./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p04.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cd96e0219f5c367576fbd54c644e4c7642dcebe67747e9fbd5a25075ee4f799f --- 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-e04fb08 [2022-11-16 19:58:46,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:58:46,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:58:46,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:58:46,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:58:46,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:58:46,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:58:46,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:58:46,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:58:46,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:58:46,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:58:46,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:58:46,683 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:58:46,684 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:58:46,685 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:58:46,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:58:46,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:58:46,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:58:46,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:58:46,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:58:46,693 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:58:46,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:58:46,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:58:46,702 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:58:46,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:58:46,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:58:46,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:58:46,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:58:46,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:58:46,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:58:46,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:58:46,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:58:46,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:58:46,721 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:58:46,722 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:58:46,722 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:58:46,723 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:58:46,723 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:58:46,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:58:46,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:58:46,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:58:46,731 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-16 19:58:46,776 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:58:46,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:58:46,777 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:58:46,777 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:58:46,778 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:58:46,778 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:58:46,778 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:58:46,779 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:58:46,779 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:58:46,779 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 19:58:46,780 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:58:46,780 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:58:46,780 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 19:58:46,781 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 19:58:46,781 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:58:46,781 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 19:58:46,781 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 19:58:46,781 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 19:58:46,782 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:58:46,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 19:58:46,783 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:58:46,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:58:46,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:58:46,785 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:58:46,785 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:58:46,785 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:58:46,785 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:58:46,785 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:58:46,786 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:58:46,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:58:46,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:58:46,786 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 19:58:46,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:58:46,787 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:58:46,787 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 19:58:46,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 19:58:46,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:58:46,788 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:58:46,788 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd96e0219f5c367576fbd54c644e4c7642dcebe67747e9fbd5a25075ee4f799f [2022-11-16 19:58:47,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:58:47,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:58:47,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:58:47,143 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:58:47,144 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:58:47,145 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p04.c [2022-11-16 19:58:47,227 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/data/faf79d0d0/4997139d28404d88b74f0b3362edaf6f/FLAG951cd115a [2022-11-16 19:58:47,824 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:58:47,825 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p04.c [2022-11-16 19:58:47,839 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/data/faf79d0d0/4997139d28404d88b74f0b3362edaf6f/FLAG951cd115a [2022-11-16 19:58:48,138 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/data/faf79d0d0/4997139d28404d88b74f0b3362edaf6f [2022-11-16 19:58:48,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:58:48,146 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:58:48,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:58:48,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:58:48,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:58:48,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:58:48" (1/1) ... [2022-11-16 19:58:48,163 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b15eda3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:48, skipping insertion in model container [2022-11-16 19:58:48,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:58:48" (1/1) ... [2022-11-16 19:58:48,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:58:48,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:58:48,442 WARN L229 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_59a3a860-c14a-4652-b9f2-019d0178672f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p04.c[1107,1120] [2022-11-16 19:58:48,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:58:48,534 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:58:48,554 WARN L229 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_59a3a860-c14a-4652-b9f2-019d0178672f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p04.c[1107,1120] [2022-11-16 19:58:48,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:58:48,590 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:58:48,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:48 WrapperNode [2022-11-16 19:58:48,591 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:58:48,592 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:58:48,592 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:58:48,592 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:58:48,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:48" (1/1) ... [2022-11-16 19:58:48,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:48" (1/1) ... [2022-11-16 19:58:48,636 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 142 [2022-11-16 19:58:48,636 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:58:48,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:58:48,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:58:48,637 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:58:48,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:48" (1/1) ... [2022-11-16 19:58:48,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:48" (1/1) ... [2022-11-16 19:58:48,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:48" (1/1) ... [2022-11-16 19:58:48,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:48" (1/1) ... [2022-11-16 19:58:48,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:48" (1/1) ... [2022-11-16 19:58:48,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:48" (1/1) ... [2022-11-16 19:58:48,662 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:48" (1/1) ... [2022-11-16 19:58:48,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:48" (1/1) ... [2022-11-16 19:58:48,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:58:48,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:58:48,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:58:48,667 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:58:48,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:48" (1/1) ... [2022-11-16 19:58:48,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:58:48,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:58:48,715 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:58:48,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:58:48,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:58:48,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:58:48,923 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:58:48,929 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:58:49,254 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:58:49,420 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:58:49,420 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 19:58:49,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:58:49 BoogieIcfgContainer [2022-11-16 19:58:49,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:58:49,426 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:58:49,427 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:58:49,431 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:58:49,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:58:48" (1/3) ... [2022-11-16 19:58:49,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1407e7a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:58:49, skipping insertion in model container [2022-11-16 19:58:49,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:48" (2/3) ... [2022-11-16 19:58:49,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1407e7a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:58:49, skipping insertion in model container [2022-11-16 19:58:49,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:58:49" (3/3) ... [2022-11-16 19:58:49,435 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p04.c [2022-11-16 19:58:49,460 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:58:49,461 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 19:58:49,555 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 19:58:49,567 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=FINITE_AUTOMATA, 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;@2701e6d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 19:58:49,567 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 19:58:49,572 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:58:49,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-16 19:58:49,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:58:49,580 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-16 19:58:49,581 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:58:49,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:58:49,589 INFO L85 PathProgramCache]: Analyzing trace with hash 3345850, now seen corresponding path program 1 times [2022-11-16 19:58:49,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:58:49,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14684977] [2022-11-16 19:58:49,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:58:49,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:58:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 19:58:49,941 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 19:58:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 19:58:50,039 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-16 19:58:50,042 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 19:58:50,043 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 19:58:50,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 19:58:50,051 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-16 19:58:50,056 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 19:58:50,076 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-16 19:58:50,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:58:50 BoogieIcfgContainer [2022-11-16 19:58:50,084 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 19:58:50,085 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 19:58:50,085 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 19:58:50,085 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 19:58:50,086 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:58:49" (3/4) ... [2022-11-16 19:58:50,090 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 19:58:50,090 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 19:58:50,091 INFO L158 Benchmark]: Toolchain (without parser) took 1945.44ms. Allocated memory is still 136.3MB. Free memory was 101.6MB in the beginning and 96.7MB in the end (delta: 4.9MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2022-11-16 19:58:50,092 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 88.1MB. Free memory was 60.3MB in the beginning and 60.3MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 19:58:50,093 INFO L158 Benchmark]: CACSL2BoogieTranslator took 438.68ms. Allocated memory is still 136.3MB. Free memory was 101.4MB in the beginning and 111.4MB in the end (delta: -10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 19:58:50,094 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.49ms. Allocated memory is still 136.3MB. Free memory was 111.0MB in the beginning and 109.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:58:50,095 INFO L158 Benchmark]: Boogie Preprocessor took 28.77ms. Allocated memory is still 136.3MB. Free memory was 109.3MB in the beginning and 107.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:58:50,096 INFO L158 Benchmark]: RCFGBuilder took 757.15ms. Allocated memory is still 136.3MB. Free memory was 107.7MB in the beginning and 81.6MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-16 19:58:50,096 INFO L158 Benchmark]: TraceAbstraction took 657.74ms. Allocated memory is still 136.3MB. Free memory was 81.2MB in the beginning and 96.8MB in the end (delta: -15.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 19:58:50,097 INFO L158 Benchmark]: Witness Printer took 5.57ms. Allocated memory is still 136.3MB. Free memory was 96.8MB in the beginning and 96.7MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 19:58:50,101 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 88.1MB. Free memory was 60.3MB in the beginning and 60.3MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 438.68ms. Allocated memory is still 136.3MB. Free memory was 101.4MB in the beginning and 111.4MB in the end (delta: -10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.49ms. Allocated memory is still 136.3MB. Free memory was 111.0MB in the beginning and 109.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.77ms. Allocated memory is still 136.3MB. Free memory was 109.3MB in the beginning and 107.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 757.15ms. Allocated memory is still 136.3MB. Free memory was 107.7MB in the beginning and 81.6MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 657.74ms. Allocated memory is still 136.3MB. Free memory was 81.2MB in the beginning and 96.8MB in the end (delta: -15.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.57ms. Allocated memory is still 136.3MB. Free memory was 96.8MB in the beginning and 96.7MB in the end (delta: 97.9kB). 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 bitwiseOr at line 100, overapproximation of bitwiseComplement at line 102, overapproximation of bitwiseAnd at line 88. 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 - 5); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (5 - 1); [L31] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 12); [L32] const SORT_5 msb_SORT_5 = (SORT_5)1 << (12 - 1); [L34] const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 3); [L35] const SORT_7 msb_SORT_7 = (SORT_7)1 << (3 - 1); [L37] const SORT_14 mask_SORT_14 = (SORT_14)-1 >> (sizeof(SORT_14) * 8 - 2); [L38] const SORT_14 msb_SORT_14 = (SORT_14)1 << (2 - 1); [L40] const SORT_7 var_8 = 0; [L41] const SORT_1 var_12 = 0; [L42] const SORT_14 var_16 = 0; [L43] const SORT_1 var_21 = 1; [L44] const SORT_7 var_50 = 1; [L45] const SORT_7 var_52 = 4; [L47] SORT_1 input_2; [L48] SORT_3 input_4; [L49] SORT_5 input_6; [L50] SORT_3 input_25; [L51] SORT_3 input_27; [L52] SORT_3 input_29; [L53] SORT_1 input_31; [L54] SORT_5 input_33; [L55] SORT_3 input_35; [L56] SORT_3 input_37; [L57] SORT_3 input_39; [L58] SORT_3 input_41; [L59] SORT_3 input_43; [L60] SORT_3 input_45; [L61] SORT_3 input_47; [L63] SORT_7 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_7; [L65] SORT_7 init_10_arg_1 = var_8; [L66] state_9 = init_10_arg_1 VAL [init_10_arg_1=0, mask_SORT_1=1, mask_SORT_14=3, mask_SORT_3=31, mask_SORT_5=4095, mask_SORT_7=7, msb_SORT_1=1, msb_SORT_14=2, msb_SORT_3=16, msb_SORT_5=2048, msb_SORT_7=4, state_9=0, var_12=0, var_16=0, var_21=1, var_50=1, var_52=4, var_8=0] [L69] input_2 = __VERIFIER_nondet_uchar() [L70] input_4 = __VERIFIER_nondet_uchar() [L71] input_6 = __VERIFIER_nondet_ushort() [L72] input_25 = __VERIFIER_nondet_uchar() [L73] input_27 = __VERIFIER_nondet_uchar() [L74] input_29 = __VERIFIER_nondet_uchar() [L75] input_31 = __VERIFIER_nondet_uchar() [L76] input_33 = __VERIFIER_nondet_ushort() [L77] input_35 = __VERIFIER_nondet_uchar() [L78] input_37 = __VERIFIER_nondet_uchar() [L79] input_39 = __VERIFIER_nondet_uchar() [L80] input_41 = __VERIFIER_nondet_uchar() [L81] input_43 = __VERIFIER_nondet_uchar() [L82] input_45 = __VERIFIER_nondet_uchar() [L83] input_47 = __VERIFIER_nondet_uchar() [L86] SORT_7 var_11_arg_0 = state_9; [L87] SORT_1 var_11 = var_11_arg_0 >> 2; [L88] var_11 = var_11 & mask_SORT_1 [L89] SORT_1 var_13_arg_0 = var_11; [L90] SORT_1 var_13_arg_1 = var_12; [L91] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L92] SORT_7 var_15_arg_0 = state_9; [L93] SORT_14 var_15 = var_15_arg_0 >> 0; [L94] var_15 = var_15 & mask_SORT_14 [L95] SORT_14 var_17_arg_0 = var_15; [L96] SORT_14 var_17_arg_1 = var_16; [L97] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L98] SORT_1 var_18_arg_0 = var_13; [L99] SORT_1 var_18_arg_1 = var_17; [L100] SORT_1 var_18 = var_18_arg_0 | var_18_arg_1; [L101] SORT_1 var_22_arg_0 = var_18; [L102] SORT_1 var_22 = ~var_22_arg_0; [L103] SORT_1 var_23_arg_0 = var_21; [L104] SORT_1 var_23_arg_1 = var_22; [L105] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; [L106] var_23 = var_23 & mask_SORT_1 [L107] SORT_1 bad_24_arg_0 = var_23; [L108] CALL __VERIFIER_assert(!(bad_24_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, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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=7occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 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 [2022-11-16 19:58:50,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/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_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cd96e0219f5c367576fbd54c644e4c7642dcebe67747e9fbd5a25075ee4f799f --- 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-e04fb08 [2022-11-16 19:58:52,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:58:52,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:58:52,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:58:52,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:58:52,730 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:58:52,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:58:52,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:58:52,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:58:52,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:58:52,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:58:52,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:58:52,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:58:52,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:58:52,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:58:52,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:58:52,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:58:52,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:58:52,768 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:58:52,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:58:52,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:58:52,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:58:52,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:58:52,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:58:52,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:58:52,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:58:52,793 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:58:52,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:58:52,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:58:52,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:58:52,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:58:52,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:58:52,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:58:52,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:58:52,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:58:52,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:58:52,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:58:52,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:58:52,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:58:52,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:58:52,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:58:52,809 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-16 19:58:52,852 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:58:52,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:58:52,854 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:58:52,855 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:58:52,856 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:58:52,856 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:58:52,856 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:58:52,857 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:58:52,857 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:58:52,857 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:58:52,858 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:58:52,858 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:58:52,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:58:52,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:58:52,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:58:52,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:58:52,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:58:52,861 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 19:58:52,861 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 19:58:52,862 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 19:58:52,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:58:52,862 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:58:52,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:58:52,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:58:52,863 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 19:58:52,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:58:52,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:58:52,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:58:52,864 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:58:52,864 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:58:52,864 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-16 19:58:52,864 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 19:58:52,865 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:58:52,865 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:58:52,865 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 19:58:52,866 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd96e0219f5c367576fbd54c644e4c7642dcebe67747e9fbd5a25075ee4f799f [2022-11-16 19:58:53,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:58:53,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:58:53,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:58:53,330 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:58:53,331 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:58:53,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p04.c [2022-11-16 19:58:53,425 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/data/ff3c3f856/c2e69d8514f742a29be0a59b752fbe60/FLAG35ff088e0 [2022-11-16 19:58:54,033 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:58:54,034 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p04.c [2022-11-16 19:58:54,047 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/data/ff3c3f856/c2e69d8514f742a29be0a59b752fbe60/FLAG35ff088e0 [2022-11-16 19:58:54,360 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/data/ff3c3f856/c2e69d8514f742a29be0a59b752fbe60 [2022-11-16 19:58:54,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:58:54,371 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:58:54,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:58:54,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:58:54,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:58:54,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:58:54" (1/1) ... [2022-11-16 19:58:54,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@665c20e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:54, skipping insertion in model container [2022-11-16 19:58:54,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:58:54" (1/1) ... [2022-11-16 19:58:54,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:58:54,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:58:54,543 WARN L229 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_59a3a860-c14a-4652-b9f2-019d0178672f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p04.c[1107,1120] [2022-11-16 19:58:54,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:58:54,596 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:58:54,629 WARN L229 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_59a3a860-c14a-4652-b9f2-019d0178672f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p04.c[1107,1120] [2022-11-16 19:58:54,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:58:54,675 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:58:54,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:54 WrapperNode [2022-11-16 19:58:54,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:58:54,677 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:58:54,677 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:58:54,677 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:58:54,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:54" (1/1) ... [2022-11-16 19:58:54,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:54" (1/1) ... [2022-11-16 19:58:54,738 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 114 [2022-11-16 19:58:54,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:58:54,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:58:54,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:58:54,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:58:54,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:54" (1/1) ... [2022-11-16 19:58:54,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:54" (1/1) ... [2022-11-16 19:58:54,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:54" (1/1) ... [2022-11-16 19:58:54,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:54" (1/1) ... [2022-11-16 19:58:54,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:54" (1/1) ... [2022-11-16 19:58:54,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:54" (1/1) ... [2022-11-16 19:58:54,789 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:54" (1/1) ... [2022-11-16 19:58:54,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:54" (1/1) ... [2022-11-16 19:58:54,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:58:54,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:58:54,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:58:54,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:58:54,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:54" (1/1) ... [2022-11-16 19:58:54,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:58:54,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:58:54,851 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:58:54,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:58:54,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:58:54,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:58:55,033 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:58:55,035 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:58:55,273 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:58:55,280 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:58:55,280 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 19:58:55,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:58:55 BoogieIcfgContainer [2022-11-16 19:58:55,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:58:55,284 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:58:55,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:58:55,287 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:58:55,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:58:54" (1/3) ... [2022-11-16 19:58:55,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@284b5a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:58:55, skipping insertion in model container [2022-11-16 19:58:55,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:58:54" (2/3) ... [2022-11-16 19:58:55,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@284b5a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:58:55, skipping insertion in model container [2022-11-16 19:58:55,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:58:55" (3/3) ... [2022-11-16 19:58:55,292 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p04.c [2022-11-16 19:58:55,333 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:58:55,333 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 19:58:55,431 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 19:58:55,443 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=FINITE_AUTOMATA, 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;@5d67c0a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 19:58:55,443 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 19:58:55,447 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) [2022-11-16 19:58:55,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 19:58:55,455 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:58:55,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 19:58:55,456 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:58:55,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:58:55,464 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-16 19:58:55,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 19:58:55,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1664360522] [2022-11-16 19:58:55,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:58:55,479 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 [2022-11-16 19:58:55,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 19:58:55,484 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/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) [2022-11-16 19:58:55,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/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 [2022-11-16 19:58:55,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:58:55,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-16 19:58:55,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:58:55,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:58:55,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 19:58:55,899 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 19:58:55,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1664360522] [2022-11-16 19:58:55,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1664360522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:58:55,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:58:55,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 19:58:55,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556797927] [2022-11-16 19:58:55,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:58:55,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:58:55,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 19:58:55,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:58:55,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:58:55,967 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) [2022-11-16 19:58:56,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:58:56,035 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-16 19:58:56,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 19:58:56,038 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 [2022-11-16 19:58:56,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:58:56,046 INFO L225 Difference]: With dead ends: 20 [2022-11-16 19:58:56,046 INFO L226 Difference]: Without dead ends: 11 [2022-11-16 19:58:56,049 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 [2022-11-16 19:58:56,053 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 19:58:56,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 19:58:56,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-16 19:58:56,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-16 19:58:56,084 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) [2022-11-16 19:58:56,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-16 19:58:56,086 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-16 19:58:56,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:58:56,087 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-16 19:58:56,087 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) [2022-11-16 19:58:56,087 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-16 19:58:56,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 19:58:56,088 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:58:56,088 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-16 19:58:56,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/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)] Forceful destruction successful, exit code 0 [2022-11-16 19:58:56,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/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 [2022-11-16 19:58:56,300 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:58:56,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:58:56,301 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-16 19:58:56,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 19:58:56,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1743775737] [2022-11-16 19:58:56,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:58:56,303 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 [2022-11-16 19:58:56,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 19:58:56,304 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/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) [2022-11-16 19:58:56,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/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 [2022-11-16 19:58:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:58:56,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-16 19:58:56,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:58:56,663 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:58:56,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:58:57,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:58:57,440 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 19:58:57,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1743775737] [2022-11-16 19:58:57,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1743775737] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:58:57,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1147948934] [2022-11-16 19:58:57,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:58:57,442 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 19:58:57,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/cvc4 [2022-11-16 19:58:57,444 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 19:58:57,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-16 19:58:57,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:58:57,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-16 19:58:57,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:58:57,760 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:58:57,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:58:58,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:58:58,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1147948934] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:58:58,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109257200] [2022-11-16 19:58:58,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:58:58,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:58:58,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:58:58,109 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:58:58,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 19:58:58,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:58:58,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-16 19:58:58,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:58:58,406 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:58:58,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:58:58,934 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:58:58,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109257200] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:58:58,940 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-16 19:58:58,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 6, 5, 6, 6] total 11 [2022-11-16 19:58:58,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309806006] [2022-11-16 19:58:58,942 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-16 19:58:58,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 19:58:58,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 19:58:58,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 19:58:58,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-16 19:58:58,946 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:58:59,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:58:59,065 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-16 19:58:59,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 19:58:59,066 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 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 [2022-11-16 19:58:59,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:58:59,067 INFO L225 Difference]: With dead ends: 16 [2022-11-16 19:58:59,067 INFO L226 Difference]: Without dead ends: 14 [2022-11-16 19:58:59,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-16 19:58:59,071 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 8 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 19:58:59,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 22 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 14 Unchecked, 0.0s Time] [2022-11-16 19:58:59,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-16 19:58:59,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-16 19:58:59,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:58:59,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-16 19:58:59,084 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-16 19:58:59,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:58:59,085 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-16 19:58:59,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:58:59,085 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-16 19:58:59,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 19:58:59,086 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:58:59,086 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-16 19:58:59,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/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)] Forceful destruction successful, exit code 0 [2022-11-16 19:58:59,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-16 19:58:59,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 19:58:59,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:58:59,699 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:58:59,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:58:59,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-16 19:58:59,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 19:58:59,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717795353] [2022-11-16 19:58:59,700 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 19:58:59,700 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 [2022-11-16 19:58:59,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 19:58:59,702 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/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) [2022-11-16 19:58:59,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/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 [2022-11-16 19:58:59,818 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 19:58:59,818 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:58:59,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-16 19:58:59,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:59:00,164 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:59:00,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:59:01,191 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:59:01,192 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 19:59:01,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717795353] [2022-11-16 19:59:01,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [717795353] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:59:01,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1078735412] [2022-11-16 19:59:01,193 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 19:59:01,193 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 19:59:01,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/cvc4 [2022-11-16 19:59:01,194 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 19:59:01,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-16 19:59:01,381 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 19:59:01,382 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:59:01,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 43 conjunts are in the unsatisfiable core [2022-11-16 19:59:01,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:59:01,749 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:59:01,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:59:04,072 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse4 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|))) (let ((.cse9 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_9~0#1|)) (.cse2 (forall ((|v_ULTIMATE.start_main_~var_18_arg_1~0#1_12| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_23_arg_0~0#1_12| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_18_arg_1~0#1_12|) (_ bv0 32))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_23_arg_0~0#1_12|)))))) (_ bv0 8)))) (.cse3 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_12~0#1|))) (let ((.cse1 (forall ((|v_ULTIMATE.start_main_~var_18_arg_1~0#1_12| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_23_arg_0~0#1_12| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_18_arg_1~0#1_12|) (_ bv1 32))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_23_arg_0~0#1_12|)))))) (_ bv0 8)))) (.cse6 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_50~0#1|)) (.cse7 (or .cse2 (forall ((|ULTIMATE.start_main_~mask_SORT_7~0#1| (_ BitVec 8))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvashr ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_7~0#1|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_8~0#1|)))))) (_ bv2 32))))))) .cse3)))) (.cse0 (= .cse9 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_52~0#1|)))) (and (or (not .cse0) (and .cse1 (or .cse2 (forall ((|v_ULTIMATE.start_main_~var_54_arg_1~0#1_13| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_7~0#1| (_ BitVec 8))) (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvashr ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse5 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_7~0#1|))) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_54_arg_1~0#1_13|))) .cse5))) .cse6))))) .cse5)))) (_ bv2 32)))))))))) .cse7)) (or (and .cse1 (or (forall ((|ULTIMATE.start_main_~mask_SORT_7~0#1| (_ BitVec 8))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvashr ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse8 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_7~0#1|))) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse9 .cse6)))))))) .cse6))))) .cse8)))) (_ bv2 32))))))) .cse3)) .cse2) .cse7) .cse0))))) is different from false [2022-11-16 19:59:04,327 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2022-11-16 19:59:04,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1078735412] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:59:04,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548484663] [2022-11-16 19:59:04,328 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 19:59:04,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:59:04,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:59:04,330 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:59:04,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 19:59:04,488 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 19:59:04,489 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:59:04,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 76 conjunts are in the unsatisfiable core [2022-11-16 19:59:04,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:59:05,908 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:59:05,908 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:59:38,619 WARN L233 SmtUtils]: Spent 27.90s on a formula simplification. DAG size of input: 227 DAG size of output: 192 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 19:59:44,341 WARN L233 SmtUtils]: Spent 5.21s on a formula simplification that was a NOOP. DAG size: 195 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 19:59:44,654 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:59:44,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548484663] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:59:44,655 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-16 19:59:44,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 10, 9] total 27 [2022-11-16 19:59:44,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204267492] [2022-11-16 19:59:44,655 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-16 19:59:44,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-16 19:59:44,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 19:59:44,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-16 19:59:44,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=524, Unknown=2, NotChecked=48, Total=702 [2022-11-16 19:59:44,658 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 27 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 27 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:59:46,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:59:46,723 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-11-16 19:59:46,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 19:59:46,724 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 27 states have internal predecessors, (48), 0 states have call successors, (0), 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 11 [2022-11-16 19:59:46,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:59:46,725 INFO L225 Difference]: With dead ends: 20 [2022-11-16 19:59:46,725 INFO L226 Difference]: Without dead ends: 18 [2022-11-16 19:59:46,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 42.7s TimeCoverageRelationStatistics Valid=247, Invalid=811, Unknown=2, NotChecked=62, Total=1122 [2022-11-16 19:59:46,727 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 37 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 65 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 19:59:46,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 35 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 65 Unchecked, 0.0s Time] [2022-11-16 19:59:46,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-16 19:59:46,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-16 19:59:46,733 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) [2022-11-16 19:59:46,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-16 19:59:46,734 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2022-11-16 19:59:46,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:59:46,734 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-16 19:59:46,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 27 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:59:46,735 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-16 19:59:46,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 19:59:46,735 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:59:46,735 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-11-16 19:59:46,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/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 [2022-11-16 19:59:46,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-16 19:59:47,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 19:59:47,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:59:47,352 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:59:47,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:59:47,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 3 times [2022-11-16 19:59:47,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 19:59:47,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984082264] [2022-11-16 19:59:47,354 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 19:59:47,354 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 [2022-11-16 19:59:47,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 19:59:47,356 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/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) [2022-11-16 19:59:47,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/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 (9)] Waiting until timeout for monitored process [2022-11-16 19:59:47,464 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-16 19:59:47,464 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:59:47,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 67 conjunts are in the unsatisfiable core [2022-11-16 19:59:47,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:59:48,874 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 19:59:48,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:00:19,927 WARN L233 SmtUtils]: Spent 28.76s on a formula simplification. DAG size of input: 219 DAG size of output: 189 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:00:21,748 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 20:00:21,748 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 20:00:21,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984082264] [2022-11-16 20:00:21,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [984082264] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:00:21,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2017728104] [2022-11-16 20:00:21,749 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 20:00:21,749 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 20:00:21,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/cvc4 [2022-11-16 20:00:21,751 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 20:00:21,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-16 20:00:21,928 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-16 20:00:21,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 20:00:21,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 67 conjunts are in the unsatisfiable core [2022-11-16 20:00:21,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:00:22,717 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 20:00:22,717 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:00:55,764 WARN L233 SmtUtils]: Spent 30.05s on a formula simplification. DAG size of input: 219 DAG size of output: 190 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:00:57,701 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 20:00:57,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2017728104] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:00:57,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524712507] [2022-11-16 20:00:57,705 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 20:00:57,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:00:57,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:00:57,713 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:00:57,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-16 20:00:57,807 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-16 20:00:57,807 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 20:00:57,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 76 conjunts are in the unsatisfiable core [2022-11-16 20:00:57,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:00:58,826 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 20:00:58,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:01:13,157 WARN L233 SmtUtils]: Spent 9.41s on a formula simplification that was a NOOP. DAG size: 194 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:01:13,392 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-16 20:01:13,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524712507] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:01:13,392 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-16 20:01:13,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 10, 9] total 18 [2022-11-16 20:01:13,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511414621] [2022-11-16 20:01:13,393 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-16 20:01:13,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 20:01:13,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 20:01:13,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 20:01:13,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=236, Unknown=1, NotChecked=0, Total=306 [2022-11-16 20:01:13,395 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 18 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 18 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) [2022-11-16 20:01:13,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:01:13,691 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-11-16 20:01:13,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 20:01:13,691 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 18 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 [2022-11-16 20:01:13,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:01:13,692 INFO L225 Difference]: With dead ends: 18 [2022-11-16 20:01:13,692 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 20:01:13,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 73 SyntacticMatches, 9 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 75.5s TimeCoverageRelationStatistics Valid=105, Invalid=274, Unknown=1, NotChecked=0, Total=380 [2022-11-16 20:01:13,694 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 19 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:01:13,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 11 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 7 Unchecked, 0.0s Time] [2022-11-16 20:01:13,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 20:01:13,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 20:01:13,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:01:13,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 20:01:13,695 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-11-16 20:01:13,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:01:13,696 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 20:01:13,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 18 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) [2022-11-16 20:01:13,696 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 20:01:13,696 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 20:01:13,699 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 20:01:13,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2022-11-16 20:01:13,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-16 20:01:14,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/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 (9)] Forceful destruction successful, exit code 0 [2022-11-16 20:01:14,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/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 [2022-11-16 20:01:14,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 20:01:14,605 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 20:01:14,605 INFO L895 garLoopResultBuilder]: At program point L67-2(lines 67 124) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= |ULTIMATE.start_main_~var_16~0#1| (_ bv0 8))) (.cse2 (= (_ bv7 8) |ULTIMATE.start_main_~mask_SORT_7~0#1|)) (.cse3 (= (_ bv3 8) |ULTIMATE.start_main_~mask_SORT_14~0#1|)) (.cse4 (= (_ bv4 8) |ULTIMATE.start_main_~var_52~0#1|)) (.cse6 (= (_ bv1 8) |ULTIMATE.start_main_~var_50~0#1|)) (.cse7 (= |ULTIMATE.start_main_~var_12~0#1| (_ bv0 8))) (.cse8 (= (_ bv1 8) |ULTIMATE.start_main_~var_21~0#1|))) (or (and .cse0 .cse1 .cse2 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse3 (= |ULTIMATE.start_main_~var_8~0#1| (_ bv0 8)) .cse4 (exists ((|v_ULTIMATE.start_main_~var_54_arg_2~0#1_19| (_ BitVec 8))) (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_54_arg_2~0#1_19|))) (_ bv7 32)))))) (and (= |ULTIMATE.start_main_~state_9~0#1| ((_ extract 7 0) (bvand (_ bv7 32) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse5 (_ bv1 32))))))))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse5 (_ bv2 32)))) ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|)))) ((_ zero_extend 24) |ULTIMATE.start_main_~var_12~0#1|))))) .cse6 .cse7 .cse8) (and .cse0 .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_main_~state_9~0#1| |ULTIMATE.start_main_~var_8~0#1|) (= |ULTIMATE.start_main_~state_9~0#1| (_ bv0 8)) .cse6 .cse7 .cse8))) [2022-11-16 20:01:14,605 INFO L899 garLoopResultBuilder]: For program point L67-3(lines 67 124) no Hoare annotation was computed. [2022-11-16 20:01:14,605 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-16 20:01:14,606 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 20:01:14,606 INFO L895 garLoopResultBuilder]: At program point L125(lines 22 126) the Hoare annotation is: false [2022-11-16 20:01:14,606 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-16 20:01:14,606 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-16 20:01:14,606 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-16 20:01:14,606 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-16 20:01:14,606 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-16 20:01:14,609 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1] [2022-11-16 20:01:14,611 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 20:01:14,622 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_54_arg_2~0#1_19,QUANTIFIED] [2022-11-16 20:01:14,623 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_54_arg_2~0#1_19,QUANTIFIED] [2022-11-16 20:01:14,628 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_54_arg_2~0#1_19,QUANTIFIED] [2022-11-16 20:01:14,628 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_54_arg_2~0#1_19,QUANTIFIED] [2022-11-16 20:01:14,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 08:01:14 BoogieIcfgContainer [2022-11-16 20:01:14,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 20:01:14,630 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 20:01:14,631 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 20:01:14,631 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 20:01:14,631 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:58:55" (3/4) ... [2022-11-16 20:01:14,634 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 20:01:14,644 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-16 20:01:14,645 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-16 20:01:14,645 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 20:01:14,669 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((1bv8 == mask_SORT_1 && var_16 == 0bv8) && 7bv8 == mask_SORT_7) && cond == 1bv32) && 3bv8 == mask_SORT_14) && var_8 == 0bv8) && 4bv8 == var_52) && (\exists v_ULTIMATE.start_main_~var_54_arg_2~0#1_19 : bv8 :: state_9 == ~bvand32(7bv32, ~zero_extendFrom16To32(~zero_extendFrom16To32(~bvadd64(~zero_extendFrom16To32(~bvand32(~zero_extendFrom16To32(~zero_extendFrom16To32(v_ULTIMATE.start_main_~var_54_arg_2~0#1_19)[7:0]), 7bv32)[7:0]), 1bv32)[7:0])[7:0]))[7:0] && ~zero_extendFrom16To32(~bvand32(~zero_extendFrom16To32(~bvashr32(~zero_extendFrom16To32(~bvand32(~zero_extendFrom16To32(~zero_extendFrom16To32(v_ULTIMATE.start_main_~var_54_arg_2~0#1_19)[7:0]), 7bv32)[7:0]), 2bv32)[7:0]), ~zero_extendFrom16To32(mask_SORT_1))[7:0]) == ~zero_extendFrom16To32(var_12))) && 1bv8 == var_50) && var_12 == 0bv8) && 1bv8 == var_21) || (((((((((1bv8 == mask_SORT_1 && var_16 == 0bv8) && 7bv8 == mask_SORT_7) && 3bv8 == mask_SORT_14) && 4bv8 == var_52) && state_9 == var_8) && state_9 == 0bv8) && 1bv8 == var_50) && var_12 == 0bv8) && 1bv8 == var_21) [2022-11-16 20:01:14,684 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 20:01:14,684 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 20:01:14,685 INFO L158 Benchmark]: Toolchain (without parser) took 140314.24ms. Allocated memory was 54.5MB in the beginning and 180.4MB in the end (delta: 125.8MB). Free memory was 31.3MB in the beginning and 120.0MB in the end (delta: -88.7MB). Peak memory consumption was 37.0MB. Max. memory is 16.1GB. [2022-11-16 20:01:14,685 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 54.5MB. Free memory was 36.1MB in the beginning and 36.1MB in the end (delta: 49.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 20:01:14,685 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.52ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.1MB in the beginning and 49.9MB in the end (delta: -18.8MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2022-11-16 20:01:14,686 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.83ms. Allocated memory is still 67.1MB. Free memory was 49.9MB in the beginning and 48.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 20:01:14,686 INFO L158 Benchmark]: Boogie Preprocessor took 62.46ms. Allocated memory is still 67.1MB. Free memory was 48.0MB in the beginning and 46.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 20:01:14,686 INFO L158 Benchmark]: RCFGBuilder took 479.09ms. Allocated memory is still 67.1MB. Free memory was 46.6MB in the beginning and 47.2MB in the end (delta: -593.2kB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2022-11-16 20:01:14,687 INFO L158 Benchmark]: TraceAbstraction took 139345.65ms. Allocated memory was 67.1MB in the beginning and 180.4MB in the end (delta: 113.2MB). Free memory was 46.5MB in the beginning and 123.2MB in the end (delta: -76.6MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2022-11-16 20:01:14,687 INFO L158 Benchmark]: Witness Printer took 53.80ms. Allocated memory is still 180.4MB. Free memory was 123.2MB in the beginning and 120.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 20:01:14,689 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 54.5MB. Free memory was 36.1MB in the beginning and 36.1MB in the end (delta: 49.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 301.52ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.1MB in the beginning and 49.9MB in the end (delta: -18.8MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.83ms. Allocated memory is still 67.1MB. Free memory was 49.9MB in the beginning and 48.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 62.46ms. Allocated memory is still 67.1MB. Free memory was 48.0MB in the beginning and 46.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 479.09ms. Allocated memory is still 67.1MB. Free memory was 46.6MB in the beginning and 47.2MB in the end (delta: -593.2kB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * TraceAbstraction took 139345.65ms. Allocated memory was 67.1MB in the beginning and 180.4MB in the end (delta: 113.2MB). Free memory was 46.5MB in the beginning and 123.2MB in the end (delta: -76.6MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. * Witness Printer took 53.80ms. Allocated memory is still 180.4MB. Free memory was 123.2MB in the beginning and 120.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_54_arg_2~0#1_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_54_arg_2~0#1_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_54_arg_2~0#1_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_54_arg_2~0#1_19,QUANTIFIED] * 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 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 139.2s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 68 mSDsluCounter, 81 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 86 IncrementalHoareTripleChecker+Unchecked, 66 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 15 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 217 GetRequests, 138 SyntacticMatches, 15 SemanticMatches, 64 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 119.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=3, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 105 HoareAnnotationTreeSize, 2 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 422 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 132.7s InterpolantComputationTime, 113 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 202 ConstructedInterpolants, 93 QuantifiedInterpolants, 29944 SizeOfPredicates, 504 NumberOfNonLiveVariables, 1325 ConjunctsInSsa, 494 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 58/210 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 67]: Loop Invariant [2022-11-16 20:01:14,697 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_54_arg_2~0#1_19,QUANTIFIED] [2022-11-16 20:01:14,697 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_54_arg_2~0#1_19,QUANTIFIED] [2022-11-16 20:01:14,698 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_54_arg_2~0#1_19,QUANTIFIED] [2022-11-16 20:01:14,698 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_54_arg_2~0#1_19,QUANTIFIED] Derived loop invariant: ((((((((((1bv8 == mask_SORT_1 && var_16 == 0bv8) && 7bv8 == mask_SORT_7) && cond == 1bv32) && 3bv8 == mask_SORT_14) && var_8 == 0bv8) && 4bv8 == var_52) && (\exists v_ULTIMATE.start_main_~var_54_arg_2~0#1_19 : bv8 :: state_9 == ~bvand32(7bv32, ~zero_extendFrom16To32(~zero_extendFrom16To32(~bvadd64(~zero_extendFrom16To32(~bvand32(~zero_extendFrom16To32(~zero_extendFrom16To32(v_ULTIMATE.start_main_~var_54_arg_2~0#1_19)[7:0]), 7bv32)[7:0]), 1bv32)[7:0])[7:0]))[7:0] && ~zero_extendFrom16To32(~bvand32(~zero_extendFrom16To32(~bvashr32(~zero_extendFrom16To32(~bvand32(~zero_extendFrom16To32(~zero_extendFrom16To32(v_ULTIMATE.start_main_~var_54_arg_2~0#1_19)[7:0]), 7bv32)[7:0]), 2bv32)[7:0]), ~zero_extendFrom16To32(mask_SORT_1))[7:0]) == ~zero_extendFrom16To32(var_12))) && 1bv8 == var_50) && var_12 == 0bv8) && 1bv8 == var_21) || (((((((((1bv8 == mask_SORT_1 && var_16 == 0bv8) && 7bv8 == mask_SORT_7) && 3bv8 == mask_SORT_14) && 4bv8 == var_52) && state_9 == var_8) && state_9 == 0bv8) && 1bv8 == var_50) && var_12 == 0bv8) && 1bv8 == var_21) RESULT: Ultimate proved your program to be correct! [2022-11-16 20:01:14,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59a3a860-c14a-4652-b9f2-019d0178672f/bin/utaipan-Xvt2sAort0/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 Writing output log to file Ultimate.log Result: TRUE