./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal31.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/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_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal31.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/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_07e96954-b732-422d-8f1c-f004f4779c53/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 eb025466549cbb85a27504c97f7f6398ba5c7185bf33af83df28ae3a7ef31ace --- 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 20:13:35,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:13:35,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:13:35,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:13:35,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:13:35,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:13:35,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:13:35,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:13:35,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:13:35,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:13:35,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:13:35,312 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:13:35,312 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:13:35,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:13:35,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:13:35,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:13:35,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:13:35,321 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:13:35,323 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:13:35,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:13:35,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:13:35,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:13:35,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:13:35,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:13:35,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:13:35,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:13:35,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:13:35,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:13:35,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:13:35,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:13:35,345 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:13:35,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:13:35,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:13:35,348 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:13:35,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:13:35,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:13:35,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:13:35,350 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:13:35,351 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:13:35,351 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:13:35,352 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:13:35,353 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:13:35,373 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:13:35,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:13:35,373 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:13:35,374 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:13:35,374 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:13:35,375 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:13:35,375 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:13:35,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:13:35,376 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:13:35,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:13:35,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:13:35,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:13:35,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:13:35,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:13:35,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:13:35,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:13:35,378 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:13:35,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:13:35,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:13:35,378 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:13:35,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:13:35,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:13:35,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:13:35,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:13:35,379 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:13:35,380 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:13:35,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:13:35,380 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:13:35,380 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:13:35,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:13:35,381 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_07e96954-b732-422d-8f1c-f004f4779c53/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb025466549cbb85a27504c97f7f6398ba5c7185bf33af83df28ae3a7ef31ace [2022-11-02 20:13:35,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:13:35,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:13:35,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:13:35,731 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:13:35,732 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:13:35,733 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal31.c [2022-11-02 20:13:35,803 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/data/3add8ae42/0832b08f463b42ea823e1ba299cbf5c3/FLAG05b34e27e [2022-11-02 20:13:36,779 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:13:36,779 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal31.c [2022-11-02 20:13:36,837 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/data/3add8ae42/0832b08f463b42ea823e1ba299cbf5c3/FLAG05b34e27e [2022-11-02 20:13:37,231 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/data/3add8ae42/0832b08f463b42ea823e1ba299cbf5c3 [2022-11-02 20:13:37,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:13:37,239 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:13:37,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:13:37,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:13:37,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:13:37,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:13:37" (1/1) ... [2022-11-02 20:13:37,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@196490b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:37, skipping insertion in model container [2022-11-02 20:13:37,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:13:37" (1/1) ... [2022-11-02 20:13:37,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:13:37,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:13:37,827 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_07e96954-b732-422d-8f1c-f004f4779c53/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal31.c[1107,1120] [2022-11-02 20:13:39,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:13:39,050 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:13:39,061 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_07e96954-b732-422d-8f1c-f004f4779c53/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal31.c[1107,1120] [2022-11-02 20:13:39,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:13:39,958 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:13:39,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:39 WrapperNode [2022-11-02 20:13:39,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:13:39,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:13:39,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:13:39,963 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:13:39,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:39" (1/1) ... [2022-11-02 20:13:40,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:39" (1/1) ... [2022-11-02 20:13:41,631 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 12337 [2022-11-02 20:13:41,631 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:13:41,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:13:41,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:13:41,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:13:41,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:39" (1/1) ... [2022-11-02 20:13:41,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:39" (1/1) ... [2022-11-02 20:13:42,066 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:39" (1/1) ... [2022-11-02 20:13:42,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:39" (1/1) ... [2022-11-02 20:13:42,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:39" (1/1) ... [2022-11-02 20:13:42,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:39" (1/1) ... [2022-11-02 20:13:42,856 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:39" (1/1) ... [2022-11-02 20:13:42,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:39" (1/1) ... [2022-11-02 20:13:43,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:13:43,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:13:43,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:13:43,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:13:43,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:39" (1/1) ... [2022-11-02 20:13:43,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:13:43,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:13:43,214 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:13:43,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:13:43,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:13:43,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:13:44,914 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:13:44,917 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:15:54,302 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:15:54,322 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:15:54,322 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:15:54,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:15:54 BoogieIcfgContainer [2022-11-02 20:15:54,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:15:54,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:15:54,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:15:54,332 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:15:54,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:13:37" (1/3) ... [2022-11-02 20:15:54,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef47e7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:15:54, skipping insertion in model container [2022-11-02 20:15:54,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:39" (2/3) ... [2022-11-02 20:15:54,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef47e7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:15:54, skipping insertion in model container [2022-11-02 20:15:54,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:15:54" (3/3) ... [2022-11-02 20:15:54,335 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal31.c [2022-11-02 20:15:54,354 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:15:54,354 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:15:54,424 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:15:54,431 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;@19122614, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:15:54,431 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:15:54,440 INFO L276 IsEmpty]: Start isEmpty. Operand has 1017 states, 1015 states have (on average 1.4995073891625617) internal successors, (1522), 1016 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:54,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:15:54,447 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:15:54,447 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:15:54,448 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:15:54,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:54,453 INFO L85 PathProgramCache]: Analyzing trace with hash -332259343, now seen corresponding path program 1 times [2022-11-02 20:15:54,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:54,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904647218] [2022-11-02 20:15:54,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:54,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:54,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:15:55,584 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 20:15:55,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:15:55,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904647218] [2022-11-02 20:15:55,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904647218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:15:55,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:15:55,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:15:55,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377027153] [2022-11-02 20:15:55,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:15:55,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:15:55,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:15:55,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:15:55,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:15:55,632 INFO L87 Difference]: Start difference. First operand has 1017 states, 1015 states have (on average 1.4995073891625617) internal successors, (1522), 1016 states have internal predecessors, (1522), 0 states have call successors, (0), 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 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:57,832 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 20:16:00,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:16:01,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:01,092 INFO L93 Difference]: Finished difference Result 2141 states and 3209 transitions. [2022-11-02 20:16:01,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:16:01,095 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-02 20:16:01,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:16:01,114 INFO L225 Difference]: With dead ends: 2141 [2022-11-02 20:16:01,115 INFO L226 Difference]: Without dead ends: 1126 [2022-11-02 20:16:01,121 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 20:16:01,126 INFO L413 NwaCegarLoop]: 1508 mSDtfsCounter, 329 mSDsluCounter, 3007 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 4515 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:16:01,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 4515 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2022-11-02 20:16:01,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2022-11-02 20:16:01,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1015. [2022-11-02 20:16:01,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 1014 states have (on average 1.4970414201183433) internal successors, (1518), 1014 states have internal predecessors, (1518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:01,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1518 transitions. [2022-11-02 20:16:01,222 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1518 transitions. Word has length 9 [2022-11-02 20:16:01,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:16:01,222 INFO L495 AbstractCegarLoop]: Abstraction has 1015 states and 1518 transitions. [2022-11-02 20:16:01,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:01,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1518 transitions. [2022-11-02 20:16:01,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:16:01,224 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:16:01,224 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:01,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:16:01,225 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:16:01,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:01,225 INFO L85 PathProgramCache]: Analyzing trace with hash -275001041, now seen corresponding path program 1 times [2022-11-02 20:16:01,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:01,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649665143] [2022-11-02 20:16:01,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:01,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:01,766 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 20:16:01,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:01,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649665143] [2022-11-02 20:16:01,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649665143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:01,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:01,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:16:01,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406842750] [2022-11-02 20:16:01,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:01,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:16:01,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:01,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:16:01,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:16:01,782 INFO L87 Difference]: Start difference. First operand 1015 states and 1518 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:03,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:16:05,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:16:07,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:16:09,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:16:11,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:16:11,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:11,418 INFO L93 Difference]: Finished difference Result 2727 states and 4081 transitions. [2022-11-02 20:16:11,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:16:11,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-02 20:16:11,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:16:11,424 INFO L225 Difference]: With dead ends: 2727 [2022-11-02 20:16:11,425 INFO L226 Difference]: Without dead ends: 1716 [2022-11-02 20:16:11,427 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 20:16:11,428 INFO L413 NwaCegarLoop]: 1498 mSDtfsCounter, 2093 mSDsluCounter, 3006 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2093 SdHoareTripleChecker+Valid, 4504 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:16:11,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2093 Valid, 4504 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 2 Unknown, 0 Unchecked, 9.6s Time] [2022-11-02 20:16:11,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2022-11-02 20:16:11,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1017. [2022-11-02 20:16:11,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 1016 states have (on average 1.4960629921259843) internal successors, (1520), 1016 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:11,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1520 transitions. [2022-11-02 20:16:11,471 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1520 transitions. Word has length 9 [2022-11-02 20:16:11,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:16:11,472 INFO L495 AbstractCegarLoop]: Abstraction has 1017 states and 1520 transitions. [2022-11-02 20:16:11,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:11,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1520 transitions. [2022-11-02 20:16:11,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:16:11,473 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:16:11,473 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:11,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:16:11,473 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:16:11,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:11,475 INFO L85 PathProgramCache]: Analyzing trace with hash -274941459, now seen corresponding path program 1 times [2022-11-02 20:16:11,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:11,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782643540] [2022-11-02 20:16:11,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:11,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:11,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:11,970 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:12,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:12,349 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:16:12,349 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:16:12,350 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 20:16:12,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:16:12,358 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-02 20:16:12,362 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:16:12,443 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 20:16:12,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:16:12 BoogieIcfgContainer [2022-11-02 20:16:12,476 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:16:12,477 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:16:12,478 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:16:12,478 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:16:12,478 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:15:54" (3/4) ... [2022-11-02 20:16:12,481 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:16:12,482 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:16:12,482 INFO L158 Benchmark]: Toolchain (without parser) took 155243.23ms. Allocated memory was 104.9MB in the beginning and 4.9GB in the end (delta: 4.8GB). Free memory was 73.8MB in the beginning and 3.5GB in the end (delta: -3.5GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2022-11-02 20:16:12,483 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 104.9MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:16:12,488 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2718.73ms. Allocated memory was 104.9MB in the beginning and 287.3MB in the end (delta: 182.5MB). Free memory was 73.4MB in the beginning and 128.2MB in the end (delta: -54.8MB). Peak memory consumption was 144.2MB. Max. memory is 16.1GB. [2022-11-02 20:16:12,489 INFO L158 Benchmark]: Boogie Procedure Inliner took 1669.32ms. Allocated memory was 287.3MB in the beginning and 595.6MB in the end (delta: 308.3MB). Free memory was 128.2MB in the beginning and 306.5MB in the end (delta: -178.3MB). Peak memory consumption was 127.9MB. Max. memory is 16.1GB. [2022-11-02 20:16:12,489 INFO L158 Benchmark]: Boogie Preprocessor took 1544.89ms. Allocated memory was 595.6MB in the beginning and 1.6GB in the end (delta: 1.0GB). Free memory was 306.5MB in the beginning and 1.3GB in the end (delta: -977.3MB). Peak memory consumption was 84.9MB. Max. memory is 16.1GB. [2022-11-02 20:16:12,490 INFO L158 Benchmark]: RCFGBuilder took 131148.31ms. Allocated memory was 1.6GB in the beginning and 4.9GB in the end (delta: 3.3GB). Free memory was 1.3GB in the beginning and 4.1GB in the end (delta: -2.8GB). Peak memory consumption was 3.0GB. Max. memory is 16.1GB. [2022-11-02 20:16:12,490 INFO L158 Benchmark]: TraceAbstraction took 18148.57ms. Allocated memory is still 4.9GB. Free memory was 4.1GB in the beginning and 3.5GB in the end (delta: 540.0MB). Peak memory consumption was 539.0MB. Max. memory is 16.1GB. [2022-11-02 20:16:12,490 INFO L158 Benchmark]: Witness Printer took 4.39ms. Allocated memory is still 4.9GB. Free memory is still 3.5GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:16:12,493 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 104.9MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2718.73ms. Allocated memory was 104.9MB in the beginning and 287.3MB in the end (delta: 182.5MB). Free memory was 73.4MB in the beginning and 128.2MB in the end (delta: -54.8MB). Peak memory consumption was 144.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 1669.32ms. Allocated memory was 287.3MB in the beginning and 595.6MB in the end (delta: 308.3MB). Free memory was 128.2MB in the beginning and 306.5MB in the end (delta: -178.3MB). Peak memory consumption was 127.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 1544.89ms. Allocated memory was 595.6MB in the beginning and 1.6GB in the end (delta: 1.0GB). Free memory was 306.5MB in the beginning and 1.3GB in the end (delta: -977.3MB). Peak memory consumption was 84.9MB. Max. memory is 16.1GB. * RCFGBuilder took 131148.31ms. Allocated memory was 1.6GB in the beginning and 4.9GB in the end (delta: 3.3GB). Free memory was 1.3GB in the beginning and 4.1GB in the end (delta: -2.8GB). Peak memory consumption was 3.0GB. Max. memory is 16.1GB. * TraceAbstraction took 18148.57ms. Allocated memory is still 4.9GB. Free memory was 4.1GB in the beginning and 3.5GB in the end (delta: 540.0MB). Peak memory consumption was 539.0MB. Max. memory is 16.1GB. * Witness Printer took 4.39ms. Allocated memory is still 4.9GB. Free memory is still 3.5GB. 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 431, overapproximation of bitwiseOr at line 429, overapproximation of bitwiseAnd at line 423. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 2); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (2 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 1); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (1 - 1); [L31] const SORT_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 4); [L32] const SORT_6 msb_SORT_6 = (SORT_6)1 << (4 - 1); [L34] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 8); [L35] const SORT_9 msb_SORT_9 = (SORT_9)1 << (8 - 1); [L37] const SORT_11 mask_SORT_11 = (SORT_11)-1 >> (sizeof(SORT_11) * 8 - 32); [L38] const SORT_11 msb_SORT_11 = (SORT_11)1 << (32 - 1); [L40] const SORT_27 mask_SORT_27 = (SORT_27)-1 >> (sizeof(SORT_27) * 8 - 3); [L41] const SORT_27 msb_SORT_27 = (SORT_27)1 << (3 - 1); [L43] const SORT_34 mask_SORT_34 = (SORT_34)-1 >> (sizeof(SORT_34) * 8 - 5); [L44] const SORT_34 msb_SORT_34 = (SORT_34)1 << (5 - 1); [L46] const SORT_43 mask_SORT_43 = (SORT_43)-1 >> (sizeof(SORT_43) * 8 - 6); [L47] const SORT_43 msb_SORT_43 = (SORT_43)1 << (6 - 1); [L49] const SORT_229 mask_SORT_229 = (SORT_229)-1 >> (sizeof(SORT_229) * 8 - 7); [L50] const SORT_229 msb_SORT_229 = (SORT_229)1 << (7 - 1); [L52] const SORT_232 mask_SORT_232 = (SORT_232)-1 >> (sizeof(SORT_232) * 8 - 9); [L53] const SORT_232 msb_SORT_232 = (SORT_232)1 << (9 - 1); [L55] const SORT_234 mask_SORT_234 = (SORT_234)-1 >> (sizeof(SORT_234) * 8 - 10); [L56] const SORT_234 msb_SORT_234 = (SORT_234)1 << (10 - 1); [L58] const SORT_236 mask_SORT_236 = (SORT_236)-1 >> (sizeof(SORT_236) * 8 - 11); [L59] const SORT_236 msb_SORT_236 = (SORT_236)1 << (11 - 1); [L61] const SORT_238 mask_SORT_238 = (SORT_238)-1 >> (sizeof(SORT_238) * 8 - 12); [L62] const SORT_238 msb_SORT_238 = (SORT_238)1 << (12 - 1); [L64] const SORT_573 mask_SORT_573 = (SORT_573)-1 >> (sizeof(SORT_573) * 8 - 14); [L65] const SORT_573 msb_SORT_573 = (SORT_573)1 << (14 - 1); [L67] const SORT_575 mask_SORT_575 = (SORT_575)-1 >> (sizeof(SORT_575) * 8 - 16); [L68] const SORT_575 msb_SORT_575 = (SORT_575)1 << (16 - 1); [L70] const SORT_577 mask_SORT_577 = (SORT_577)-1 >> (sizeof(SORT_577) * 8 - 22); [L71] const SORT_577 msb_SORT_577 = (SORT_577)1 << (22 - 1); [L73] const SORT_579 mask_SORT_579 = (SORT_579)-1 >> (sizeof(SORT_579) * 8 - 24); [L74] const SORT_579 msb_SORT_579 = (SORT_579)1 << (24 - 1); [L76] const SORT_581 mask_SORT_581 = (SORT_581)-1 >> (sizeof(SORT_581) * 8 - 30); [L77] const SORT_581 msb_SORT_581 = (SORT_581)1 << (30 - 1); [L79] const SORT_626 mask_SORT_626 = (SORT_626)-1 >> (sizeof(SORT_626) * 8 - 33); [L80] const SORT_626 msb_SORT_626 = (SORT_626)1 << (33 - 1); [L82] const SORT_783 mask_SORT_783 = (SORT_783)-1 >> (sizeof(SORT_783) * 8 - 13); [L83] const SORT_783 msb_SORT_783 = (SORT_783)1 << (13 - 1); [L85] const SORT_786 mask_SORT_786 = (SORT_786)-1 >> (sizeof(SORT_786) * 8 - 15); [L86] const SORT_786 msb_SORT_786 = (SORT_786)1 << (15 - 1); [L88] const SORT_789 mask_SORT_789 = (SORT_789)-1 >> (sizeof(SORT_789) * 8 - 17); [L89] const SORT_789 msb_SORT_789 = (SORT_789)1 << (17 - 1); [L91] const SORT_791 mask_SORT_791 = (SORT_791)-1 >> (sizeof(SORT_791) * 8 - 18); [L92] const SORT_791 msb_SORT_791 = (SORT_791)1 << (18 - 1); [L94] const SORT_882 mask_SORT_882 = (SORT_882)-1 >> (sizeof(SORT_882) * 8 - 19); [L95] const SORT_882 msb_SORT_882 = (SORT_882)1 << (19 - 1); [L97] const SORT_884 mask_SORT_884 = (SORT_884)-1 >> (sizeof(SORT_884) * 8 - 20); [L98] const SORT_884 msb_SORT_884 = (SORT_884)1 << (20 - 1); [L100] const SORT_886 mask_SORT_886 = (SORT_886)-1 >> (sizeof(SORT_886) * 8 - 21); [L101] const SORT_886 msb_SORT_886 = (SORT_886)1 << (21 - 1); [L103] const SORT_1103 mask_SORT_1103 = (SORT_1103)-1 >> (sizeof(SORT_1103) * 8 - 23); [L104] const SORT_1103 msb_SORT_1103 = (SORT_1103)1 << (23 - 1); [L106] const SORT_1251 mask_SORT_1251 = (SORT_1251)-1 >> (sizeof(SORT_1251) * 8 - 26); [L107] const SORT_1251 msb_SORT_1251 = (SORT_1251)1 << (26 - 1); [L109] const SORT_1293 mask_SORT_1293 = (SORT_1293)-1 >> (sizeof(SORT_1293) * 8 - 25); [L110] const SORT_1293 msb_SORT_1293 = (SORT_1293)1 << (25 - 1); [L112] const SORT_1298 mask_SORT_1298 = (SORT_1298)-1 >> (sizeof(SORT_1298) * 8 - 27); [L113] const SORT_1298 msb_SORT_1298 = (SORT_1298)1 << (27 - 1); [L115] const SORT_1301 mask_SORT_1301 = (SORT_1301)-1 >> (sizeof(SORT_1301) * 8 - 28); [L116] const SORT_1301 msb_SORT_1301 = (SORT_1301)1 << (28 - 1); [L118] const SORT_1304 mask_SORT_1304 = (SORT_1304)-1 >> (sizeof(SORT_1304) * 8 - 29); [L119] const SORT_1304 msb_SORT_1304 = (SORT_1304)1 << (29 - 1); [L121] const SORT_1309 mask_SORT_1309 = (SORT_1309)-1 >> (sizeof(SORT_1309) * 8 - 31); [L122] const SORT_1309 msb_SORT_1309 = (SORT_1309)1 << (31 - 1); [L124] const SORT_3017 mask_SORT_3017 = (SORT_3017)-1 >> (sizeof(SORT_3017) * 8 - 34); [L125] const SORT_3017 msb_SORT_3017 = (SORT_3017)1 << (34 - 1); [L127] const SORT_3 var_73 = 0; [L128] const SORT_3 var_89 = 1; [L129] const SORT_1 var_96 = 0; [L130] const SORT_1 var_104 = 3; [L131] const SORT_1 var_106 = 2; [L132] const SORT_1 var_108 = 1; [L133] const SORT_27 var_112 = 1; [L134] const SORT_27 var_115 = 3; [L135] const SORT_27 var_118 = 2; [L136] const SORT_27 var_122 = 5; [L137] const SORT_27 var_125 = 7; [L138] const SORT_27 var_128 = 6; [L139] const SORT_27 var_132 = 4; [L140] const SORT_9 var_158 = 0; [L141] const SORT_34 var_179 = 11; [L142] const SORT_34 var_181 = 10; [L143] const SORT_34 var_183 = 2; [L144] const SORT_34 var_185 = 9; [L145] const SORT_34 var_200 = 21; [L146] const SORT_34 var_202 = 20; [L147] const SORT_34 var_204 = 19; [L148] const SORT_34 var_206 = 18; [L149] const SORT_34 var_208 = 17; [L150] const SORT_34 var_210 = 16; [L151] const SORT_34 var_212 = 15; [L152] const SORT_34 var_214 = 14; [L153] const SORT_34 var_216 = 8; [L154] const SORT_34 var_218 = 6; [L155] const SORT_34 var_220 = 3; [L156] const SORT_34 var_222 = 5; [L157] const SORT_34 var_241 = 4; [L158] const SORT_34 var_243 = 1; [L159] const SORT_34 var_253 = 7; [L160] const SORT_34 var_271 = 13; [L161] const SORT_34 var_279 = 12; [L162] const SORT_34 var_300 = 23; [L163] const SORT_34 var_303 = 22; [L164] const SORT_34 var_312 = 25; [L165] const SORT_34 var_315 = 27; [L166] const SORT_34 var_318 = 26; [L167] const SORT_34 var_322 = 29; [L168] const SORT_34 var_325 = 31; [L169] const SORT_34 var_328 = 30; [L170] const SORT_34 var_332 = 28; [L171] const SORT_34 var_338 = 24; [L172] const SORT_43 var_361 = 0; [L173] const SORT_9 var_437 = 3; [L174] const SORT_27 var_479 = 0; [L175] const SORT_11 var_502 = 0; [L176] const SORT_626 var_627 = 0; [L177] const SORT_9 var_796 = 2; [L178] const SORT_9 var_799 = 1; [L179] const SORT_6 var_1243 = 8; [L180] const SORT_1251 var_1252 = 0; [L181] const SORT_9 var_1338 = 255; [L182] const SORT_43 var_1342 = 1; [L183] const SORT_6 var_1458 = 0; [L184] const SORT_34 var_2370 = 0; [L185] const SORT_6 var_2397 = 1; [L186] const SORT_6 var_2400 = 3; [L187] const SORT_6 var_2403 = 2; [L188] const SORT_6 var_2407 = 5; [L189] const SORT_6 var_2410 = 7; [L190] const SORT_6 var_2413 = 6; [L191] const SORT_6 var_2417 = 4; [L192] const SORT_6 var_2423 = 9; [L193] const SORT_6 var_2426 = 11; [L194] const SORT_6 var_2429 = 10; [L195] const SORT_6 var_2433 = 13; [L196] const SORT_6 var_2436 = 15; [L197] const SORT_6 var_2439 = 14; [L198] const SORT_6 var_2443 = 12; [L199] const SORT_1301 var_2629 = 0; [L200] const SORT_3017 var_3019 = 0; [L202] SORT_1 input_2; [L203] SORT_3 input_4; [L204] SORT_3 input_5; [L205] SORT_6 input_7; [L206] SORT_3 input_8; [L207] SORT_9 input_10; [L208] SORT_11 input_12; [L209] SORT_1 input_13; [L210] SORT_9 input_14; [L211] SORT_9 input_15; [L212] SORT_9 input_16; [L213] SORT_1 input_17; [L214] SORT_9 input_18; [L215] SORT_9 input_19; [L216] SORT_9 input_20; [L217] SORT_3 input_21; [L218] SORT_3 input_22; [L219] SORT_3 input_23; [L220] SORT_3 input_24; [L221] SORT_3 input_25; [L222] SORT_1 input_26; [L223] SORT_27 input_28; [L224] SORT_1 input_29; [L225] SORT_3 input_30; [L226] SORT_3 input_31; [L227] SORT_3 input_32; [L228] SORT_3 input_33; [L229] SORT_34 input_35; [L230] SORT_1 input_36; [L231] SORT_9 input_37; [L232] SORT_11 input_38; [L233] SORT_27 input_39; [L234] SORT_9 input_40; [L235] SORT_3 input_41; [L236] SORT_1 input_42; [L237] SORT_43 input_44; [L238] SORT_1 input_45; [L239] SORT_43 input_46; [L240] SORT_1 input_47; [L241] SORT_43 input_48; [L242] SORT_1 input_49; [L243] SORT_43 input_50; [L244] SORT_1 input_51; [L245] SORT_3 input_52; [L246] SORT_9 input_53; [L247] SORT_3 input_54; [L248] SORT_3 input_55; [L249] SORT_3 input_56; [L250] SORT_9 input_57; [L251] SORT_11 input_58; [L252] SORT_43 input_59; [L253] SORT_1 input_60; [L254] SORT_43 input_61; [L255] SORT_1 input_62; [L256] SORT_43 input_63; [L257] SORT_1 input_64; [L258] SORT_43 input_65; [L259] SORT_1 input_66; [L260] SORT_27 input_67; [L261] SORT_9 input_68; [L262] SORT_1 input_69; [L263] SORT_9 input_70; [L264] SORT_3 input_71; [L265] SORT_1 input_72; [L267] SORT_3 state_74 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L268] SORT_3 state_77 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L269] SORT_3 state_79 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L270] SORT_3 state_82 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L271] SORT_3 state_93 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L272] SORT_1 state_97 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L273] SORT_9 state_159 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L274] SORT_1 state_385 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L275] SORT_9 state_467 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L276] SORT_27 state_480 = __VERIFIER_nondet_uchar() & mask_SORT_27; [L277] SORT_11 state_503 = __VERIFIER_nondet_uint() & mask_SORT_11; [L278] SORT_43 state_548 = __VERIFIER_nondet_uchar() & mask_SORT_43; [L279] SORT_1 state_551 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L280] SORT_43 state_554 = __VERIFIER_nondet_uchar() & mask_SORT_43; [L281] SORT_1 state_557 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L282] SORT_43 state_560 = __VERIFIER_nondet_uchar() & mask_SORT_43; [L283] SORT_1 state_563 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L284] SORT_43 state_566 = __VERIFIER_nondet_uchar() & mask_SORT_43; [L285] SORT_1 state_569 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L286] SORT_9 state_599 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L288] SORT_3 init_75_arg_1 = var_73; [L289] state_74 = init_75_arg_1 [L290] SORT_3 init_78_arg_1 = var_73; [L291] state_77 = init_78_arg_1 [L292] SORT_3 init_80_arg_1 = var_73; [L293] state_79 = init_80_arg_1 [L294] SORT_3 init_83_arg_1 = var_73; [L295] state_82 = init_83_arg_1 [L296] SORT_3 init_94_arg_1 = var_73; [L297] state_93 = init_94_arg_1 [L298] SORT_1 init_98_arg_1 = var_96; [L299] state_97 = init_98_arg_1 [L300] SORT_9 init_160_arg_1 = var_158; [L301] state_159 = init_160_arg_1 [L302] SORT_1 init_386_arg_1 = var_96; [L303] state_385 = init_386_arg_1 [L304] SORT_9 init_468_arg_1 = var_158; [L305] state_467 = init_468_arg_1 [L306] SORT_27 init_481_arg_1 = var_479; [L307] state_480 = init_481_arg_1 [L308] SORT_11 init_504_arg_1 = var_502; [L309] state_503 = init_504_arg_1 [L310] SORT_43 init_549_arg_1 = var_361; [L311] state_548 = init_549_arg_1 [L312] SORT_1 init_552_arg_1 = var_96; [L313] state_551 = init_552_arg_1 [L314] SORT_43 init_555_arg_1 = var_361; [L315] state_554 = init_555_arg_1 [L316] SORT_1 init_558_arg_1 = var_96; [L317] state_557 = init_558_arg_1 [L318] SORT_43 init_561_arg_1 = var_361; [L319] state_560 = init_561_arg_1 [L320] SORT_1 init_564_arg_1 = var_96; [L321] state_563 = init_564_arg_1 [L322] SORT_43 init_567_arg_1 = var_361; [L323] state_566 = init_567_arg_1 [L324] SORT_1 init_570_arg_1 = var_96; [L325] state_569 = init_570_arg_1 [L326] SORT_9 init_600_arg_1 = var_158; [L327] state_599 = init_600_arg_1 VAL [init_160_arg_1=0, init_386_arg_1=0, init_468_arg_1=0, init_481_arg_1=0, init_504_arg_1=0, init_549_arg_1=0, init_552_arg_1=0, init_555_arg_1=0, init_558_arg_1=0, init_561_arg_1=0, init_564_arg_1=0, init_567_arg_1=0, init_570_arg_1=0, init_600_arg_1=0, init_75_arg_1=0, init_78_arg_1=0, init_80_arg_1=0, init_83_arg_1=0, init_94_arg_1=0, init_98_arg_1=0, mask_SORT_1=3, mask_SORT_11=4294967295, mask_SORT_1103=4294967295, mask_SORT_1251=4294967295, mask_SORT_1293=4294967295, mask_SORT_1298=4294967295, mask_SORT_1301=4294967295, mask_SORT_1304=4294967295, mask_SORT_1309=4294967295, mask_SORT_229=127, mask_SORT_232=511, mask_SORT_234=1023, mask_SORT_236=2047, mask_SORT_238=4095, mask_SORT_27=7, mask_SORT_3=1, mask_SORT_3017=18446744073709551615, mask_SORT_34=31, mask_SORT_43=63, mask_SORT_573=16383, mask_SORT_575=65535, mask_SORT_577=4294967295, mask_SORT_579=4294967295, mask_SORT_581=4294967295, mask_SORT_6=15, mask_SORT_626=1, mask_SORT_783=8191, mask_SORT_786=32767, mask_SORT_789=4294967295, mask_SORT_791=4294967295, mask_SORT_882=4294967295, mask_SORT_884=4294967295, mask_SORT_886=4294967295, mask_SORT_9=255, msb_SORT_1=2, msb_SORT_11=2147483648, msb_SORT_1103=4194304, msb_SORT_1251=33554432, msb_SORT_1293=16777216, msb_SORT_1298=67108864, msb_SORT_1301=134217728, msb_SORT_1304=268435456, msb_SORT_1309=1073741824, msb_SORT_229=64, msb_SORT_232=256, msb_SORT_234=512, msb_SORT_236=1024, msb_SORT_238=2048, msb_SORT_27=4, msb_SORT_3=1, msb_SORT_3017=8589934592, msb_SORT_34=16, msb_SORT_43=32, msb_SORT_573=8192, msb_SORT_575=32768, msb_SORT_577=2097152, msb_SORT_579=8388608, msb_SORT_581=536870912, msb_SORT_6=8, msb_SORT_626=4294967296, msb_SORT_783=4096, msb_SORT_786=16384, msb_SORT_789=65536, msb_SORT_791=131072, msb_SORT_882=262144, msb_SORT_884=524288, msb_SORT_886=1048576, msb_SORT_9=128, state_159=0, state_385=0, state_467=0, state_480=0, state_503=0, state_548=0, state_551=0, state_554=0, state_557=0, state_560=0, state_563=0, state_566=0, state_569=0, state_599=0, state_74=0, state_77=0, state_79=0, state_82=0, state_93=0, state_97=0, var_104=3, var_106=2, var_108=1, var_112=1, var_115=3, var_118=2, var_122=5, var_1243=8, var_125=7, var_1252=0, var_128=6, var_132=4, var_1338=255, var_1342=1, var_1458=0, var_158=0, var_179=11, var_181=10, var_183=2, var_185=9, var_200=21, var_202=20, var_204=19, var_206=18, var_208=17, var_210=16, var_212=15, var_214=14, var_216=8, var_218=6, var_220=3, var_222=5, var_2370=0, var_2397=1, var_2400=3, var_2403=2, var_2407=5, var_241=4, var_2410=7, var_2413=6, var_2417=4, var_2423=9, var_2426=11, var_2429=10, var_243=1, var_2433=13, var_2436=15, var_2439=14, var_2443=12, var_253=7, var_2629=0, var_271=13, var_279=12, var_300=23, var_3019=0, var_303=22, var_312=25, var_315=27, var_318=26, var_322=29, var_325=31, var_328=30, var_332=28, var_338=24, var_361=0, var_437=3, var_479=0, var_502=0, var_627=0, var_73=0, var_796=2, var_799=1, var_89=1, var_96=0] [L330] input_2 = __VERIFIER_nondet_uchar() [L331] input_2 = input_2 & mask_SORT_1 [L332] input_4 = __VERIFIER_nondet_uchar() [L333] input_5 = __VERIFIER_nondet_uchar() [L334] input_5 = input_5 & mask_SORT_3 [L335] input_7 = __VERIFIER_nondet_uchar() [L336] input_7 = input_7 & mask_SORT_6 [L337] input_8 = __VERIFIER_nondet_uchar() [L338] input_8 = input_8 & mask_SORT_3 [L339] input_10 = __VERIFIER_nondet_uchar() [L340] input_12 = __VERIFIER_nondet_uint() [L341] input_13 = __VERIFIER_nondet_uchar() [L342] input_13 = input_13 & mask_SORT_1 [L343] input_14 = __VERIFIER_nondet_uchar() [L344] input_15 = __VERIFIER_nondet_uchar() [L345] input_16 = __VERIFIER_nondet_uchar() [L346] input_17 = __VERIFIER_nondet_uchar() [L347] input_17 = input_17 & mask_SORT_1 [L348] input_18 = __VERIFIER_nondet_uchar() [L349] input_19 = __VERIFIER_nondet_uchar() [L350] input_20 = __VERIFIER_nondet_uchar() [L351] input_21 = __VERIFIER_nondet_uchar() [L352] input_21 = input_21 & mask_SORT_3 [L353] input_22 = __VERIFIER_nondet_uchar() [L354] input_22 = input_22 & mask_SORT_3 [L355] input_23 = __VERIFIER_nondet_uchar() [L356] input_24 = __VERIFIER_nondet_uchar() [L357] input_24 = input_24 & mask_SORT_3 [L358] input_25 = __VERIFIER_nondet_uchar() [L359] input_25 = input_25 & mask_SORT_3 [L360] input_26 = __VERIFIER_nondet_uchar() [L361] input_26 = input_26 & mask_SORT_1 [L362] input_28 = __VERIFIER_nondet_uchar() [L363] input_28 = input_28 & mask_SORT_27 [L364] input_29 = __VERIFIER_nondet_uchar() [L365] input_29 = input_29 & mask_SORT_1 [L366] input_30 = __VERIFIER_nondet_uchar() [L367] input_30 = input_30 & mask_SORT_3 [L368] input_31 = __VERIFIER_nondet_uchar() [L369] input_32 = __VERIFIER_nondet_uchar() [L370] input_33 = __VERIFIER_nondet_uchar() [L371] input_33 = input_33 & mask_SORT_3 [L372] input_35 = __VERIFIER_nondet_uchar() [L373] input_35 = input_35 & mask_SORT_34 [L374] input_36 = __VERIFIER_nondet_uchar() [L375] input_37 = __VERIFIER_nondet_uchar() [L376] input_38 = __VERIFIER_nondet_uint() [L377] input_39 = __VERIFIER_nondet_uchar() [L378] input_40 = __VERIFIER_nondet_uchar() [L379] input_41 = __VERIFIER_nondet_uchar() [L380] input_42 = __VERIFIER_nondet_uchar() [L381] input_44 = __VERIFIER_nondet_uchar() [L382] input_45 = __VERIFIER_nondet_uchar() [L383] input_46 = __VERIFIER_nondet_uchar() [L384] input_47 = __VERIFIER_nondet_uchar() [L385] input_48 = __VERIFIER_nondet_uchar() [L386] input_49 = __VERIFIER_nondet_uchar() [L387] input_50 = __VERIFIER_nondet_uchar() [L388] input_51 = __VERIFIER_nondet_uchar() [L389] input_52 = __VERIFIER_nondet_uchar() [L390] input_53 = __VERIFIER_nondet_uchar() [L391] input_54 = __VERIFIER_nondet_uchar() [L392] input_55 = __VERIFIER_nondet_uchar() [L393] input_56 = __VERIFIER_nondet_uchar() [L394] input_57 = __VERIFIER_nondet_uchar() [L395] input_58 = __VERIFIER_nondet_uint() [L396] input_59 = __VERIFIER_nondet_uchar() [L397] input_60 = __VERIFIER_nondet_uchar() [L398] input_61 = __VERIFIER_nondet_uchar() [L399] input_62 = __VERIFIER_nondet_uchar() [L400] input_63 = __VERIFIER_nondet_uchar() [L401] input_64 = __VERIFIER_nondet_uchar() [L402] input_65 = __VERIFIER_nondet_uchar() [L403] input_66 = __VERIFIER_nondet_uchar() [L404] input_67 = __VERIFIER_nondet_uchar() [L405] input_68 = __VERIFIER_nondet_uchar() [L406] input_69 = __VERIFIER_nondet_uchar() [L407] input_70 = __VERIFIER_nondet_uchar() [L408] input_71 = __VERIFIER_nondet_uchar() [L409] input_72 = __VERIFIER_nondet_uchar() [L412] SORT_3 var_76_arg_0 = state_74; [L413] SORT_3 var_76 = ~var_76_arg_0; [L414] SORT_3 var_81_arg_0 = state_79; [L415] SORT_3 var_81_arg_1 = state_77; [L416] SORT_3 var_81_arg_2 = input_41; VAL [init_160_arg_1=0, init_386_arg_1=0, init_468_arg_1=0, init_481_arg_1=0, init_504_arg_1=0, init_549_arg_1=0, init_552_arg_1=0, init_555_arg_1=0, init_558_arg_1=0, init_561_arg_1=0, init_564_arg_1=0, init_567_arg_1=0, init_570_arg_1=0, init_600_arg_1=0, init_75_arg_1=0, init_78_arg_1=0, init_80_arg_1=0, init_83_arg_1=0, init_94_arg_1=0, init_98_arg_1=0, input_10=44, input_12=36, input_13=0, input_14=7, input_15=5, input_16=29, input_17=0, input_18=9, input_19=23, input_2=0, input_20=10, input_21=0, input_22=1, input_23=1, input_24=0, input_25=0, input_26=0, input_28=1, input_29=0, input_30=1, input_31=3, input_32=42, input_33=0, input_35=0, input_36=46, input_37=37, input_38=26, input_39=8, input_4=31, input_40=39, input_41=0, input_42=14, input_44=34, input_45=12, input_46=21, input_47=40, input_48=18, input_49=41, input_5=1, input_50=13, input_51=33, input_52=15, input_53=20, input_54=6, input_55=28, input_56=38, input_57=47, input_58=22, input_59=32, input_60=45, input_61=30, input_62=11, input_63=2, input_64=16, input_65=25, input_66=43, input_67=17, input_68=19, input_69=4, input_7=5, input_70=27, input_71=35, input_72=24, input_8=0, mask_SORT_1=3, mask_SORT_11=4294967295, mask_SORT_1103=4294967295, mask_SORT_1251=4294967295, mask_SORT_1293=4294967295, mask_SORT_1298=4294967295, mask_SORT_1301=4294967295, mask_SORT_1304=4294967295, mask_SORT_1309=4294967295, mask_SORT_229=127, mask_SORT_232=511, mask_SORT_234=1023, mask_SORT_236=2047, mask_SORT_238=4095, mask_SORT_27=7, mask_SORT_3=1, mask_SORT_3017=18446744073709551615, mask_SORT_34=31, mask_SORT_43=63, mask_SORT_573=16383, mask_SORT_575=65535, mask_SORT_577=4294967295, mask_SORT_579=4294967295, mask_SORT_581=4294967295, mask_SORT_6=15, mask_SORT_626=1, mask_SORT_783=8191, mask_SORT_786=32767, mask_SORT_789=4294967295, mask_SORT_791=4294967295, mask_SORT_882=4294967295, mask_SORT_884=4294967295, mask_SORT_886=4294967295, mask_SORT_9=255, msb_SORT_1=2, msb_SORT_11=2147483648, msb_SORT_1103=4194304, msb_SORT_1251=33554432, msb_SORT_1293=16777216, msb_SORT_1298=67108864, msb_SORT_1301=134217728, msb_SORT_1304=268435456, msb_SORT_1309=1073741824, msb_SORT_229=64, msb_SORT_232=256, msb_SORT_234=512, msb_SORT_236=1024, msb_SORT_238=2048, msb_SORT_27=4, msb_SORT_3=1, msb_SORT_3017=8589934592, msb_SORT_34=16, msb_SORT_43=32, msb_SORT_573=8192, msb_SORT_575=32768, msb_SORT_577=2097152, msb_SORT_579=8388608, msb_SORT_581=536870912, msb_SORT_6=8, msb_SORT_626=4294967296, msb_SORT_783=4096, msb_SORT_786=16384, msb_SORT_789=65536, msb_SORT_791=131072, msb_SORT_882=262144, msb_SORT_884=524288, msb_SORT_886=1048576, msb_SORT_9=128, state_159=0, state_385=0, state_467=0, state_480=0, state_503=0, state_548=0, state_551=0, state_554=0, state_557=0, state_560=0, state_563=0, state_566=0, state_569=0, state_599=0, state_74=0, state_77=0, state_79=0, state_82=0, state_93=0, state_97=0, var_104=3, var_106=2, var_108=1, var_112=1, var_115=3, var_118=2, var_122=5, var_1243=8, var_125=7, var_1252=0, var_128=6, var_132=4, var_1338=255, var_1342=1, var_1458=0, var_158=0, var_179=11, var_181=10, var_183=2, var_185=9, var_200=21, var_202=20, var_204=19, var_206=18, var_208=17, var_210=16, var_212=15, var_214=14, var_216=8, var_218=6, var_220=3, var_222=5, var_2370=0, var_2397=1, var_2400=3, var_2403=2, var_2407=5, var_241=4, var_2410=7, var_2413=6, var_2417=4, var_2423=9, var_2426=11, var_2429=10, var_243=1, var_2433=13, var_2436=15, var_2439=14, var_2443=12, var_253=7, var_2629=0, var_271=13, var_279=12, var_300=23, var_3019=0, var_303=22, var_312=25, var_315=27, var_318=26, var_322=29, var_325=31, var_328=30, var_332=28, var_338=24, var_361=0, var_437=3, var_479=0, var_502=0, var_627=0, var_73=0, var_76_arg_0=0, var_796=2, var_799=1, var_81_arg_0=0, var_81_arg_1=0, var_81_arg_2=0, var_89=1, var_96=0] [L417] EXPR var_81_arg_0 ? var_81_arg_1 : var_81_arg_2 VAL [init_160_arg_1=0, init_386_arg_1=0, init_468_arg_1=0, init_481_arg_1=0, init_504_arg_1=0, init_549_arg_1=0, init_552_arg_1=0, init_555_arg_1=0, init_558_arg_1=0, init_561_arg_1=0, init_564_arg_1=0, init_567_arg_1=0, init_570_arg_1=0, init_600_arg_1=0, init_75_arg_1=0, init_78_arg_1=0, init_80_arg_1=0, init_83_arg_1=0, init_94_arg_1=0, init_98_arg_1=0, input_10=44, input_12=36, input_13=0, input_14=7, input_15=5, input_16=29, input_17=0, input_18=9, input_19=23, input_2=0, input_20=10, input_21=0, input_22=1, input_23=1, input_24=0, input_25=0, input_26=0, input_28=1, input_29=0, input_30=1, input_31=3, input_32=42, input_33=0, input_35=0, input_36=46, input_37=37, input_38=26, input_39=8, input_4=31, input_40=39, input_41=0, input_42=14, input_44=34, input_45=12, input_46=21, input_47=40, input_48=18, input_49=41, input_5=1, input_50=13, input_51=33, input_52=15, input_53=20, input_54=6, input_55=28, input_56=38, input_57=47, input_58=22, input_59=32, input_60=45, input_61=30, input_62=11, input_63=2, input_64=16, input_65=25, input_66=43, input_67=17, input_68=19, input_69=4, input_7=5, input_70=27, input_71=35, input_72=24, input_8=0, mask_SORT_1=3, mask_SORT_11=4294967295, mask_SORT_1103=4294967295, mask_SORT_1251=4294967295, mask_SORT_1293=4294967295, mask_SORT_1298=4294967295, mask_SORT_1301=4294967295, mask_SORT_1304=4294967295, mask_SORT_1309=4294967295, mask_SORT_229=127, mask_SORT_232=511, mask_SORT_234=1023, mask_SORT_236=2047, mask_SORT_238=4095, mask_SORT_27=7, mask_SORT_3=1, mask_SORT_3017=18446744073709551615, mask_SORT_34=31, mask_SORT_43=63, mask_SORT_573=16383, mask_SORT_575=65535, mask_SORT_577=4294967295, mask_SORT_579=4294967295, mask_SORT_581=4294967295, mask_SORT_6=15, mask_SORT_626=1, mask_SORT_783=8191, mask_SORT_786=32767, mask_SORT_789=4294967295, mask_SORT_791=4294967295, mask_SORT_882=4294967295, mask_SORT_884=4294967295, mask_SORT_886=4294967295, mask_SORT_9=255, msb_SORT_1=2, msb_SORT_11=2147483648, msb_SORT_1103=4194304, msb_SORT_1251=33554432, msb_SORT_1293=16777216, msb_SORT_1298=67108864, msb_SORT_1301=134217728, msb_SORT_1304=268435456, msb_SORT_1309=1073741824, msb_SORT_229=64, msb_SORT_232=256, msb_SORT_234=512, msb_SORT_236=1024, msb_SORT_238=2048, msb_SORT_27=4, msb_SORT_3=1, msb_SORT_3017=8589934592, msb_SORT_34=16, msb_SORT_43=32, msb_SORT_573=8192, msb_SORT_575=32768, msb_SORT_577=2097152, msb_SORT_579=8388608, msb_SORT_581=536870912, msb_SORT_6=8, msb_SORT_626=4294967296, msb_SORT_783=4096, msb_SORT_786=16384, msb_SORT_789=65536, msb_SORT_791=131072, msb_SORT_882=262144, msb_SORT_884=524288, msb_SORT_886=1048576, msb_SORT_9=128, state_159=0, state_385=0, state_467=0, state_480=0, state_503=0, state_548=0, state_551=0, state_554=0, state_557=0, state_560=0, state_563=0, state_566=0, state_569=0, state_599=0, state_74=0, state_77=0, state_79=0, state_82=0, state_93=0, state_97=0, var_104=3, var_106=2, var_108=1, var_112=1, var_115=3, var_118=2, var_122=5, var_1243=8, var_125=7, var_1252=0, var_128=6, var_132=4, var_1338=255, var_1342=1, var_1458=0, var_158=0, var_179=11, var_181=10, var_183=2, var_185=9, var_200=21, var_202=20, var_204=19, var_206=18, var_208=17, var_210=16, var_212=15, var_214=14, var_216=8, var_218=6, var_220=3, var_222=5, var_2370=0, var_2397=1, var_2400=3, var_2403=2, var_2407=5, var_241=4, var_2410=7, var_2413=6, var_2417=4, var_2423=9, var_2426=11, var_2429=10, var_243=1, var_2433=13, var_2436=15, var_2439=14, var_2443=12, var_253=7, var_2629=0, var_271=13, var_279=12, var_300=23, var_3019=0, var_303=22, var_312=25, var_315=27, var_318=26, var_322=29, var_325=31, var_328=30, var_332=28, var_338=24, var_361=0, var_437=3, var_479=0, var_502=0, var_627=0, var_73=0, var_76_arg_0=0, var_796=2, var_799=1, var_81_arg_0=0, var_81_arg_0 ? var_81_arg_1 : var_81_arg_2=0, var_81_arg_1=0, var_81_arg_2=0, var_89=1, var_96=0] [L417] SORT_3 var_81 = var_81_arg_0 ? var_81_arg_1 : var_81_arg_2; [L418] var_81 = var_81 & mask_SORT_3 [L419] SORT_3 var_84_arg_0 = state_79; [L420] SORT_3 var_84_arg_1 = state_82; [L421] SORT_3 var_84_arg_2 = input_41; VAL [init_160_arg_1=0, init_386_arg_1=0, init_468_arg_1=0, init_481_arg_1=0, init_504_arg_1=0, init_549_arg_1=0, init_552_arg_1=0, init_555_arg_1=0, init_558_arg_1=0, init_561_arg_1=0, init_564_arg_1=0, init_567_arg_1=0, init_570_arg_1=0, init_600_arg_1=0, init_75_arg_1=0, init_78_arg_1=0, init_80_arg_1=0, init_83_arg_1=0, init_94_arg_1=0, init_98_arg_1=0, input_10=44, input_12=36, input_13=0, input_14=7, input_15=5, input_16=29, input_17=0, input_18=9, input_19=23, input_2=0, input_20=10, input_21=0, input_22=1, input_23=1, input_24=0, input_25=0, input_26=0, input_28=1, input_29=0, input_30=1, input_31=3, input_32=42, input_33=0, input_35=0, input_36=46, input_37=37, input_38=26, input_39=8, input_4=31, input_40=39, input_41=0, input_42=14, input_44=34, input_45=12, input_46=21, input_47=40, input_48=18, input_49=41, input_5=1, input_50=13, input_51=33, input_52=15, input_53=20, input_54=6, input_55=28, input_56=38, input_57=47, input_58=22, input_59=32, input_60=45, input_61=30, input_62=11, input_63=2, input_64=16, input_65=25, input_66=43, input_67=17, input_68=19, input_69=4, input_7=5, input_70=27, input_71=35, input_72=24, input_8=0, mask_SORT_1=3, mask_SORT_11=4294967295, mask_SORT_1103=4294967295, mask_SORT_1251=4294967295, mask_SORT_1293=4294967295, mask_SORT_1298=4294967295, mask_SORT_1301=4294967295, mask_SORT_1304=4294967295, mask_SORT_1309=4294967295, mask_SORT_229=127, mask_SORT_232=511, mask_SORT_234=1023, mask_SORT_236=2047, mask_SORT_238=4095, mask_SORT_27=7, mask_SORT_3=1, mask_SORT_3017=18446744073709551615, mask_SORT_34=31, mask_SORT_43=63, mask_SORT_573=16383, mask_SORT_575=65535, mask_SORT_577=4294967295, mask_SORT_579=4294967295, mask_SORT_581=4294967295, mask_SORT_6=15, mask_SORT_626=1, mask_SORT_783=8191, mask_SORT_786=32767, mask_SORT_789=4294967295, mask_SORT_791=4294967295, mask_SORT_882=4294967295, mask_SORT_884=4294967295, mask_SORT_886=4294967295, mask_SORT_9=255, msb_SORT_1=2, msb_SORT_11=2147483648, msb_SORT_1103=4194304, msb_SORT_1251=33554432, msb_SORT_1293=16777216, msb_SORT_1298=67108864, msb_SORT_1301=134217728, msb_SORT_1304=268435456, msb_SORT_1309=1073741824, msb_SORT_229=64, msb_SORT_232=256, msb_SORT_234=512, msb_SORT_236=1024, msb_SORT_238=2048, msb_SORT_27=4, msb_SORT_3=1, msb_SORT_3017=8589934592, msb_SORT_34=16, msb_SORT_43=32, msb_SORT_573=8192, msb_SORT_575=32768, msb_SORT_577=2097152, msb_SORT_579=8388608, msb_SORT_581=536870912, msb_SORT_6=8, msb_SORT_626=4294967296, msb_SORT_783=4096, msb_SORT_786=16384, msb_SORT_789=65536, msb_SORT_791=131072, msb_SORT_882=262144, msb_SORT_884=524288, msb_SORT_886=1048576, msb_SORT_9=128, state_159=0, state_385=0, state_467=0, state_480=0, state_503=0, state_548=0, state_551=0, state_554=0, state_557=0, state_560=0, state_563=0, state_566=0, state_569=0, state_599=0, state_74=0, state_77=0, state_79=0, state_82=0, state_93=0, state_97=0, var_104=3, var_106=2, var_108=1, var_112=1, var_115=3, var_118=2, var_122=5, var_1243=8, var_125=7, var_1252=0, var_128=6, var_132=4, var_1338=255, var_1342=1, var_1458=0, var_158=0, var_179=11, var_181=10, var_183=2, var_185=9, var_200=21, var_202=20, var_204=19, var_206=18, var_208=17, var_210=16, var_212=15, var_214=14, var_216=8, var_218=6, var_220=3, var_222=5, var_2370=0, var_2397=1, var_2400=3, var_2403=2, var_2407=5, var_241=4, var_2410=7, var_2413=6, var_2417=4, var_2423=9, var_2426=11, var_2429=10, var_243=1, var_2433=13, var_2436=15, var_2439=14, var_2443=12, var_253=7, var_2629=0, var_271=13, var_279=12, var_300=23, var_3019=0, var_303=22, var_312=25, var_315=27, var_318=26, var_322=29, var_325=31, var_328=30, var_332=28, var_338=24, var_361=0, var_437=3, var_479=0, var_502=0, var_627=0, var_73=0, var_76_arg_0=0, var_796=2, var_799=1, var_81=0, var_81_arg_0=0, var_81_arg_1=0, var_81_arg_2=0, var_84_arg_0=0, var_84_arg_1=0, var_84_arg_2=0, var_89=1, var_96=0] [L422] EXPR var_84_arg_0 ? var_84_arg_1 : var_84_arg_2 VAL [init_160_arg_1=0, init_386_arg_1=0, init_468_arg_1=0, init_481_arg_1=0, init_504_arg_1=0, init_549_arg_1=0, init_552_arg_1=0, init_555_arg_1=0, init_558_arg_1=0, init_561_arg_1=0, init_564_arg_1=0, init_567_arg_1=0, init_570_arg_1=0, init_600_arg_1=0, init_75_arg_1=0, init_78_arg_1=0, init_80_arg_1=0, init_83_arg_1=0, init_94_arg_1=0, init_98_arg_1=0, input_10=44, input_12=36, input_13=0, input_14=7, input_15=5, input_16=29, input_17=0, input_18=9, input_19=23, input_2=0, input_20=10, input_21=0, input_22=1, input_23=1, input_24=0, input_25=0, input_26=0, input_28=1, input_29=0, input_30=1, input_31=3, input_32=42, input_33=0, input_35=0, input_36=46, input_37=37, input_38=26, input_39=8, input_4=31, input_40=39, input_41=0, input_42=14, input_44=34, input_45=12, input_46=21, input_47=40, input_48=18, input_49=41, input_5=1, input_50=13, input_51=33, input_52=15, input_53=20, input_54=6, input_55=28, input_56=38, input_57=47, input_58=22, input_59=32, input_60=45, input_61=30, input_62=11, input_63=2, input_64=16, input_65=25, input_66=43, input_67=17, input_68=19, input_69=4, input_7=5, input_70=27, input_71=35, input_72=24, input_8=0, mask_SORT_1=3, mask_SORT_11=4294967295, mask_SORT_1103=4294967295, mask_SORT_1251=4294967295, mask_SORT_1293=4294967295, mask_SORT_1298=4294967295, mask_SORT_1301=4294967295, mask_SORT_1304=4294967295, mask_SORT_1309=4294967295, mask_SORT_229=127, mask_SORT_232=511, mask_SORT_234=1023, mask_SORT_236=2047, mask_SORT_238=4095, mask_SORT_27=7, mask_SORT_3=1, mask_SORT_3017=18446744073709551615, mask_SORT_34=31, mask_SORT_43=63, mask_SORT_573=16383, mask_SORT_575=65535, mask_SORT_577=4294967295, mask_SORT_579=4294967295, mask_SORT_581=4294967295, mask_SORT_6=15, mask_SORT_626=1, mask_SORT_783=8191, mask_SORT_786=32767, mask_SORT_789=4294967295, mask_SORT_791=4294967295, mask_SORT_882=4294967295, mask_SORT_884=4294967295, mask_SORT_886=4294967295, mask_SORT_9=255, msb_SORT_1=2, msb_SORT_11=2147483648, msb_SORT_1103=4194304, msb_SORT_1251=33554432, msb_SORT_1293=16777216, msb_SORT_1298=67108864, msb_SORT_1301=134217728, msb_SORT_1304=268435456, msb_SORT_1309=1073741824, msb_SORT_229=64, msb_SORT_232=256, msb_SORT_234=512, msb_SORT_236=1024, msb_SORT_238=2048, msb_SORT_27=4, msb_SORT_3=1, msb_SORT_3017=8589934592, msb_SORT_34=16, msb_SORT_43=32, msb_SORT_573=8192, msb_SORT_575=32768, msb_SORT_577=2097152, msb_SORT_579=8388608, msb_SORT_581=536870912, msb_SORT_6=8, msb_SORT_626=4294967296, msb_SORT_783=4096, msb_SORT_786=16384, msb_SORT_789=65536, msb_SORT_791=131072, msb_SORT_882=262144, msb_SORT_884=524288, msb_SORT_886=1048576, msb_SORT_9=128, state_159=0, state_385=0, state_467=0, state_480=0, state_503=0, state_548=0, state_551=0, state_554=0, state_557=0, state_560=0, state_563=0, state_566=0, state_569=0, state_599=0, state_74=0, state_77=0, state_79=0, state_82=0, state_93=0, state_97=0, var_104=3, var_106=2, var_108=1, var_112=1, var_115=3, var_118=2, var_122=5, var_1243=8, var_125=7, var_1252=0, var_128=6, var_132=4, var_1338=255, var_1342=1, var_1458=0, var_158=0, var_179=11, var_181=10, var_183=2, var_185=9, var_200=21, var_202=20, var_204=19, var_206=18, var_208=17, var_210=16, var_212=15, var_214=14, var_216=8, var_218=6, var_220=3, var_222=5, var_2370=0, var_2397=1, var_2400=3, var_2403=2, var_2407=5, var_241=4, var_2410=7, var_2413=6, var_2417=4, var_2423=9, var_2426=11, var_2429=10, var_243=1, var_2433=13, var_2436=15, var_2439=14, var_2443=12, var_253=7, var_2629=0, var_271=13, var_279=12, var_300=23, var_3019=0, var_303=22, var_312=25, var_315=27, var_318=26, var_322=29, var_325=31, var_328=30, var_332=28, var_338=24, var_361=0, var_437=3, var_479=0, var_502=0, var_627=0, var_73=0, var_76_arg_0=0, var_796=2, var_799=1, var_81=0, var_81_arg_0=0, var_81_arg_1=0, var_81_arg_2=0, var_84_arg_0=0, var_84_arg_0 ? var_84_arg_1 : var_84_arg_2=0, var_84_arg_1=0, var_84_arg_2=0, var_89=1, var_96=0] [L422] SORT_3 var_84 = var_84_arg_0 ? var_84_arg_1 : var_84_arg_2; [L423] var_84 = var_84 & mask_SORT_3 [L424] SORT_3 var_85_arg_0 = var_81; [L425] SORT_3 var_85_arg_1 = var_84; [L426] SORT_3 var_85 = var_85_arg_0 == var_85_arg_1; [L427] SORT_3 var_86_arg_0 = var_76; [L428] SORT_3 var_86_arg_1 = var_85; [L429] SORT_3 var_86 = var_86_arg_0 | var_86_arg_1; [L430] SORT_3 var_90_arg_0 = var_86; [L431] SORT_3 var_90 = ~var_90_arg_0; [L432] SORT_3 var_91_arg_0 = var_89; [L433] SORT_3 var_91_arg_1 = var_90; [L434] SORT_3 var_91 = var_91_arg_0 & var_91_arg_1; [L435] var_91 = var_91 & mask_SORT_3 [L436] SORT_3 bad_92_arg_0 = var_91; [L437] CALL __VERIFIER_assert(!(bad_92_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, 1017 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 15.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 2422 SdHoareTripleChecker+Valid, 14.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2422 mSDsluCounter, 9019 SdHoareTripleChecker+Invalid, 14.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6013 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 3006 mSDtfsCounter, 67 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1017occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 2 MinimizatonAttempts, 810 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 20:16:12,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/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_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal31.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/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_07e96954-b732-422d-8f1c-f004f4779c53/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 eb025466549cbb85a27504c97f7f6398ba5c7185bf33af83df28ae3a7ef31ace --- 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 20:16:15,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:16:15,132 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:16:15,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:16:15,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:16:15,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:16:15,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:16:15,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:16:15,209 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:16:15,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:16:15,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:16:15,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:16:15,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:16:15,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:16:15,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:16:15,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:16:15,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:16:15,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:16:15,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:16:15,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:16:15,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:16:15,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:16:15,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:16:15,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:16:15,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:16:15,256 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:16:15,256 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:16:15,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:16:15,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:16:15,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:16:15,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:16:15,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:16:15,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:16:15,264 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:16:15,265 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:16:15,265 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:16:15,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:16:15,267 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:16:15,267 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:16:15,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:16:15,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:16:15,271 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-02 20:16:15,321 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:16:15,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:16:15,323 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:16:15,323 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:16:15,324 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:16:15,324 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:16:15,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:16:15,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:16:15,326 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:16:15,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:16:15,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:16:15,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:16:15,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:16:15,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:16:15,329 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 20:16:15,329 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-02 20:16:15,330 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-02 20:16:15,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:16:15,330 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:16:15,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:16:15,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:16:15,331 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:16:15,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:16:15,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:16:15,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:16:15,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:16:15,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:16:15,332 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-02 20:16:15,333 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-02 20:16:15,333 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:16:15,333 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:16:15,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:16:15,334 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-02 20:16:15,334 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_07e96954-b732-422d-8f1c-f004f4779c53/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb025466549cbb85a27504c97f7f6398ba5c7185bf33af83df28ae3a7ef31ace [2022-11-02 20:16:15,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:16:15,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:16:15,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:16:15,800 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:16:15,801 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:16:15,802 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal31.c [2022-11-02 20:16:15,874 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/data/3851ae126/1f25d538ae2745849b92b8a966131b41/FLAG100f48312 [2022-11-02 20:16:16,845 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:16:16,846 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal31.c [2022-11-02 20:16:16,888 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/data/3851ae126/1f25d538ae2745849b92b8a966131b41/FLAG100f48312 [2022-11-02 20:16:17,280 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/data/3851ae126/1f25d538ae2745849b92b8a966131b41 [2022-11-02 20:16:17,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:16:17,285 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:16:17,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:16:17,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:16:17,291 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:16:17,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:16:17" (1/1) ... [2022-11-02 20:16:17,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7601884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:17, skipping insertion in model container [2022-11-02 20:16:17,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:16:17" (1/1) ... [2022-11-02 20:16:17,304 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:16:17,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:16:17,871 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_07e96954-b732-422d-8f1c-f004f4779c53/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal31.c[1107,1120] [2022-11-02 20:16:19,165 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:16:19,170 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:16:19,182 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_07e96954-b732-422d-8f1c-f004f4779c53/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal31.c[1107,1120] [2022-11-02 20:16:19,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:16:19,987 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:16:19,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:19 WrapperNode [2022-11-02 20:16:19,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:16:19,989 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:16:19,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:16:19,990 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:16:19,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:19" (1/1) ... [2022-11-02 20:16:20,125 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:19" (1/1) ... [2022-11-02 20:16:20,537 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 12337 [2022-11-02 20:16:20,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:16:20,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:16:20,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:16:20,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:16:20,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:19" (1/1) ... [2022-11-02 20:16:20,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:19" (1/1) ... [2022-11-02 20:16:20,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:19" (1/1) ... [2022-11-02 20:16:20,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:19" (1/1) ... [2022-11-02 20:16:20,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:19" (1/1) ... [2022-11-02 20:16:20,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:19" (1/1) ... [2022-11-02 20:16:20,862 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:19" (1/1) ... [2022-11-02 20:16:20,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:19" (1/1) ... [2022-11-02 20:16:20,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:16:20,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:16:20,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:16:20,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:16:20,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:19" (1/1) ... [2022-11-02 20:16:20,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:16:20,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:20,972 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:20,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:16:21,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:16:21,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:16:22,748 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:16:22,750 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:16:30,074 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:16:30,098 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:16:30,098 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:16:30,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:16:30 BoogieIcfgContainer [2022-11-02 20:16:30,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:16:30,106 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:16:30,106 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:16:30,109 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:16:30,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:16:17" (1/3) ... [2022-11-02 20:16:30,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b20f0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:16:30, skipping insertion in model container [2022-11-02 20:16:30,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:19" (2/3) ... [2022-11-02 20:16:30,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b20f0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:16:30, skipping insertion in model container [2022-11-02 20:16:30,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:16:30" (3/3) ... [2022-11-02 20:16:30,113 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal31.c [2022-11-02 20:16:30,133 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:16:30,133 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:16:30,234 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:16:30,242 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;@64c00c83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:16:30,242 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:16:30,252 INFO L276 IsEmpty]: Start isEmpty. Operand has 1017 states, 1015 states have (on average 1.4995073891625617) internal successors, (1522), 1016 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:30,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:16:30,258 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:16:30,259 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:30,260 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:16:30,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:30,267 INFO L85 PathProgramCache]: Analyzing trace with hash -332259343, now seen corresponding path program 1 times [2022-11-02 20:16:30,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:16:30,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318929159] [2022-11-02 20:16:30,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:30,283 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:16:30,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:16:30,291 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:16:30,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-02 20:16:32,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:32,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:16:32,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:16:32,366 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 20:16:32,367 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:16:32,368 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:16:32,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318929159] [2022-11-02 20:16:32,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318929159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:32,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:32,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:16:32,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895362711] [2022-11-02 20:16:32,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:32,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:16:32,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:16:32,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:16:32,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:16:32,418 INFO L87 Difference]: Start difference. First operand has 1017 states, 1015 states have (on average 1.4995073891625617) internal successors, (1522), 1016 states have internal predecessors, (1522), 0 states have call successors, (0), 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 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:33,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:33,346 INFO L93 Difference]: Finished difference Result 4049 states and 6071 transitions. [2022-11-02 20:16:33,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:16:33,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-02 20:16:33,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:16:33,372 INFO L225 Difference]: With dead ends: 4049 [2022-11-02 20:16:33,373 INFO L226 Difference]: Without dead ends: 3034 [2022-11-02 20:16:33,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 20:16:33,383 INFO L413 NwaCegarLoop]: 1498 mSDtfsCounter, 4535 mSDsluCounter, 4501 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4535 SdHoareTripleChecker+Valid, 5999 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:16:33,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4535 Valid, 5999 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-02 20:16:33,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3034 states. [2022-11-02 20:16:33,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3034 to 1015. [2022-11-02 20:16:33,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 1014 states have (on average 1.4970414201183433) internal successors, (1518), 1014 states have internal predecessors, (1518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:33,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1518 transitions. [2022-11-02 20:16:33,476 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1518 transitions. Word has length 9 [2022-11-02 20:16:33,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:16:33,476 INFO L495 AbstractCegarLoop]: Abstraction has 1015 states and 1518 transitions. [2022-11-02 20:16:33,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:33,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1518 transitions. [2022-11-02 20:16:33,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:16:33,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:16:33,478 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:33,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:33,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:16:33,692 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:16:33,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:33,693 INFO L85 PathProgramCache]: Analyzing trace with hash -275001041, now seen corresponding path program 1 times [2022-11-02 20:16:33,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:16:33,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [713225537] [2022-11-02 20:16:33,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:33,694 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:16:33,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:16:33,697 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:16:33,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-02 20:16:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:35,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:16:35,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:16:35,678 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 20:16:35,678 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:16:35,679 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:16:35,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [713225537] [2022-11-02 20:16:35,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [713225537] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:35,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:35,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:16:35,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038330826] [2022-11-02 20:16:35,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:35,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:16:35,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:16:35,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:16:35,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:16:35,690 INFO L87 Difference]: Start difference. First operand 1015 states and 1518 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:36,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:36,368 INFO L93 Difference]: Finished difference Result 4045 states and 6055 transitions. [2022-11-02 20:16:36,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:16:36,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-02 20:16:36,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:16:36,378 INFO L225 Difference]: With dead ends: 4045 [2022-11-02 20:16:36,379 INFO L226 Difference]: Without dead ends: 3034 [2022-11-02 20:16:36,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 20:16:36,382 INFO L413 NwaCegarLoop]: 1500 mSDtfsCounter, 4529 mSDsluCounter, 4498 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4529 SdHoareTripleChecker+Valid, 5998 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:16:36,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4529 Valid, 5998 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 20:16:36,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3034 states. [2022-11-02 20:16:36,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3034 to 1017. [2022-11-02 20:16:36,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 1016 states have (on average 1.4960629921259843) internal successors, (1520), 1016 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:36,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1520 transitions. [2022-11-02 20:16:36,416 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1520 transitions. Word has length 9 [2022-11-02 20:16:36,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:16:36,416 INFO L495 AbstractCegarLoop]: Abstraction has 1017 states and 1520 transitions. [2022-11-02 20:16:36,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:36,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1520 transitions. [2022-11-02 20:16:36,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:16:36,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:16:36,418 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:36,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:36,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:16:36,634 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:16:36,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:36,635 INFO L85 PathProgramCache]: Analyzing trace with hash -274941459, now seen corresponding path program 1 times [2022-11-02 20:16:36,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:16:36,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2070365643] [2022-11-02 20:16:36,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:36,635 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:16:36,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:16:36,640 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:16:36,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-02 20:16:38,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:38,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-02 20:16:38,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:16:38,760 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 20:16:38,762 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:16:38,762 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:16:38,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2070365643] [2022-11-02 20:16:38,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2070365643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:38,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:38,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:16:38,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279704509] [2022-11-02 20:16:38,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:38,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:16:38,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:16:38,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:16:38,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:16:38,771 INFO L87 Difference]: Start difference. First operand 1017 states and 1520 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:40,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:40,597 INFO L93 Difference]: Finished difference Result 2029 states and 3035 transitions. [2022-11-02 20:16:40,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:16:40,598 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-02 20:16:40,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:16:40,605 INFO L225 Difference]: With dead ends: 2029 [2022-11-02 20:16:40,605 INFO L226 Difference]: Without dead ends: 2027 [2022-11-02 20:16:40,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 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 20:16:40,608 INFO L413 NwaCegarLoop]: 1470 mSDtfsCounter, 4525 mSDsluCounter, 4442 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4525 SdHoareTripleChecker+Valid, 5912 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:16:40,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4525 Valid, 5912 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-02 20:16:40,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2022-11-02 20:16:40,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 1019. [2022-11-02 20:16:40,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 1018 states have (on average 1.4950884086444007) internal successors, (1522), 1018 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:40,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1522 transitions. [2022-11-02 20:16:40,647 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1522 transitions. Word has length 9 [2022-11-02 20:16:40,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:16:40,647 INFO L495 AbstractCegarLoop]: Abstraction has 1019 states and 1522 transitions. [2022-11-02 20:16:40,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:40,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1522 transitions. [2022-11-02 20:16:40,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1019 [2022-11-02 20:16:40,709 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:16:40,711 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:16:40,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:40,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:16:40,926 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:16:40,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:40,927 INFO L85 PathProgramCache]: Analyzing trace with hash 447482095, now seen corresponding path program 1 times [2022-11-02 20:16:40,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:16:40,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571300385] [2022-11-02 20:16:40,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:40,944 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:16:40,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:16:40,945 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:16:40,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-02 20:16:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:46,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 9724 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-02 20:16:46,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:16:46,426 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:46,427 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:16:46,427 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:16:46,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571300385] [2022-11-02 20:16:46,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1571300385] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:46,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:46,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:16:46,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671989508] [2022-11-02 20:16:46,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:46,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:16:46,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:16:46,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:16:46,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:16:46,432 INFO L87 Difference]: Start difference. First operand 1019 states and 1522 transitions. Second operand has 6 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:47,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:47,391 INFO L93 Difference]: Finished difference Result 4052 states and 6062 transitions. [2022-11-02 20:16:47,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:16:47,393 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 0 states have call successors, (0), 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 1018 [2022-11-02 20:16:47,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:16:47,402 INFO L225 Difference]: With dead ends: 4052 [2022-11-02 20:16:47,402 INFO L226 Difference]: Without dead ends: 3041 [2022-11-02 20:16:47,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1021 GetRequests, 1013 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:16:47,406 INFO L413 NwaCegarLoop]: 1504 mSDtfsCounter, 10564 mSDsluCounter, 4509 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10564 SdHoareTripleChecker+Valid, 6013 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:16:47,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10564 Valid, 6013 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-02 20:16:47,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3041 states. [2022-11-02 20:16:47,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3041 to 1021. [2022-11-02 20:16:47,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 1020 states have (on average 1.4941176470588236) internal successors, (1524), 1020 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:47,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1524 transitions. [2022-11-02 20:16:47,445 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1524 transitions. Word has length 1018 [2022-11-02 20:16:47,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:16:47,446 INFO L495 AbstractCegarLoop]: Abstraction has 1021 states and 1524 transitions. [2022-11-02 20:16:47,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:47,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1524 transitions. [2022-11-02 20:16:47,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1019 [2022-11-02 20:16:47,489 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:16:47,490 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:16:47,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:47,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:16:47,708 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:16:47,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:47,708 INFO L85 PathProgramCache]: Analyzing trace with hash -453745295, now seen corresponding path program 1 times [2022-11-02 20:16:47,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:16:47,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [693214389] [2022-11-02 20:16:47,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:47,726 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:16:47,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:16:47,727 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:16:47,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-02 20:16:52,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:52,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 9724 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-02 20:16:52,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:16:52,837 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:52,838 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:16:52,838 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:16:52,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [693214389] [2022-11-02 20:16:52,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [693214389] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:52,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:52,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:16:52,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658104639] [2022-11-02 20:16:52,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:52,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:16:52,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:16:52,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:16:52,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:16:52,843 INFO L87 Difference]: Start difference. First operand 1021 states and 1524 transitions. Second operand has 6 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:53,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:53,853 INFO L93 Difference]: Finished difference Result 4049 states and 6057 transitions. [2022-11-02 20:16:53,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:16:53,854 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 0 states have call successors, (0), 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 1018 [2022-11-02 20:16:53,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:16:53,863 INFO L225 Difference]: With dead ends: 4049 [2022-11-02 20:16:53,863 INFO L226 Difference]: Without dead ends: 3036 [2022-11-02 20:16:53,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1022 GetRequests, 1013 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:16:53,866 INFO L413 NwaCegarLoop]: 1503 mSDtfsCounter, 10518 mSDsluCounter, 4479 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10518 SdHoareTripleChecker+Valid, 5982 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:16:53,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10518 Valid, 5982 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-02 20:16:53,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3036 states. [2022-11-02 20:16:53,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3036 to 1025. [2022-11-02 20:16:53,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 1024 states have (on average 1.4931640625) internal successors, (1529), 1024 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:53,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1529 transitions. [2022-11-02 20:16:53,898 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1529 transitions. Word has length 1018 [2022-11-02 20:16:53,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:16:53,899 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1529 transitions. [2022-11-02 20:16:53,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:53,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1529 transitions. [2022-11-02 20:16:53,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1019 [2022-11-02 20:16:53,909 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:16:53,910 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:16:53,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-11-02 20:16:54,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:16:54,131 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:16:54,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:54,132 INFO L85 PathProgramCache]: Analyzing trace with hash -78425357, now seen corresponding path program 1 times [2022-11-02 20:16:54,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:16:54,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [491923799] [2022-11-02 20:16:54,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:54,146 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:16:54,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:16:54,147 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:16:54,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-02 20:16:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:58,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 9724 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-02 20:16:58,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:16:58,655 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:58,655 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:16:58,656 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:16:58,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [491923799] [2022-11-02 20:16:58,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [491923799] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:58,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:58,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:16:58,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070918571] [2022-11-02 20:16:58,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:58,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:16:58,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:16:58,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:16:58,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:16:58,660 INFO L87 Difference]: Start difference. First operand 1025 states and 1529 transitions. Second operand has 6 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:59,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:59,598 INFO L93 Difference]: Finished difference Result 4055 states and 6063 transitions. [2022-11-02 20:16:59,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:16:59,599 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 0 states have call successors, (0), 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 1018 [2022-11-02 20:16:59,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:16:59,610 INFO L225 Difference]: With dead ends: 4055 [2022-11-02 20:16:59,611 INFO L226 Difference]: Without dead ends: 3038 [2022-11-02 20:16:59,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1022 GetRequests, 1013 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:16:59,620 INFO L413 NwaCegarLoop]: 1504 mSDtfsCounter, 10512 mSDsluCounter, 4476 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10512 SdHoareTripleChecker+Valid, 5980 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:16:59,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10512 Valid, 5980 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-02 20:16:59,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3038 states. [2022-11-02 20:16:59,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3038 to 1027. [2022-11-02 20:16:59,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1026 states have (on average 1.4922027290448343) internal successors, (1531), 1026 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:59,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1531 transitions. [2022-11-02 20:16:59,665 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1531 transitions. Word has length 1018 [2022-11-02 20:16:59,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:16:59,666 INFO L495 AbstractCegarLoop]: Abstraction has 1027 states and 1531 transitions. [2022-11-02 20:16:59,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:59,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1531 transitions. [2022-11-02 20:16:59,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1019 [2022-11-02 20:16:59,677 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:16:59,678 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:16:59,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:59,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:16:59,895 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:16:59,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:59,896 INFO L85 PathProgramCache]: Analyzing trace with hash -936134411, now seen corresponding path program 1 times [2022-11-02 20:16:59,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:16:59,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [428384374] [2022-11-02 20:16:59,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:59,911 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:16:59,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:16:59,912 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:16:59,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-02 20:17:04,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:04,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 9724 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-02 20:17:04,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:17:04,615 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:17:04,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:17:04,616 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:17:04,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [428384374] [2022-11-02 20:17:04,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [428384374] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:04,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:04,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:17:04,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603634639] [2022-11-02 20:17:04,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:04,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:17:04,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:17:04,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:17:04,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:17:04,620 INFO L87 Difference]: Start difference. First operand 1027 states and 1531 transitions. Second operand has 7 states, 7 states have (on average 145.42857142857142) internal successors, (1018), 7 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:17:06,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:17:06,509 INFO L93 Difference]: Finished difference Result 4078 states and 6091 transitions. [2022-11-02 20:17:06,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:17:06,510 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 145.42857142857142) internal successors, (1018), 7 states have internal predecessors, (1018), 0 states have call successors, (0), 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 1018 [2022-11-02 20:17:06,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:17:06,521 INFO L225 Difference]: With dead ends: 4078 [2022-11-02 20:17:06,521 INFO L226 Difference]: Without dead ends: 3059 [2022-11-02 20:17:06,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1026 GetRequests, 1012 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2022-11-02 20:17:06,524 INFO L413 NwaCegarLoop]: 1474 mSDtfsCounter, 12042 mSDsluCounter, 7307 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12042 SdHoareTripleChecker+Valid, 8781 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:17:06,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12042 Valid, 8781 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-02 20:17:06,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3059 states. [2022-11-02 20:17:06,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3059 to 1029. [2022-11-02 20:17:06,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1029 states, 1028 states have (on average 1.4912451361867705) internal successors, (1533), 1028 states have internal predecessors, (1533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:17:06,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1533 transitions. [2022-11-02 20:17:06,561 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1533 transitions. Word has length 1018 [2022-11-02 20:17:06,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:17:06,562 INFO L495 AbstractCegarLoop]: Abstraction has 1029 states and 1533 transitions. [2022-11-02 20:17:06,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 145.42857142857142) internal successors, (1018), 7 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:17:06,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1533 transitions. [2022-11-02 20:17:06,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1019 [2022-11-02 20:17:06,572 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:17:06,573 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:06,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:17:06,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:17:06,799 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:17:06,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:06,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1768310921, now seen corresponding path program 1 times [2022-11-02 20:17:06,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:17:06,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152652951] [2022-11-02 20:17:06,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:06,806 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:17:06,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:17:06,807 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:17:06,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e96954-b732-422d-8f1c-f004f4779c53/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-02 20:17:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:10,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 9724 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 20:17:11,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:17:11,242 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:17:11,242 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:17:11,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:17:11,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152652951] [2022-11-02 20:17:11,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152652951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:11,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:11,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:17:11,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249953798] [2022-11-02 20:17:11,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:11,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:17:11,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:17:11,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:17:11,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:17:11,247 INFO L87 Difference]: Start difference. First operand 1029 states and 1533 transitions. Second operand has 6 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)