./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/Haystacks-19.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df9559ea-36d9-4509-ae4a-c977ae907d5d/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df9559ea-36d9-4509-ae4a-c977ae907d5d/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df9559ea-36d9-4509-ae4a-c977ae907d5d/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df9559ea-36d9-4509-ae4a-c977ae907d5d/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/Haystacks-19.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df9559ea-36d9-4509-ae4a-c977ae907d5d/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df9559ea-36d9-4509-ae4a-c977ae907d5d/bin/utaipan-vmNK8stdcF --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 32bit --witnessprinter.graph.data.programhash 1853276af926d58c6b3ed0ec4b2f9e2337c8b095afaf2fd2143288796902cc0f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:27:11,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:27:11,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:27:11,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:27:11,507 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:27:11,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:27:11,513 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:27:11,517 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:27:11,520 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:27:11,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:27:11,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:27:11,532 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:27:11,532 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:27:11,535 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:27:11,538 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:27:11,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:27:11,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:27:11,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:27:11,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:27:11,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:27:11,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:27:11,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:27:11,568 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:27:11,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:27:11,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:27:11,577 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:27:11,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:27:11,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:27:11,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:27:11,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:27:11,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:27:11,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:27:11,586 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:27:11,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:27:11,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:27:11,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:27:11,590 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:27:11,591 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:27:11,591 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:27:11,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:27:11,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:27:11,594 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df9559ea-36d9-4509-ae4a-c977ae907d5d/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 23:27:11,651 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:27:11,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:27:11,652 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:27:11,652 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:27:11,652 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:27:11,653 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:27:11,653 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:27:11,656 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:27:11,663 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:27:11,663 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:27:11,665 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:27:11,665 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:27:11,665 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:27:11,665 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:27:11,666 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:27:11,666 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:27:11,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:27:11,667 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:27:11,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:27:11,667 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:27:11,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:27:11,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:27:11,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:27:11,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:27:11,669 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:27:11,669 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:27:11,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:27:11,670 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:27:11,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:27:11,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:27:11,673 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:27:11,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:27:11,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:27:11,674 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:27:11,674 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:27:11,674 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:27:11,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:27:11,675 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:27:11,675 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:27:11,675 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:27:11,675 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_df9559ea-36d9-4509-ae4a-c977ae907d5d/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df9559ea-36d9-4509-ae4a-c977ae907d5d/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1853276af926d58c6b3ed0ec4b2f9e2337c8b095afaf2fd2143288796902cc0f [2021-11-12 23:27:12,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:27:12,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:27:12,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:27:12,087 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:27:12,089 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:27:12,091 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df9559ea-36d9-4509-ae4a-c977ae907d5d/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/xcsp/Haystacks-19.c [2021-11-12 23:27:12,186 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df9559ea-36d9-4509-ae4a-c977ae907d5d/bin/utaipan-vmNK8stdcF/data/a628849e5/f7a06b81d4de49d49e9f29d785f0152c/FLAG0619c6af3 [2021-11-12 23:27:13,053 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:27:13,054 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df9559ea-36d9-4509-ae4a-c977ae907d5d/sv-benchmarks/c/xcsp/Haystacks-19.c [2021-11-12 23:27:13,082 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df9559ea-36d9-4509-ae4a-c977ae907d5d/bin/utaipan-vmNK8stdcF/data/a628849e5/f7a06b81d4de49d49e9f29d785f0152c/FLAG0619c6af3 [2021-11-12 23:27:13,605 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df9559ea-36d9-4509-ae4a-c977ae907d5d/bin/utaipan-vmNK8stdcF/data/a628849e5/f7a06b81d4de49d49e9f29d785f0152c [2021-11-12 23:27:13,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:27:13,611 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:27:13,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:27:13,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:27:13,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:27:13,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:27:13" (1/1) ... [2021-11-12 23:27:13,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34050bba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:13, skipping insertion in model container [2021-11-12 23:27:13,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:27:13" (1/1) ... [2021-11-12 23:27:13,629 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:27:13,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:27:14,750 WARN L228 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_df9559ea-36d9-4509-ae4a-c977ae907d5d/sv-benchmarks/c/xcsp/Haystacks-19.c[171554,171567] [2021-11-12 23:27:14,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:27:14,792 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:27:15,067 WARN L228 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_df9559ea-36d9-4509-ae4a-c977ae907d5d/sv-benchmarks/c/xcsp/Haystacks-19.c[171554,171567] [2021-11-12 23:27:15,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:27:15,090 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:27:15,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:15 WrapperNode [2021-11-12 23:27:15,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:27:15,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:27:15,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:27:15,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:27:15,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:15" (1/1) ... [2021-11-12 23:27:15,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:15" (1/1) ... [2021-11-12 23:27:15,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:27:15,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:27:15,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:27:15,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:27:15,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:15" (1/1) ... [2021-11-12 23:27:15,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:15" (1/1) ... [2021-11-12 23:27:15,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:15" (1/1) ... [2021-11-12 23:27:15,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:15" (1/1) ... [2021-11-12 23:27:15,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:15" (1/1) ... [2021-11-12 23:27:15,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:15" (1/1) ... [2021-11-12 23:27:15,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:15" (1/1) ... [2021-11-12 23:27:15,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:27:15,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:27:15,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:27:15,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:27:15,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:15" (1/1) ... [2021-11-12 23:27:15,781 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:27:15,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df9559ea-36d9-4509-ae4a-c977ae907d5d/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:27:15,817 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df9559ea-36d9-4509-ae4a-c977ae907d5d/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:27:15,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df9559ea-36d9-4509-ae4a-c977ae907d5d/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:27:15,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:27:15,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:27:15,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 23:27:15,875 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2021-11-12 23:27:15,875 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2021-11-12 23:27:15,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:27:20,022 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:27:20,022 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 23:27:20,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:27:20 BoogieIcfgContainer [2021-11-12 23:27:20,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:27:20,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:27:20,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:27:20,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:27:20,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:27:13" (1/3) ... [2021-11-12 23:27:20,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac0ab35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:27:20, skipping insertion in model container [2021-11-12 23:27:20,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:15" (2/3) ... [2021-11-12 23:27:20,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac0ab35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:27:20, skipping insertion in model container [2021-11-12 23:27:20,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:27:20" (3/3) ... [2021-11-12 23:27:20,105 INFO L111 eAbstractionObserver]: Analyzing ICFG Haystacks-19.c [2021-11-12 23:27:20,110 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:27:20,110 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:27:20,174 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:27:20,181 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:27:20,181 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:27:20,331 INFO L276 IsEmpty]: Start isEmpty. Operand has 4680 states, 364 states have (on average 1.0027472527472527) internal successors, (365), 365 states have internal predecessors, (365), 4313 states have call successors, (4313), 1 states have call predecessors, (4313), 1 states have return successors, (4313), 4313 states have call predecessors, (4313), 4313 states have call successors, (4313) [2021-11-12 23:27:21,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13303 [2021-11-12 23:27:21,550 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:27:21,558 INFO L514 BasicCegarLoop]: trace histogram [4313, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:27:21,560 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:27:21,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:27:21,574 INFO L85 PathProgramCache]: Analyzing trace with hash 218352750, now seen corresponding path program 1 times [2021-11-12 23:27:21,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:27:21,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417586843] [2021-11-12 23:27:21,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:27:21,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:27:22,597 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 23:27:22,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [724429022] [2021-11-12 23:27:22,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:27:22,602 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:27:22,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df9559ea-36d9-4509-ae4a-c977ae907d5d/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:27:22,604 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df9559ea-36d9-4509-ae4a-c977ae907d5d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:27:22,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df9559ea-36d9-4509-ae4a-c977ae907d5d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process