./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.6.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.6.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS --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 ec046432918f7615590c7dfb07eb363eabe222dcf2ec330f11e6ba4379b67439 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:32:18,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:32:18,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:32:18,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:32:18,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:32:18,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:32:18,811 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:32:18,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:32:18,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:32:18,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:32:18,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:32:18,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:32:18,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:32:18,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:32:18,831 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:32:18,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:32:18,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:32:18,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:32:18,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:32:18,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:32:18,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:32:18,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:32:18,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:32:18,852 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:32:18,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:32:18,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:32:18,865 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:32:18,866 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:32:18,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:32:18,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:32:18,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:32:18,872 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:32:18,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:32:18,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:32:18,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:32:18,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:32:18,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:32:18,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:32:18,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:32:18,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:32:18,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:32:18,880 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:32:18,922 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:32:18,923 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:32:18,923 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:32:18,924 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:32:18,924 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:32:18,925 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:32:18,925 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:32:18,925 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:32:18,925 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:32:18,926 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:32:18,927 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:32:18,927 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:32:18,927 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:32:18,927 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:32:18,928 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:32:18,928 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:32:18,928 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:32:18,928 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:32:18,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:32:18,929 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:32:18,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:32:18,930 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:32:18,930 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:32:18,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:32:18,932 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:32:18,932 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:32:18,932 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:32:18,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:32:18,933 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:32:18,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:32:18,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:32:18,934 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:32:18,934 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:32:18,934 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:32:18,935 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:32:18,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:32:18,935 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:32:18,935 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:32:18,936 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_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec046432918f7615590c7dfb07eb363eabe222dcf2ec330f11e6ba4379b67439 [2022-11-19 08:32:19,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:32:19,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:32:19,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:32:19,306 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:32:19,307 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:32:19,309 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.6.prop1-func-interl.c [2022-11-19 08:32:19,377 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/data/0f7c3d34d/2457e124b8c74d7b893b4927bba73425/FLAGc7a38fd57 [2022-11-19 08:32:20,030 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:32:20,031 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.6.prop1-func-interl.c [2022-11-19 08:32:20,064 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/data/0f7c3d34d/2457e124b8c74d7b893b4927bba73425/FLAGc7a38fd57 [2022-11-19 08:32:20,212 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/data/0f7c3d34d/2457e124b8c74d7b893b4927bba73425 [2022-11-19 08:32:20,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:32:20,217 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:32:20,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:32:20,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:32:20,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:32:20,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:32:20" (1/1) ... [2022-11-19 08:32:20,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67f346d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:20, skipping insertion in model container [2022-11-19 08:32:20,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:32:20" (1/1) ... [2022-11-19 08:32:20,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:32:20,325 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:32:20,569 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.6.prop1-func-interl.c[1014,1027] [2022-11-19 08:32:21,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:32:21,023 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:32:21,034 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.6.prop1-func-interl.c[1014,1027] [2022-11-19 08:32:21,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:32:21,214 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:32:21,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:21 WrapperNode [2022-11-19 08:32:21,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:32:21,216 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:32:21,216 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:32:21,216 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:32:21,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:21" (1/1) ... [2022-11-19 08:32:21,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:21" (1/1) ... [2022-11-19 08:32:21,469 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3407 [2022-11-19 08:32:21,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:32:21,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:32:21,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:32:21,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:32:21,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:21" (1/1) ... [2022-11-19 08:32:21,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:21" (1/1) ... [2022-11-19 08:32:21,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:21" (1/1) ... [2022-11-19 08:32:21,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:21" (1/1) ... [2022-11-19 08:32:21,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:21" (1/1) ... [2022-11-19 08:32:21,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:21" (1/1) ... [2022-11-19 08:32:21,625 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:21" (1/1) ... [2022-11-19 08:32:21,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:21" (1/1) ... [2022-11-19 08:32:21,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:32:21,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:32:21,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:32:21,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:32:21,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:21" (1/1) ... [2022-11-19 08:32:21,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:32:21,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:32:21,711 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:32:21,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:32:21,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:32:21,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:32:22,291 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:32:22,293 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:32:29,068 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:32:44,082 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:32:44,083 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 08:32:44,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:32:44 BoogieIcfgContainer [2022-11-19 08:32:44,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:32:44,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:32:44,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:32:44,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:32:44,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:32:20" (1/3) ... [2022-11-19 08:32:44,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a5657b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:32:44, skipping insertion in model container [2022-11-19 08:32:44,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:21" (2/3) ... [2022-11-19 08:32:44,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a5657b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:32:44, skipping insertion in model container [2022-11-19 08:32:44,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:32:44" (3/3) ... [2022-11-19 08:32:44,097 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bakery.6.prop1-func-interl.c [2022-11-19 08:32:44,119 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:32:44,119 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:32:44,183 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:32:44,196 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;@256a6b25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:32:44,196 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:32:44,200 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) [2022-11-19 08:32:44,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 08:32:44,206 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:44,207 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 08:32:44,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:32:44,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:44,212 INFO L85 PathProgramCache]: Analyzing trace with hash 68732280, now seen corresponding path program 1 times [2022-11-19 08:32:44,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:44,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034435247] [2022-11-19 08:32:44,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:44,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:44,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:32:44,614 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 08:32:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:32:44,854 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 08:32:44,857 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 08:32:44,858 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 08:32:44,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:32:44,864 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-19 08:32:44,868 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:32:44,894 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 08:32:44,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:32:44 BoogieIcfgContainer [2022-11-19 08:32:44,905 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:32:44,906 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:32:44,906 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:32:44,906 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:32:44,911 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:32:44" (3/4) ... [2022-11-19 08:32:44,914 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 08:32:44,914 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:32:44,916 INFO L158 Benchmark]: Toolchain (without parser) took 24698.24ms. Allocated memory was 138.4MB in the beginning and 4.7GB in the end (delta: 4.5GB). Free memory was 102.2MB in the beginning and 4.4GB in the end (delta: -4.3GB). Peak memory consumption was 244.6MB. Max. memory is 16.1GB. [2022-11-19 08:32:44,916 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory was 58.0MB in the beginning and 58.0MB in the end (delta: 31.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:32:44,918 INFO L158 Benchmark]: CACSL2BoogieTranslator took 994.78ms. Allocated memory is still 138.4MB. Free memory was 101.9MB in the beginning and 55.0MB in the end (delta: 46.9MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2022-11-19 08:32:44,919 INFO L158 Benchmark]: Boogie Procedure Inliner took 253.44ms. Allocated memory is still 138.4MB. Free memory was 55.0MB in the beginning and 84.5MB in the end (delta: -29.5MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2022-11-19 08:32:44,922 INFO L158 Benchmark]: Boogie Preprocessor took 207.32ms. Allocated memory is still 138.4MB. Free memory was 84.5MB in the beginning and 68.0MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-19 08:32:44,923 INFO L158 Benchmark]: RCFGBuilder took 22407.62ms. Allocated memory was 138.4MB in the beginning and 4.7GB in the end (delta: 4.5GB). Free memory was 68.0MB in the beginning and 4.5GB in the end (delta: -4.4GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2022-11-19 08:32:44,925 INFO L158 Benchmark]: TraceAbstraction took 817.49ms. Allocated memory is still 4.7GB. Free memory was 4.5GB in the beginning and 4.4GB in the end (delta: 70.3MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2022-11-19 08:32:44,926 INFO L158 Benchmark]: Witness Printer took 8.13ms. Allocated memory is still 4.7GB. Free memory is still 4.4GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:32:44,928 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory was 58.0MB in the beginning and 58.0MB in the end (delta: 31.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 994.78ms. Allocated memory is still 138.4MB. Free memory was 101.9MB in the beginning and 55.0MB in the end (delta: 46.9MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 253.44ms. Allocated memory is still 138.4MB. Free memory was 55.0MB in the beginning and 84.5MB in the end (delta: -29.5MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 207.32ms. Allocated memory is still 138.4MB. Free memory was 84.5MB in the beginning and 68.0MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * RCFGBuilder took 22407.62ms. Allocated memory was 138.4MB in the beginning and 4.7GB in the end (delta: 4.5GB). Free memory was 68.0MB in the beginning and 4.5GB in the end (delta: -4.4GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * TraceAbstraction took 817.49ms. Allocated memory is still 4.7GB. Free memory was 4.5GB in the beginning and 4.4GB in the end (delta: 70.3MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. * Witness Printer took 8.13ms. Allocated memory is still 4.7GB. Free memory is still 4.4GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 285, overapproximation of bitwiseAnd at line 199. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L37] const SORT_2 var_5 = 0; [L38] const SORT_1 var_38 = 0; [L39] const SORT_4 var_81 = 1; [L40] const SORT_4 var_82 = 0; [L41] const SORT_2 var_94 = 0; [L42] const SORT_2 var_96 = 1; [L43] const SORT_3 var_116 = 0; [L44] const SORT_2 var_158 = 2; [L45] const SORT_4 var_306 = 4; [L46] const SORT_2 var_318 = 4; [L47] const SORT_4 var_320 = 5; [L48] const SORT_4 var_425 = 2; [L49] const SORT_4 var_469 = 3; [L51] SORT_1 input_93; [L52] SORT_1 input_95; [L53] SORT_1 input_100; [L54] SORT_1 input_101; [L55] SORT_1 input_105; [L56] SORT_1 input_106; [L57] SORT_1 input_110; [L58] SORT_1 input_111; [L59] SORT_1 input_115; [L60] SORT_1 input_123; [L61] SORT_1 input_130; [L62] SORT_1 input_137; [L63] SORT_1 input_144; [L64] SORT_1 input_148; [L65] SORT_1 input_149; [L66] SORT_1 input_166; [L67] SORT_1 input_170; [L68] SORT_1 input_171; [L69] SORT_1 input_187; [L70] SORT_1 input_191; [L71] SORT_1 input_192; [L72] SORT_1 input_208; [L73] SORT_1 input_212; [L74] SORT_1 input_213; [L75] SORT_1 input_236; [L76] SORT_1 input_239; [L77] SORT_1 input_255; [L78] SORT_1 input_258; [L79] SORT_1 input_274; [L80] SORT_1 input_277; [L81] SORT_1 input_293; [L82] SORT_1 input_296; [L84] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L85] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L86] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L87] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L88] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L89] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L90] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L91] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L92] SORT_2 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L93] SORT_2 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L94] SORT_2 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L95] SORT_2 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L96] SORT_2 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L97] SORT_2 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L98] SORT_2 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L99] SORT_2 state_36 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L100] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L101] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L102] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L103] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L104] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L105] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L106] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L107] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L108] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L109] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L110] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L111] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L112] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L113] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L114] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L115] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L116] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L117] SORT_1 state_73 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L118] SORT_1 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L119] SORT_1 state_77 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L120] SORT_1 state_79 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L122] SORT_2 init_7_arg_1 = var_5; [L123] state_6 = init_7_arg_1 [L124] SORT_2 init_9_arg_1 = var_5; [L125] state_8 = init_9_arg_1 [L126] SORT_2 init_11_arg_1 = var_5; [L127] state_10 = init_11_arg_1 [L128] SORT_2 init_13_arg_1 = var_5; [L129] state_12 = init_13_arg_1 [L130] SORT_2 init_15_arg_1 = var_5; [L131] state_14 = init_15_arg_1 [L132] SORT_2 init_17_arg_1 = var_5; [L133] state_16 = init_17_arg_1 [L134] SORT_2 init_19_arg_1 = var_5; [L135] state_18 = init_19_arg_1 [L136] SORT_2 init_21_arg_1 = var_5; [L137] state_20 = init_21_arg_1 [L138] SORT_2 init_23_arg_1 = var_5; [L139] state_22 = init_23_arg_1 [L140] SORT_2 init_25_arg_1 = var_5; [L141] state_24 = init_25_arg_1 [L142] SORT_2 init_27_arg_1 = var_5; [L143] state_26 = init_27_arg_1 [L144] SORT_2 init_29_arg_1 = var_5; [L145] state_28 = init_29_arg_1 [L146] SORT_2 init_31_arg_1 = var_5; [L147] state_30 = init_31_arg_1 [L148] SORT_2 init_33_arg_1 = var_5; [L149] state_32 = init_33_arg_1 [L150] SORT_2 init_35_arg_1 = var_5; [L151] state_34 = init_35_arg_1 [L152] SORT_2 init_37_arg_1 = var_5; [L153] state_36 = init_37_arg_1 [L154] SORT_1 init_40_arg_1 = var_38; [L155] state_39 = init_40_arg_1 [L156] SORT_1 init_42_arg_1 = var_38; [L157] state_41 = init_42_arg_1 [L158] SORT_1 init_44_arg_1 = var_38; [L159] state_43 = init_44_arg_1 [L160] SORT_1 init_46_arg_1 = var_38; [L161] state_45 = init_46_arg_1 [L162] SORT_1 init_48_arg_1 = var_38; [L163] state_47 = init_48_arg_1 [L164] SORT_1 init_50_arg_1 = var_38; [L165] state_49 = init_50_arg_1 [L166] SORT_1 init_52_arg_1 = var_38; [L167] state_51 = init_52_arg_1 [L168] SORT_1 init_54_arg_1 = var_38; [L169] state_53 = init_54_arg_1 [L170] SORT_1 init_56_arg_1 = var_38; [L171] state_55 = init_56_arg_1 [L172] SORT_1 init_58_arg_1 = var_38; [L173] state_57 = init_58_arg_1 [L174] SORT_1 init_60_arg_1 = var_38; [L175] state_59 = init_60_arg_1 [L176] SORT_1 init_62_arg_1 = var_38; [L177] state_61 = init_62_arg_1 [L178] SORT_1 init_64_arg_1 = var_38; [L179] state_63 = init_64_arg_1 [L180] SORT_1 init_66_arg_1 = var_38; [L181] state_65 = init_66_arg_1 [L182] SORT_1 init_68_arg_1 = var_38; [L183] state_67 = init_68_arg_1 [L184] SORT_1 init_70_arg_1 = var_38; [L185] state_69 = init_70_arg_1 [L186] SORT_1 init_72_arg_1 = var_38; [L187] state_71 = init_72_arg_1 [L188] SORT_1 init_74_arg_1 = var_38; [L189] state_73 = init_74_arg_1 [L190] SORT_1 init_76_arg_1 = var_38; [L191] state_75 = init_76_arg_1 [L192] SORT_1 init_78_arg_1 = var_38; [L193] state_77 = init_78_arg_1 [L194] SORT_1 init_80_arg_1 = var_38; [L195] state_79 = init_80_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_32=0, state_34=0, state_36=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, var_116=0, var_158=2, var_306=4, var_318=4, var_320=5, var_38=0, var_425=2, var_469=3, var_5=0, var_81=1, var_82=0, var_94=0, var_96=1] [L198] input_93 = __VERIFIER_nondet_uchar() [L199] input_93 = input_93 & mask_SORT_1 [L200] input_95 = __VERIFIER_nondet_uchar() [L201] input_95 = input_95 & mask_SORT_1 [L202] input_100 = __VERIFIER_nondet_uchar() [L203] input_100 = input_100 & mask_SORT_1 [L204] input_101 = __VERIFIER_nondet_uchar() [L205] input_101 = input_101 & mask_SORT_1 [L206] input_105 = __VERIFIER_nondet_uchar() [L207] input_105 = input_105 & mask_SORT_1 [L208] input_106 = __VERIFIER_nondet_uchar() [L209] input_106 = input_106 & mask_SORT_1 [L210] input_110 = __VERIFIER_nondet_uchar() [L211] input_110 = input_110 & mask_SORT_1 [L212] input_111 = __VERIFIER_nondet_uchar() [L213] input_111 = input_111 & mask_SORT_1 [L214] input_115 = __VERIFIER_nondet_uchar() [L215] input_115 = input_115 & mask_SORT_1 [L216] input_123 = __VERIFIER_nondet_uchar() [L217] input_123 = input_123 & mask_SORT_1 [L218] input_130 = __VERIFIER_nondet_uchar() [L219] input_130 = input_130 & mask_SORT_1 [L220] input_137 = __VERIFIER_nondet_uchar() [L221] input_137 = input_137 & mask_SORT_1 [L222] input_144 = __VERIFIER_nondet_uchar() [L223] input_144 = input_144 & mask_SORT_1 [L224] input_148 = __VERIFIER_nondet_uchar() [L225] input_148 = input_148 & mask_SORT_1 [L226] input_149 = __VERIFIER_nondet_uchar() [L227] input_149 = input_149 & mask_SORT_1 [L228] input_166 = __VERIFIER_nondet_uchar() [L229] input_166 = input_166 & mask_SORT_1 [L230] input_170 = __VERIFIER_nondet_uchar() [L231] input_170 = input_170 & mask_SORT_1 [L232] input_171 = __VERIFIER_nondet_uchar() [L233] input_171 = input_171 & mask_SORT_1 [L234] input_187 = __VERIFIER_nondet_uchar() [L235] input_187 = input_187 & mask_SORT_1 [L236] input_191 = __VERIFIER_nondet_uchar() [L237] input_191 = input_191 & mask_SORT_1 [L238] input_192 = __VERIFIER_nondet_uchar() [L239] input_192 = input_192 & mask_SORT_1 [L240] input_208 = __VERIFIER_nondet_uchar() [L241] input_208 = input_208 & mask_SORT_1 [L242] input_212 = __VERIFIER_nondet_uchar() [L243] input_212 = input_212 & mask_SORT_1 [L244] input_213 = __VERIFIER_nondet_uchar() [L245] input_213 = input_213 & mask_SORT_1 [L246] input_236 = __VERIFIER_nondet_uchar() [L247] input_239 = __VERIFIER_nondet_uchar() [L248] input_255 = __VERIFIER_nondet_uchar() [L249] input_258 = __VERIFIER_nondet_uchar() [L250] input_274 = __VERIFIER_nondet_uchar() [L251] input_277 = __VERIFIER_nondet_uchar() [L252] input_293 = __VERIFIER_nondet_uchar() [L253] input_296 = __VERIFIER_nondet_uchar() [L256] SORT_1 var_83_arg_0 = state_47; [L257] SORT_4 var_83_arg_1 = var_81; [L258] SORT_4 var_83_arg_2 = var_82; [L259] SORT_4 var_83 = var_83_arg_0 ? var_83_arg_1 : var_83_arg_2; [L260] SORT_1 var_84_arg_0 = state_57; [L261] SORT_4 var_84_arg_1 = var_81; [L262] SORT_4 var_84_arg_2 = var_82; [L263] SORT_4 var_84 = var_84_arg_0 ? var_84_arg_1 : var_84_arg_2; [L264] SORT_4 var_85_arg_0 = var_83; [L265] SORT_4 var_85_arg_1 = var_84; [L266] SORT_4 var_85 = var_85_arg_0 + var_85_arg_1; [L267] SORT_1 var_86_arg_0 = state_67; [L268] SORT_4 var_86_arg_1 = var_81; [L269] SORT_4 var_86_arg_2 = var_82; [L270] SORT_4 var_86 = var_86_arg_0 ? var_86_arg_1 : var_86_arg_2; [L271] SORT_4 var_87_arg_0 = var_85; [L272] SORT_4 var_87_arg_1 = var_86; [L273] SORT_4 var_87 = var_87_arg_0 + var_87_arg_1; [L274] SORT_1 var_88_arg_0 = state_77; [L275] SORT_4 var_88_arg_1 = var_81; [L276] SORT_4 var_88_arg_2 = var_82; [L277] SORT_4 var_88 = var_88_arg_0 ? var_88_arg_1 : var_88_arg_2; [L278] SORT_4 var_89_arg_0 = var_87; [L279] SORT_4 var_89_arg_1 = var_88; [L280] SORT_4 var_89 = var_89_arg_0 + var_89_arg_1; [L281] var_89 = var_89 & mask_SORT_4 [L282] SORT_4 var_90_arg_0 = var_89; [L283] SORT_4 var_90_arg_1 = var_81; [L284] SORT_1 var_90 = var_90_arg_0 <= var_90_arg_1; [L285] SORT_1 var_91_arg_0 = ~state_79; [L286] var_91_arg_0 = var_91_arg_0 & mask_SORT_1 [L287] SORT_1 var_91_arg_1 = ~var_90; [L288] var_91_arg_1 = var_91_arg_1 & mask_SORT_1 [L289] SORT_1 var_91 = var_91_arg_0 & var_91_arg_1; [L290] var_91 = var_91 & mask_SORT_1 [L291] SORT_1 bad_92_arg_0 = var_91; [L292] CALL __VERIFIER_assert(!(bad_92_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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 [2022-11-19 08:32:44,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/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_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.6.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS --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 ec046432918f7615590c7dfb07eb363eabe222dcf2ec330f11e6ba4379b67439 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:32:47,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:32:47,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:32:47,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:32:47,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:32:47,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:32:47,392 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:32:47,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:32:47,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:32:47,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:32:47,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:32:47,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:32:47,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:32:47,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:32:47,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:32:47,402 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:32:47,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:32:47,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:32:47,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:32:47,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:32:47,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:32:47,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:32:47,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:32:47,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:32:47,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:32:47,417 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:32:47,417 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:32:47,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:32:47,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:32:47,420 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:32:47,420 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:32:47,421 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:32:47,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:32:47,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:32:47,423 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:32:47,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:32:47,424 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:32:47,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:32:47,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:32:47,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:32:47,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:32:47,427 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-19 08:32:47,457 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:32:47,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:32:47,458 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:32:47,458 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:32:47,459 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:32:47,459 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:32:47,460 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:32:47,460 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:32:47,460 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:32:47,460 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:32:47,461 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:32:47,461 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:32:47,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:32:47,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:32:47,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:32:47,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:32:47,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:32:47,463 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 08:32:47,463 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 08:32:47,463 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 08:32:47,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:32:47,464 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:32:47,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:32:47,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:32:47,464 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 08:32:47,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:32:47,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:32:47,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:32:47,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:32:47,466 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:32:47,466 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 08:32:47,466 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 08:32:47,466 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:32:47,467 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:32:47,467 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 08:32:47,467 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_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec046432918f7615590c7dfb07eb363eabe222dcf2ec330f11e6ba4379b67439 [2022-11-19 08:32:47,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:32:47,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:32:47,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:32:47,873 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:32:47,873 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:32:47,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.6.prop1-func-interl.c [2022-11-19 08:32:47,959 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/data/7220ef5db/4dfcf68151eb4ec8aa724906574bbe51/FLAGb1d499e22 [2022-11-19 08:32:48,715 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:32:48,717 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.6.prop1-func-interl.c [2022-11-19 08:32:48,747 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/data/7220ef5db/4dfcf68151eb4ec8aa724906574bbe51/FLAGb1d499e22 [2022-11-19 08:32:48,892 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/data/7220ef5db/4dfcf68151eb4ec8aa724906574bbe51 [2022-11-19 08:32:48,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:32:48,898 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:32:48,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:32:48,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:32:48,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:32:48,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:32:48" (1/1) ... [2022-11-19 08:32:48,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79a6526a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:48, skipping insertion in model container [2022-11-19 08:32:48,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:32:48" (1/1) ... [2022-11-19 08:32:48,920 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:32:48,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:32:49,200 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.6.prop1-func-interl.c[1014,1027] [2022-11-19 08:32:49,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:32:49,593 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:32:49,603 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.6.prop1-func-interl.c[1014,1027] [2022-11-19 08:32:49,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:32:49,782 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:32:49,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:49 WrapperNode [2022-11-19 08:32:49,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:32:49,784 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:32:49,784 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:32:49,785 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:32:49,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:49" (1/1) ... [2022-11-19 08:32:49,854 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:49" (1/1) ... [2022-11-19 08:32:49,978 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2154 [2022-11-19 08:32:49,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:32:49,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:32:49,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:32:49,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:32:49,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:49" (1/1) ... [2022-11-19 08:32:49,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:49" (1/1) ... [2022-11-19 08:32:50,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:49" (1/1) ... [2022-11-19 08:32:50,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:49" (1/1) ... [2022-11-19 08:32:50,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:49" (1/1) ... [2022-11-19 08:32:50,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:49" (1/1) ... [2022-11-19 08:32:50,112 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:49" (1/1) ... [2022-11-19 08:32:50,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:49" (1/1) ... [2022-11-19 08:32:50,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:32:50,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:32:50,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:32:50,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:32:50,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:49" (1/1) ... [2022-11-19 08:32:50,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:32:50,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:32:50,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:32:50,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:32:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:32:50,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:32:50,763 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:32:50,770 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:32:55,287 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:32:55,297 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:32:55,297 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 08:32:55,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:32:55 BoogieIcfgContainer [2022-11-19 08:32:55,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:32:55,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:32:55,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:32:55,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:32:55,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:32:48" (1/3) ... [2022-11-19 08:32:55,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@304a9be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:32:55, skipping insertion in model container [2022-11-19 08:32:55,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:49" (2/3) ... [2022-11-19 08:32:55,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@304a9be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:32:55, skipping insertion in model container [2022-11-19 08:32:55,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:32:55" (3/3) ... [2022-11-19 08:32:55,310 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bakery.6.prop1-func-interl.c [2022-11-19 08:32:55,329 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:32:55,329 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:32:55,392 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:32:55,400 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;@63fadb65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:32:55,401 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:32:55,405 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) [2022-11-19 08:32:55,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 08:32:55,412 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:55,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 08:32:55,413 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:32:55,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:55,421 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-19 08:32:55,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:32:55,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1844719632] [2022-11-19 08:32:55,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:55,436 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 [2022-11-19 08:32:55,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:32:55,441 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 08:32:55,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:32:55,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:55,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-19 08:32:55,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:32:56,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:32:56,410 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:32:56,411 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:32:56,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1844719632] [2022-11-19 08:32:56,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1844719632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:56,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:56,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:32:56,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601033744] [2022-11-19 08:32:56,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:56,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:32:56,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:32:56,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:32:56,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:32:56,460 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) [2022-11-19 08:32:56,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:56,778 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-19 08:32:56,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:32:56,783 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 [2022-11-19 08:32:56,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:56,791 INFO L225 Difference]: With dead ends: 20 [2022-11-19 08:32:56,791 INFO L226 Difference]: Without dead ends: 11 [2022-11-19 08:32:56,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:32:56,799 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:56,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:32:56,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-19 08:32:56,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-19 08:32:56,830 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) [2022-11-19 08:32:56,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-19 08:32:56,832 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-19 08:32:56,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:56,832 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-19 08:32:56,833 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) [2022-11-19 08:32:56,833 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-19 08:32:56,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:32:56,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:56,833 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:56,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:32:57,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:32:57,058 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:32:57,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:57,059 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-19 08:32:57,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:32:57,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290388675] [2022-11-19 08:32:57,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:57,063 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 [2022-11-19 08:32:57,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:32:57,065 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 08:32:57,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:32:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:58,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 1897 conjuncts, 164 conjunts are in the unsatisfiable core [2022-11-19 08:32:58,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:33:00,620 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:33:00,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:33:26,344 WARN L233 SmtUtils]: Spent 21.58s on a formula simplification that was a NOOP. DAG size: 333 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:33:27,452 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:33:27,453 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:33:27,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290388675] [2022-11-19 08:33:27,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [290388675] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:33:27,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1786454516] [2022-11-19 08:33:27,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:27,454 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:33:27,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:33:27,458 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:33:27,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-19 08:33:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:29,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 1897 conjuncts, 166 conjunts are in the unsatisfiable core [2022-11-19 08:33:29,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:33:31,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:33:31,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:38:42,450 WARN L233 SmtUtils]: Spent 5.12m on a formula simplification. DAG size of input: 210 DAG size of output: 154 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:41:33,949 WARN L233 SmtUtils]: Spent 2.57m on a formula simplification that was a NOOP. DAG size: 433 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:41:38,031 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:41:38,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1786454516] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:41:38,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557971875] [2022-11-19 08:41:38,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:41:38,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:41:38,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:41:38,038 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:41:38,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:41:38,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:41:38,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 1897 conjuncts, 169 conjunts are in the unsatisfiable core [2022-11-19 08:41:38,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:41:41,269 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:41:41,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:42:20,751 WARN L233 SmtUtils]: Spent 31.55s on a formula simplification. DAG size of input: 88 DAG size of output: 74 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:44:01,008 WARN L233 SmtUtils]: Spent 1.37m on a formula simplification that was a NOOP. DAG size: 366 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:45:36,787 WARN L233 SmtUtils]: Spent 1.39m on a formula simplification that was a NOOP. DAG size: 370 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:45:38,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:45:38,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557971875] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:45:38,036 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:45:38,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 16 [2022-11-19 08:45:38,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131297817] [2022-11-19 08:45:38,037 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:45:38,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-19 08:45:38,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:45:38,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-19 08:45:38,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=166, Unknown=10, NotChecked=0, Total=240 [2022-11-19 08:45:38,039 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 16 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:45:40,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:45:40,082 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-19 08:45:40,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:45:40,083 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 [2022-11-19 08:45:40,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:45:40,083 INFO L225 Difference]: With dead ends: 16 [2022-11-19 08:45:40,083 INFO L226 Difference]: Without dead ends: 14 [2022-11-19 08:45:40,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 737.1s TimeCoverageRelationStatistics Valid=87, Invalid=209, Unknown=10, NotChecked=0, Total=306 [2022-11-19 08:45:40,086 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:45:40,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 30 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 23 Unchecked, 0.3s Time] [2022-11-19 08:45:40,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-19 08:45:40,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-19 08:45:40,091 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) [2022-11-19 08:45:40,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-19 08:45:40,092 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-19 08:45:40,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:45:40,093 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-19 08:45:40,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:45:40,093 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-19 08:45:40,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 08:45:40,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:45:40,094 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-19 08:45:40,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:45:40,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:45:40,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 08:45:40,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/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_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:45:40,695 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:45:40,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:45:40,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-19 08:45:40,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:45:40,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1704633734] [2022-11-19 08:45:40,698 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:45:40,698 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 [2022-11-19 08:45:40,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:45:40,699 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 08:45:40,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff654dad-4d4e-4434-a096-92cd50c7211b/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:45:42,180 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:45:42,180 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:45:42,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 3628 conjuncts, 344 conjunts are in the unsatisfiable core [2022-11-19 08:45:42,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:45:54,121 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:45:54,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:47:20,772 WARN L233 SmtUtils]: Spent 1.40m on a formula simplification. DAG size of input: 139 DAG size of output: 115 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)