_1 input_322; [L86] SORT_1 input_338; [L87] SORT_1 input_341; [L88] SORT_1 input_357; [L89] SORT_1 input_360; [L90] SORT_1 input_376; [L91] SORT_1 input_379; [L93] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L94] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L95] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L96] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L97] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L98] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L99] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L100] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L101] SORT_2 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L102] SORT_2 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L103] SORT_2 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L104] SORT_2 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L105] SORT_2 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L106] SORT_2 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L107] SORT_2 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L108] SORT_2 state_36 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L109] SORT_2 state_38 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L110] SORT_2 state_40 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L111] SORT_2 state_42 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L112] SORT_2 state_44 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L113] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L114] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L115] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L116] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L117] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L118] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L119] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L120] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L121] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L122] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L123] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L124] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L125] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L126] SORT_1 state_73 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L127] SORT_1 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L128] SORT_1 state_77 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L129] SORT_1 state_79 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L130] SORT_1 state_81 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L131] SORT_1 state_83 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L132] SORT_1 state_85 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L133] SORT_1 state_87 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L134] SORT_1 state_89 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L135] SORT_1 state_91 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L136] SORT_1 state_93 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L137] SORT_1 state_95 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L138] SORT_1 state_97 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L140] SORT_2 init_7_arg_1 = var_5; [L141] state_6 = init_7_arg_1 [L142] SORT_2 init_9_arg_1 = var_5; [L143] state_8 = init_9_arg_1 [L144] SORT_2 init_11_arg_1 = var_5; [L145] state_10 = init_11_arg_1 [L146] SORT_2 init_13_arg_1 = var_5; [L147] state_12 = init_13_arg_1 [L148] SORT_2 init_15_arg_1 = var_5; [L149] state_14 = init_15_arg_1 [L150] SORT_2 init_17_arg_1 = var_5; [L151] state_16 = init_17_arg_1 [L152] SORT_2 init_19_arg_1 = var_5; [L153] state_18 = init_19_arg_1 [L154] SORT_2 init_21_arg_1 = var_5; [L155] state_20 = init_21_arg_1 [L156] SORT_2 init_23_arg_1 = var_5; [L157] state_22 = init_23_arg_1 [L158] SORT_2 init_25_arg_1 = var_5; [L159] state_24 = init_25_arg_1 [L160] SORT_2 init_27_arg_1 = var_5; [L161] state_26 = init_27_arg_1 [L162] SORT_2 init_29_arg_1 = var_5; [L163] state_28 = init_29_arg_1 [L164] SORT_2 init_31_arg_1 = var_5; [L165] state_30 = init_31_arg_1 [L166] SORT_2 init_33_arg_1 = var_5; [L167] state_32 = init_33_arg_1 [L168] SORT_2 init_35_arg_1 = var_5; [L169] state_34 = init_35_arg_1 [L170] SORT_2 init_37_arg_1 = var_5; [L171] state_36 = init_37_arg_1 [L172] SORT_2 init_39_arg_1 = var_5; [L173] state_38 = init_39_arg_1 [L174] SORT_2 init_41_arg_1 = var_5; [L175] state_40 = init_41_arg_1 [L176] SORT_2 init_43_arg_1 = var_5; [L177] state_42 = init_43_arg_1 [L178] SORT_2 init_45_arg_1 = var_5; [L179] state_44 = init_45_arg_1 [L180] SORT_1 init_48_arg_1 = var_46; [L181] state_47 = init_48_arg_1 [L182] SORT_1 init_50_arg_1 = var_46; [L183] state_49 = init_50_arg_1 [L184] SORT_1 init_52_arg_1 = var_46; [L185] state_51 = init_52_arg_1 [L186] SORT_1 init_54_arg_1 = var_46; [L187] state_53 = init_54_arg_1 [L188] SORT_1 init_56_arg_1 = var_46; [L189] state_55 = init_56_arg_1 [L190] SORT_1 init_58_arg_1 = var_46; [L191] state_57 = init_58_arg_1 [L192] SORT_1 init_60_arg_1 = var_46; [L193] state_59 = init_60_arg_1 [L194] SORT_1 init_62_arg_1 = var_46; [L195] state_61 = init_62_arg_1 [L196] SORT_1 init_64_arg_1 = var_46; [L197] state_63 = init_64_arg_1 [L198] SORT_1 init_66_arg_1 = var_46; [L199] state_65 = init_66_arg_1 [L200] SORT_1 init_68_arg_1 = var_46; [L201] state_67 = init_68_arg_1 [L202] SORT_1 init_70_arg_1 = var_46; [L203] state_69 = init_70_arg_1 [L204] SORT_1 init_72_arg_1 = var_46; [L205] state_71 = init_72_arg_1 [L206] SORT_1 init_74_arg_1 = var_46; [L207] state_73 = init_74_arg_1 [L208] SORT_1 init_76_arg_1 = var_46; [L209] state_75 = init_76_arg_1 [L210] SORT_1 init_78_arg_1 = var_46; [L211] state_77 = init_78_arg_1 [L212] SORT_1 init_80_arg_1 = var_46; [L213] state_79 = init_80_arg_1 [L214] SORT_1 init_82_arg_1 = var_46; [L215] state_81 = init_82_arg_1 [L216] SORT_1 init_84_arg_1 = var_46; [L217] state_83 = init_84_arg_1 [L218] SORT_1 init_86_arg_1 = var_46; [L219] state_85 = init_86_arg_1 [L220] SORT_1 init_88_arg_1 = var_46; [L221] state_87 = init_88_arg_1 [L222] SORT_1 init_90_arg_1 = var_46; [L223] state_89 = init_90_arg_1 [L224] SORT_1 init_92_arg_1 = var_46; [L225] state_91 = init_92_arg_1 [L226] SORT_1 init_94_arg_1 = var_46; [L227] state_93 = init_94_arg_1 [L228] SORT_1 init_96_arg_1 = var_46; [L229] state_95 = init_96_arg_1 [L230] SORT_1 init_98_arg_1 = var_46; [L231] state_97 = init_98_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_45_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_96_arg_1=0, init_98_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_32=0, state_34=0, state_36=0, state_38=0, state_40=0, state_42=0, state_44=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, state_95=0, state_97=0, var_100=0, var_114=0, var_116=1, var_141=0, var_190=2, var_192=3, var_389=5, var_401=5, var_46=0, var_5=0, var_510=2, var_555=3, var_600=4, var_99=1] [L234] input_113 = __VERIFIER_nondet_uchar() [L235] input_113 = input_113 & mask_SORT_1 [L236] input_115 = __VERIFIER_nondet_uchar() [L237] input_115 = input_115 & mask_SORT_1 [L238] input_120 = __VERIFIER_nondet_uchar() [L239] input_120 = input_120 & mask_SORT_1 [L240] input_121 = __VERIFIER_nondet_uchar() [L241] input_121 = input_121 & mask_SORT_1 [L242] input_125 = __VERIFIER_nondet_uchar() [L243] input_125 = input_125 & mask_SORT_1 [L244] input_126 = __VERIFIER_nondet_uchar() [L245] input_126 = input_126 & mask_SORT_1 [L246] input_130 = __VERIFIER_nondet_uchar() [L247] input_130 = input_130 & mask_SORT_1 [L248] input_131 = __VERIFIER_nondet_uchar() [L249] input_131 = input_131 & mask_SORT_1 [L250] input_135 = __VERIFIER_nondet_uchar() [L251] input_135 = input_135 & mask_SORT_1 [L252] input_136 = __VERIFIER_nondet_uchar() [L253] input_136 = input_136 & mask_SORT_1 [L254] input_140 = __VERIFIER_nondet_uchar() [L255] input_140 = input_140 & mask_SORT_1 [L256] input_148 = __VERIFIER_nondet_uchar() [L257] input_148 = input_148 & mask_SORT_1 [L258] input_155 = __VERIFIER_nondet_uchar() [L259] input_155 = input_155 & mask_SORT_1 [L260] input_162 = __VERIFIER_nondet_uchar() [L261] input_162 = input_162 & mask_SORT_1 [L262] input_169 = __VERIFIER_nondet_uchar() [L263] input_169 = input_169 & mask_SORT_1 [L264] input_176 = __VERIFIER_nondet_uchar() [L265] input_176 = input_176 & mask_SORT_1 [L266] input_180 = __VERIFIER_nondet_uchar() [L267] input_180 = input_180 & mask_SORT_1 [L268] input_181 = __VERIFIER_nondet_uchar() [L269] input_181 = input_181 & mask_SORT_1 [L270] input_201 = __VERIFIER_nondet_uchar() [L271] input_201 = input_201 & mask_SORT_1 [L272] input_205 = __VERIFIER_nondet_uchar() [L273] input_205 = input_205 & mask_SORT_1 [L274] input_206 = __VERIFIER_nondet_uchar() [L275] input_206 = input_206 & mask_SORT_1 [L276] input_224 = __VERIFIER_nondet_uchar() [L277] input_224 = input_224 & mask_SORT_1 [L278] input_228 = __VERIFIER_nondet_uchar() [L279] input_228 = input_228 & mask_SORT_1 [L280] input_229 = __VERIFIER_nondet_uchar() [L281] input_229 = input_229 & mask_SORT_1 [L282] input_247 = __VERIFIER_nondet_uchar() [L283] input_247 = input_247 & mask_SORT_1 [L284] input_251 = __VERIFIER_nondet_uchar() [L285] input_251 = input_251 & mask_SORT_1 [L286] input_252 = __VERIFIER_nondet_uchar() [L287] input_252 = input_252 & mask_SORT_1 [L288] input_270 = __VERIFIER_nondet_uchar() [L289] input_270 = input_270 & mask_SORT_1 [L290] input_274 = __VERIFIER_nondet_uchar() [L291] input_274 = input_274 & mask_SORT_1 [L292] input_275 = __VERIFIER_nondet_uchar() [L293] input_275 = input_275 & mask_SORT_1 [L294] input_300 = __VERIFIER_nondet_uchar() [L295] input_303 = __VERIFIER_nondet_uchar() [L296] input_319 = __VERIFIER_nondet_uchar() [L297] input_322 = __VERIFIER_nondet_uchar() [L298] input_338 = __VERIFIER_nondet_uchar() [L299] input_341 = __VERIFIER_nondet_uchar() [L300] input_357 = __VERIFIER_nondet_uchar() [L301] input_360 = __VERIFIER_nondet_uchar() [L302] input_376 = __VERIFIER_nondet_uchar() [L303] input_379 = __VERIFIER_nondet_uchar() [L306] SORT_1 var_101_arg_0 = state_55; [L307] SORT_4 var_101_arg_1 = var_99; [L308] SORT_4 var_101_arg_2 = var_100; VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_45_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_96_arg_1=0, init_98_arg_1=0, init_9_arg_1=0, input_113=0, input_115=0, input_120=1, input_121=0, input_125=0, input_126=0, input_130=0, input_131=0, input_135=0, input_136=0, input_140=0, input_148=0, input_155=0, input_162=1, input_169=0, input_176=0, input_180=1, input_181=0, input_201=1, input_205=0, input_206=0, input_224=0, input_228=0, input_229=0, input_247=1, input_251=0, input_252=0, input_270=0, input_274=0, input_275=0, input_300=5, input_303=11, input_319=6, input_322=9, input_338=1, input_341=4, input_357=8, input_360=2, input_376=3, input_379=10, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_32=0, state_34=0, state_36=0, state_38=0, state_40=0, state_42=0, state_44=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, state_95=0, state_97=0, var_100=0, var_101_arg_0=0, var_101_arg_1=1, var_101_arg_2=0, var_114=0, var_116=1, var_141=0, var_190=2, var_192=3, var_389=5, var_401=5, var_46=0, var_5=0, var_510=2, var_555=3, var_600=4, var_99=1] [L309] EXPR var_101_arg_0 ? var_101_arg_1 : var_101_arg_2 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_45_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_96_arg_1=0, init_98_arg_1=0, init_9_arg_1=0, input_113=0, input_115=0, input_120=1, input_121=0, input_125=0, input_126=0, input_130=0, input_131=0, input_135=0, input_136=0, input_140=0, input_148=0, input_155=0, input_162=1, input_169=0, input_176=0, input_180=1, input_181=0, input_201=1, input_205=0, input_206=0, input_224=0, input_228=0, input_229=0, input_247=1, input_251=0, input_252=0, input_270=0, input_274=0, input_275=0, input_300=5, input_303=11, input_319=6, input_322=9, input_338=1, input_341=4, input_357=8, input_360=2, input_376=3, input_379=10, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_32=0, state_34=0, state_36=0, state_38=0, state_40=0, state_42=0, state_44=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, state_95=0, state_97=0, var_100=0, var_101_arg_0=0, var_101_arg_0 ? var_101_arg_1 : var_101_arg_2=0, var_101_arg_1=1, var_101_arg_2=0, var_114=0, var_116=1, var_141=0, var_190=2, var_192=3, var_389=5, var_401=5, var_46=0, var_5=0, var_510=2, var_555=3, var_600=4, var_99=1] [L309] SORT_4 var_101 = var_101_arg_0 ? var_101_arg_1 : var_101_arg_2; [L310] SORT_1 var_102_arg_0 = state_65; [L311] SORT_4 var_102_arg_1 = var_99; [L312] SORT_4 var_102_arg_2 = var_100; VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_45_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_96_arg_1=0, init_98_arg_1=0, init_9_arg_1=0, input_113=0, input_115=0, input_120=1, input_121=0, input_125=0, input_126=0, input_130=0, input_131=0, input_135=0, input_136=0, input_140=0, input_148=0, input_155=0, input_162=1, input_169=0, input_176=0, input_180=1, input_181=0, input_201=1, input_205=0, input_206=0, input_224=0, input_228=0, input_229=0, input_247=1, input_251=0, input_252=0, input_270=0, input_274=0, input_275=0, input_300=5, input_303=11, input_319=6, input_322=9, input_338=1, input_341=4, input_357=8, input_360=2, input_376=3, input_379=10, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_32=0, state_34=0, state_36=0, state_38=0, state_40=0, state_42=0, state_44=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, state_95=0, state_97=0, var_100=0, var_101=0, var_101_arg_0=0, var_101_arg_1=1, var_101_arg_2=0, var_102_arg_0=0, var_102_arg_1=1, var_102_arg_2=0, var_114=0, var_116=1, var_141=0, var_190=2, var_192=3, var_389=5, var_401=5, var_46=0, var_5=0, var_510=2, var_555=3, var_600=4, var_99=1] [L313] EXPR var_102_arg_0 ? var_102_arg_1 : var_102_arg_2 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_45_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_96_arg_1=0, init_98_arg_1=0, init_9_arg_1=0, input_113=0, input_115=0, input_120=1, input_121=0, input_125=0, input_126=0, input_130=0, input_131=0, input_135=0, input_136=0, input_140=0, input_148=0, input_155=0, input_162=1, input_169=0, input_176=0, input_180=1, input_181=0, input_201=1, input_205=0, input_206=0, input_224=0, input_228=0, input_229=0, input_247=1, input_251=0, input_252=0, input_270=0, input_274=0, input_275=0, input_300=5, input_303=11, input_319=6, input_322=9, input_338=1, input_341=4, input_357=8, input_360=2, input_376=3, input_379=10, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_32=0, state_34=0, state_36=0, state_38=0, state_40=0, state_42=0, state_44=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, state_95=0, state_97=0, var_100=0, var_101=0, var_101_arg_0=0, var_101_arg_1=1, var_101_arg_2=0, var_102_arg_0=0, var_102_arg_0 ? var_102_arg_1 : var_102_arg_2=0, var_102_arg_1=1, var_102_arg_2=0, var_114=0, var_116=1, var_141=0, var_190=2, var_192=3, var_389=5, var_401=5, var_46=0, var_5=0, var_510=2, var_555=3, var_600=4, var_99=1] [L313] SORT_4 var_102 = var_102_arg_0 ? var_102_arg_1 : var_102_arg_2; [L314] SORT_4 var_103_arg_0 = var_101; [L315] SORT_4 var_103_arg_1 = var_102; [L316] SORT_4 var_103 = var_103_arg_0 + var_103_arg_1; [L317] SORT_1 var_104_arg_0 = state_75; [L318] SORT_4 var_104_arg_1 = var_99; [L319] SORT_4 var_104_arg_2 = var_100; VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_45_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_96_arg_1=0, init_98_arg_1=0, init_9_arg_1=0, input_113=0, input_115=0, input_120=1, input_121=0, input_125=0, input_126=0, input_130=0, input_131=0, input_135=0, input_136=0, input_140=0, input_148=0, input_155=0, input_162=1, input_169=0, input_176=0, input_180=1, input_181=0, input_201=1, input_205=0, input_206=0, input_224=0, input_228=0, input_229=0, input_247=1, input_251=0, input_252=0, input_270=0, input_274=0, input_275=0, input_300=5, input_303=11, input_319=6, input_322=9, input_338=1, input_341=4, input_357=8, input_360=2, input_376=3, input_379=10, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_32=0, state_34=0, state_36=0, state_38=0, state_40=0, state_42=0, state_44=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, state_95=0, state_97=0, var_100=0, var_101=0, var_101_arg_0=0, var_101_arg_1=1, var_101_arg_2=0, var_102=0, var_102_arg_0=0, var_102_arg_1=1, var_102_arg_2=0, var_103=0, var_103_arg_0=0, var_103_arg_1=0, var_104_arg_0=0, var_104_arg_1=1, var_104_arg_2=0, var_114=0, var_116=1, var_141=0, var_190=2, var_192=3, var_389=5, var_401=5, var_46=0, var_5=0, var_510=2, var_555=3, var_600=4, var_99=1] [L320] EXPR var_104_arg_0 ? var_104_arg_1 : var_104_arg_2 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_45_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_96_arg_1=0, init_98_arg_1=0, init_9_arg_1=0, input_113=0, input_115=0, input_120=1, input_121=0, input_125=0, input_126=0, input_130=0, input_131=0, input_135=0, input_136=0, input_140=0, input_148=0, input_155=0, input_162=1, input_169=0, input_176=0, input_180=1, input_181=0, input_201=1, input_205=0, input_206=0, input_224=0, input_228=0, input_229=0, input_247=1, input_251=0, input_252=0, input_270=0, input_274=0, input_275=0, input_300=5, input_303=11, input_319=6, input_322=9, input_338=1, input_341=4, input_357=8, input_360=2, input_376=3, input_379=10, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_32=0, state_34=0, state_36=0, state_38=0, state_40=0, state_42=0, state_44=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, state_95=0, state_97=0, var_100=0, var_101=0, var_101_arg_0=0, var_101_arg_1=1, var_101_arg_2=0, var_102=0, var_102_arg_0=0, var_102_arg_1=1, var_102_arg_2=0, var_103=0, var_103_arg_0=0, var_103_arg_1=0, var_104_arg_0=0, var_104_arg_0 ? var_104_arg_1 : var_104_arg_2=0, var_104_arg_1=1, var_104_arg_2=0, var_114=0, var_116=1, var_141=0, var_190=2, var_192=3, var_389=5, var_401=5, var_46=0, var_5=0, var_510=2, var_555=3, var_600=4, var_99=1] [L320] SORT_4 var_104 = var_104_arg_0 ? var_104_arg_1 : var_104_arg_2; [L321] SORT_4 var_105_arg_0 = var_103; [L322] SORT_4 var_105_arg_1 = var_104; [L323] SORT_4 var_105 = var_105_arg_0 + var_105_arg_1; [L324] SORT_1 var_106_arg_0 = state_85; [L325] SORT_4 var_106_arg_1 = var_99; [L326] SORT_4 var_106_arg_2 = var_100; VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_45_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_96_arg_1=0, init_98_arg_1=0, init_9_arg_1=0, input_113=0, input_115=0, input_120=1, input_121=0, input_125=0, input_126=0, input_130=0, input_131=0, input_135=0, input_136=0, input_140=0, input_148=0, input_155=0, input_162=1, input_169=0, input_176=0, input_180=1, input_181=0, input_201=1, input_205=0, input_206=0, input_224=0, input_228=0, input_229=0, input_247=1, input_251=0, input_252=0, input_270=0, input_274=0, input_275=0, input_300=5, input_303=11, input_319=6, input_322=9, input_338=1, input_341=4, input_357=8, input_360=2, input_376=3, input_379=10, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_32=0, state_34=0, state_36=0, state_38=0, state_40=0, state_42=0, state_44=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, state_95=0, state_97=0, var_100=0, var_101=0, var_101_arg_0=0, var_101_arg_1=1, var_101_arg_2=0, var_102=0, var_102_arg_0=0, var_102_arg_1=1, var_102_arg_2=0, var_103=0, var_103_arg_0=0, var_103_arg_1=0, var_104=0, var_104_arg_0=0, var_104_arg_1=1, var_104_arg_2=0, var_105=0, var_105_arg_0=0, var_105_arg_1=0, var_106_arg_0=0, var_106_arg_1=1, var_106_arg_2=0, var_114=0, var_116=1, var_141=0, var_190=2, var_192=3, var_389=5, var_401=5, var_46=0, var_5=0, var_510=2, var_555=3, var_600=4, var_99=1] [L327] EXPR var_106_arg_0 ? var_106_arg_1 : var_106_arg_2 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_45_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_96_arg_1=0, init_98_arg_1=0, init_9_arg_1=0, input_113=0, input_115=0, input_120=1, input_121=0, input_125=0, input_126=0, input_130=0, input_131=0, input_135=0, input_136=0, input_140=0, input_148=0, input_155=0, input_162=1, input_169=0, input_176=0, input_180=1, input_181=0, input_201=1, input_205=0, input_206=0, input_224=0, input_228=0, input_229=0, input_247=1, input_251=0, input_252=0, input_270=0, input_274=0, input_275=0, input_300=5, input_303=11, input_319=6, input_322=9, input_338=1, input_341=4, input_357=8, input_360=2, input_376=3, input_379=10, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_32=0, state_34=0, state_36=0, state_38=0, state_40=0, state_42=0, state_44=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, state_95=0, state_97=0, var_100=0, var_101=0, var_101_arg_0=0, var_101_arg_1=1, var_101_arg_2=0, var_102=0, var_102_arg_0=0, var_102_arg_1=1, var_102_arg_2=0, var_103=0, var_103_arg_0=0, var_103_arg_1=0, var_104=0, var_104_arg_0=0, var_104_arg_1=1, var_104_arg_2=0, var_105=0, var_105_arg_0=0, var_105_arg_1=0, var_106_arg_0=0, var_106_arg_0 ? var_106_arg_1 : var_106_arg_2=0, var_106_arg_1=1, var_106_arg_2=0, var_114=0, var_116=1, var_141=0, var_190=2, var_192=3, var_389=5, var_401=5, var_46=0, var_5=0, var_510=2, var_555=3, var_600=4, var_99=1] [L327] SORT_4 var_106 = var_106_arg_0 ? var_106_arg_1 : var_106_arg_2; [L328] SORT_4 var_107_arg_0 = var_105; [L329] SORT_4 var_107_arg_1 = var_106; [L330] SORT_4 var_107 = var_107_arg_0 + var_107_arg_1; [L331] SORT_1 var_108_arg_0 = state_95; [L332] SORT_4 var_108_arg_1 = var_99; [L333] SORT_4 var_108_arg_2 = var_100; VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_45_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_96_arg_1=0, init_98_arg_1=0, init_9_arg_1=0, input_113=0, input_115=0, input_120=1, input_121=0, input_125=0, input_126=0, input_130=0, input_131=0, input_135=0, input_136=0, input_140=0, input_148=0, input_155=0, input_162=1, input_169=0, input_176=0, input_180=1, input_181=0, input_201=1, input_205=0, input_206=0, input_224=0, input_228=0, input_229=0, input_247=1, input_251=0, input_252=0, input_270=0, input_274=0, input_275=0, input_300=5, input_303=11, input_319=6, input_322=9, input_338=1, input_341=4, input_357=8, input_360=2, input_376=3, input_379=10, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_32=0, state_34=0, state_36=0, state_38=0, state_40=0, state_42=0, state_44=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, state_95=0, state_97=0, var_100=0, var_101=0, var_101_arg_0=0, var_101_arg_1=1, var_101_arg_2=0, var_102=0, var_102_arg_0=0, var_102_arg_1=1, var_102_arg_2=0, var_103=0, var_103_arg_0=0, var_103_arg_1=0, var_104=0, var_104_arg_0=0, var_104_arg_1=1, var_104_arg_2=0, var_105=0, var_105_arg_0=0, var_105_arg_1=0, var_106=0, var_106_arg_0=0, var_106_arg_1=1, var_106_arg_2=0, var_107=0, var_107_arg_0=0, var_107_arg_1=0, var_108_arg_0=0, var_108_arg_1=1, var_108_arg_2=0, var_114=0, var_116=1, var_141=0, var_190=2, var_192=3, var_389=5, var_401=5, var_46=0, var_5=0, var_510=2, var_555=3, var_600=4, var_99=1] [L334] EXPR var_108_arg_0 ? var_108_arg_1 : var_108_arg_2 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_45_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_96_arg_1=0, init_98_arg_1=0, init_9_arg_1=0, input_113=0, input_115=0, input_120=1, input_121=0, input_125=0, input_126=0, input_130=0, input_131=0, input_135=0, input_136=0, input_140=0, input_148=0, input_155=0, input_162=1, input_169=0, input_176=0, input_180=1, input_181=0, input_201=1, input_205=0, input_206=0, input_224=0, input_228=0, input_229=0, input_247=1, input_251=0, input_252=0, input_270=0, input_274=0, input_275=0, input_300=5, input_303=11, input_319=6, input_322=9, input_338=1, input_341=4, input_357=8, input_360=2, input_376=3, input_379=10, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_32=0, state_34=0, state_36=0, state_38=0, state_40=0, state_42=0, state_44=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, state_95=0, state_97=0, var_100=0, var_101=0, var_101_arg_0=0, var_101_arg_1=1, var_101_arg_2=0, var_102=0, var_102_arg_0=0, var_102_arg_1=1, var_102_arg_2=0, var_103=0, var_103_arg_0=0, var_103_arg_1=0, var_104=0, var_104_arg_0=0, var_104_arg_1=1, var_104_arg_2=0, var_105=0, var_105_arg_0=0, var_105_arg_1=0, var_106=0, var_106_arg_0=0, var_106_arg_1=1, var_106_arg_2=0, var_107=0, var_107_arg_0=0, var_107_arg_1=0, var_108_arg_0=0, var_108_arg_0 ? var_108_arg_1 : var_108_arg_2=0, var_108_arg_1=1, var_108_arg_2=0, var_114=0, var_116=1, var_141=0, var_190=2, var_192=3, var_389=5, var_401=5, var_46=0, var_5=0, var_510=2, var_555=3, var_600=4, var_99=1] [L334] SORT_4 var_108 = var_108_arg_0 ? var_108_arg_1 : var_108_arg_2; [L335] SORT_4 var_109_arg_0 = var_107; [L336] SORT_4 var_109_arg_1 = var_108; [L337] SORT_4 var_109 = var_109_arg_0 + var_109_arg_1; [L338] var_109 = var_109 & mask_SORT_4 [L339] SORT_4 var_110_arg_0 = var_109; [L340] SORT_4 var_110_arg_1 = var_99; [L341] SORT_1 var_110 = var_110_arg_0 <= var_110_arg_1; [L342] SORT_1 var_111_arg_0 = ~state_97; [L343] var_111_arg_0 = var_111_arg_0 & mask_SORT_1 [L344] SORT_1 var_111_arg_1 = ~var_110; [L345] var_111_arg_1 = var_111_arg_1 & mask_SORT_1 [L346] SORT_1 var_111 = var_111_arg_0 & var_111_arg_1; [L347] var_111 = var_111 & mask_SORT_1 [L348] SORT_1 bad_112_arg_0 = var_111; [L349] CALL __VERIFIER_assert(!(bad_112_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, 211 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 29.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 26.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 mSolverCounterUnknown, 2485 SdHoareTripleChecker+Valid, 25.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2485 mSDsluCounter, 4539 SdHoareTripleChecker+Invalid, 25.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3021 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 1518 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=217occurred in iteration=5, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 835 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 130 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 20:36:51,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/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_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.8.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/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_aef13323-8241-439c-a633-c822496ad316/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 c74d906337e06c8dd2c0528b072883bb6b5dcc493fa945e0ee9e0dd423781a39 --- 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 20:36:53,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:36:53,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:36:53,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:36:53,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:36:53,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:36:53,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:36:53,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:36:53,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:36:53,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:36:53,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:36:53,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:36:53,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:36:53,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:36:53,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:36:53,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:36:53,800 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:36:53,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:36:53,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:36:53,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:36:53,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:36:53,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:36:53,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:36:53,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:36:53,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:36:53,828 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:36:53,829 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:36:53,830 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:36:53,831 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:36:53,832 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:36:53,833 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:36:53,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:36:53,835 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:36:53,836 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:36:53,838 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:36:53,838 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:36:53,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:36:53,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:36:53,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:36:53,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:36:53,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:36:53,844 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-02 20:36:53,880 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:36:53,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:36:53,882 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:36:53,882 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:36:53,883 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:36:53,883 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:36:53,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:36:53,885 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:36:53,886 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:36:53,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:36:53,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:36:53,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:36:53,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:36:53,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:36:53,888 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 20:36:53,888 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-02 20:36:53,889 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-02 20:36:53,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:36:53,889 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:36:53,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:36:53,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:36:53,890 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:36:53,890 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:36:53,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:36:53,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:36:53,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:36:53,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:36:53,892 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-02 20:36:53,892 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-02 20:36:53,892 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:36:53,892 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:36:53,892 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:36:53,893 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-02 20:36:53,893 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_aef13323-8241-439c-a633-c822496ad316/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c74d906337e06c8dd2c0528b072883bb6b5dcc493fa945e0ee9e0dd423781a39 [2022-11-02 20:36:54,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:36:54,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:36:54,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:36:54,353 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:36:54,354 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:36:54,355 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.8.prop1-func-interl.c [2022-11-02 20:36:54,428 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/data/895be879e/62e24d7c451c484a8a6615400c0901d4/FLAGfc8a6f1db [2022-11-02 20:36:55,177 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:36:55,178 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.8.prop1-func-interl.c [2022-11-02 20:36:55,196 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/data/895be879e/62e24d7c451c484a8a6615400c0901d4/FLAGfc8a6f1db [2022-11-02 20:36:55,312 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/data/895be879e/62e24d7c451c484a8a6615400c0901d4 [2022-11-02 20:36:55,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:36:55,316 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:36:55,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:36:55,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:36:55,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:36:55,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:36:55" (1/1) ... [2022-11-02 20:36:55,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@498df856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:55, skipping insertion in model container [2022-11-02 20:36:55,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:36:55" (1/1) ... [2022-11-02 20:36:55,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:36:55,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:36:55,651 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_aef13323-8241-439c-a633-c822496ad316/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.8.prop1-func-interl.c[1014,1027] [2022-11-02 20:36:56,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:36:56,244 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:36:56,256 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_aef13323-8241-439c-a633-c822496ad316/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.8.prop1-func-interl.c[1014,1027] [2022-11-02 20:36:56,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:36:56,560 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:36:56,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:56 WrapperNode [2022-11-02 20:36:56,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:36:56,563 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:36:56,563 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:36:56,563 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:36:56,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:56" (1/1) ... [2022-11-02 20:36:56,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:56" (1/1) ... [2022-11-02 20:36:56,866 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3137 [2022-11-02 20:36:56,866 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:36:56,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:36:56,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:36:56,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:36:56,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:56" (1/1) ... [2022-11-02 20:36:56,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:56" (1/1) ... [2022-11-02 20:36:56,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:56" (1/1) ... [2022-11-02 20:36:56,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:56" (1/1) ... [2022-11-02 20:36:56,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:56" (1/1) ... [2022-11-02 20:36:56,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:56" (1/1) ... [2022-11-02 20:36:56,982 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:56" (1/1) ... [2022-11-02 20:36:56,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:56" (1/1) ... [2022-11-02 20:36:57,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:36:57,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:36:57,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:36:57,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:36:57,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:56" (1/1) ... [2022-11-02 20:36:57,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:36:57,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:36:57,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:36:57,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:36:57,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:36:57,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:36:57,801 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:36:57,803 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:37:00,552 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:37:00,562 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:37:00,563 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:37:00,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:37:00 BoogieIcfgContainer [2022-11-02 20:37:00,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:37:00,568 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:37:00,568 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:37:00,572 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:37:00,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:36:55" (1/3) ... [2022-11-02 20:37:00,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c07702e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:37:00, skipping insertion in model container [2022-11-02 20:37:00,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:56" (2/3) ... [2022-11-02 20:37:00,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c07702e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:37:00, skipping insertion in model container [2022-11-02 20:37:00,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:37:00" (3/3) ... [2022-11-02 20:37:00,575 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bakery.8.prop1-func-interl.c [2022-11-02 20:37:00,596 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:37:00,597 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:37:00,675 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:37:00,681 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;@6800a6cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:37:00,681 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:37:00,686 INFO L276 IsEmpty]: Start isEmpty. Operand has 211 states, 209 states have (on average 1.4976076555023923) internal successors, (313), 210 states have internal predecessors, (313), 0 states have call successors, (0), 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 20:37:00,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:37:00,693 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:00,693 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:00,694 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:00,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:00,700 INFO L85 PathProgramCache]: Analyzing trace with hash -761744867, now seen corresponding path program 1 times [2022-11-02 20:37:00,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:00,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1192281461] [2022-11-02 20:37:00,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:00,715 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:00,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:00,719 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:00,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-02 20:37:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:01,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:37:01,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:01,482 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 20:37:01,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:01,484 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:01,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1192281461] [2022-11-02 20:37:01,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1192281461] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:01,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:01,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:37:01,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438775984] [2022-11-02 20:37:01,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:01,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:37:01,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:01,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:37:01,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:37:01,544 INFO L87 Difference]: Start difference. First operand has 211 states, 209 states have (on average 1.4976076555023923) internal successors, (313), 210 states have internal predecessors, (313), 0 states have call successors, (0), 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 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:02,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:02,022 INFO L93 Difference]: Finished difference Result 825 states and 1235 transitions. [2022-11-02 20:37:02,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:37:02,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-02 20:37:02,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:02,052 INFO L225 Difference]: With dead ends: 825 [2022-11-02 20:37:02,056 INFO L226 Difference]: Without dead ends: 616 [2022-11-02 20:37:02,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 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 20:37:02,066 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 907 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:02,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [907 Valid, 1207 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:37:02,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2022-11-02 20:37:02,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 209. [2022-11-02 20:37:02,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 208 states have (on average 1.4855769230769231) internal successors, (309), 208 states have internal predecessors, (309), 0 states have call successors, (0), 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 20:37:02,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 309 transitions. [2022-11-02 20:37:02,145 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 309 transitions. Word has length 15 [2022-11-02 20:37:02,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:02,145 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 309 transitions. [2022-11-02 20:37:02,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:02,146 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 309 transitions. [2022-11-02 20:37:02,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:37:02,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:02,147 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:02,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-02 20:37:02,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:02,361 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:02,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:02,361 INFO L85 PathProgramCache]: Analyzing trace with hash -503579429, now seen corresponding path program 1 times [2022-11-02 20:37:02,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:02,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1268185020] [2022-11-02 20:37:02,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:02,363 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:02,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:02,364 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:02,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-02 20:37:02,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:02,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:37:02,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:02,992 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 20:37:02,992 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:02,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:02,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1268185020] [2022-11-02 20:37:02,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1268185020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:02,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:02,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:37:02,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896866611] [2022-11-02 20:37:02,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:02,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:37:02,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:02,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:37:02,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:37:02,997 INFO L87 Difference]: Start difference. First operand 209 states and 309 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:03,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:03,278 INFO L93 Difference]: Finished difference Result 821 states and 1219 transitions. [2022-11-02 20:37:03,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:37:03,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-02 20:37:03,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:03,284 INFO L225 Difference]: With dead ends: 821 [2022-11-02 20:37:03,284 INFO L226 Difference]: Without dead ends: 616 [2022-11-02 20:37:03,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 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 20:37:03,286 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 901 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:03,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 1206 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:37:03,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2022-11-02 20:37:03,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 211. [2022-11-02 20:37:03,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.480952380952381) internal successors, (311), 210 states have internal predecessors, (311), 0 states have call successors, (0), 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 20:37:03,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 311 transitions. [2022-11-02 20:37:03,298 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 311 transitions. Word has length 15 [2022-11-02 20:37:03,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:03,299 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 311 transitions. [2022-11-02 20:37:03,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:03,299 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 311 transitions. [2022-11-02 20:37:03,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:37:03,300 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:03,300 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:03,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:03,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:03,513 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:03,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:03,514 INFO L85 PathProgramCache]: Analyzing trace with hash -896606439, now seen corresponding path program 1 times [2022-11-02 20:37:03,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:03,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588593473] [2022-11-02 20:37:03,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:03,515 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:03,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:03,517 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:03,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-02 20:37:04,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:04,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:37:04,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:04,100 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 20:37:04,100 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:04,100 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:04,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588593473] [2022-11-02 20:37:04,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588593473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:04,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:04,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:37:04,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129560878] [2022-11-02 20:37:04,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:04,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:37:04,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:04,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:37:04,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:37:04,103 INFO L87 Difference]: Start difference. First operand 211 states and 311 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:04,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:04,376 INFO L93 Difference]: Finished difference Result 821 states and 1218 transitions. [2022-11-02 20:37:04,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:37:04,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-02 20:37:04,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:04,386 INFO L225 Difference]: With dead ends: 821 [2022-11-02 20:37:04,387 INFO L226 Difference]: Without dead ends: 616 [2022-11-02 20:37:04,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 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 20:37:04,390 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 895 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:04,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [895 Valid, 1205 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:37:04,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2022-11-02 20:37:04,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 213. [2022-11-02 20:37:04,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 212 states have (on average 1.4764150943396226) internal successors, (313), 212 states have internal predecessors, (313), 0 states have call successors, (0), 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 20:37:04,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 313 transitions. [2022-11-02 20:37:04,403 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 313 transitions. Word has length 15 [2022-11-02 20:37:04,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:04,404 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 313 transitions. [2022-11-02 20:37:04,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:04,404 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 313 transitions. [2022-11-02 20:37:04,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:37:04,405 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:04,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:04,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:04,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:04,625 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:04,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:04,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1705953065, now seen corresponding path program 1 times [2022-11-02 20:37:04,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:04,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685082407] [2022-11-02 20:37:04,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:04,626 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:04,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:04,627 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:04,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-02 20:37:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:05,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:37:05,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:05,251 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 20:37:05,252 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:05,252 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:05,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685082407] [2022-11-02 20:37:05,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685082407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:05,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:05,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:37:05,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102221467] [2022-11-02 20:37:05,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:05,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:37:05,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:05,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:37:05,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:37:05,255 INFO L87 Difference]: Start difference. First operand 213 states and 313 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:05,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:05,534 INFO L93 Difference]: Finished difference Result 821 states and 1217 transitions. [2022-11-02 20:37:05,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:37:05,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-02 20:37:05,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:05,539 INFO L225 Difference]: With dead ends: 821 [2022-11-02 20:37:05,540 INFO L226 Difference]: Without dead ends: 616 [2022-11-02 20:37:05,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 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 20:37:05,542 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 889 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:05,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 1204 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:37:05,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2022-11-02 20:37:05,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 215. [2022-11-02 20:37:05,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 214 states have (on average 1.47196261682243) internal successors, (315), 214 states have internal predecessors, (315), 0 states have call successors, (0), 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 20:37:05,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 315 transitions. [2022-11-02 20:37:05,570 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 315 transitions. Word has length 15 [2022-11-02 20:37:05,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:05,571 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 315 transitions. [2022-11-02 20:37:05,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:05,571 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 315 transitions. [2022-11-02 20:37:05,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:37:05,572 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:05,572 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:05,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:05,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:05,785 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:05,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:05,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1648694763, now seen corresponding path program 1 times [2022-11-02 20:37:05,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:05,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [468938825] [2022-11-02 20:37:05,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:05,786 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:05,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:05,788 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:05,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-02 20:37:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:06,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:37:06,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:06,401 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 20:37:06,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:06,402 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:06,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [468938825] [2022-11-02 20:37:06,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [468938825] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:06,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:06,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:37:06,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454441069] [2022-11-02 20:37:06,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:06,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:37:06,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:06,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:37:06,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:37:06,413 INFO L87 Difference]: Start difference. First operand 215 states and 315 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:06,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:06,628 INFO L93 Difference]: Finished difference Result 821 states and 1216 transitions. [2022-11-02 20:37:06,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:37:06,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-02 20:37:06,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:06,634 INFO L225 Difference]: With dead ends: 821 [2022-11-02 20:37:06,634 INFO L226 Difference]: Without dead ends: 616 [2022-11-02 20:37:06,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 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 20:37:06,635 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 883 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:06,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 1206 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:37:06,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2022-11-02 20:37:06,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 217. [2022-11-02 20:37:06,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 216 states have (on average 1.4675925925925926) internal successors, (317), 216 states have internal predecessors, (317), 0 states have call successors, (0), 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 20:37:06,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 317 transitions. [2022-11-02 20:37:06,645 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 317 transitions. Word has length 15 [2022-11-02 20:37:06,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:06,645 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 317 transitions. [2022-11-02 20:37:06,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:06,645 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 317 transitions. [2022-11-02 20:37:06,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:37:06,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:06,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:06,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:06,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:06,855 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:06,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:06,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1648635181, now seen corresponding path program 1 times [2022-11-02 20:37:06,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:06,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1750836034] [2022-11-02 20:37:06,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:06,856 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:06,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:06,857 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:06,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-02 20:37:07,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:07,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-02 20:37:07,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:07,832 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 20:37:07,832 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:07,832 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:07,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1750836034] [2022-11-02 20:37:07,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1750836034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:07,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:07,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-02 20:37:07,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203363605] [2022-11-02 20:37:07,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:07,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-02 20:37:07,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:07,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-02 20:37:07,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-02 20:37:07,835 INFO L87 Difference]: Start difference. First operand 217 states and 317 transitions. Second operand has 14 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:12,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:12,071 INFO L93 Difference]: Finished difference Result 1302 states and 1922 transitions. [2022-11-02 20:37:12,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-02 20:37:12,072 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-02 20:37:12,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:12,076 INFO L225 Difference]: With dead ends: 1302 [2022-11-02 20:37:12,076 INFO L226 Difference]: Without dead ends: 1300 [2022-11-02 20:37:12,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1034 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=763, Invalid=2659, Unknown=0, NotChecked=0, Total=3422 [2022-11-02 20:37:12,079 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 3298 mSDsluCounter, 5911 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3298 SdHoareTripleChecker+Valid, 6228 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:12,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3298 Valid, 6228 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-02 20:37:12,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1300 states. [2022-11-02 20:37:12,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1300 to 227. [2022-11-02 20:37:12,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 226 states have (on average 1.4646017699115044) internal successors, (331), 226 states have internal predecessors, (331), 0 states have call successors, (0), 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 20:37:12,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 331 transitions. [2022-11-02 20:37:12,094 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 331 transitions. Word has length 15 [2022-11-02 20:37:12,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:12,094 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 331 transitions. [2022-11-02 20:37:12,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:12,095 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 331 transitions. [2022-11-02 20:37:12,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:37:12,100 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:12,101 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:37:12,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:12,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:12,320 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:12,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:12,321 INFO L85 PathProgramCache]: Analyzing trace with hash -939818967, now seen corresponding path program 1 times [2022-11-02 20:37:12,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:12,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2033254804] [2022-11-02 20:37:12,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:12,327 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:12,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:12,328 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:12,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-02 20:37:13,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:13,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:37:13,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:14,120 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:14,120 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:14,120 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:14,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2033254804] [2022-11-02 20:37:14,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2033254804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:14,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:14,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:37:14,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560524371] [2022-11-02 20:37:14,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:14,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:37:14,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:14,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:37:14,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:37:14,123 INFO L87 Difference]: Start difference. First operand 227 states and 331 transitions. Second operand has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:14,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:14,387 INFO L93 Difference]: Finished difference Result 849 states and 1255 transitions. [2022-11-02 20:37:14,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:37:14,391 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:37:14,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:14,394 INFO L225 Difference]: With dead ends: 849 [2022-11-02 20:37:14,394 INFO L226 Difference]: Without dead ends: 634 [2022-11-02 20:37:14,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 215 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 20:37:14,395 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 745 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:14,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 1189 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:37:14,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2022-11-02 20:37:14,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 281. [2022-11-02 20:37:14,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 280 states have (on average 1.4642857142857142) internal successors, (410), 280 states have internal predecessors, (410), 0 states have call successors, (0), 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 20:37:14,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 410 transitions. [2022-11-02 20:37:14,407 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 410 transitions. Word has length 218 [2022-11-02 20:37:14,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:14,408 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 410 transitions. [2022-11-02 20:37:14,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:14,409 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 410 transitions. [2022-11-02 20:37:14,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:37:14,412 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:14,413 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:37:14,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:14,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:14,626 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:14,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:14,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1949956651, now seen corresponding path program 1 times [2022-11-02 20:37:14,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:14,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900045004] [2022-11-02 20:37:14,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:14,631 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:14,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:14,632 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:14,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-02 20:37:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:15,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:37:15,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:16,236 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:16,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:16,237 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:16,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900045004] [2022-11-02 20:37:16,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [900045004] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:16,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:16,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:37:16,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435465483] [2022-11-02 20:37:16,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:16,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:37:16,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:16,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:37:16,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:37:16,240 INFO L87 Difference]: Start difference. First operand 281 states and 410 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:16,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:16,573 INFO L93 Difference]: Finished difference Result 924 states and 1363 transitions. [2022-11-02 20:37:16,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:37:16,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:37:16,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:16,577 INFO L225 Difference]: With dead ends: 924 [2022-11-02 20:37:16,578 INFO L226 Difference]: Without dead ends: 709 [2022-11-02 20:37:16,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 214 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 20:37:16,579 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 1137 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 1785 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:16,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1137 Valid, 1785 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:37:16,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2022-11-02 20:37:16,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 283. [2022-11-02 20:37:16,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 282 states have (on average 1.4609929078014185) internal successors, (412), 282 states have internal predecessors, (412), 0 states have call successors, (0), 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 20:37:16,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 412 transitions. [2022-11-02 20:37:16,594 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 412 transitions. Word has length 218 [2022-11-02 20:37:16,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:16,594 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 412 transitions. [2022-11-02 20:37:16,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:16,595 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 412 transitions. [2022-11-02 20:37:16,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:37:16,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:16,599 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:37:16,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:16,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:16,815 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:16,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:16,815 INFO L85 PathProgramCache]: Analyzing trace with hash -898429779, now seen corresponding path program 1 times [2022-11-02 20:37:16,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:16,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [761741902] [2022-11-02 20:37:16,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:16,819 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:16,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:16,820 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:16,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-02 20:37:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:18,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:37:18,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:18,506 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:18,507 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:18,507 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:18,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [761741902] [2022-11-02 20:37:18,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [761741902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:18,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:18,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:37:18,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976463043] [2022-11-02 20:37:18,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:18,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:37:18,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:18,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:37:18,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:37:18,510 INFO L87 Difference]: Start difference. First operand 283 states and 412 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:18,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:18,831 INFO L93 Difference]: Finished difference Result 924 states and 1362 transitions. [2022-11-02 20:37:18,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:37:18,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:37:18,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:18,835 INFO L225 Difference]: With dead ends: 924 [2022-11-02 20:37:18,835 INFO L226 Difference]: Without dead ends: 709 [2022-11-02 20:37:18,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 214 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 20:37:18,837 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 1130 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 1761 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:18,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1130 Valid, 1761 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:37:18,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2022-11-02 20:37:18,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 285. [2022-11-02 20:37:18,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 284 states have (on average 1.4577464788732395) internal successors, (414), 284 states have internal predecessors, (414), 0 states have call successors, (0), 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 20:37:18,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 414 transitions. [2022-11-02 20:37:18,848 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 414 transitions. Word has length 218 [2022-11-02 20:37:18,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:18,849 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 414 transitions. [2022-11-02 20:37:18,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:18,849 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 414 transitions. [2022-11-02 20:37:18,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:37:18,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:18,853 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:37:18,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:19,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:19,067 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:19,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:19,067 INFO L85 PathProgramCache]: Analyzing trace with hash -512567377, now seen corresponding path program 1 times [2022-11-02 20:37:19,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:19,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863528027] [2022-11-02 20:37:19,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:19,070 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:19,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:19,077 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:19,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-02 20:37:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:20,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:37:20,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:20,706 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:20,707 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:20,707 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:20,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863528027] [2022-11-02 20:37:20,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [863528027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:20,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:20,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:37:20,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513334251] [2022-11-02 20:37:20,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:20,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:37:20,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:20,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:37:20,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:37:20,710 INFO L87 Difference]: Start difference. First operand 285 states and 414 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:21,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:21,337 INFO L93 Difference]: Finished difference Result 716 states and 1053 transitions. [2022-11-02 20:37:21,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:37:21,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:37:21,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:21,343 INFO L225 Difference]: With dead ends: 716 [2022-11-02 20:37:21,343 INFO L226 Difference]: Without dead ends: 501 [2022-11-02 20:37:21,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 214 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 20:37:21,345 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 827 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:21,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 1213 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 20:37:21,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-11-02 20:37:21,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 287. [2022-11-02 20:37:21,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 286 states have (on average 1.4545454545454546) internal successors, (416), 286 states have internal predecessors, (416), 0 states have call successors, (0), 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 20:37:21,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 416 transitions. [2022-11-02 20:37:21,360 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 416 transitions. Word has length 218 [2022-11-02 20:37:21,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:21,361 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 416 transitions. [2022-11-02 20:37:21,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:21,361 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 416 transitions. [2022-11-02 20:37:21,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:37:21,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:21,366 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:37:21,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:21,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:21,590 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:21,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:21,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1851274285, now seen corresponding path program 1 times [2022-11-02 20:37:21,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:21,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347974025] [2022-11-02 20:37:21,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:21,593 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:21,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:21,595 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:21,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-02 20:37:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:22,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:37:22,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:23,165 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:23,165 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:23,166 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:23,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347974025] [2022-11-02 20:37:23,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1347974025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:23,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:23,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:37:23,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250112831] [2022-11-02 20:37:23,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:23,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:37:23,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:23,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:37:23,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:37:23,169 INFO L87 Difference]: Start difference. First operand 287 states and 416 transitions. Second operand has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 7 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:23,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:23,630 INFO L93 Difference]: Finished difference Result 900 states and 1323 transitions. [2022-11-02 20:37:23,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:37:23,631 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 7 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:37:23,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:23,634 INFO L225 Difference]: With dead ends: 900 [2022-11-02 20:37:23,634 INFO L226 Difference]: Without dead ends: 685 [2022-11-02 20:37:23,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:37:23,635 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 767 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 2523 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:23,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 2523 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 20 Unchecked, 0.4s Time] [2022-11-02 20:37:23,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2022-11-02 20:37:23,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 349. [2022-11-02 20:37:23,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 348 states have (on average 1.4482758620689655) internal successors, (504), 348 states have internal predecessors, (504), 0 states have call successors, (0), 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 20:37:23,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 504 transitions. [2022-11-02 20:37:23,649 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 504 transitions. Word has length 218 [2022-11-02 20:37:23,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:23,649 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 504 transitions. [2022-11-02 20:37:23,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 7 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:23,650 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 504 transitions. [2022-11-02 20:37:23,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:37:23,653 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:23,653 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:37:23,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:23,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:23,866 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:23,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:23,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1044739409, now seen corresponding path program 1 times [2022-11-02 20:37:23,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:23,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210870305] [2022-11-02 20:37:23,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:23,869 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:23,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:23,870 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:23,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-02 20:37:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:25,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:37:25,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:25,591 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:25,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:25,591 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:25,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [210870305] [2022-11-02 20:37:25,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [210870305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:25,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:25,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:37:25,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199318250] [2022-11-02 20:37:25,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:25,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:37:25,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:25,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:37:25,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:37:25,594 INFO L87 Difference]: Start difference. First operand 349 states and 504 transitions. Second operand has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:25,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:25,833 INFO L93 Difference]: Finished difference Result 911 states and 1339 transitions. [2022-11-02 20:37:25,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:37:25,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:37:25,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:25,838 INFO L225 Difference]: With dead ends: 911 [2022-11-02 20:37:25,838 INFO L226 Difference]: Without dead ends: 696 [2022-11-02 20:37:25,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 215 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 20:37:25,840 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 686 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:25,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 1185 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:37:25,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-11-02 20:37:25,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 365. [2022-11-02 20:37:25,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 364 states have (on average 1.4478021978021978) internal successors, (527), 364 states have internal predecessors, (527), 0 states have call successors, (0), 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 20:37:25,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 527 transitions. [2022-11-02 20:37:25,852 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 527 transitions. Word has length 218 [2022-11-02 20:37:25,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:25,852 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 527 transitions. [2022-11-02 20:37:25,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:25,853 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 527 transitions. [2022-11-02 20:37:25,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:37:25,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:25,856 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:37:25,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:26,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:26,070 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:26,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:26,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1589611983, now seen corresponding path program 1 times [2022-11-02 20:37:26,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:26,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [933945134] [2022-11-02 20:37:26,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:26,073 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:26,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:26,074 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:26,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-02 20:37:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:27,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:37:27,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:27,721 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:27,721 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:27,721 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:27,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [933945134] [2022-11-02 20:37:27,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [933945134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:27,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:27,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:37:27,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721151099] [2022-11-02 20:37:27,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:27,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:37:27,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:27,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:37:27,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:37:27,724 INFO L87 Difference]: Start difference. First operand 365 states and 527 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:28,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:28,003 INFO L93 Difference]: Finished difference Result 1008 states and 1480 transitions. [2022-11-02 20:37:28,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:37:28,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:37:28,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:28,007 INFO L225 Difference]: With dead ends: 1008 [2022-11-02 20:37:28,007 INFO L226 Difference]: Without dead ends: 793 [2022-11-02 20:37:28,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 214 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 20:37:28,010 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 1111 mSDsluCounter, 1364 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:28,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 1780 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:37:28,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2022-11-02 20:37:28,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 367. [2022-11-02 20:37:28,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 366 states have (on average 1.4453551912568305) internal successors, (529), 366 states have internal predecessors, (529), 0 states have call successors, (0), 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 20:37:28,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 529 transitions. [2022-11-02 20:37:28,024 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 529 transitions. Word has length 218 [2022-11-02 20:37:28,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:28,024 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 529 transitions. [2022-11-02 20:37:28,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:28,025 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 529 transitions. [2022-11-02 20:37:28,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:37:28,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:28,028 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:37:28,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:28,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:28,248 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:28,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:28,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1757303347, now seen corresponding path program 1 times [2022-11-02 20:37:28,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:28,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1520410182] [2022-11-02 20:37:28,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:28,252 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:28,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:28,253 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:28,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-02 20:37:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:29,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:37:29,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:29,865 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:29,866 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:29,866 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:29,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1520410182] [2022-11-02 20:37:29,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1520410182] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:29,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:29,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:37:29,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041968121] [2022-11-02 20:37:29,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:29,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:37:29,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:29,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:37:29,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:37:29,869 INFO L87 Difference]: Start difference. First operand 367 states and 529 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:30,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:30,166 INFO L93 Difference]: Finished difference Result 1008 states and 1479 transitions. [2022-11-02 20:37:30,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:37:30,166 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:37:30,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:30,170 INFO L225 Difference]: With dead ends: 1008 [2022-11-02 20:37:30,170 INFO L226 Difference]: Without dead ends: 793 [2022-11-02 20:37:30,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 214 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 20:37:30,171 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 1104 mSDsluCounter, 1343 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:30,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1104 Valid, 1756 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:37:30,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2022-11-02 20:37:30,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 369. [2022-11-02 20:37:30,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 368 states have (on average 1.4429347826086956) internal successors, (531), 368 states have internal predecessors, (531), 0 states have call successors, (0), 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 20:37:30,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 531 transitions. [2022-11-02 20:37:30,185 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 531 transitions. Word has length 218 [2022-11-02 20:37:30,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:30,185 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 531 transitions. [2022-11-02 20:37:30,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:30,186 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 531 transitions. [2022-11-02 20:37:30,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:37:30,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:30,188 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:37:30,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:30,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:30,410 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:30,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:30,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1322797749, now seen corresponding path program 1 times [2022-11-02 20:37:30,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:30,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1062524116] [2022-11-02 20:37:30,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:30,413 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:30,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:30,414 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:30,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-02 20:37:31,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:31,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:37:31,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:32,101 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:32,101 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:32,101 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:32,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1062524116] [2022-11-02 20:37:32,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1062524116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:32,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:32,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:37:32,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209979971] [2022-11-02 20:37:32,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:32,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:37:32,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:32,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:37:32,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:37:32,104 INFO L87 Difference]: Start difference. First operand 369 states and 531 transitions. Second operand has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:32,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:32,346 INFO L93 Difference]: Finished difference Result 911 states and 1336 transitions. [2022-11-02 20:37:32,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:37:32,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:37:32,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:32,351 INFO L225 Difference]: With dead ends: 911 [2022-11-02 20:37:32,351 INFO L226 Difference]: Without dead ends: 696 [2022-11-02 20:37:32,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 215 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 20:37:32,353 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 628 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:32,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 1182 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:37:32,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-11-02 20:37:32,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 387. [2022-11-02 20:37:32,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 386 states have (on average 1.4430051813471503) internal successors, (557), 386 states have internal predecessors, (557), 0 states have call successors, (0), 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 20:37:32,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 557 transitions. [2022-11-02 20:37:32,369 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 557 transitions. Word has length 218 [2022-11-02 20:37:32,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:32,370 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 557 transitions. [2022-11-02 20:37:32,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:32,371 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 557 transitions. [2022-11-02 20:37:32,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:37:32,372 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:32,372 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:37:32,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:32,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:32,586 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:32,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:32,587 INFO L85 PathProgramCache]: Analyzing trace with hash 284213175, now seen corresponding path program 1 times [2022-11-02 20:37:32,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:32,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2026116414] [2022-11-02 20:37:32,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:32,589 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:32,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:32,590 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:32,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-02 20:37:33,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:33,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:37:33,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:34,265 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:34,265 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:34,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:34,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2026116414] [2022-11-02 20:37:34,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2026116414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:34,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:34,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:37:34,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696209745] [2022-11-02 20:37:34,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:34,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:37:34,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:34,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:37:34,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:37:34,268 INFO L87 Difference]: Start difference. First operand 387 states and 557 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:34,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:34,586 INFO L93 Difference]: Finished difference Result 1030 states and 1510 transitions. [2022-11-02 20:37:34,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:37:34,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:37:34,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:34,590 INFO L225 Difference]: With dead ends: 1030 [2022-11-02 20:37:34,590 INFO L226 Difference]: Without dead ends: 815 [2022-11-02 20:37:34,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 214 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 20:37:34,592 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 1086 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:34,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1086 Valid, 1776 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:37:34,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2022-11-02 20:37:34,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 389. [2022-11-02 20:37:34,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 388 states have (on average 1.440721649484536) internal successors, (559), 388 states have internal predecessors, (559), 0 states have call successors, (0), 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 20:37:34,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 559 transitions. [2022-11-02 20:37:34,611 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 559 transitions. Word has length 218 [2022-11-02 20:37:34,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:34,612 INFO L495 AbstractCegarLoop]: Abstraction has 389 states and 559 transitions. [2022-11-02 20:37:34,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:34,612 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 559 transitions. [2022-11-02 20:37:34,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:37:34,615 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:34,615 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:37:34,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:34,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:34,838 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:34,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:34,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1857647303, now seen corresponding path program 1 times [2022-11-02 20:37:34,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:34,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730613896] [2022-11-02 20:37:34,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:34,843 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:34,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:34,844 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:34,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-02 20:37:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:36,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:37:36,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:36,510 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:36,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:36,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:36,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730613896] [2022-11-02 20:37:36,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [730613896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:36,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:36,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:37:36,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751931165] [2022-11-02 20:37:36,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:36,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:37:36,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:36,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:37:36,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:37:36,514 INFO L87 Difference]: Start difference. First operand 389 states and 559 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:36,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:36,809 INFO L93 Difference]: Finished difference Result 1030 states and 1509 transitions. [2022-11-02 20:37:36,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:37:36,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:37:36,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:36,812 INFO L225 Difference]: With dead ends: 1030 [2022-11-02 20:37:36,813 INFO L226 Difference]: Without dead ends: 815 [2022-11-02 20:37:36,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 214 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 20:37:36,814 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 1079 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:36,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 1752 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:37:36,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2022-11-02 20:37:36,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 391. [2022-11-02 20:37:36,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 390 states have (on average 1.4384615384615385) internal successors, (561), 390 states have internal predecessors, (561), 0 states have call successors, (0), 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 20:37:36,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 561 transitions. [2022-11-02 20:37:36,828 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 561 transitions. Word has length 218 [2022-11-02 20:37:36,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:36,829 INFO L495 AbstractCegarLoop]: Abstraction has 391 states and 561 transitions. [2022-11-02 20:37:36,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:36,829 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 561 transitions. [2022-11-02 20:37:36,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:37:36,831 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:36,831 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:37:36,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:37,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:37,047 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:37,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:37,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1739205829, now seen corresponding path program 1 times [2022-11-02 20:37:37,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:37,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [709518867] [2022-11-02 20:37:37,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:37,052 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:37,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:37,053 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:37,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-02 20:37:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:38,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:37:38,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:38,898 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:38,898 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:38,899 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:38,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [709518867] [2022-11-02 20:37:38,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [709518867] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:38,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:38,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:37:38,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134116288] [2022-11-02 20:37:38,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:38,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:37:38,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:38,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:37:38,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:37:38,901 INFO L87 Difference]: Start difference. First operand 391 states and 561 transitions. Second operand has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 7 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:39,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:39,161 INFO L93 Difference]: Finished difference Result 760 states and 1096 transitions. [2022-11-02 20:37:39,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:37:39,163 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 7 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:37:39,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:39,165 INFO L225 Difference]: With dead ends: 760 [2022-11-02 20:37:39,165 INFO L226 Difference]: Without dead ends: 545 [2022-11-02 20:37:39,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:37:39,166 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 177 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:39,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 1355 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 17 Unchecked, 0.2s Time] [2022-11-02 20:37:39,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2022-11-02 20:37:39,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2022-11-02 20:37:39,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 544 states have (on average 1.4264705882352942) internal successors, (776), 544 states have internal predecessors, (776), 0 states have call successors, (0), 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 20:37:39,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 776 transitions. [2022-11-02 20:37:39,178 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 776 transitions. Word has length 218 [2022-11-02 20:37:39,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:39,179 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 776 transitions. [2022-11-02 20:37:39,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 7 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:39,179 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 776 transitions. [2022-11-02 20:37:39,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:37:39,181 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:39,181 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:37:39,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:39,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:39,394 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:39,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:39,395 INFO L85 PathProgramCache]: Analyzing trace with hash -432063431, now seen corresponding path program 1 times [2022-11-02 20:37:39,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:39,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1548864148] [2022-11-02 20:37:39,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:39,397 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:39,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:39,398 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:39,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-02 20:37:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:40,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:37:40,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:41,101 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:41,101 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:41,101 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:41,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1548864148] [2022-11-02 20:37:41,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1548864148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:41,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:41,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:37:41,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814038616] [2022-11-02 20:37:41,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:41,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:37:41,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:41,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:37:41,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:37:41,104 INFO L87 Difference]: Start difference. First operand 545 states and 776 transitions. Second operand has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:41,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:41,298 INFO L93 Difference]: Finished difference Result 1065 states and 1548 transitions. [2022-11-02 20:37:41,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:37:41,301 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:37:41,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:41,304 INFO L225 Difference]: With dead ends: 1065 [2022-11-02 20:37:41,304 INFO L226 Difference]: Without dead ends: 850 [2022-11-02 20:37:41,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 215 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 20:37:41,305 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 570 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:41,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 1179 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:37:41,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2022-11-02 20:37:41,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 563. [2022-11-02 20:37:41,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 562 states have (on average 1.4270462633451957) internal successors, (802), 562 states have internal predecessors, (802), 0 states have call successors, (0), 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 20:37:41,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 802 transitions. [2022-11-02 20:37:41,321 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 802 transitions. Word has length 218 [2022-11-02 20:37:41,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:41,322 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 802 transitions. [2022-11-02 20:37:41,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:41,322 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 802 transitions. [2022-11-02 20:37:41,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:37:41,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:41,324 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:37:41,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:41,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:41,539 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:41,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:41,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1018339653, now seen corresponding path program 1 times [2022-11-02 20:37:41,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:41,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685929008] [2022-11-02 20:37:41,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:41,542 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:41,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:41,544 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:41,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-02 20:37:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:42,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:37:42,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:43,284 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:43,285 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:43,285 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:43,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685929008] [2022-11-02 20:37:43,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685929008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:43,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:43,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:37:43,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597004899] [2022-11-02 20:37:43,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:43,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:37:43,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:43,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:37:43,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:37:43,287 INFO L87 Difference]: Start difference. First operand 563 states and 802 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:43,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:43,538 INFO L93 Difference]: Finished difference Result 1206 states and 1755 transitions. [2022-11-02 20:37:43,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:37:43,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:37:43,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:43,550 INFO L225 Difference]: With dead ends: 1206 [2022-11-02 20:37:43,550 INFO L226 Difference]: Without dead ends: 991 [2022-11-02 20:37:43,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 214 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 20:37:43,552 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 1061 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:43,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1061 Valid, 1772 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:37:43,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2022-11-02 20:37:43,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 565. [2022-11-02 20:37:43,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 564 states have (on average 1.425531914893617) internal successors, (804), 564 states have internal predecessors, (804), 0 states have call successors, (0), 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 20:37:43,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 804 transitions. [2022-11-02 20:37:43,568 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 804 transitions. Word has length 218 [2022-11-02 20:37:43,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:43,569 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 804 transitions. [2022-11-02 20:37:43,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:43,569 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 804 transitions. [2022-11-02 20:37:43,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:37:43,571 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:43,571 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:37:43,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:43,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:43,786 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:43,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:43,787 INFO L85 PathProgramCache]: Analyzing trace with hash 858143165, now seen corresponding path program 1 times [2022-11-02 20:37:43,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:43,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [191912812] [2022-11-02 20:37:43,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:43,789 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:43,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:43,790 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:43,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-02 20:37:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:44,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:37:44,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:45,768 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:45,768 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:45,769 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:45,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [191912812] [2022-11-02 20:37:45,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [191912812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:45,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:45,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:37:45,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256339406] [2022-11-02 20:37:45,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:45,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:37:45,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:45,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:37:45,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:37:45,772 INFO L87 Difference]: Start difference. First operand 565 states and 804 transitions. Second operand has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 7 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:46,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:46,032 INFO L93 Difference]: Finished difference Result 1080 states and 1540 transitions. [2022-11-02 20:37:46,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:37:46,034 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 7 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:37:46,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:46,037 INFO L225 Difference]: With dead ends: 1080 [2022-11-02 20:37:46,037 INFO L226 Difference]: Without dead ends: 865 [2022-11-02 20:37:46,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:37:46,039 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 222 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 1415 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:46,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 1415 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 17 Unchecked, 0.2s Time] [2022-11-02 20:37:46,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2022-11-02 20:37:46,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2022-11-02 20:37:46,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 864 states have (on average 1.412037037037037) internal successors, (1220), 864 states have internal predecessors, (1220), 0 states have call successors, (0), 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 20:37:46,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1220 transitions. [2022-11-02 20:37:46,056 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1220 transitions. Word has length 218 [2022-11-02 20:37:46,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:46,057 INFO L495 AbstractCegarLoop]: Abstraction has 865 states and 1220 transitions. [2022-11-02 20:37:46,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 7 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:46,057 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1220 transitions. [2022-11-02 20:37:46,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:37:46,059 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:46,059 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:37:46,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:46,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:46,282 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:46,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:46,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1350769339, now seen corresponding path program 1 times [2022-11-02 20:37:46,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:46,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1841782574] [2022-11-02 20:37:46,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:46,285 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:46,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:46,285 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:46,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-02 20:37:47,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:47,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:37:47,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:48,113 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:48,113 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:48,113 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:48,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1841782574] [2022-11-02 20:37:48,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1841782574] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:48,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:48,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:37:48,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605377082] [2022-11-02 20:37:48,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:48,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:37:48,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:48,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:37:48,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:37:48,116 INFO L87 Difference]: Start difference. First operand 865 states and 1220 transitions. Second operand has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:48,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:48,303 INFO L93 Difference]: Finished difference Result 1365 states and 1962 transitions. [2022-11-02 20:37:48,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:37:48,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:37:48,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:48,310 INFO L225 Difference]: With dead ends: 1365 [2022-11-02 20:37:48,310 INFO L226 Difference]: Without dead ends: 1150 [2022-11-02 20:37:48,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 215 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 20:37:48,311 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 513 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:48,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 1177 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:37:48,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2022-11-02 20:37:48,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 885. [2022-11-02 20:37:48,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 884 states have (on average 1.41289592760181) internal successors, (1249), 884 states have internal predecessors, (1249), 0 states have call successors, (0), 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 20:37:48,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1249 transitions. [2022-11-02 20:37:48,346 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1249 transitions. Word has length 218 [2022-11-02 20:37:48,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:48,347 INFO L495 AbstractCegarLoop]: Abstraction has 885 states and 1249 transitions. [2022-11-02 20:37:48,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:48,347 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1249 transitions. [2022-11-02 20:37:48,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:37:48,349 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:48,350 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:37:48,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:48,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:48,567 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:48,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:48,568 INFO L85 PathProgramCache]: Analyzing trace with hash -335410499, now seen corresponding path program 1 times [2022-11-02 20:37:48,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:48,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [790687026] [2022-11-02 20:37:48,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:48,572 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:48,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:48,573 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:48,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-02 20:37:49,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:49,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:37:49,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:50,318 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:50,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:50,319 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:50,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [790687026] [2022-11-02 20:37:50,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [790687026] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:50,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:50,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:37:50,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028272109] [2022-11-02 20:37:50,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:50,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:37:50,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:50,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:37:50,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:37:50,321 INFO L87 Difference]: Start difference. First operand 885 states and 1249 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:50,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:50,538 INFO L93 Difference]: Finished difference Result 1528 states and 2202 transitions. [2022-11-02 20:37:50,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:37:50,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:37:50,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:50,543 INFO L225 Difference]: With dead ends: 1528 [2022-11-02 20:37:50,543 INFO L226 Difference]: Without dead ends: 1313 [2022-11-02 20:37:50,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 214 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 20:37:50,545 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 1037 mSDsluCounter, 1262 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 1769 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:50,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 1769 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:37:50,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2022-11-02 20:37:50,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 887. [2022-11-02 20:37:50,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 886 states have (on average 1.4119638826185101) internal successors, (1251), 886 states have internal predecessors, (1251), 0 states have call successors, (0), 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 20:37:50,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1251 transitions. [2022-11-02 20:37:50,566 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1251 transitions. Word has length 218 [2022-11-02 20:37:50,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:50,566 INFO L495 AbstractCegarLoop]: Abstraction has 887 states and 1251 transitions. [2022-11-02 20:37:50,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:50,567 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1251 transitions. [2022-11-02 20:37:50,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:37:50,569 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:50,569 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:37:50,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:50,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:50,794 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:50,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:50,795 INFO L85 PathProgramCache]: Analyzing trace with hash -752807105, now seen corresponding path program 1 times [2022-11-02 20:37:50,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:50,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [711076442] [2022-11-02 20:37:50,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:50,797 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:50,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:50,797 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:50,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-02 20:37:51,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:37:51,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:52,521 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:52,521 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:52,521 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:52,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [711076442] [2022-11-02 20:37:52,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [711076442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:52,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:52,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:37:52,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120812010] [2022-11-02 20:37:52,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:52,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:37:52,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:52,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:37:52,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:37:52,523 INFO L87 Difference]: Start difference. First operand 887 states and 1251 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:52,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:52,770 INFO L93 Difference]: Finished difference Result 1528 states and 2201 transitions. [2022-11-02 20:37:52,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:37:52,770 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:37:52,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:52,775 INFO L225 Difference]: With dead ends: 1528 [2022-11-02 20:37:52,775 INFO L226 Difference]: Without dead ends: 1313 [2022-11-02 20:37:52,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 214 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 20:37:52,776 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 1030 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 1745 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:52,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1030 Valid, 1745 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:37:52,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2022-11-02 20:37:52,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 889. [2022-11-02 20:37:52,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 888 states have (on average 1.4110360360360361) internal successors, (1253), 888 states have internal predecessors, (1253), 0 states have call successors, (0), 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 20:37:52,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1253 transitions. [2022-11-02 20:37:52,794 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1253 transitions. Word has length 218 [2022-11-02 20:37:52,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:52,795 INFO L495 AbstractCegarLoop]: Abstraction has 889 states and 1253 transitions. [2022-11-02 20:37:52,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:52,795 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1253 transitions. [2022-11-02 20:37:52,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:37:52,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:52,798 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:37:52,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (25)] Ended with exit code 0 [2022-11-02 20:37:53,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:53,018 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:53,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:53,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1208767553, now seen corresponding path program 1 times [2022-11-02 20:37:53,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:53,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [477904370] [2022-11-02 20:37:53,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:53,021 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:53,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:53,022 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:53,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-02 20:37:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:54,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:37:54,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:54,571 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:54,571 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:54,571 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:54,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [477904370] [2022-11-02 20:37:54,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [477904370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:54,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:54,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:37:54,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628932006] [2022-11-02 20:37:54,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:54,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:37:54,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:54,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:37:54,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:37:54,573 INFO L87 Difference]: Start difference. First operand 889 states and 1253 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:54,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:54,817 INFO L93 Difference]: Finished difference Result 1440 states and 2068 transitions. [2022-11-02 20:37:54,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:37:54,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:37:54,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:54,821 INFO L225 Difference]: With dead ends: 1440 [2022-11-02 20:37:54,821 INFO L226 Difference]: Without dead ends: 1225 [2022-11-02 20:37:54,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 214 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 20:37:54,823 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 864 mSDsluCounter, 1107 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:54,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [864 Valid, 1629 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:37:54,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2022-11-02 20:37:54,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 897. [2022-11-02 20:37:54,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 896 states have (on average 1.4107142857142858) internal successors, (1264), 896 states have internal predecessors, (1264), 0 states have call successors, (0), 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 20:37:54,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1264 transitions. [2022-11-02 20:37:54,850 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1264 transitions. Word has length 218 [2022-11-02 20:37:54,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:54,852 INFO L495 AbstractCegarLoop]: Abstraction has 897 states and 1264 transitions. [2022-11-02 20:37:54,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:54,853 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1264 transitions. [2022-11-02 20:37:54,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:37:54,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:54,856 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:37:54,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (26)] Ended with exit code 0 [2022-11-02 20:37:55,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:55,078 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:55,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:55,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1652668227, now seen corresponding path program 1 times [2022-11-02 20:37:55,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:55,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851652011] [2022-11-02 20:37:55,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:55,081 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:55,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:55,082 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:55,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-02 20:37:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:56,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:37:56,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:56,615 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:56,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:56,615 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:56,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [851652011] [2022-11-02 20:37:56,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [851652011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:56,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:56,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:37:56,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983495194] [2022-11-02 20:37:56,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:56,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:37:56,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:56,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:37:56,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:37:56,618 INFO L87 Difference]: Start difference. First operand 897 states and 1264 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:56,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:56,879 INFO L93 Difference]: Finished difference Result 1440 states and 2067 transitions. [2022-11-02 20:37:56,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:37:56,879 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:37:56,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:56,882 INFO L225 Difference]: With dead ends: 1440 [2022-11-02 20:37:56,882 INFO L226 Difference]: Without dead ends: 1225 [2022-11-02 20:37:56,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 214 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 20:37:56,883 INFO L413 NwaCegarLoop]: 520 mSDtfsCounter, 852 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:56,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 1597 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:37:56,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2022-11-02 20:37:56,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 901. [2022-11-02 20:37:56,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 900 states have (on average 1.41) internal successors, (1269), 900 states have internal predecessors, (1269), 0 states have call successors, (0), 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 20:37:56,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1269 transitions. [2022-11-02 20:37:56,903 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1269 transitions. Word has length 218 [2022-11-02 20:37:56,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:56,904 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1269 transitions. [2022-11-02 20:37:56,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:56,904 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1269 transitions. [2022-11-02 20:37:56,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:37:56,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:56,907 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:37:56,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:57,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:57,122 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:57,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:57,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1637149509, now seen corresponding path program 1 times [2022-11-02 20:37:57,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:57,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92140612] [2022-11-02 20:37:57,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:57,125 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:57,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:57,127 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:57,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-02 20:37:58,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:58,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:37:58,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:58,734 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:58,734 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:37:58,734 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:37:58,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92140612] [2022-11-02 20:37:58,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [92140612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:58,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:58,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:37:58,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443773856] [2022-11-02 20:37:58,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:58,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:37:58,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:37:58,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:37:58,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:37:58,736 INFO L87 Difference]: Start difference. First operand 901 states and 1269 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:58,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:58,954 INFO L93 Difference]: Finished difference Result 1462 states and 2099 transitions. [2022-11-02 20:37:58,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:37:58,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:37:58,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:58,959 INFO L225 Difference]: With dead ends: 1462 [2022-11-02 20:37:58,959 INFO L226 Difference]: Without dead ends: 1247 [2022-11-02 20:37:58,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 214 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 20:37:58,960 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 877 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:58,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 1647 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:37:58,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2022-11-02 20:37:58,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 905. [2022-11-02 20:37:58,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 904 states have (on average 1.4092920353982301) internal successors, (1274), 904 states have internal predecessors, (1274), 0 states have call successors, (0), 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 20:37:58,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1274 transitions. [2022-11-02 20:37:58,977 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1274 transitions. Word has length 218 [2022-11-02 20:37:58,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:58,977 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1274 transitions. [2022-11-02 20:37:58,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:37:58,978 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1274 transitions. [2022-11-02 20:37:58,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:37:58,980 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:58,980 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:37:59,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (28)] Ended with exit code 0 [2022-11-02 20:37:59,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:37:59,202 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:59,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:59,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1764331449, now seen corresponding path program 1 times [2022-11-02 20:37:59,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:37:59,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1769752975] [2022-11-02 20:37:59,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:59,206 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:37:59,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:37:59,208 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:37:59,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-02 20:38:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:00,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:38:00,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:00,873 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:00,873 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:38:00,873 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:38:00,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1769752975] [2022-11-02 20:38:00,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1769752975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:00,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:00,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:38:00,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791151705] [2022-11-02 20:38:00,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:00,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:38:00,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:38:00,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:38:00,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:38:00,876 INFO L87 Difference]: Start difference. First operand 905 states and 1274 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:38:01,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:01,132 INFO L93 Difference]: Finished difference Result 1462 states and 2098 transitions. [2022-11-02 20:38:01,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:38:01,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:38:01,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:01,138 INFO L225 Difference]: With dead ends: 1462 [2022-11-02 20:38:01,138 INFO L226 Difference]: Without dead ends: 1247 [2022-11-02 20:38:01,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 214 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 20:38:01,140 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 870 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:01,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 1638 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:38:01,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2022-11-02 20:38:01,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 907. [2022-11-02 20:38:01,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 906 states have (on average 1.4083885209713025) internal successors, (1276), 906 states have internal predecessors, (1276), 0 states have call successors, (0), 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 20:38:01,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1276 transitions. [2022-11-02 20:38:01,163 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1276 transitions. Word has length 218 [2022-11-02 20:38:01,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:01,164 INFO L495 AbstractCegarLoop]: Abstraction has 907 states and 1276 transitions. [2022-11-02 20:38:01,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:38:01,165 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1276 transitions. [2022-11-02 20:38:01,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:38:01,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:01,167 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:38:01,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-11-02 20:38:01,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:38:01,382 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:01,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:01,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1633242569, now seen corresponding path program 1 times [2022-11-02 20:38:01,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:38:01,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [515735197] [2022-11-02 20:38:01,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:01,385 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:38:01,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:38:01,386 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:38:01,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-02 20:38:02,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:02,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:38:02,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:03,021 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:03,021 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:38:03,021 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:38:03,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [515735197] [2022-11-02 20:38:03,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [515735197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:03,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:03,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:38:03,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632575192] [2022-11-02 20:38:03,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:03,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:38:03,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:38:03,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:38:03,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:38:03,024 INFO L87 Difference]: Start difference. First operand 907 states and 1276 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:38:03,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:03,324 INFO L93 Difference]: Finished difference Result 1462 states and 2097 transitions. [2022-11-02 20:38:03,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:38:03,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:38:03,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:03,338 INFO L225 Difference]: With dead ends: 1462 [2022-11-02 20:38:03,338 INFO L226 Difference]: Without dead ends: 1247 [2022-11-02 20:38:03,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 214 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 20:38:03,340 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 863 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 1614 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:03,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 1614 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:38:03,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2022-11-02 20:38:03,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 909. [2022-11-02 20:38:03,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 908 states have (on average 1.407488986784141) internal successors, (1278), 908 states have internal predecessors, (1278), 0 states have call successors, (0), 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 20:38:03,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1278 transitions. [2022-11-02 20:38:03,371 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1278 transitions. Word has length 218 [2022-11-02 20:38:03,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:03,371 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1278 transitions. [2022-11-02 20:38:03,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:38:03,373 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1278 transitions. [2022-11-02 20:38:03,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:38:03,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:03,375 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:38:03,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-11-02 20:38:03,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:38:03,590 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:03,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:03,591 INFO L85 PathProgramCache]: Analyzing trace with hash 2056889291, now seen corresponding path program 1 times [2022-11-02 20:38:03,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:38:03,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1914370896] [2022-11-02 20:38:03,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:03,593 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:38:03,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:38:03,594 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:38:03,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-02 20:38:04,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:04,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:38:04,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:05,335 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:05,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:38:05,335 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:38:05,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1914370896] [2022-11-02 20:38:05,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1914370896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:05,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:05,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:38:05,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613079850] [2022-11-02 20:38:05,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:05,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:38:05,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:38:05,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:38:05,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:38:05,338 INFO L87 Difference]: Start difference. First operand 909 states and 1278 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:38:05,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:05,638 INFO L93 Difference]: Finished difference Result 1484 states and 2129 transitions. [2022-11-02 20:38:05,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:38:05,638 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:38:05,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:05,642 INFO L225 Difference]: With dead ends: 1484 [2022-11-02 20:38:05,642 INFO L226 Difference]: Without dead ends: 1269 [2022-11-02 20:38:05,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 214 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 20:38:05,644 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 882 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:05,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 1656 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:38:05,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2022-11-02 20:38:05,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 915. [2022-11-02 20:38:05,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 914 states have (on average 1.4070021881838075) internal successors, (1286), 914 states have internal predecessors, (1286), 0 states have call successors, (0), 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 20:38:05,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1286 transitions. [2022-11-02 20:38:05,667 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1286 transitions. Word has length 218 [2022-11-02 20:38:05,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:05,668 INFO L495 AbstractCegarLoop]: Abstraction has 915 states and 1286 transitions. [2022-11-02 20:38:05,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:38:05,668 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1286 transitions. [2022-11-02 20:38:05,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:38:05,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:05,671 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:38:05,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-11-02 20:38:05,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:38:05,886 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:05,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:05,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1212883789, now seen corresponding path program 1 times [2022-11-02 20:38:05,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:38:05,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772919413] [2022-11-02 20:38:05,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:05,891 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:38:05,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:38:05,893 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:38:05,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-02 20:38:06,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:07,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:38:07,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:07,648 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:07,648 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:38:07,648 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:38:07,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [772919413] [2022-11-02 20:38:07,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [772919413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:07,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:07,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:38:07,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476402537] [2022-11-02 20:38:07,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:07,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:38:07,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:38:07,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:38:07,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:38:07,651 INFO L87 Difference]: Start difference. First operand 915 states and 1286 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:38:07,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:07,930 INFO L93 Difference]: Finished difference Result 1484 states and 2128 transitions. [2022-11-02 20:38:07,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:38:07,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:38:07,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:07,934 INFO L225 Difference]: With dead ends: 1484 [2022-11-02 20:38:07,934 INFO L226 Difference]: Without dead ends: 1269 [2022-11-02 20:38:07,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 214 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 20:38:07,935 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 875 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:07,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [875 Valid, 1632 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:38:07,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2022-11-02 20:38:07,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 917. [2022-11-02 20:38:07,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 916 states have (on average 1.4061135371179039) internal successors, (1288), 916 states have internal predecessors, (1288), 0 states have call successors, (0), 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 20:38:07,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1288 transitions. [2022-11-02 20:38:07,956 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1288 transitions. Word has length 218 [2022-11-02 20:38:07,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:07,956 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1288 transitions. [2022-11-02 20:38:07,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:38:07,957 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1288 transitions. [2022-11-02 20:38:07,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:38:07,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:07,959 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:38:07,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-11-02 20:38:08,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:38:08,174 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:08,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:08,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1140497231, now seen corresponding path program 1 times [2022-11-02 20:38:08,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:38:08,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932239410] [2022-11-02 20:38:08,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:08,177 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:38:08,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:38:08,178 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:38:08,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-02 20:38:09,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:09,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:38:09,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:10,042 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:10,042 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:38:10,042 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:38:10,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932239410] [2022-11-02 20:38:10,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1932239410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:10,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:10,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:38:10,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112051096] [2022-11-02 20:38:10,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:10,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:38:10,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:38:10,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:38:10,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:38:10,045 INFO L87 Difference]: Start difference. First operand 917 states and 1288 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:38:10,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:10,286 INFO L93 Difference]: Finished difference Result 1506 states and 2160 transitions. [2022-11-02 20:38:10,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:38:10,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:38:10,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:10,288 INFO L225 Difference]: With dead ends: 1506 [2022-11-02 20:38:10,288 INFO L226 Difference]: Without dead ends: 1291 [2022-11-02 20:38:10,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 214 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 20:38:10,289 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 899 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 1682 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:10,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [899 Valid, 1682 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:38:10,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2022-11-02 20:38:10,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 921. [2022-11-02 20:38:10,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 920 states have (on average 1.4054347826086957) internal successors, (1293), 920 states have internal predecessors, (1293), 0 states have call successors, (0), 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 20:38:10,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1293 transitions. [2022-11-02 20:38:10,307 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1293 transitions. Word has length 218 [2022-11-02 20:38:10,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:10,308 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1293 transitions. [2022-11-02 20:38:10,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:38:10,309 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1293 transitions. [2022-11-02 20:38:10,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:38:10,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:10,311 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:38:10,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2022-11-02 20:38:10,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:38:10,534 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:10,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:10,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1768266671, now seen corresponding path program 1 times [2022-11-02 20:38:10,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:38:10,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18107693] [2022-11-02 20:38:10,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:10,537 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:38:10,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:38:10,538 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:38:10,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-11-02 20:38:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:11,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:38:11,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:12,260 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:12,261 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:38:12,261 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:38:12,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [18107693] [2022-11-02 20:38:12,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [18107693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:12,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:12,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:38:12,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916705908] [2022-11-02 20:38:12,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:12,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:38:12,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:38:12,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:38:12,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:38:12,263 INFO L87 Difference]: Start difference. First operand 921 states and 1293 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:38:12,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:12,503 INFO L93 Difference]: Finished difference Result 1506 states and 2159 transitions. [2022-11-02 20:38:12,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:38:12,504 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:38:12,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:12,506 INFO L225 Difference]: With dead ends: 1506 [2022-11-02 20:38:12,506 INFO L226 Difference]: Without dead ends: 1291 [2022-11-02 20:38:12,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 214 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 20:38:12,508 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 892 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:12,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 1673 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:38:12,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2022-11-02 20:38:12,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 923. [2022-11-02 20:38:12,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 922 states have (on average 1.4045553145336225) internal successors, (1295), 922 states have internal predecessors, (1295), 0 states have call successors, (0), 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 20:38:12,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1295 transitions. [2022-11-02 20:38:12,525 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1295 transitions. Word has length 218 [2022-11-02 20:38:12,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:12,526 INFO L495 AbstractCegarLoop]: Abstraction has 923 states and 1295 transitions. [2022-11-02 20:38:12,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:38:12,526 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1295 transitions. [2022-11-02 20:38:12,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:38:12,528 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:12,528 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:38:12,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2022-11-02 20:38:12,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:38:12,742 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:12,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:12,743 INFO L85 PathProgramCache]: Analyzing trace with hash 154961363, now seen corresponding path program 1 times [2022-11-02 20:38:12,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:38:12,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [906594649] [2022-11-02 20:38:12,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:12,745 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:38:12,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:38:12,746 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:38:12,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-11-02 20:38:13,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:13,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:38:13,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:14,552 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:14,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:38:14,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:38:14,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [906594649] [2022-11-02 20:38:14,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [906594649] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:14,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:14,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:38:14,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174666657] [2022-11-02 20:38:14,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:14,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:38:14,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:38:14,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:38:14,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:38:14,554 INFO L87 Difference]: Start difference. First operand 923 states and 1295 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:38:14,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:14,840 INFO L93 Difference]: Finished difference Result 1506 states and 2158 transitions. [2022-11-02 20:38:14,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:38:14,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:38:14,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:14,843 INFO L225 Difference]: With dead ends: 1506 [2022-11-02 20:38:14,843 INFO L226 Difference]: Without dead ends: 1291 [2022-11-02 20:38:14,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 214 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 20:38:14,845 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 885 mSDsluCounter, 1101 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 1649 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:14,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 1649 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:38:14,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2022-11-02 20:38:14,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 925. [2022-11-02 20:38:14,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 924 states have (on average 1.4036796536796536) internal successors, (1297), 924 states have internal predecessors, (1297), 0 states have call successors, (0), 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 20:38:14,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1297 transitions. [2022-11-02 20:38:14,864 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1297 transitions. Word has length 218 [2022-11-02 20:38:14,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:14,864 INFO L495 AbstractCegarLoop]: Abstraction has 925 states and 1297 transitions. [2022-11-02 20:38:14,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:38:14,865 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1297 transitions. [2022-11-02 20:38:14,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:38:14,867 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:14,867 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:38:14,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2022-11-02 20:38:15,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:38:15,090 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:15,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:15,091 INFO L85 PathProgramCache]: Analyzing trace with hash 295509973, now seen corresponding path program 1 times [2022-11-02 20:38:15,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:38:15,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314620623] [2022-11-02 20:38:15,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:15,093 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:38:15,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:38:15,094 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:38:15,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-11-02 20:38:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:16,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:38:16,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:16,979 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:16,980 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:38:16,980 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:38:16,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314620623] [2022-11-02 20:38:16,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [314620623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:16,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:16,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:38:16,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577618706] [2022-11-02 20:38:16,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:16,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:38:16,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:38:16,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:38:16,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:38:16,981 INFO L87 Difference]: Start difference. First operand 925 states and 1297 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:38:17,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:17,206 INFO L93 Difference]: Finished difference Result 1528 states and 2190 transitions. [2022-11-02 20:38:17,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:38:17,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:38:17,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:17,208 INFO L225 Difference]: With dead ends: 1528 [2022-11-02 20:38:17,208 INFO L226 Difference]: Without dead ends: 1313 [2022-11-02 20:38:17,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 214 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 20:38:17,209 INFO L413 NwaCegarLoop]: 560 mSDtfsCounter, 908 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:17,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [908 Valid, 1699 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:38:17,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2022-11-02 20:38:17,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 929. [2022-11-02 20:38:17,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 928 states have (on average 1.4030172413793103) internal successors, (1302), 928 states have internal predecessors, (1302), 0 states have call successors, (0), 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 20:38:17,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1302 transitions. [2022-11-02 20:38:17,224 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1302 transitions. Word has length 218 [2022-11-02 20:38:17,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:17,225 INFO L495 AbstractCegarLoop]: Abstraction has 929 states and 1302 transitions. [2022-11-02 20:38:17,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:38:17,225 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1302 transitions. [2022-11-02 20:38:17,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:38:17,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:17,227 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:38:17,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2022-11-02 20:38:17,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:38:17,456 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:17,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:17,456 INFO L85 PathProgramCache]: Analyzing trace with hash 718211799, now seen corresponding path program 1 times [2022-11-02 20:38:17,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:38:17,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [161796515] [2022-11-02 20:38:17,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:17,459 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:38:17,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:38:17,460 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:38:17,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-11-02 20:38:18,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:18,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:38:18,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:19,281 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:19,281 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:38:19,281 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:38:19,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [161796515] [2022-11-02 20:38:19,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [161796515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:19,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:19,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:38:19,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142200392] [2022-11-02 20:38:19,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:19,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:38:19,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:38:19,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:38:19,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:38:19,284 INFO L87 Difference]: Start difference. First operand 929 states and 1302 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:38:19,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:19,534 INFO L93 Difference]: Finished difference Result 1528 states and 2189 transitions. [2022-11-02 20:38:19,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:38:19,535 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2022-11-02 20:38:19,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:19,536 INFO L225 Difference]: With dead ends: 1528 [2022-11-02 20:38:19,536 INFO L226 Difference]: Without dead ends: 1313 [2022-11-02 20:38:19,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 214 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 20:38:19,538 INFO L413 NwaCegarLoop]: 558 mSDtfsCounter, 896 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:19,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 1667 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:38:19,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2022-11-02 20:38:19,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 933. [2022-11-02 20:38:19,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 932 states have (on average 1.4023605150214593) internal successors, (1307), 932 states have internal predecessors, (1307), 0 states have call successors, (0), 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 20:38:19,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1307 transitions. [2022-11-02 20:38:19,556 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1307 transitions. Word has length 218 [2022-11-02 20:38:19,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:19,556 INFO L495 AbstractCegarLoop]: Abstraction has 933 states and 1307 transitions. [2022-11-02 20:38:19,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 20:38:19,556 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1307 transitions. [2022-11-02 20:38:19,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:38:19,558 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:19,558 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:38:19,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (37)] Ended with exit code 0 [2022-11-02 20:38:19,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:38:19,766 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:19,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:19,767 INFO L85 PathProgramCache]: Analyzing trace with hash -870136103, now seen corresponding path program 1 times [2022-11-02 20:38:19,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:38:19,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1224331848] [2022-11-02 20:38:19,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:19,769 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:38:19,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:38:19,770 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:38:19,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2022-11-02 20:38:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:20,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 20:38:20,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:22,649 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:22,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:38:23,873 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:23,873 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:38:23,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1224331848] [2022-11-02 20:38:23,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1224331848] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:38:23,874 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:38:23,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-11-02 20:38:23,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822219761] [2022-11-02 20:38:23,874 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:38:23,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-02 20:38:23,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:38:23,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-02 20:38:23,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-11-02 20:38:23,876 INFO L87 Difference]: Start difference. First operand 933 states and 1307 transitions. Second operand has 16 states, 16 states have (on average 26.5) internal successors, (424), 16 states have internal predecessors, (424), 0 states have call successors, (0), 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 20:38:24,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:24,342 INFO L93 Difference]: Finished difference Result 1773 states and 2481 transitions. [2022-11-02 20:38:24,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:38:24,343 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 26.5) internal successors, (424), 16 states have internal predecessors, (424), 0 states have call successors, (0), 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 218 [2022-11-02 20:38:24,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:24,344 INFO L225 Difference]: With dead ends: 1773 [2022-11-02 20:38:24,344 INFO L226 Difference]: Without dead ends: 1558 [2022-11-02 20:38:24,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 420 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2022-11-02 20:38:24,345 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 483 mSDsluCounter, 2242 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 2541 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 60 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:24,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 2541 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 60 Unchecked, 0.3s Time] [2022-11-02 20:38:24,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2022-11-02 20:38:24,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1558. [2022-11-02 20:38:24,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 1.3879254977520874) internal successors, (2161), 1557 states have internal predecessors, (2161), 0 states have call successors, (0), 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 20:38:24,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 2161 transitions. [2022-11-02 20:38:24,368 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 2161 transitions. Word has length 218 [2022-11-02 20:38:24,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:24,369 INFO L495 AbstractCegarLoop]: Abstraction has 1558 states and 2161 transitions. [2022-11-02 20:38:24,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 26.5) internal successors, (424), 16 states have internal predecessors, (424), 0 states have call successors, (0), 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 20:38:24,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 2161 transitions. [2022-11-02 20:38:24,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:38:24,372 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:24,372 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:38:24,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2022-11-02 20:38:24,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:38:24,586 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:24,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:24,587 INFO L85 PathProgramCache]: Analyzing trace with hash -611970665, now seen corresponding path program 1 times [2022-11-02 20:38:24,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:38:24,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1878221738] [2022-11-02 20:38:24,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:24,589 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:38:24,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:38:24,590 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:38:24,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2022-11-02 20:38:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:25,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 20:38:25,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:27,248 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:27,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:38:28,251 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:28,251 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:38:28,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1878221738] [2022-11-02 20:38:28,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1878221738] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:38:28,252 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:38:28,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-11-02 20:38:28,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322198832] [2022-11-02 20:38:28,252 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:38:28,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-02 20:38:28,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:38:28,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-02 20:38:28,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-11-02 20:38:28,254 INFO L87 Difference]: Start difference. First operand 1558 states and 2161 transitions. Second operand has 16 states, 16 states have (on average 26.625) internal successors, (426), 16 states have internal predecessors, (426), 0 states have call successors, (0), 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 20:38:28,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:28,615 INFO L93 Difference]: Finished difference Result 2963 states and 4099 transitions. [2022-11-02 20:38:28,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:38:28,615 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 26.625) internal successors, (426), 16 states have internal predecessors, (426), 0 states have call successors, (0), 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 218 [2022-11-02 20:38:28,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:28,622 INFO L225 Difference]: With dead ends: 2963 [2022-11-02 20:38:28,622 INFO L226 Difference]: Without dead ends: 2748 [2022-11-02 20:38:28,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 421 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2022-11-02 20:38:28,624 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 881 mSDsluCounter, 2067 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 2367 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 50 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:28,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 2367 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 50 Unchecked, 0.2s Time] [2022-11-02 20:38:28,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2748 states. [2022-11-02 20:38:28,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2748 to 2748. [2022-11-02 20:38:28,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2748 states, 2747 states have (on average 1.3753185293046961) internal successors, (3778), 2747 states have internal predecessors, (3778), 0 states have call successors, (0), 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 20:38:28,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2748 states to 2748 states and 3778 transitions. [2022-11-02 20:38:28,687 INFO L78 Accepts]: Start accepts. Automaton has 2748 states and 3778 transitions. Word has length 218 [2022-11-02 20:38:28,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:28,688 INFO L495 AbstractCegarLoop]: Abstraction has 2748 states and 3778 transitions. [2022-11-02 20:38:28,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 26.625) internal successors, (426), 16 states have internal predecessors, (426), 0 states have call successors, (0), 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 20:38:28,688 INFO L276 IsEmpty]: Start isEmpty. Operand 2748 states and 3778 transitions. [2022-11-02 20:38:28,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-02 20:38:28,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:28,692 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:38:28,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (39)] Ended with exit code 0 [2022-11-02 20:38:28,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:38:28,906 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:28,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:28,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1004997675, now seen corresponding path program 1 times [2022-11-02 20:38:28,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:38:28,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1734833301] [2022-11-02 20:38:28,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:28,909 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:38:28,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:38:28,909 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:38:28,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef13323-8241-439c-a633-c822496ad316/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process