./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal185.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal185.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh --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 ec2e645b3322e9e18b354a0ed429ba851421510da82c5d51615a96c905ed7052 --- 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-2329fc7 [2022-12-14 07:52:09,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:52:09,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:52:09,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:52:09,653 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:52:09,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:52:09,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:52:09,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:52:09,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:52:09,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:52:09,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:52:09,661 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:52:09,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:52:09,662 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:52:09,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:52:09,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:52:09,665 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:52:09,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:52:09,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:52:09,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:52:09,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:52:09,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:52:09,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:52:09,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:52:09,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:52:09,677 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:52:09,677 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:52:09,678 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:52:09,678 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:52:09,679 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:52:09,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:52:09,680 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:52:09,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:52:09,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:52:09,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:52:09,682 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:52:09,683 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:52:09,683 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:52:09,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:52:09,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:52:09,685 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:52:09,685 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 07:52:09,707 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:52:09,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:52:09,707 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:52:09,713 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:52:09,714 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:52:09,714 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:52:09,714 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:52:09,714 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:52:09,714 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:52:09,714 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:52:09,715 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:52:09,715 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:52:09,715 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:52:09,715 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:52:09,715 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:52:09,715 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:52:09,715 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:52:09,715 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:52:09,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:52:09,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:52:09,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:52:09,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:52:09,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:52:09,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:52:09,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:52:09,716 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:52:09,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:52:09,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:52:09,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:52:09,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:52:09,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:52:09,717 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:52:09,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:52:09,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:52:09,717 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:52:09,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:52:09,717 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:52:09,717 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:52:09,717 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_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec2e645b3322e9e18b354a0ed429ba851421510da82c5d51615a96c905ed7052 [2022-12-14 07:52:09,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:52:09,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:52:09,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:52:09,916 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:52:09,917 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:52:09,918 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal185.c [2022-12-14 07:52:12,524 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:52:12,779 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:52:12,780 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal185.c [2022-12-14 07:52:12,793 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/data/12eeb597f/9cdbf6b2fc8f47d99a176ae68b7a3b15/FLAGe97373964 [2022-12-14 07:52:12,803 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/data/12eeb597f/9cdbf6b2fc8f47d99a176ae68b7a3b15 [2022-12-14 07:52:12,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:52:12,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:52:12,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:52:12,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:52:12,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:52:12,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:52:12" (1/1) ... [2022-12-14 07:52:12,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@453e6c4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:12, skipping insertion in model container [2022-12-14 07:52:12,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:52:12" (1/1) ... [2022-12-14 07:52:12,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:52:12,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:52:12,994 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal185.c[1107,1120] [2022-12-14 07:52:13,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:52:13,286 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:52:13,293 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal185.c[1107,1120] [2022-12-14 07:52:13,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:52:13,431 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:52:13,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:13 WrapperNode [2022-12-14 07:52:13,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:52:13,432 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:52:13,432 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:52:13,432 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:52:13,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:13" (1/1) ... [2022-12-14 07:52:13,471 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:13" (1/1) ... [2022-12-14 07:52:13,560 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3467 [2022-12-14 07:52:13,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:52:13,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:52:13,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:52:13,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:52:13,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:13" (1/1) ... [2022-12-14 07:52:13,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:13" (1/1) ... [2022-12-14 07:52:13,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:13" (1/1) ... [2022-12-14 07:52:13,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:13" (1/1) ... [2022-12-14 07:52:13,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:13" (1/1) ... [2022-12-14 07:52:13,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:13" (1/1) ... [2022-12-14 07:52:13,626 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:13" (1/1) ... [2022-12-14 07:52:13,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:13" (1/1) ... [2022-12-14 07:52:13,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:52:13,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:52:13,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:52:13,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:52:13,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:13" (1/1) ... [2022-12-14 07:52:13,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:52:13,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:52:13,675 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:52:13,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:52:13,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:52:13,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:52:14,137 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:52:14,139 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:55:47,507 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:55:47,535 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:55:47,535 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 07:55:47,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:55:47 BoogieIcfgContainer [2022-12-14 07:55:47,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:55:47,539 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:55:47,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:55:47,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:55:47,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:52:12" (1/3) ... [2022-12-14 07:55:47,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@411b447e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:55:47, skipping insertion in model container [2022-12-14 07:55:47,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:13" (2/3) ... [2022-12-14 07:55:47,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@411b447e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:55:47, skipping insertion in model container [2022-12-14 07:55:47,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:55:47" (3/3) ... [2022-12-14 07:55:47,543 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal185.c [2022-12-14 07:55:47,555 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:55:47,556 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 07:55:47,592 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:55:47,597 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;@5e133bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:55:47,597 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 07:55:47,600 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) [2022-12-14 07:55:47,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 07:55:47,605 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:55:47,605 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 07:55:47,606 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:55:47,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:55:47,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-12-14 07:55:47,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:55:47,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823109986] [2022-12-14 07:55:47,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:55:47,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:55:47,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 07:55:47,876 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 07:55:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 07:55:48,025 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 07:55:48,026 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 07:55:48,027 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 07:55:48,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:55:48,032 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 07:55:48,035 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 07:55:48,055 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-14 07:55:48,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 07:55:48 BoogieIcfgContainer [2022-12-14 07:55:48,066 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 07:55:48,066 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 07:55:48,066 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 07:55:48,066 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 07:55:48,067 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:55:47" (3/4) ... [2022-12-14 07:55:48,069 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 07:55:48,069 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 07:55:48,070 INFO L158 Benchmark]: Toolchain (without parser) took 215263.83ms. Allocated memory was 127.9MB in the beginning and 975.2MB in the end (delta: 847.2MB). Free memory was 86.2MB in the beginning and 658.1MB in the end (delta: -571.9MB). Peak memory consumption was 275.9MB. Max. memory is 16.1GB. [2022-12-14 07:55:48,070 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory is still 95.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:55:48,071 INFO L158 Benchmark]: CACSL2BoogieTranslator took 624.78ms. Allocated memory was 127.9MB in the beginning and 159.4MB in the end (delta: 31.5MB). Free memory was 85.7MB in the beginning and 109.3MB in the end (delta: -23.5MB). Peak memory consumption was 72.4MB. Max. memory is 16.1GB. [2022-12-14 07:55:48,071 INFO L158 Benchmark]: Boogie Procedure Inliner took 127.99ms. Allocated memory is still 159.4MB. Free memory was 109.3MB in the beginning and 79.9MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-12-14 07:55:48,071 INFO L158 Benchmark]: Boogie Preprocessor took 92.19ms. Allocated memory is still 159.4MB. Free memory was 79.9MB in the beginning and 66.0MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 07:55:48,072 INFO L158 Benchmark]: RCFGBuilder took 213884.28ms. Allocated memory was 159.4MB in the beginning and 975.2MB in the end (delta: 815.8MB). Free memory was 66.0MB in the beginning and 737.8MB in the end (delta: -671.8MB). Peak memory consumption was 568.7MB. Max. memory is 16.1GB. [2022-12-14 07:55:48,072 INFO L158 Benchmark]: TraceAbstraction took 527.01ms. Allocated memory is still 975.2MB. Free memory was 737.8MB in the beginning and 658.1MB in the end (delta: 79.7MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. [2022-12-14 07:55:48,072 INFO L158 Benchmark]: Witness Printer took 3.02ms. Allocated memory is still 975.2MB. Free memory is still 658.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:55:48,074 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory is still 95.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 624.78ms. Allocated memory was 127.9MB in the beginning and 159.4MB in the end (delta: 31.5MB). Free memory was 85.7MB in the beginning and 109.3MB in the end (delta: -23.5MB). Peak memory consumption was 72.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 127.99ms. Allocated memory is still 159.4MB. Free memory was 109.3MB in the beginning and 79.9MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.19ms. Allocated memory is still 159.4MB. Free memory was 79.9MB in the beginning and 66.0MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * RCFGBuilder took 213884.28ms. Allocated memory was 159.4MB in the beginning and 975.2MB in the end (delta: 815.8MB). Free memory was 66.0MB in the beginning and 737.8MB in the end (delta: -671.8MB). Peak memory consumption was 568.7MB. Max. memory is 16.1GB. * TraceAbstraction took 527.01ms. Allocated memory is still 975.2MB. Free memory was 737.8MB in the beginning and 658.1MB in the end (delta: 79.7MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. * Witness Printer took 3.02ms. Allocated memory is still 975.2MB. Free memory is still 658.1MB. 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 388, overapproximation of bitwiseOr at line 404, overapproximation of bitwiseAnd at line 293. 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_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 32); [L29] const SORT_7 msb_SORT_7 = (SORT_7)1 << (32 - 1); [L31] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 2); [L32] const SORT_9 msb_SORT_9 = (SORT_9)1 << (2 - 1); [L34] const SORT_20 mask_SORT_20 = (SORT_20)-1 >> (sizeof(SORT_20) * 8 - 3); [L35] const SORT_20 msb_SORT_20 = (SORT_20)1 << (3 - 1); [L37] const SORT_167 mask_SORT_167 = (SORT_167)-1 >> (sizeof(SORT_167) * 8 - 31); [L38] const SORT_167 msb_SORT_167 = (SORT_167)1 << (31 - 1); [L40] const SORT_1 var_90 = 0; [L41] const SORT_7 var_94 = 0; [L42] const SORT_1 var_117 = 1; [L43] const SORT_7 var_124 = 1618477080; [L44] const SORT_9 var_141 = 0; [L45] const SORT_9 var_150 = 2; [L46] const SORT_9 var_154 = 3; [L47] const SORT_9 var_165 = 1; [L48] const SORT_167 var_168 = 1618477056; [L49] const SORT_167 var_171 = 1618478076; [L50] const SORT_20 var_216 = 0; [L51] const SORT_20 var_220 = 2; [L52] const SORT_20 var_222 = 4; [L53] const SORT_20 var_235 = 3; [L54] const SORT_20 var_320 = 5; [L55] const SORT_20 var_322 = 7; [L56] const SORT_20 var_335 = 6; [L57] const SORT_20 var_369 = 1; [L59] SORT_1 input_2; [L60] SORT_1 input_3; [L61] SORT_1 input_4; [L62] SORT_1 input_5; [L63] SORT_1 input_6; [L64] SORT_7 input_8; [L65] SORT_9 input_10; [L66] SORT_1 input_11; [L67] SORT_7 input_12; [L68] SORT_7 input_13; [L69] SORT_1 input_14; [L70] SORT_7 input_15; [L71] SORT_1 input_16; [L72] SORT_1 input_17; [L73] SORT_1 input_18; [L74] SORT_7 input_19; [L75] SORT_20 input_21; [L76] SORT_7 input_22; [L77] SORT_1 input_23; [L78] SORT_1 input_24; [L79] SORT_7 input_25; [L80] SORT_1 input_26; [L81] SORT_1 input_27; [L82] SORT_1 input_28; [L83] SORT_1 input_29; [L84] SORT_1 input_30; [L85] SORT_1 input_31; [L86] SORT_9 input_32; [L87] SORT_9 input_33; [L88] SORT_7 input_34; [L89] SORT_7 input_35; [L90] SORT_1 input_36; [L91] SORT_9 input_37; [L92] SORT_9 input_38; [L93] SORT_7 input_39; [L94] SORT_7 input_40; [L95] SORT_1 input_41; [L96] SORT_1 input_42; [L97] SORT_1 input_43; [L98] SORT_7 input_44; [L99] SORT_7 input_45; [L100] SORT_1 input_46; [L101] SORT_1 input_47; [L102] SORT_1 input_48; [L103] SORT_1 input_49; [L104] SORT_9 input_50; [L105] SORT_9 input_51; [L106] SORT_1 input_52; [L107] SORT_1 input_53; [L108] SORT_1 input_54; [L109] SORT_1 input_55; [L110] SORT_1 input_56; [L111] SORT_1 input_57; [L112] SORT_1 input_58; [L113] SORT_1 input_59; [L114] SORT_1 input_60; [L115] SORT_1 input_61; [L116] SORT_9 input_62; [L117] SORT_9 input_63; [L118] SORT_1 input_64; [L119] SORT_1 input_65; [L120] SORT_1 input_66; [L121] SORT_1 input_67; [L122] SORT_9 input_68; [L123] SORT_9 input_69; [L124] SORT_7 input_70; [L125] SORT_7 input_71; [L126] SORT_7 input_72; [L127] SORT_7 input_73; [L128] SORT_9 input_74; [L129] SORT_9 input_75; [L130] SORT_7 input_76; [L131] SORT_7 input_77; [L132] SORT_7 input_78; [L133] SORT_7 input_79; [L134] SORT_20 input_80; [L135] SORT_20 input_81; [L136] SORT_1 input_82; [L137] SORT_1 input_83; [L138] SORT_7 input_84; [L139] SORT_7 input_85; [L140] SORT_7 input_86; [L141] SORT_7 input_87; [L142] SORT_1 input_88; [L143] SORT_1 input_89; [L145] SORT_1 state_91 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L146] SORT_7 state_95 = __VERIFIER_nondet_uint() & mask_SORT_7; [L147] SORT_1 state_97 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L148] SORT_7 state_105 = __VERIFIER_nondet_uint() & mask_SORT_7; [L149] SORT_7 state_121 = __VERIFIER_nondet_uint() & mask_SORT_7; [L150] SORT_1 state_126 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L151] SORT_1 state_131 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L152] SORT_7 state_136 = __VERIFIER_nondet_uint() & mask_SORT_7; [L153] SORT_9 state_142 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L154] SORT_1 state_145 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L155] SORT_9 state_151 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L156] SORT_1 state_159 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L157] SORT_1 state_203 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L158] SORT_1 state_206 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L159] SORT_20 state_217 = __VERIFIER_nondet_uchar() & mask_SORT_20; [L160] SORT_9 state_248 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L161] SORT_9 state_253 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L162] SORT_1 state_257 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L163] SORT_1 state_264 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L164] SORT_1 state_307 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L165] SORT_1 state_310 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L166] SORT_7 state_347 = __VERIFIER_nondet_uint() & mask_SORT_7; [L167] SORT_1 state_350 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L168] SORT_7 state_358 = __VERIFIER_nondet_uint() & mask_SORT_7; [L169] SORT_7 state_447 = __VERIFIER_nondet_uint() & mask_SORT_7; [L170] SORT_7 state_454 = __VERIFIER_nondet_uint() & mask_SORT_7; [L171] SORT_7 state_606 = __VERIFIER_nondet_uint() & mask_SORT_7; [L172] SORT_1 state_610 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L173] SORT_1 state_615 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L174] SORT_7 state_620 = __VERIFIER_nondet_uint() & mask_SORT_7; [L175] SORT_9 state_625 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L176] SORT_1 state_628 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L177] SORT_9 state_633 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L178] SORT_1 state_640 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L179] SORT_1 state_671 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L180] SORT_1 state_674 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L181] SORT_20 state_684 = __VERIFIER_nondet_uchar() & mask_SORT_20; [L182] SORT_9 state_712 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L183] SORT_9 state_717 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L184] SORT_1 state_721 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L185] SORT_1 state_728 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L186] SORT_1 state_763 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L187] SORT_1 state_766 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L188] SORT_7 state_800 = __VERIFIER_nondet_uint() & mask_SORT_7; [L189] SORT_1 state_803 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L190] SORT_7 state_811 = __VERIFIER_nondet_uint() & mask_SORT_7; [L191] SORT_7 state_899 = __VERIFIER_nondet_uint() & mask_SORT_7; [L192] SORT_7 state_906 = __VERIFIER_nondet_uint() & mask_SORT_7; [L194] SORT_1 init_92_arg_1 = var_90; [L195] state_91 = init_92_arg_1 [L196] SORT_7 init_96_arg_1 = var_94; [L197] state_95 = init_96_arg_1 [L198] SORT_1 init_98_arg_1 = var_90; [L199] state_97 = init_98_arg_1 [L200] SORT_7 init_106_arg_1 = var_94; [L201] state_105 = init_106_arg_1 [L202] SORT_7 init_122_arg_1 = var_94; [L203] state_121 = init_122_arg_1 [L204] SORT_1 init_127_arg_1 = var_90; [L205] state_126 = init_127_arg_1 [L206] SORT_1 init_132_arg_1 = var_90; [L207] state_131 = init_132_arg_1 [L208] SORT_7 init_137_arg_1 = var_94; [L209] state_136 = init_137_arg_1 [L210] SORT_9 init_143_arg_1 = var_141; [L211] state_142 = init_143_arg_1 [L212] SORT_1 init_146_arg_1 = var_90; [L213] state_145 = init_146_arg_1 [L214] SORT_9 init_152_arg_1 = var_141; [L215] state_151 = init_152_arg_1 [L216] SORT_1 init_160_arg_1 = var_90; [L217] state_159 = init_160_arg_1 [L218] SORT_1 init_204_arg_1 = var_90; [L219] state_203 = init_204_arg_1 [L220] SORT_1 init_207_arg_1 = var_90; [L221] state_206 = init_207_arg_1 [L222] SORT_20 init_218_arg_1 = var_216; [L223] state_217 = init_218_arg_1 [L224] SORT_9 init_249_arg_1 = var_141; [L225] state_248 = init_249_arg_1 [L226] SORT_9 init_254_arg_1 = var_141; [L227] state_253 = init_254_arg_1 [L228] SORT_1 init_258_arg_1 = var_90; [L229] state_257 = init_258_arg_1 [L230] SORT_1 init_265_arg_1 = var_90; [L231] state_264 = init_265_arg_1 [L232] SORT_1 init_308_arg_1 = var_90; [L233] state_307 = init_308_arg_1 [L234] SORT_1 init_311_arg_1 = var_90; [L235] state_310 = init_311_arg_1 [L236] SORT_7 init_348_arg_1 = var_94; [L237] state_347 = init_348_arg_1 [L238] SORT_1 init_351_arg_1 = var_90; [L239] state_350 = init_351_arg_1 [L240] SORT_7 init_359_arg_1 = var_94; [L241] state_358 = init_359_arg_1 [L242] SORT_7 init_448_arg_1 = var_94; [L243] state_447 = init_448_arg_1 [L244] SORT_7 init_455_arg_1 = var_94; [L245] state_454 = init_455_arg_1 [L246] SORT_7 init_607_arg_1 = var_94; [L247] state_606 = init_607_arg_1 [L248] SORT_1 init_611_arg_1 = var_90; [L249] state_610 = init_611_arg_1 [L250] SORT_1 init_616_arg_1 = var_90; [L251] state_615 = init_616_arg_1 [L252] SORT_7 init_621_arg_1 = var_94; [L253] state_620 = init_621_arg_1 [L254] SORT_9 init_626_arg_1 = var_141; [L255] state_625 = init_626_arg_1 [L256] SORT_1 init_629_arg_1 = var_90; [L257] state_628 = init_629_arg_1 [L258] SORT_9 init_634_arg_1 = var_141; [L259] state_633 = init_634_arg_1 [L260] SORT_1 init_641_arg_1 = var_90; [L261] state_640 = init_641_arg_1 [L262] SORT_1 init_672_arg_1 = var_90; [L263] state_671 = init_672_arg_1 [L264] SORT_1 init_675_arg_1 = var_90; [L265] state_674 = init_675_arg_1 [L266] SORT_20 init_685_arg_1 = var_216; [L267] state_684 = init_685_arg_1 [L268] SORT_9 init_713_arg_1 = var_141; [L269] state_712 = init_713_arg_1 [L270] SORT_9 init_718_arg_1 = var_141; [L271] state_717 = init_718_arg_1 [L272] SORT_1 init_722_arg_1 = var_90; [L273] state_721 = init_722_arg_1 [L274] SORT_1 init_729_arg_1 = var_90; [L275] state_728 = init_729_arg_1 [L276] SORT_1 init_764_arg_1 = var_90; [L277] state_763 = init_764_arg_1 [L278] SORT_1 init_767_arg_1 = var_90; [L279] state_766 = init_767_arg_1 [L280] SORT_7 init_801_arg_1 = var_94; [L281] state_800 = init_801_arg_1 [L282] SORT_1 init_804_arg_1 = var_90; [L283] state_803 = init_804_arg_1 [L284] SORT_7 init_812_arg_1 = var_94; [L285] state_811 = init_812_arg_1 [L286] SORT_7 init_900_arg_1 = var_94; [L287] state_899 = init_900_arg_1 [L288] SORT_7 init_907_arg_1 = var_94; [L289] state_906 = init_907_arg_1 VAL [init_106_arg_1=0, init_122_arg_1=0, init_127_arg_1=0, init_132_arg_1=0, init_137_arg_1=0, init_143_arg_1=0, init_146_arg_1=0, init_152_arg_1=0, init_160_arg_1=0, init_204_arg_1=0, init_207_arg_1=0, init_218_arg_1=0, init_249_arg_1=0, init_254_arg_1=0, init_258_arg_1=0, init_265_arg_1=0, init_308_arg_1=0, init_311_arg_1=0, init_348_arg_1=0, init_351_arg_1=0, init_359_arg_1=0, init_448_arg_1=0, init_455_arg_1=0, init_607_arg_1=0, init_611_arg_1=0, init_616_arg_1=0, init_621_arg_1=0, init_626_arg_1=0, init_629_arg_1=0, init_634_arg_1=0, init_641_arg_1=0, init_672_arg_1=0, init_675_arg_1=0, init_685_arg_1=0, init_713_arg_1=0, init_718_arg_1=0, init_722_arg_1=0, init_729_arg_1=0, init_764_arg_1=0, init_767_arg_1=0, init_801_arg_1=0, init_804_arg_1=0, init_812_arg_1=0, init_900_arg_1=0, init_907_arg_1=0, init_92_arg_1=0, init_96_arg_1=0, init_98_arg_1=0, mask_SORT_1=1, mask_SORT_167=4294967295, mask_SORT_20=7, mask_SORT_7=4294967295, mask_SORT_9=3, msb_SORT_1=1, msb_SORT_167=1073741824, msb_SORT_20=4, msb_SORT_7=2147483648, msb_SORT_9=2, state_105=0, state_121=0, state_126=0, state_131=0, state_136=0, state_142=0, state_145=0, state_151=0, state_159=0, state_203=0, state_206=0, state_217=0, state_248=0, state_253=0, state_257=0, state_264=0, state_307=0, state_310=0, state_347=0, state_350=0, state_358=0, state_447=0, state_454=0, state_606=0, state_610=0, state_615=0, state_620=0, state_625=0, state_628=0, state_633=0, state_640=0, state_671=0, state_674=0, state_684=0, state_712=0, state_717=0, state_721=0, state_728=0, state_763=0, state_766=0, state_800=0, state_803=0, state_811=0, state_899=0, state_906=0, state_91=0, state_95=0, state_97=0, var_117=1, var_124=1618477080, var_141=0, var_150=2, var_154=3, var_165=1, var_168=1618477056, var_171=1618478076, var_216=0, var_220=2, var_222=4, var_235=3, var_320=5, var_322=7, var_335=6, var_369=1, var_90=0, var_94=0] [L292] input_2 = __VERIFIER_nondet_uchar() [L293] input_2 = input_2 & mask_SORT_1 [L294] input_3 = __VERIFIER_nondet_uchar() [L295] input_3 = input_3 & mask_SORT_1 [L296] input_4 = __VERIFIER_nondet_uchar() [L297] input_4 = input_4 & mask_SORT_1 [L298] input_5 = __VERIFIER_nondet_uchar() [L299] input_6 = __VERIFIER_nondet_uchar() [L300] input_8 = __VERIFIER_nondet_uint() [L301] input_8 = input_8 & mask_SORT_7 [L302] input_10 = __VERIFIER_nondet_uchar() [L303] input_11 = __VERIFIER_nondet_uchar() [L304] input_12 = __VERIFIER_nondet_uint() [L305] input_12 = input_12 & mask_SORT_7 [L306] input_13 = __VERIFIER_nondet_uint() [L307] input_14 = __VERIFIER_nondet_uchar() [L308] input_14 = input_14 & mask_SORT_1 [L309] input_15 = __VERIFIER_nondet_uint() [L310] input_16 = __VERIFIER_nondet_uchar() [L311] input_16 = input_16 & mask_SORT_1 [L312] input_17 = __VERIFIER_nondet_uchar() [L313] input_18 = __VERIFIER_nondet_uchar() [L314] input_18 = input_18 & mask_SORT_1 [L315] input_19 = __VERIFIER_nondet_uint() [L316] input_21 = __VERIFIER_nondet_uchar() [L317] input_22 = __VERIFIER_nondet_uint() [L318] input_23 = __VERIFIER_nondet_uchar() [L319] input_24 = __VERIFIER_nondet_uchar() [L320] input_25 = __VERIFIER_nondet_uint() [L321] input_26 = __VERIFIER_nondet_uchar() [L322] input_27 = __VERIFIER_nondet_uchar() [L323] input_28 = __VERIFIER_nondet_uchar() [L324] input_29 = __VERIFIER_nondet_uchar() [L325] input_30 = __VERIFIER_nondet_uchar() [L326] input_31 = __VERIFIER_nondet_uchar() [L327] input_32 = __VERIFIER_nondet_uchar() [L328] input_33 = __VERIFIER_nondet_uchar() [L329] input_34 = __VERIFIER_nondet_uint() [L330] input_35 = __VERIFIER_nondet_uint() [L331] input_36 = __VERIFIER_nondet_uchar() [L332] input_37 = __VERIFIER_nondet_uchar() [L333] input_38 = __VERIFIER_nondet_uchar() [L334] input_39 = __VERIFIER_nondet_uint() [L335] input_40 = __VERIFIER_nondet_uint() [L336] input_41 = __VERIFIER_nondet_uchar() [L337] input_42 = __VERIFIER_nondet_uchar() [L338] input_43 = __VERIFIER_nondet_uchar() [L339] input_44 = __VERIFIER_nondet_uint() [L340] input_45 = __VERIFIER_nondet_uint() [L341] input_46 = __VERIFIER_nondet_uchar() [L342] input_47 = __VERIFIER_nondet_uchar() [L343] input_48 = __VERIFIER_nondet_uchar() [L344] input_49 = __VERIFIER_nondet_uchar() [L345] input_50 = __VERIFIER_nondet_uchar() [L346] input_51 = __VERIFIER_nondet_uchar() [L347] input_52 = __VERIFIER_nondet_uchar() [L348] input_53 = __VERIFIER_nondet_uchar() [L349] input_54 = __VERIFIER_nondet_uchar() [L350] input_55 = __VERIFIER_nondet_uchar() [L351] input_56 = __VERIFIER_nondet_uchar() [L352] input_57 = __VERIFIER_nondet_uchar() [L353] input_58 = __VERIFIER_nondet_uchar() [L354] input_59 = __VERIFIER_nondet_uchar() [L355] input_60 = __VERIFIER_nondet_uchar() [L356] input_61 = __VERIFIER_nondet_uchar() [L357] input_62 = __VERIFIER_nondet_uchar() [L358] input_63 = __VERIFIER_nondet_uchar() [L359] input_64 = __VERIFIER_nondet_uchar() [L360] input_65 = __VERIFIER_nondet_uchar() [L361] input_66 = __VERIFIER_nondet_uchar() [L362] input_67 = __VERIFIER_nondet_uchar() [L363] input_68 = __VERIFIER_nondet_uchar() [L364] input_69 = __VERIFIER_nondet_uchar() [L365] input_70 = __VERIFIER_nondet_uint() [L366] input_71 = __VERIFIER_nondet_uint() [L367] input_72 = __VERIFIER_nondet_uint() [L368] input_73 = __VERIFIER_nondet_uint() [L369] input_74 = __VERIFIER_nondet_uchar() [L370] input_75 = __VERIFIER_nondet_uchar() [L371] input_76 = __VERIFIER_nondet_uint() [L372] input_77 = __VERIFIER_nondet_uint() [L373] input_78 = __VERIFIER_nondet_uint() [L374] input_79 = __VERIFIER_nondet_uint() [L375] input_80 = __VERIFIER_nondet_uchar() [L376] input_81 = __VERIFIER_nondet_uchar() [L377] input_82 = __VERIFIER_nondet_uchar() [L378] input_83 = __VERIFIER_nondet_uchar() [L379] input_84 = __VERIFIER_nondet_uint() [L380] input_85 = __VERIFIER_nondet_uint() [L381] input_86 = __VERIFIER_nondet_uint() [L382] input_87 = __VERIFIER_nondet_uint() [L383] input_88 = __VERIFIER_nondet_uchar() [L384] input_89 = __VERIFIER_nondet_uchar() [L387] SORT_1 var_93_arg_0 = state_91; [L388] SORT_1 var_93 = ~var_93_arg_0; [L389] SORT_1 var_99_arg_0 = state_97; [L390] SORT_7 var_99_arg_1 = state_95; [L391] SORT_7 var_99_arg_2 = input_19; [L392] SORT_7 var_99 = var_99_arg_0 ? var_99_arg_1 : var_99_arg_2; [L393] SORT_7 var_100_arg_0 = var_99; [L394] SORT_1 var_100 = var_100_arg_0 >> 20; [L395] SORT_1 var_101_arg_0 = var_100; [L396] SORT_1 var_101 = ~var_101_arg_0; [L397] SORT_7 var_102_arg_0 = var_99; [L398] SORT_1 var_102 = var_102_arg_0 >> 22; [L399] SORT_1 var_103_arg_0 = var_101; [L400] SORT_1 var_103_arg_1 = var_102; [L401] SORT_1 var_103 = var_103_arg_0 & var_103_arg_1; [L402] SORT_1 var_104_arg_0 = var_103; [L403] SORT_1 var_104_arg_1 = input_17; [L404] SORT_1 var_104 = var_104_arg_0 | var_104_arg_1; [L405] var_104 = var_104 & mask_SORT_1 [L406] SORT_1 var_107_arg_0 = state_97; [L407] SORT_7 var_107_arg_1 = state_105; [L408] SORT_7 var_107_arg_2 = input_19; [L409] SORT_7 var_107 = var_107_arg_0 ? var_107_arg_1 : var_107_arg_2; [L410] SORT_7 var_108_arg_0 = var_107; [L411] SORT_1 var_108 = var_108_arg_0 >> 20; [L412] SORT_1 var_109_arg_0 = var_108; [L413] SORT_1 var_109 = ~var_109_arg_0; [L414] SORT_7 var_110_arg_0 = var_107; [L415] SORT_1 var_110 = var_110_arg_0 >> 22; [L416] SORT_1 var_111_arg_0 = var_109; [L417] SORT_1 var_111_arg_1 = var_110; [L418] SORT_1 var_111 = var_111_arg_0 & var_111_arg_1; [L419] SORT_1 var_112_arg_0 = var_111; [L420] SORT_1 var_112_arg_1 = input_17; [L421] SORT_1 var_112 = var_112_arg_0 | var_112_arg_1; [L422] var_112 = var_112 & mask_SORT_1 [L423] SORT_1 var_113_arg_0 = var_104; [L424] SORT_1 var_113_arg_1 = var_112; [L425] SORT_1 var_113 = var_113_arg_0 == var_113_arg_1; [L426] SORT_1 var_114_arg_0 = var_93; [L427] SORT_1 var_114_arg_1 = var_113; [L428] SORT_1 var_114 = var_114_arg_0 | var_114_arg_1; [L429] SORT_1 var_118_arg_0 = var_114; [L430] SORT_1 var_118 = ~var_118_arg_0; [L431] SORT_1 var_119_arg_0 = var_117; [L432] SORT_1 var_119_arg_1 = var_118; [L433] SORT_1 var_119 = var_119_arg_0 & var_119_arg_1; [L434] var_119 = var_119 & mask_SORT_1 [L435] SORT_1 bad_120_arg_0 = var_119; [L436] CALL __VERIFIER_assert(!(bad_120_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 07:55:48,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/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_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal185.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh --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 ec2e645b3322e9e18b354a0ed429ba851421510da82c5d51615a96c905ed7052 --- 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-2329fc7 [2022-12-14 07:55:49,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:55:49,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:55:49,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:55:49,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:55:49,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:55:49,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:55:49,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:55:49,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:55:49,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:55:49,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:55:49,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:55:49,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:55:49,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:55:49,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:55:49,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:55:49,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:55:49,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:55:49,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:55:49,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:55:49,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:55:49,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:55:49,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:55:49,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:55:49,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:55:49,817 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:55:49,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:55:49,818 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:55:49,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:55:49,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:55:49,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:55:49,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:55:49,820 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:55:49,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:55:49,821 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:55:49,821 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:55:49,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:55:49,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:55:49,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:55:49,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:55:49,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:55:49,830 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-12-14 07:55:49,846 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:55:49,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:55:49,846 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:55:49,846 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:55:49,847 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:55:49,847 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:55:49,847 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:55:49,847 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:55:49,847 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:55:49,847 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:55:49,848 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:55:49,848 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:55:49,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:55:49,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:55:49,848 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:55:49,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:55:49,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:55:49,849 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 07:55:49,849 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 07:55:49,849 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 07:55:49,849 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:55:49,849 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:55:49,849 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:55:49,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:55:49,850 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 07:55:49,850 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:55:49,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:55:49,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:55:49,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:55:49,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:55:49,850 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 07:55:49,850 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 07:55:49,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:55:49,851 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:55:49,851 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 07:55:49,851 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_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec2e645b3322e9e18b354a0ed429ba851421510da82c5d51615a96c905ed7052 [2022-12-14 07:55:50,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:55:50,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:55:50,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:55:50,104 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:55:50,104 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:55:50,105 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal185.c [2022-12-14 07:55:52,676 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:55:52,926 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:55:52,927 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal185.c [2022-12-14 07:55:52,942 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/data/e5bb69f95/fde67bebb9514c6d9df1ca2b8326f85c/FLAG5499ca971 [2022-12-14 07:55:52,952 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/data/e5bb69f95/fde67bebb9514c6d9df1ca2b8326f85c [2022-12-14 07:55:52,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:55:52,955 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:55:52,956 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:55:52,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:55:52,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:55:52,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:55:52" (1/1) ... [2022-12-14 07:55:52,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@375733d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:52, skipping insertion in model container [2022-12-14 07:55:52,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:55:52" (1/1) ... [2022-12-14 07:55:52,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:55:53,030 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:55:53,192 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal185.c[1107,1120] [2022-12-14 07:55:53,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:55:53,514 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:55:53,522 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal185.c[1107,1120] [2022-12-14 07:55:53,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:55:53,661 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:55:53,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:53 WrapperNode [2022-12-14 07:55:53,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:55:53,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:55:53,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:55:53,662 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:55:53,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:53" (1/1) ... [2022-12-14 07:55:53,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:53" (1/1) ... [2022-12-14 07:55:53,789 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3467 [2022-12-14 07:55:53,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:55:53,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:55:53,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:55:53,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:55:53,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:53" (1/1) ... [2022-12-14 07:55:53,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:53" (1/1) ... [2022-12-14 07:55:53,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:53" (1/1) ... [2022-12-14 07:55:53,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:53" (1/1) ... [2022-12-14 07:55:53,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:53" (1/1) ... [2022-12-14 07:55:53,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:53" (1/1) ... [2022-12-14 07:55:53,847 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:53" (1/1) ... [2022-12-14 07:55:53,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:53" (1/1) ... [2022-12-14 07:55:53,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:55:53,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:55:53,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:55:53,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:55:53,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:53" (1/1) ... [2022-12-14 07:55:53,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:55:53,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:55:53,910 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:55:53,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:55:53,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:55:53,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:55:54,411 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:55:54,412 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:55:58,581 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:55:58,588 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:55:58,588 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 07:55:58,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:55:58 BoogieIcfgContainer [2022-12-14 07:55:58,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:55:58,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:55:58,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:55:58,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:55:58,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:55:52" (1/3) ... [2022-12-14 07:55:58,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68448f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:55:58, skipping insertion in model container [2022-12-14 07:55:58,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:53" (2/3) ... [2022-12-14 07:55:58,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68448f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:55:58, skipping insertion in model container [2022-12-14 07:55:58,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:55:58" (3/3) ... [2022-12-14 07:55:58,599 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal185.c [2022-12-14 07:55:58,617 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:55:58,617 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 07:55:58,664 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:55:58,670 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;@6f5c13ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:55:58,671 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 07:55:58,674 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) [2022-12-14 07:55:58,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 07:55:58,680 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:55:58,681 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 07:55:58,681 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:55:58,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:55:58,685 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-14 07:55:58,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:55:58,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [202996122] [2022-12-14 07:55:58,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:55:58,695 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 [2022-12-14 07:55:58,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:55:58,696 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:55:58,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:55:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:55:59,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-14 07:55:59,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:55:59,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:55:59,254 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:55:59,255 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:55:59,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [202996122] [2022-12-14 07:55:59,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [202996122] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:55:59,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:55:59,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:55:59,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058070932] [2022-12-14 07:55:59,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:55:59,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:55:59,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:55:59,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:55:59,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:55:59,282 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) [2022-12-14 07:55:59,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:55:59,826 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-12-14 07:55:59,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:55:59,827 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 [2022-12-14 07:55:59,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:55:59,832 INFO L225 Difference]: With dead ends: 20 [2022-12-14 07:55:59,832 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 07:55:59,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:55:59,836 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 07:55:59,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 07:55:59,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 07:55:59,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-12-14 07:55:59,856 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) [2022-12-14 07:55:59,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-14 07:55:59,857 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-14 07:55:59,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:55:59,857 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-14 07:55:59,857 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) [2022-12-14 07:55:59,857 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-14 07:55:59,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 07:55:59,857 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:55:59,858 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-14 07:55:59,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:56:00,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:56:00,060 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:56:00,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:56:00,062 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-12-14 07:56:00,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:56:00,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352320803] [2022-12-14 07:56:00,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:56:00,078 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 [2022-12-14 07:56:00,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:56:00,082 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:56:00,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:56:01,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:56:01,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 3194 conjuncts, 54 conjunts are in the unsatisfiable core [2022-12-14 07:56:01,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:56:01,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:56:01,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:56:02,167 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:56:02,168 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:56:02,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352320803] [2022-12-14 07:56:02,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [352320803] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:56:02,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2108362616] [2022-12-14 07:56:02,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:56:02,169 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 07:56:02,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 07:56:02,170 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 07:56:02,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-12-14 07:56:05,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:56:05,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 3194 conjuncts, 57 conjunts are in the unsatisfiable core [2022-12-14 07:56:05,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:56:05,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:56:05,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:56:05,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:56:05,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2108362616] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:56:05,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428144232] [2022-12-14 07:56:05,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:56:05,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:56:05,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:56:05,619 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:56:05,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 07:56:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:56:06,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 3194 conjuncts, 63 conjunts are in the unsatisfiable core [2022-12-14 07:56:06,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:56:06,814 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:56:06,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:56:07,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:56:07,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428144232] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:56:07,186 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 07:56:07,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 11 [2022-12-14 07:56:07,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312421698] [2022-12-14 07:56:07,187 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 07:56:07,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 07:56:07,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:56:07,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 07:56:07,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-12-14 07:56:07,189 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:56:08,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:56:08,596 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-12-14 07:56:08,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 07:56:08,596 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 07:56:08,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:56:08,596 INFO L225 Difference]: With dead ends: 16 [2022-12-14 07:56:08,596 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 07:56:08,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-12-14 07:56:08,597 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 15 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 07:56:08,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 23 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 07:56:08,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 07:56:08,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-12-14 07:56:08,600 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) [2022-12-14 07:56:08,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-12-14 07:56:08,600 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-12-14 07:56:08,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:56:08,600 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-12-14 07:56:08,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:56:08,600 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-12-14 07:56:08,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 07:56:08,601 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:56:08,601 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-14 07:56:08,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 07:56:08,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-12-14 07:56:09,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 07:56:09,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:56:09,204 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:56:09,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:56:09,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-12-14 07:56:09,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:56:09,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18807318] [2022-12-14 07:56:09,209 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 07:56:09,209 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 [2022-12-14 07:56:09,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:56:09,211 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:56:09,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:56:11,028 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 07:56:11,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 07:56:11,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 6126 conjuncts, 150 conjunts are in the unsatisfiable core [2022-12-14 07:56:11,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:56:12,027 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:56:12,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:56:46,622 WARN L233 SmtUtils]: Spent 21.72s on a formula simplification. DAG size of input: 454 DAG size of output: 140 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:56:48,535 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:56:48,536 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:56:48,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [18807318] [2022-12-14 07:56:48,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [18807318] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:56:48,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1508033329] [2022-12-14 07:56:48,536 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 07:56:48,536 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 07:56:48,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 07:56:48,538 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 07:56:48,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-12-14 07:56:54,061 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 07:56:54,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 07:56:54,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 6126 conjuncts, 149 conjunts are in the unsatisfiable core [2022-12-14 07:56:54,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:56:55,861 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:56:55,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:57:34,187 WARN L233 SmtUtils]: Spent 26.41s on a formula simplification. DAG size of input: 271 DAG size of output: 127 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:57:35,983 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:57:35,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1508033329] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:57:35,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618450313] [2022-12-14 07:57:35,984 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 07:57:35,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:57:35,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:57:35,985 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:57:35,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 07:57:37,471 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 07:57:37,471 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 07:57:37,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 6126 conjuncts, 157 conjunts are in the unsatisfiable core [2022-12-14 07:57:37,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:57:38,949 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:57:38,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:58:20,478 WARN L233 SmtUtils]: Spent 16.89s on a formula simplification. DAG size of input: 362 DAG size of output: 134 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:58:21,782 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:58:21,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618450313] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:58:21,783 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 07:58:21,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 20 [2022-12-14 07:58:21,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389367200] [2022-12-14 07:58:21,783 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 07:58:21,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-14 07:58:21,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:58:21,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-14 07:58:21,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=308, Unknown=1, NotChecked=0, Total=380 [2022-12-14 07:58:21,785 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 20 states, 20 states have (on average 1.8) internal successors, (36), 20 states have internal predecessors, (36), 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) [2022-12-14 07:58:25,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:58:25,927 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-12-14 07:58:25,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 07:58:25,928 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.8) internal successors, (36), 20 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-14 07:58:25,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:58:25,929 INFO L225 Difference]: With dead ends: 19 [2022-12-14 07:58:25,929 INFO L226 Difference]: Without dead ends: 17 [2022-12-14 07:58:25,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 38 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 79.6s TimeCoverageRelationStatistics Valid=117, Invalid=482, Unknown=1, NotChecked=0, Total=600 [2022-12-14 07:58:25,930 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 19 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 07:58:25,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 29 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 07:58:25,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-14 07:58:25,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-12-14 07:58:25,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:58:25,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-12-14 07:58:25,934 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-12-14 07:58:25,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:58:25,934 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-12-14 07:58:25,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.8) internal successors, (36), 20 states have internal predecessors, (36), 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) [2022-12-14 07:58:25,934 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-12-14 07:58:25,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 07:58:25,934 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:58:25,935 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-12-14 07:58:25,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 07:58:26,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-12-14 07:58:26,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 07:58:26,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:58:26,538 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:58:26,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:58:26,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-12-14 07:58:26,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:58:26,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [648762700] [2022-12-14 07:58:26,548 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 07:58:26,548 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 [2022-12-14 07:58:26,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:58:26,549 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:58:26,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea6812a-fd55-4a27-94b5-9f4e53fc5b26/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-12-14 07:58:30,435 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-14 07:58:30,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 07:58:30,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 9058 conjuncts, 1055 conjunts are in the unsatisfiable core [2022-12-14 07:58:30,739 INFO L286 TraceCheckSpWp]: Computing forward predicates...