./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_field5.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_76fd9ef3-6071-410d-a16e-e65d2b958924/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76fd9ef3-6071-410d-a16e-e65d2b958924/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76fd9ef3-6071-410d-a16e-e65d2b958924/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76fd9ef3-6071-410d-a16e-e65d2b958924/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_field5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76fd9ef3-6071-410d-a16e-e65d2b958924/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76fd9ef3-6071-410d-a16e-e65d2b958924/bin/uautomizer-TMbwUNV5ro --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 a7ccb7c6b48da935b39aa5f49f57306470640cd7dc18b878a3c9befea1359b2a --- 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-8393723 [2022-11-18 18:47:55,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:47:55,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:47:55,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:47:55,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:47:55,610 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:47:55,611 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:47:55,612 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:47:55,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:47:55,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:47:55,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:47:55,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:47:55,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:47:55,618 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:47:55,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:47:55,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:47:55,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:47:55,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:47:55,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:47:55,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:47:55,648 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:47:55,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:47:55,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:47:55,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:47:55,659 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:47:55,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:47:55,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:47:55,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:47:55,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:47:55,669 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:47:55,669 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:47:55,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:47:55,672 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:47:55,673 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:47:55,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:47:55,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:47:55,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:47:55,676 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:47:55,676 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:47:55,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:47:55,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:47:55,678 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76fd9ef3-6071-410d-a16e-e65d2b958924/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 18:47:55,722 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:47:55,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:47:55,723 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:47:55,723 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:47:55,724 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:47:55,724 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:47:55,725 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:47:55,725 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:47:55,725 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:47:55,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:47:55,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:47:55,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:47:55,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:47:55,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:47:55,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:47:55,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:47:55,728 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:47:55,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:47:55,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:47:55,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:47:55,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:47:55,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:47:55,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:47:55,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:47:55,730 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:47:55,730 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:47:55,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:47:55,732 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:47:55,732 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:47:55,732 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:47:55,733 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_76fd9ef3-6071-410d-a16e-e65d2b958924/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76fd9ef3-6071-410d-a16e-e65d2b958924/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7ccb7c6b48da935b39aa5f49f57306470640cd7dc18b878a3c9befea1359b2a [2022-11-18 18:47:56,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:47:56,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:47:56,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:47:56,039 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:47:56,040 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:47:56,041 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76fd9ef3-6071-410d-a16e-e65d2b958924/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_field5.c [2022-11-18 18:47:56,121 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76fd9ef3-6071-410d-a16e-e65d2b958924/bin/uautomizer-TMbwUNV5ro/data/cb2894f60/15f64c99924743e49df74580872be09c/FLAG88d105aba [2022-11-18 18:47:57,036 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:47:57,037 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76fd9ef3-6071-410d-a16e-e65d2b958924/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_field5.c [2022-11-18 18:47:57,074 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76fd9ef3-6071-410d-a16e-e65d2b958924/bin/uautomizer-TMbwUNV5ro/data/cb2894f60/15f64c99924743e49df74580872be09c/FLAG88d105aba [2022-11-18 18:47:57,496 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76fd9ef3-6071-410d-a16e-e65d2b958924/bin/uautomizer-TMbwUNV5ro/data/cb2894f60/15f64c99924743e49df74580872be09c [2022-11-18 18:47:57,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:47:57,502 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:47:57,504 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:47:57,504 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:47:57,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:47:57,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:47:57" (1/1) ... [2022-11-18 18:47:57,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@770b2431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:57, skipping insertion in model container [2022-11-18 18:47:57,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:47:57" (1/1) ... [2022-11-18 18:47:57,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:47:57,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:47:58,056 WARN L234 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_76fd9ef3-6071-410d-a16e-e65d2b958924/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_field5.c[1107,1120] [2022-11-18 18:47:58,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:47:58,971 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:47:58,984 WARN L234 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_76fd9ef3-6071-410d-a16e-e65d2b958924/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_field5.c[1107,1120] [2022-11-18 18:47:59,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:47:59,530 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:47:59,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:59 WrapperNode [2022-11-18 18:47:59,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:47:59,533 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:47:59,533 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:47:59,534 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:47:59,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:59" (1/1) ... [2022-11-18 18:47:59,655 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:59" (1/1) ... [2022-11-18 18:48:00,365 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 12357 [2022-11-18 18:48:00,365 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:48:00,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:48:00,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:48:00,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:48:00,376 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:59" (1/1) ... [2022-11-18 18:48:00,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:59" (1/1) ... [2022-11-18 18:48:00,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:59" (1/1) ... [2022-11-18 18:48:00,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:59" (1/1) ... [2022-11-18 18:48:00,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:59" (1/1) ... [2022-11-18 18:48:00,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:59" (1/1) ... [2022-11-18 18:48:00,805 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:59" (1/1) ... [2022-11-18 18:48:00,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:59" (1/1) ... [2022-11-18 18:48:00,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:48:00,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:48:00,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:48:00,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:48:00,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:59" (1/1) ... [2022-11-18 18:48:00,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:48:00,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76fd9ef3-6071-410d-a16e-e65d2b958924/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:48:00,973 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76fd9ef3-6071-410d-a16e-e65d2b958924/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:48:00,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76fd9ef3-6071-410d-a16e-e65d2b958924/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:48:01,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:48:01,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:48:02,503 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:48:02,505 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:48:10,054 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:48:10,080 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:48:10,081 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 18:48:10,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:48:10 BoogieIcfgContainer [2022-11-18 18:48:10,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:48:10,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:48:10,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:48:10,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:48:10,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:47:57" (1/3) ... [2022-11-18 18:48:10,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9baa6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:48:10, skipping insertion in model container [2022-11-18 18:48:10,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:59" (2/3) ... [2022-11-18 18:48:10,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9baa6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:48:10, skipping insertion in model container [2022-11-18 18:48:10,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:48:10" (3/3) ... [2022-11-18 18:48:10,097 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_field5.c [2022-11-18 18:48:10,117 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:48:10,118 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 18:48:10,231 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:48:10,241 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;@6e5764c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:48:10,242 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 18:48:10,255 INFO L276 IsEmpty]: Start isEmpty. Operand has 1133 states, 1131 states have (on average 1.664898320070734) internal successors, (1883), 1132 states have internal predecessors, (1883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:10,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-18 18:48:10,263 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:48:10,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:48:10,264 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:48:10,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:10,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1030899630, now seen corresponding path program 1 times [2022-11-18 18:48:10,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:10,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957412113] [2022-11-18 18:48:10,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:10,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:17,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:17,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:17,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957412113] [2022-11-18 18:48:17,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957412113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:17,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:17,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:48:17,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374261836] [2022-11-18 18:48:17,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:17,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:48:17,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:17,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:48:17,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:48:17,117 INFO L87 Difference]: Start difference. First operand has 1133 states, 1131 states have (on average 1.664898320070734) internal successors, (1883), 1132 states have internal predecessors, (1883), 0 states have call successors, (0), 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 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:17,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:48:17,402 INFO L93 Difference]: Finished difference Result 3472 states and 5782 transitions. [2022-11-18 18:48:17,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:48:17,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2022-11-18 18:48:17,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:48:17,432 INFO L225 Difference]: With dead ends: 3472 [2022-11-18 18:48:17,432 INFO L226 Difference]: Without dead ends: 2341 [2022-11-18 18:48:17,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:48:17,448 INFO L413 NwaCegarLoop]: 2020 mSDtfsCounter, 5607 mSDsluCounter, 2158 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5607 SdHoareTripleChecker+Valid, 4178 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:48:17,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5607 Valid, 4178 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:48:17,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2022-11-18 18:48:17,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 1131. [2022-11-18 18:48:17,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1131 states, 1130 states have (on average 1.6628318584070796) internal successors, (1879), 1130 states have internal predecessors, (1879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:17,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 1879 transitions. [2022-11-18 18:48:17,576 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 1879 transitions. Word has length 63 [2022-11-18 18:48:17,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:48:17,577 INFO L495 AbstractCegarLoop]: Abstraction has 1131 states and 1879 transitions. [2022-11-18 18:48:17,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:17,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 1879 transitions. [2022-11-18 18:48:17,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-18 18:48:17,584 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:48:17,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:48:17,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:48:17,585 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:48:17,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:17,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1894842754, now seen corresponding path program 1 times [2022-11-18 18:48:17,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:17,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753296089] [2022-11-18 18:48:17,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:17,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:32,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:32,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:32,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753296089] [2022-11-18 18:50:32,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753296089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:32,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:32,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:50:32,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862524572] [2022-11-18 18:50:32,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:32,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:50:32,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:32,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:50:32,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:50:32,090 INFO L87 Difference]: Start difference. First operand 1131 states and 1879 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:42,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:50:42,238 INFO L93 Difference]: Finished difference Result 7270 states and 11893 transitions. [2022-11-18 18:50:42,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:50:42,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-11-18 18:50:42,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:50:42,256 INFO L225 Difference]: With dead ends: 7270 [2022-11-18 18:50:42,256 INFO L226 Difference]: Without dead ends: 4495 [2022-11-18 18:50:42,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:50:42,261 INFO L413 NwaCegarLoop]: 2376 mSDtfsCounter, 10258 mSDsluCounter, 5289 mSDsCounter, 0 mSdLazyCounter, 2772 mSolverCounterSat, 584 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10258 SdHoareTripleChecker+Valid, 7665 SdHoareTripleChecker+Invalid, 3356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 584 IncrementalHoareTripleChecker+Valid, 2772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-18 18:50:42,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10258 Valid, 7665 Invalid, 3356 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [584 Valid, 2772 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2022-11-18 18:50:42,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4495 states. [2022-11-18 18:50:42,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4495 to 1151. [2022-11-18 18:50:42,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1151 states, 1150 states have (on average 1.6617391304347826) internal successors, (1911), 1150 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:42,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1151 states to 1151 states and 1911 transitions. [2022-11-18 18:50:42,316 INFO L78 Accepts]: Start accepts. Automaton has 1151 states and 1911 transitions. Word has length 64 [2022-11-18 18:50:42,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:50:42,317 INFO L495 AbstractCegarLoop]: Abstraction has 1151 states and 1911 transitions. [2022-11-18 18:50:42,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:42,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1151 states and 1911 transitions. [2022-11-18 18:50:42,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-18 18:50:42,319 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:50:42,319 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:42,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:50:42,319 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:50:42,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:42,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1867720426, now seen corresponding path program 1 times [2022-11-18 18:50:42,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:42,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826130125] [2022-11-18 18:50:42,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:42,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:54:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:54:30,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:54:30,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:54:30,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826130125] [2022-11-18 18:54:30,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826130125] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:54:30,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:54:30,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:54:30,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472994801] [2022-11-18 18:54:30,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:54:30,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:54:30,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:54:30,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:54:30,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:54:30,466 INFO L87 Difference]: Start difference. First operand 1151 states and 1911 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:54:40,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:54:44,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:54:44,323 INFO L93 Difference]: Finished difference Result 5618 states and 9337 transitions. [2022-11-18 18:54:44,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:54:44,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2022-11-18 18:54:44,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:54:44,345 INFO L225 Difference]: With dead ends: 5618 [2022-11-18 18:54:44,345 INFO L226 Difference]: Without dead ends: 4489 [2022-11-18 18:54:44,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:54:44,354 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 7402 mSDsluCounter, 4049 mSDsCounter, 0 mSdLazyCounter, 6549 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7402 SdHoareTripleChecker+Valid, 4653 SdHoareTripleChecker+Invalid, 6553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-11-18 18:54:44,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7402 Valid, 4653 Invalid, 6553 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 6549 Invalid, 0 Unknown, 0 Unchecked, 13.6s Time] [2022-11-18 18:54:44,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4489 states. [2022-11-18 18:54:44,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4489 to 1157. [2022-11-18 18:54:44,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1156 states have (on average 1.6608996539792387) internal successors, (1920), 1156 states have internal predecessors, (1920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:54:44,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1920 transitions. [2022-11-18 18:54:44,408 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1920 transitions. Word has length 65 [2022-11-18 18:54:44,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:54:44,409 INFO L495 AbstractCegarLoop]: Abstraction has 1157 states and 1920 transitions. [2022-11-18 18:54:44,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:54:44,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1920 transitions. [2022-11-18 18:54:44,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-18 18:54:44,411 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:54:44,411 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:54:44,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:54:44,412 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:54:44,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:54:44,412 INFO L85 PathProgramCache]: Analyzing trace with hash -886204210, now seen corresponding path program 1 times [2022-11-18 18:54:44,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:54:44,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689257462] [2022-11-18 18:54:44,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:54:44,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:56:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:56:57,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:56:57,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:56:57,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689257462] [2022-11-18 18:56:57,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689257462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:56:57,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:56:57,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:56:57,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313188428] [2022-11-18 18:56:57,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:56:57,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:56:57,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:56:57,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:56:57,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:56:57,655 INFO L87 Difference]: Start difference. First operand 1157 states and 1920 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:57:07,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:57:07,968 INFO L93 Difference]: Finished difference Result 5635 states and 9360 transitions. [2022-11-18 18:57:07,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:57:07,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-11-18 18:57:07,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:57:07,982 INFO L225 Difference]: With dead ends: 5635 [2022-11-18 18:57:07,983 INFO L226 Difference]: Without dead ends: 4498 [2022-11-18 18:57:07,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:57:07,988 INFO L413 NwaCegarLoop]: 3512 mSDtfsCounter, 5577 mSDsluCounter, 6428 mSDsCounter, 0 mSdLazyCounter, 3179 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5577 SdHoareTripleChecker+Valid, 9940 SdHoareTripleChecker+Invalid, 3182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:57:07,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5577 Valid, 9940 Invalid, 3182 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 3179 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2022-11-18 18:57:07,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4498 states. [2022-11-18 18:57:08,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4498 to 1157. [2022-11-18 18:57:08,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1156 states have (on average 1.6600346020761245) internal successors, (1919), 1156 states have internal predecessors, (1919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:57:08,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1919 transitions. [2022-11-18 18:57:08,044 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1919 transitions. Word has length 66 [2022-11-18 18:57:08,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:57:08,045 INFO L495 AbstractCegarLoop]: Abstraction has 1157 states and 1919 transitions. [2022-11-18 18:57:08,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:57:08,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1919 transitions. [2022-11-18 18:57:08,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-18 18:57:08,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:57:08,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:57:08,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:57:08,048 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:57:08,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:57:08,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1670707758, now seen corresponding path program 1 times [2022-11-18 18:57:08,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:57:08,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922279719] [2022-11-18 18:57:08,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:57:08,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:01:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:01:51,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:01:51,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:01:51,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922279719] [2022-11-18 19:01:51,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922279719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:01:51,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:01:51,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:01:51,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607968119] [2022-11-18 19:01:51,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:01:51,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:01:51,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:01:51,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:01:51,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:01:51,319 INFO L87 Difference]: Start difference. First operand 1157 states and 1919 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:02:00,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:02:00,336 INFO L93 Difference]: Finished difference Result 5594 states and 9295 transitions. [2022-11-18 19:02:00,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:02:00,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2022-11-18 19:02:00,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:02:00,350 INFO L225 Difference]: With dead ends: 5594 [2022-11-18 19:02:00,350 INFO L226 Difference]: Without dead ends: 4465 [2022-11-18 19:02:00,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:02:00,354 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 10944 mSDsluCounter, 2860 mSDsCounter, 0 mSdLazyCounter, 4023 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10944 SdHoareTripleChecker+Valid, 3472 SdHoareTripleChecker+Invalid, 4027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-18 19:02:00,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10944 Valid, 3472 Invalid, 4027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4023 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2022-11-18 19:02:00,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4465 states. [2022-11-18 19:02:00,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4465 to 1181. [2022-11-18 19:02:00,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 1180 states have (on average 1.659322033898305) internal successors, (1958), 1180 states have internal predecessors, (1958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:02:00,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1958 transitions. [2022-11-18 19:02:00,404 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1958 transitions. Word has length 67 [2022-11-18 19:02:00,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:02:00,404 INFO L495 AbstractCegarLoop]: Abstraction has 1181 states and 1958 transitions. [2022-11-18 19:02:00,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:02:00,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1958 transitions. [2022-11-18 19:02:00,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-18 19:02:00,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:02:00,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:02:00,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:02:00,406 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:02:00,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:02:00,407 INFO L85 PathProgramCache]: Analyzing trace with hash -926319594, now seen corresponding path program 1 times [2022-11-18 19:02:00,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:02:00,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764948987] [2022-11-18 19:02:00,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:02:00,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms