./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R --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 022102d12c6d0c5097c2cad24d28685bf677a3959fa1edca410f13c7d5b845fd --- 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-38b53e6 [2022-11-25 17:15:09,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:15:09,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:15:09,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:15:09,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:15:09,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:15:09,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:15:09,664 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:15:09,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:15:09,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:15:09,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:15:09,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:15:09,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:15:09,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:15:09,685 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:15:09,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:15:09,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:15:09,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:15:09,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:15:09,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:15:09,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:15:09,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:15:09,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:15:09,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:15:09,717 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:15:09,718 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:15:09,718 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:15:09,719 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:15:09,719 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:15:09,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:15:09,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:15:09,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:15:09,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:15:09,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:15:09,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:15:09,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:15:09,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:15:09,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:15:09,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:15:09,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:15:09,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:15:09,743 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 17:15:09,783 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:15:09,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:15:09,785 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:15:09,785 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:15:09,786 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:15:09,786 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:15:09,787 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:15:09,787 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:15:09,787 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:15:09,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:15:09,788 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:15:09,789 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:15:09,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:15:09,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:15:09,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:15:09,790 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:15:09,790 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:15:09,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:15:09,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:15:09,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:15:09,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:15:09,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:15:09,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:15:09,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:15:09,792 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:15:09,792 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:15:09,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:15:09,792 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:15:09,793 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:15:09,793 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:15:09,794 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:15:09,794 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 022102d12c6d0c5097c2cad24d28685bf677a3959fa1edca410f13c7d5b845fd [2022-11-25 17:15:10,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:15:10,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:15:10,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:15:10,128 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:15:10,128 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:15:10,129 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c [2022-11-25 17:15:13,264 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:15:13,619 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:15:13,621 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c [2022-11-25 17:15:13,644 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/data/3b81538c8/d39963e32e344119848300ceb2312ef7/FLAGf5dc0148b [2022-11-25 17:15:13,663 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/data/3b81538c8/d39963e32e344119848300ceb2312ef7 [2022-11-25 17:15:13,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:15:13,670 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:15:13,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:15:13,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:15:13,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:15:13,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:15:13" (1/1) ... [2022-11-25 17:15:13,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c588519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:13, skipping insertion in model container [2022-11-25 17:15:13,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:15:13" (1/1) ... [2022-11-25 17:15:13,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:15:13,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:15:13,973 WARN L237 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_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c[1107,1120] [2022-11-25 17:15:14,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:15:14,401 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:15:14,412 WARN L237 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_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c[1107,1120] [2022-11-25 17:15:14,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:15:14,734 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:15:14,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:14 WrapperNode [2022-11-25 17:15:14,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:15:14,737 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:15:14,737 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:15:14,737 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:15:14,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:14" (1/1) ... [2022-11-25 17:15:14,795 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:14" (1/1) ... [2022-11-25 17:15:14,933 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1795 [2022-11-25 17:15:14,933 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:15:14,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:15:14,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:15:14,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:15:14,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:14" (1/1) ... [2022-11-25 17:15:14,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:14" (1/1) ... [2022-11-25 17:15:14,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:14" (1/1) ... [2022-11-25 17:15:14,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:14" (1/1) ... [2022-11-25 17:15:15,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:14" (1/1) ... [2022-11-25 17:15:15,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:14" (1/1) ... [2022-11-25 17:15:15,052 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:14" (1/1) ... [2022-11-25 17:15:15,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:14" (1/1) ... [2022-11-25 17:15:15,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:15:15,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:15:15,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:15:15,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:15:15,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:14" (1/1) ... [2022-11-25 17:15:15,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:15:15,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:15,116 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:15,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:15:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:15:15,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:15:15,671 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:15:15,673 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:17:39,507 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:17:39,516 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:17:39,516 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:17:39,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:17:39 BoogieIcfgContainer [2022-11-25 17:17:39,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:17:39,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:17:39,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:17:39,537 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:17:39,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:15:13" (1/3) ... [2022-11-25 17:17:39,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32375061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:17:39, skipping insertion in model container [2022-11-25 17:17:39,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:14" (2/3) ... [2022-11-25 17:17:39,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32375061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:17:39, skipping insertion in model container [2022-11-25 17:17:39,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:17:39" (3/3) ... [2022-11-25 17:17:39,541 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsa16a_p5.c [2022-11-25 17:17:39,595 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:17:39,595 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:17:39,657 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:17:39,669 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;@6ed0a873, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:17:39,670 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:17:39,675 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:17:39,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 17:17:39,684 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:17:39,685 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:17:39,686 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:17:39,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:17:39,696 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 17:17:39,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:17:39,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203071617] [2022-11-25 17:17:39,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:17:39,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:17:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:17:40,198 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:17:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:17:40,418 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:17:40,421 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:17:40,423 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 17:17:40,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:17:40,431 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 17:17:40,437 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:17:40,467 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-25 17:17:40,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:17:40 BoogieIcfgContainer [2022-11-25 17:17:40,480 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:17:40,481 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:17:40,481 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:17:40,481 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:17:40,482 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:17:39" (3/4) ... [2022-11-25 17:17:40,486 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:17:40,486 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:17:40,488 INFO L158 Benchmark]: Toolchain (without parser) took 146818.01ms. Allocated memory was 136.3MB in the beginning and 866.1MB in the end (delta: 729.8MB). Free memory was 90.4MB in the beginning and 739.5MB in the end (delta: -649.1MB). Peak memory consumption was 83.3MB. Max. memory is 16.1GB. [2022-11-25 17:17:40,489 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 136.3MB. Free memory is still 101.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:17:40,489 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1062.26ms. Allocated memory was 136.3MB in the beginning and 199.2MB in the end (delta: 62.9MB). Free memory was 89.9MB in the beginning and 152.2MB in the end (delta: -62.4MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. [2022-11-25 17:17:40,490 INFO L158 Benchmark]: Boogie Procedure Inliner took 196.29ms. Allocated memory is still 199.2MB. Free memory was 152.2MB in the beginning and 133.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 17:17:40,491 INFO L158 Benchmark]: Boogie Preprocessor took 142.22ms. Allocated memory is still 199.2MB. Free memory was 133.4MB in the beginning and 122.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 17:17:40,492 INFO L158 Benchmark]: RCFGBuilder took 144452.46ms. Allocated memory was 199.2MB in the beginning and 866.1MB in the end (delta: 666.9MB). Free memory was 122.9MB in the beginning and 791.9MB in the end (delta: -669.0MB). Peak memory consumption was 505.4MB. Max. memory is 16.1GB. [2022-11-25 17:17:40,493 INFO L158 Benchmark]: TraceAbstraction took 948.02ms. Allocated memory is still 866.1MB. Free memory was 790.9MB in the beginning and 740.6MB in the end (delta: 50.3MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2022-11-25 17:17:40,493 INFO L158 Benchmark]: Witness Printer took 5.75ms. Allocated memory is still 866.1MB. Free memory was 740.6MB in the beginning and 739.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:17:40,498 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 136.3MB. Free memory is still 101.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1062.26ms. Allocated memory was 136.3MB in the beginning and 199.2MB in the end (delta: 62.9MB). Free memory was 89.9MB in the beginning and 152.2MB in the end (delta: -62.4MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 196.29ms. Allocated memory is still 199.2MB. Free memory was 152.2MB in the beginning and 133.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 142.22ms. Allocated memory is still 199.2MB. Free memory was 133.4MB in the beginning and 122.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 144452.46ms. Allocated memory was 199.2MB in the beginning and 866.1MB in the end (delta: 666.9MB). Free memory was 122.9MB in the beginning and 791.9MB in the end (delta: -669.0MB). Peak memory consumption was 505.4MB. Max. memory is 16.1GB. * TraceAbstraction took 948.02ms. Allocated memory is still 866.1MB. Free memory was 790.9MB in the beginning and 740.6MB in the end (delta: 50.3MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * Witness Printer took 5.75ms. Allocated memory is still 866.1MB. Free memory was 740.6MB in the beginning and 739.5MB in the end (delta: 1.0MB). 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 192, overapproximation of bitwiseOr at line 200, overapproximation of bitwiseAnd at line 182. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 16); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (16 - 1); [L31] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 3); [L32] const SORT_9 msb_SORT_9 = (SORT_9)1 << (3 - 1); [L34] const SORT_44 mask_SORT_44 = (SORT_44)-1 >> (sizeof(SORT_44) * 8 - 12); [L35] const SORT_44 msb_SORT_44 = (SORT_44)1 << (12 - 1); [L37] const SORT_98 mask_SORT_98 = (SORT_98)-1 >> (sizeof(SORT_98) * 8 - 17); [L38] const SORT_98 msb_SORT_98 = (SORT_98)1 << (17 - 1); [L40] const SORT_99 mask_SORT_99 = (SORT_99)-1 >> (sizeof(SORT_99) * 8 - 5); [L41] const SORT_99 msb_SORT_99 = (SORT_99)1 << (5 - 1); [L43] const SORT_102 mask_SORT_102 = (SORT_102)-1 >> (sizeof(SORT_102) * 8 - 9); [L44] const SORT_102 msb_SORT_102 = (SORT_102)1 << (9 - 1); [L46] const SORT_104 mask_SORT_104 = (SORT_104)-1 >> (sizeof(SORT_104) * 8 - 10); [L47] const SORT_104 msb_SORT_104 = (SORT_104)1 << (10 - 1); [L49] const SORT_107 mask_SORT_107 = (SORT_107)-1 >> (sizeof(SORT_107) * 8 - 11); [L50] const SORT_107 msb_SORT_107 = (SORT_107)1 << (11 - 1); [L52] const SORT_112 mask_SORT_112 = (SORT_112)-1 >> (sizeof(SORT_112) * 8 - 13); [L53] const SORT_112 msb_SORT_112 = (SORT_112)1 << (13 - 1); [L55] const SORT_115 mask_SORT_115 = (SORT_115)-1 >> (sizeof(SORT_115) * 8 - 14); [L56] const SORT_115 msb_SORT_115 = (SORT_115)1 << (14 - 1); [L58] const SORT_118 mask_SORT_118 = (SORT_118)-1 >> (sizeof(SORT_118) * 8 - 15); [L59] const SORT_118 msb_SORT_118 = (SORT_118)1 << (15 - 1); [L61] const SORT_151 mask_SORT_151 = (SORT_151)-1 >> (sizeof(SORT_151) * 8 - 7); [L62] const SORT_151 msb_SORT_151 = (SORT_151)1 << (7 - 1); [L64] const SORT_211 mask_SORT_211 = (SORT_211)-1 >> (sizeof(SORT_211) * 8 - 2); [L65] const SORT_211 msb_SORT_211 = (SORT_211)1 << (2 - 1); [L67] const SORT_370 mask_SORT_370 = (SORT_370)-1 >> (sizeof(SORT_370) * 8 - 4); [L68] const SORT_370 msb_SORT_370 = (SORT_370)1 << (4 - 1); [L70] const SORT_373 mask_SORT_373 = (SORT_373)-1 >> (sizeof(SORT_373) * 8 - 6); [L71] const SORT_373 msb_SORT_373 = (SORT_373)1 << (6 - 1); [L73] const SORT_376 mask_SORT_376 = (SORT_376)-1 >> (sizeof(SORT_376) * 8 - 8); [L74] const SORT_376 msb_SORT_376 = (SORT_376)1 << (8 - 1); [L76] const SORT_3 var_6 = 0; [L77] const SORT_9 var_11 = 2; [L78] const SORT_9 var_13 = 0; [L79] const SORT_1 var_19 = 0; [L80] const SORT_1 var_34 = 1; [L81] const SORT_44 var_45 = 0; [L82] const SORT_9 var_61 = 1; [L83] const SORT_9 var_66 = 4; [L84] const SORT_9 var_68 = 5; [L85] const SORT_9 var_72 = 3; [L86] const SORT_99 var_100 = 0; [L87] const SORT_151 var_153 = 5; [L88] const SORT_151 var_157 = 4; [L89] const SORT_151 var_161 = 3; [L90] const SORT_151 var_165 = 2; [L91] const SORT_151 var_169 = 1; [L92] const SORT_151 var_173 = 0; [L93] const SORT_44 var_196 = 2; [L94] const SORT_211 var_213 = 0; [L95] const SORT_3 var_220 = 65535; [L97] SORT_1 input_2; [L98] SORT_3 input_4; [L99] SORT_3 input_5; [L100] SORT_3 input_208; [L101] SORT_3 input_209; [L102] SORT_3 input_210; [L103] SORT_3 input_219; [L104] SORT_3 input_228; [L105] SORT_3 input_229; [L106] SORT_3 input_230; [L107] SORT_3 input_233; [L108] SORT_3 input_251; [L109] SORT_3 input_252; [L110] SORT_3 input_253; [L111] SORT_3 input_256; [L112] SORT_3 input_258; [L113] SORT_211 input_272; [L114] SORT_211 input_273; [L115] SORT_211 input_274; [L117] SORT_3 state_7 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L118] SORT_9 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L119] SORT_1 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L120] SORT_3 state_23 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L121] SORT_3 state_38 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L122] SORT_3 state_40 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L123] SORT_3 state_42 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L124] SORT_44 state_46 = __VERIFIER_nondet_ushort() & mask_SORT_44; [L125] SORT_44 state_48 = __VERIFIER_nondet_ushort() & mask_SORT_44; [L126] SORT_3 state_50 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L127] SORT_3 state_52 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L128] SORT_3 state_54 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L129] SORT_3 state_56 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L131] SORT_3 init_8_arg_1 = var_6; [L132] state_7 = init_8_arg_1 [L133] SORT_9 init_15_arg_1 = var_13; [L134] state_14 = init_15_arg_1 [L135] SORT_1 init_21_arg_1 = var_19; [L136] state_20 = init_21_arg_1 [L137] SORT_3 init_24_arg_1 = var_6; [L138] state_23 = init_24_arg_1 [L139] SORT_3 init_39_arg_1 = var_6; [L140] state_38 = init_39_arg_1 [L141] SORT_3 init_41_arg_1 = var_6; [L142] state_40 = init_41_arg_1 [L143] SORT_3 init_43_arg_1 = var_6; [L144] state_42 = init_43_arg_1 [L145] SORT_44 init_47_arg_1 = var_45; [L146] state_46 = init_47_arg_1 [L147] SORT_44 init_49_arg_1 = var_45; [L148] state_48 = init_49_arg_1 [L149] SORT_3 init_51_arg_1 = var_6; [L150] state_50 = init_51_arg_1 [L151] SORT_3 init_53_arg_1 = var_6; [L152] state_52 = init_53_arg_1 [L153] SORT_3 init_55_arg_1 = var_6; [L154] state_54 = init_55_arg_1 [L155] SORT_3 init_57_arg_1 = var_6; [L156] state_56 = init_57_arg_1 VAL [init_15_arg_1=0, init_21_arg_1=0, init_24_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_51_arg_1=0, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_8_arg_1=0, mask_SORT_1=1, mask_SORT_102=511, mask_SORT_104=1023, mask_SORT_107=2047, mask_SORT_112=8191, mask_SORT_115=16383, mask_SORT_118=32767, mask_SORT_151=127, mask_SORT_211=3, mask_SORT_3=65535, mask_SORT_370=15, mask_SORT_373=63, mask_SORT_376=255, mask_SORT_44=4095, mask_SORT_9=7, mask_SORT_98=4294967295, mask_SORT_99=31, msb_SORT_1=1, msb_SORT_102=256, msb_SORT_104=512, msb_SORT_107=1024, msb_SORT_112=4096, msb_SORT_115=8192, msb_SORT_118=16384, msb_SORT_151=64, msb_SORT_211=2, msb_SORT_3=32768, msb_SORT_370=8, msb_SORT_373=32, msb_SORT_376=128, msb_SORT_44=2048, msb_SORT_9=4, msb_SORT_98=65536, msb_SORT_99=16, state_14=0, state_20=0, state_23=0, state_38=0, state_40=0, state_42=0, state_46=0, state_48=0, state_50=0, state_52=0, state_54=0, state_56=0, state_7=0, var_100=0, var_11=2, var_13=0, var_153=5, var_157=4, var_161=3, var_165=2, var_169=1, var_173=0, var_19=0, var_196=2, var_213=0, var_220=65535, var_34=1, var_45=0, var_6=0, var_61=1, var_66=4, var_68=5, var_72=3] [L159] input_2 = __VERIFIER_nondet_uchar() [L160] input_4 = __VERIFIER_nondet_ushort() [L161] input_5 = __VERIFIER_nondet_ushort() [L162] input_208 = __VERIFIER_nondet_ushort() [L163] input_209 = __VERIFIER_nondet_ushort() [L164] input_210 = __VERIFIER_nondet_ushort() [L165] input_219 = __VERIFIER_nondet_ushort() [L166] input_228 = __VERIFIER_nondet_ushort() [L167] input_229 = __VERIFIER_nondet_ushort() [L168] input_230 = __VERIFIER_nondet_ushort() [L169] input_233 = __VERIFIER_nondet_ushort() [L170] input_251 = __VERIFIER_nondet_ushort() [L171] input_252 = __VERIFIER_nondet_ushort() [L172] input_253 = __VERIFIER_nondet_ushort() [L173] input_256 = __VERIFIER_nondet_ushort() [L174] input_258 = __VERIFIER_nondet_ushort() [L175] input_272 = __VERIFIER_nondet_uchar() [L176] input_273 = __VERIFIER_nondet_uchar() [L177] input_274 = __VERIFIER_nondet_uchar() [L180] SORT_3 var_10_arg_0 = state_7; [L181] SORT_9 var_10 = var_10_arg_0 >> 0; [L182] var_10 = var_10 & mask_SORT_9 [L183] SORT_9 var_12_arg_0 = var_10; [L184] SORT_9 var_12_arg_1 = var_11; [L185] SORT_1 var_12 = var_12_arg_0 == var_12_arg_1; [L186] SORT_9 var_16_arg_0 = state_14; [L187] SORT_1 var_16 = var_16_arg_0 >> 2; [L188] SORT_1 var_17_arg_0 = var_12; [L189] SORT_1 var_17_arg_1 = var_16; [L190] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L191] SORT_1 var_18_arg_0 = var_17; [L192] SORT_1 var_18 = ~var_18_arg_0; [L193] SORT_1 var_22_arg_0 = state_20; [L194] SORT_1 var_22 = ~var_22_arg_0; [L195] SORT_3 var_25_arg_0 = state_23; [L196] SORT_3 var_25_arg_1 = var_6; [L197] SORT_1 var_25 = var_25_arg_0 == var_25_arg_1; [L198] SORT_1 var_26_arg_0 = var_22; [L199] SORT_1 var_26_arg_1 = var_25; [L200] SORT_1 var_26 = var_26_arg_0 | var_26_arg_1; [L201] SORT_3 var_27_arg_0 = state_23; [L202] SORT_3 var_27_arg_1 = var_6; [L203] SORT_1 var_27 = var_27_arg_0 == var_27_arg_1; [L204] SORT_1 var_28_arg_0 = var_27; [L205] SORT_1 var_28 = ~var_28_arg_0; [L206] SORT_1 var_29_arg_0 = var_28; [L207] SORT_1 var_29_arg_1 = state_20; [L208] SORT_1 var_29 = var_29_arg_0 | var_29_arg_1; [L209] SORT_1 var_30_arg_0 = var_26; [L210] SORT_1 var_30_arg_1 = var_29; [L211] SORT_1 var_30 = var_30_arg_0 & var_30_arg_1; [L212] SORT_1 var_31_arg_0 = var_18; [L213] SORT_1 var_31_arg_1 = var_30; [L214] SORT_1 var_31 = var_31_arg_0 | var_31_arg_1; [L215] SORT_1 var_35_arg_0 = var_31; [L216] SORT_1 var_35 = ~var_35_arg_0; [L217] SORT_1 var_36_arg_0 = var_34; [L218] SORT_1 var_36_arg_1 = var_35; [L219] SORT_1 var_36 = var_36_arg_0 & var_36_arg_1; [L220] var_36 = var_36 & mask_SORT_1 [L221] SORT_1 bad_37_arg_0 = var_36; [L222] CALL __VERIFIER_assert(!(bad_37_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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2022-11-25 17:17:40,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/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_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R --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 022102d12c6d0c5097c2cad24d28685bf677a3959fa1edca410f13c7d5b845fd --- 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-38b53e6 [2022-11-25 17:17:43,650 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:17:43,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:17:43,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:17:43,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:17:43,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:17:43,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:17:43,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:17:43,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:17:43,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:17:43,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:17:43,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:17:43,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:17:43,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:17:43,734 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:17:43,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:17:43,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:17:43,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:17:43,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:17:43,764 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:17:43,766 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:17:43,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:17:43,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:17:43,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:17:43,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:17:43,778 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:17:43,778 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:17:43,779 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:17:43,780 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:17:43,781 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:17:43,782 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:17:43,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:17:43,791 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:17:43,792 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:17:43,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:17:43,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:17:43,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:17:43,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:17:43,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:17:43,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:17:43,825 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:17:43,827 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-25 17:17:43,873 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:17:43,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:17:43,876 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:17:43,876 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:17:43,877 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:17:43,878 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:17:43,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:17:43,879 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:17:43,879 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:17:43,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:17:43,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:17:43,881 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:17:43,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:17:43,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:17:43,882 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:17:43,882 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 17:17:43,882 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 17:17:43,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:17:43,883 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:17:43,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:17:43,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:17:43,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:17:43,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:17:43,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:17:43,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:17:43,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:17:43,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:17:43,885 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 17:17:43,886 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 17:17:43,886 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:17:43,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:17:43,886 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:17:43,887 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:17:43,887 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 17:17:43,888 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 022102d12c6d0c5097c2cad24d28685bf677a3959fa1edca410f13c7d5b845fd [2022-11-25 17:17:44,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:17:44,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:17:44,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:17:44,436 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:17:44,437 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:17:44,439 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c [2022-11-25 17:17:48,528 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:17:48,998 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:17:48,999 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c [2022-11-25 17:17:49,020 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/data/3bbe88b1a/01ea80eba3ba4e359a5b9e4b805e5129/FLAGbe9776823 [2022-11-25 17:17:49,038 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/data/3bbe88b1a/01ea80eba3ba4e359a5b9e4b805e5129 [2022-11-25 17:17:49,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:17:49,044 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:17:49,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:17:49,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:17:49,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:17:49,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:17:49" (1/1) ... [2022-11-25 17:17:49,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b06c1b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:49, skipping insertion in model container [2022-11-25 17:17:49,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:17:49" (1/1) ... [2022-11-25 17:17:49,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:17:49,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:17:49,457 WARN L237 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_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c[1107,1120] [2022-11-25 17:17:49,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:17:49,959 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:17:49,973 WARN L237 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_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c[1107,1120] [2022-11-25 17:17:50,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:17:50,196 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:17:50,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:50 WrapperNode [2022-11-25 17:17:50,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:17:50,198 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:17:50,199 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:17:50,199 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:17:50,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:50" (1/1) ... [2022-11-25 17:17:50,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:50" (1/1) ... [2022-11-25 17:17:50,383 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1795 [2022-11-25 17:17:50,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:17:50,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:17:50,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:17:50,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:17:50,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:50" (1/1) ... [2022-11-25 17:17:50,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:50" (1/1) ... [2022-11-25 17:17:50,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:50" (1/1) ... [2022-11-25 17:17:50,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:50" (1/1) ... [2022-11-25 17:17:50,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:50" (1/1) ... [2022-11-25 17:17:50,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:50" (1/1) ... [2022-11-25 17:17:50,489 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:50" (1/1) ... [2022-11-25 17:17:50,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:50" (1/1) ... [2022-11-25 17:17:50,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:17:50,558 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:17:50,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:17:50,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:17:50,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:50" (1/1) ... [2022-11-25 17:17:50,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:17:50,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:17:50,641 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:17:50,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:17:50,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:17:50,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:17:51,377 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:17:51,379 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:17:55,030 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:17:55,038 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:17:55,041 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:17:55,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:17:55 BoogieIcfgContainer [2022-11-25 17:17:55,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:17:55,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:17:55,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:17:55,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:17:55,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:17:49" (1/3) ... [2022-11-25 17:17:55,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5b577c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:17:55, skipping insertion in model container [2022-11-25 17:17:55,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:50" (2/3) ... [2022-11-25 17:17:55,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5b577c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:17:55, skipping insertion in model container [2022-11-25 17:17:55,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:17:55" (3/3) ... [2022-11-25 17:17:55,059 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsa16a_p5.c [2022-11-25 17:17:55,084 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:17:55,084 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:17:55,143 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:17:55,151 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;@1022ae96, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:17:55,152 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:17:55,157 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:17:55,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 17:17:55,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:17:55,165 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:17:55,166 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:17:55,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:17:55,177 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 17:17:55,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:17:55,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1352781602] [2022-11-25 17:17:55,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:17:55,195 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:17:55,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:17:55,202 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:17:55,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 17:17:55,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:55,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-25 17:17:55,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:17:55,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:17:55,951 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:17:55,952 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:17:55,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1352781602] [2022-11-25 17:17:55,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1352781602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:17:55,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:17:55,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:17:55,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993877114] [2022-11-25 17:17:55,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:17:55,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:17:55,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:17:56,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:17:56,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:17:56,016 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 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 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:17:56,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:17:56,419 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-25 17:17:56,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:17:56,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2022-11-25 17:17:56,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:17:56,433 INFO L225 Difference]: With dead ends: 20 [2022-11-25 17:17:56,434 INFO L226 Difference]: Without dead ends: 11 [2022-11-25 17:17:56,437 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 [2022-11-25 17:17:56,442 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:17:56,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 17:17:56,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-25 17:17:56,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-25 17:17:56,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 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) [2022-11-25 17:17:56,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-25 17:17:56,553 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-25 17:17:56,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:17:56,553 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-25 17:17:56,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:17:56,554 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-25 17:17:56,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 17:17:56,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:17:56,555 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 17:17:56,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-25 17:17:56,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:17:56,788 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:17:56,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:17:56,788 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-25 17:17:56,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:17:56,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1063786942] [2022-11-25 17:17:56,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:17:56,792 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:17:56,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:17:56,831 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:17:56,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 17:17:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:58,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 1629 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-25 17:17:58,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:17:58,345 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:17:58,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:17:58,820 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:17:58,821 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:17:58,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1063786942] [2022-11-25 17:17:58,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1063786942] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:17:58,823 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:17:58,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-25 17:17:58,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059160300] [2022-11-25 17:17:58,828 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:17:58,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:17:58,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:17:58,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:17:58,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:17:58,833 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:00,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:00,344 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-11-25 17:18:00,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:18:00,345 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 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 8 [2022-11-25 17:18:00,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:00,346 INFO L225 Difference]: With dead ends: 19 [2022-11-25 17:18:00,346 INFO L226 Difference]: Without dead ends: 17 [2022-11-25 17:18:00,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:18:00,348 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:00,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 18 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-25 17:18:00,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-25 17:18:00,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-25 17:18:00,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:00,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-25 17:18:00,355 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2022-11-25 17:18:00,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:00,356 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-25 17:18:00,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:00,357 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-25 17:18:00,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 17:18:00,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:00,358 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-25 17:18:00,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-25 17:18:00,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:18:00,581 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:18:00,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:00,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 2 times [2022-11-25 17:18:00,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:18:00,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [648941518] [2022-11-25 17:18:00,592 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:18:00,592 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:18:00,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:18:00,593 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:18:00,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-25 17:18:02,786 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:18:02,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:18:02,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 4595 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-25 17:18:02,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:18:03,605 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:03,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:18:05,597 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:05,598 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:18:05,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [648941518] [2022-11-25 17:18:05,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [648941518] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:18:05,603 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:18:05,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-25 17:18:05,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995362684] [2022-11-25 17:18:05,608 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:18:05,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 17:18:05,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:18:05,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 17:18:05,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:18:05,615 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:07,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:07,500 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2022-11-25 17:18:07,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:18:07,500 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 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 14 [2022-11-25 17:18:07,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:07,501 INFO L225 Difference]: With dead ends: 22 [2022-11-25 17:18:07,501 INFO L226 Difference]: Without dead ends: 20 [2022-11-25 17:18:07,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2022-11-25 17:18:07,503 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 19 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:07,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 24 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-25 17:18:07,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-25 17:18:07,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-11-25 17:18:07,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:07,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-25 17:18:07,511 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 14 [2022-11-25 17:18:07,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:07,512 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-25 17:18:07,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:07,513 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-25 17:18:07,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 17:18:07,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:07,514 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-11-25 17:18:07,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-11-25 17:18:07,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:18:07,727 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:18:07,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:07,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 3 times [2022-11-25 17:18:07,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:18:07,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2126756302] [2022-11-25 17:18:07,743 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 17:18:07,743 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:18:07,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:18:07,745 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:18:07,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-25 17:18:10,310 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-25 17:18:10,310 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:18:10,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 6078 conjuncts, 173 conjunts are in the unsatisfiable core [2022-11-25 17:18:10,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:18:19,174 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:19,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:23:43,458 WARN L233 SmtUtils]: Spent 1.02m on a formula simplification. DAG size of input: 2023 DAG size of output: 514 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:23:55,037 WARN L233 SmtUtils]: Spent 10.02s on a formula simplification. DAG size of input: 531 DAG size of output: 383 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:24:03,934 WARN L233 SmtUtils]: Spent 8.09s on a formula simplification. DAG size of input: 426 DAG size of output: 393 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:24:51,810 WARN L233 SmtUtils]: Spent 46.45s on a formula simplification. DAG size of input: 449 DAG size of output: 404 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:24:52,268 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:24:52,268 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:24:52,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2126756302] [2022-11-25 17:24:52,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2126756302] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:24:52,269 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:24:52,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-11-25 17:24:52,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368565932] [2022-11-25 17:24:52,270 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:24:52,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 17:24:52,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:24:52,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 17:24:52,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-25 17:24:52,272 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:57,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:24:57,603 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2022-11-25 17:24:57,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:24:57,606 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 17 [2022-11-25 17:24:57,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:24:57,607 INFO L225 Difference]: With dead ends: 25 [2022-11-25 17:24:57,607 INFO L226 Difference]: Without dead ends: 23 [2022-11-25 17:24:57,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 133.2s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2022-11-25 17:24:57,609 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 19 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-25 17:24:57,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 32 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-25 17:24:57,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-25 17:24:57,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2022-11-25 17:24:57,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:57,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2022-11-25 17:24:57,623 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 17 [2022-11-25 17:24:57,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:24:57,623 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2022-11-25 17:24:57,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:57,624 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2022-11-25 17:24:57,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 17:24:57,625 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:24:57,625 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1] [2022-11-25 17:24:57,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-11-25 17:24:57,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:24:57,831 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:24:57,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:24:57,832 INFO L85 PathProgramCache]: Analyzing trace with hash -826954269, now seen corresponding path program 4 times [2022-11-25 17:24:57,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:24:57,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [916350430] [2022-11-25 17:24:57,839 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 17:24:57,839 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:24:57,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:24:57,840 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:24:57,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-25 17:25:00,824 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 17:25:00,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:25:01,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 7561 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-25 17:25:01,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:25:01,780 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:25:01,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:25:10,761 WARN L233 SmtUtils]: Spent 6.39s on a formula simplification. DAG size of input: 158 DAG size of output: 118 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:25:10,854 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:25:10,855 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:25:10,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [916350430] [2022-11-25 17:25:10,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [916350430] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:25:10,855 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:25:10,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-11-25 17:25:10,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131586284] [2022-11-25 17:25:10,855 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:25:10,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 17:25:10,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:25:10,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 17:25:10,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-25 17:25:10,858 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 16 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:14,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:25:14,323 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2022-11-25 17:25:14,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 17:25:14,323 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 0 states have call successors, (0), 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 20 [2022-11-25 17:25:14,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:25:14,324 INFO L225 Difference]: With dead ends: 28 [2022-11-25 17:25:14,325 INFO L226 Difference]: Without dead ends: 26 [2022-11-25 17:25:14,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2022-11-25 17:25:14,326 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 26 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-25 17:25:14,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 35 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-25 17:25:14,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-25 17:25:14,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2022-11-25 17:25:14,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:14,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2022-11-25 17:25:14,357 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 20 [2022-11-25 17:25:14,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:25:14,357 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2022-11-25 17:25:14,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:14,358 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2022-11-25 17:25:14,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-25 17:25:14,359 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:25:14,359 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1] [2022-11-25 17:25:14,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-25 17:25:14,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:25:14,567 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:25:14,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:25:14,568 INFO L85 PathProgramCache]: Analyzing trace with hash 142558665, now seen corresponding path program 5 times [2022-11-25 17:25:14,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:25:14,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [694737017] [2022-11-25 17:25:14,573 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-25 17:25:14,573 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:25:14,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:25:14,574 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:25:14,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-25 17:25:18,792 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-11-25 17:25:18,793 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:25:19,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 9044 conjuncts, 86 conjunts are in the unsatisfiable core [2022-11-25 17:25:19,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:25:19,935 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:25:19,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:25:33,626 WARN L233 SmtUtils]: Spent 8.93s on a formula simplification. DAG size of input: 206 DAG size of output: 166 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:25:33,785 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:25:33,785 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:25:33,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [694737017] [2022-11-25 17:25:33,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [694737017] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:25:33,785 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:25:33,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2022-11-25 17:25:33,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431199723] [2022-11-25 17:25:33,786 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:25:33,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-25 17:25:33,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:25:33,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-25 17:25:33,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2022-11-25 17:25:33,788 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:37,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:25:37,168 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2022-11-25 17:25:37,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:25:37,169 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-25 17:25:37,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:25:37,170 INFO L225 Difference]: With dead ends: 38 [2022-11-25 17:25:37,170 INFO L226 Difference]: Without dead ends: 36 [2022-11-25 17:25:37,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 13.1s TimeCoverageRelationStatistics Valid=105, Invalid=495, Unknown=0, NotChecked=0, Total=600 [2022-11-25 17:25:37,172 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 11 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-25 17:25:37,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 45 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-25 17:25:37,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-25 17:25:37,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2022-11-25 17:25:37,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.03125) internal successors, (33), 32 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:37,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2022-11-25 17:25:37,189 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 23 [2022-11-25 17:25:37,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:25:37,189 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2022-11-25 17:25:37,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:37,190 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2022-11-25 17:25:37,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 17:25:37,191 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:25:37,191 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 1, 1, 1, 1] [2022-11-25 17:25:37,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-25 17:25:37,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:25:37,392 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:25:37,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:25:37,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1442555293, now seen corresponding path program 6 times [2022-11-25 17:25:37,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:25:37,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1247170861] [2022-11-25 17:25:37,400 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-25 17:25:37,400 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:25:37,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:25:37,401 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:25:37,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bd8d4c-bcc2-488a-a486-a7a274ed9e97/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-25 17:25:42,996 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-11-25 17:25:42,996 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:25:43,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 12010 conjuncts, 212 conjunts are in the unsatisfiable core [2022-11-25 17:25:43,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:26:23,630 WARN L233 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 603 DAG size of output: 400 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:26:24,639 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 12 proven. 87 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-25 17:26:24,639 INFO L328 TraceCheckSpWp]: Computing backward predicates...