./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/Haystacks-06.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_74e617da-1f93-41e4-b823-4f0c118a6e29/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e617da-1f93-41e4-b823-4f0c118a6e29/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_74e617da-1f93-41e4-b823-4f0c118a6e29/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e617da-1f93-41e4-b823-4f0c118a6e29/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/Haystacks-06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e617da-1f93-41e4-b823-4f0c118a6e29/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e617da-1f93-41e4-b823-4f0c118a6e29/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 32bit --witnessprinter.graph.data.programhash 36597d7b6e4e15d0ddc667c8d3f7adfa630047456c5216e84008cdd50b82effa --- 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 12:59:54,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:59:54,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:59:54,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:59:54,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:59:54,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:59:54,300 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:59:54,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:59:54,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:59:54,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:59:54,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:59:54,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:59:54,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:59:54,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:59:54,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:59:54,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:59:54,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:59:54,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:59:54,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:59:54,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:59:54,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:59:54,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:59:54,314 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:59:54,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:59:54,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:59:54,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:59:54,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:59:54,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:59:54,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:59:54,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:59:54,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:59:54,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:59:54,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:59:54,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:59:54,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:59:54,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:59:54,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:59:54,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:59:54,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:59:54,323 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:59:54,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:59:54,325 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e617da-1f93-41e4-b823-4f0c118a6e29/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 12:59:54,340 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:59:54,340 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:59:54,341 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:59:54,341 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:59:54,341 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:59:54,341 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:59:54,341 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:59:54,342 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:59:54,342 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:59:54,342 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:59:54,342 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:59:54,342 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:59:54,342 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:59:54,343 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:59:54,343 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:59:54,343 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:59:54,343 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:59:54,343 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:59:54,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:59:54,344 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 12:59:54,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:59:54,344 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 12:59:54,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:59:54,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:59:54,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:59:54,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:59:54,345 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 12:59:54,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:59:54,346 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:59:54,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:59:54,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:59:54,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:59:54,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:59:54,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:59:54,347 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:59:54,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:59:54,347 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:59:54,347 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:59:54,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:59:54,347 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:59:54,348 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:59:54,348 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_74e617da-1f93-41e4-b823-4f0c118a6e29/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e617da-1f93-41e4-b823-4f0c118a6e29/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36597d7b6e4e15d0ddc667c8d3f7adfa630047456c5216e84008cdd50b82effa [2022-12-14 12:59:54,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:59:54,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:59:54,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:59:54,546 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:59:54,547 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:59:54,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e617da-1f93-41e4-b823-4f0c118a6e29/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/xcsp/Haystacks-06.c [2022-12-14 12:59:57,142 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:59:57,274 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:59:57,274 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e617da-1f93-41e4-b823-4f0c118a6e29/sv-benchmarks/c/xcsp/Haystacks-06.c [2022-12-14 12:59:57,280 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e617da-1f93-41e4-b823-4f0c118a6e29/bin/utaipan-gh47qXpMRh/data/437263359/87f009c18b9949a48c8f247e5380102a/FLAG9c796d526 [2022-12-14 12:59:57,290 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e617da-1f93-41e4-b823-4f0c118a6e29/bin/utaipan-gh47qXpMRh/data/437263359/87f009c18b9949a48c8f247e5380102a [2022-12-14 12:59:57,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:59:57,293 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:59:57,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:59:57,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:59:57,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:59:57,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:59:57" (1/1) ... [2022-12-14 12:59:57,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c5d3577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:59:57, skipping insertion in model container [2022-12-14 12:59:57,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:59:57" (1/1) ... [2022-12-14 12:59:57,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:59:57,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:59:57,457 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e617da-1f93-41e4-b823-4f0c118a6e29/sv-benchmarks/c/xcsp/Haystacks-06.c[8053,8066] [2022-12-14 12:59:57,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:59:57,469 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:59:57,502 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_74e617da-1f93-41e4-b823-4f0c118a6e29/sv-benchmarks/c/xcsp/Haystacks-06.c[8053,8066] [2022-12-14 12:59:57,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:59:57,513 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:59:57,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:59:57 WrapperNode [2022-12-14 12:59:57,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:59:57,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:59:57,515 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:59:57,515 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:59:57,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:59:57" (1/1) ... [2022-12-14 12:59:57,528 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:59:57" (1/1) ... [2022-12-14 12:59:57,550 INFO L138 Inliner]: procedures = 13, calls = 199, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 353 [2022-12-14 12:59:57,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:59:57,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:59:57,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:59:57,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:59:57,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:59:57" (1/1) ... [2022-12-14 12:59:57,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:59:57" (1/1) ... [2022-12-14 12:59:57,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:59:57" (1/1) ... [2022-12-14 12:59:57,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:59:57" (1/1) ... [2022-12-14 12:59:57,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:59:57" (1/1) ... [2022-12-14 12:59:57,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:59:57" (1/1) ... [2022-12-14 12:59:57,569 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:59:57" (1/1) ... [2022-12-14 12:59:57,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:59:57" (1/1) ... [2022-12-14 12:59:57,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:59:57,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:59:57,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:59:57,573 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:59:57,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:59:57" (1/1) ... [2022-12-14 12:59:57,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:59:57,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e617da-1f93-41e4-b823-4f0c118a6e29/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:59:57,598 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e617da-1f93-41e4-b823-4f0c118a6e29/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:59:57,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e617da-1f93-41e4-b823-4f0c118a6e29/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:59:57,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:59:57,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:59:57,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:59:57,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:59:57,634 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-12-14 12:59:57,634 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-12-14 12:59:57,701 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:59:57,702 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:59:58,068 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:59:58,091 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:59:58,091 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 12:59:58,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:59:58 BoogieIcfgContainer [2022-12-14 12:59:58,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:59:58,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:59:58,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:59:58,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:59:58,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:59:57" (1/3) ... [2022-12-14 12:59:58,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679eb919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:59:58, skipping insertion in model container [2022-12-14 12:59:58,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:59:57" (2/3) ... [2022-12-14 12:59:58,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679eb919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:59:58, skipping insertion in model container [2022-12-14 12:59:58,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:59:58" (3/3) ... [2022-12-14 12:59:58,103 INFO L112 eAbstractionObserver]: Analyzing ICFG Haystacks-06.c [2022-12-14 12:59:58,122 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:59:58,122 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 12:59:58,169 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:59:58,175 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;@30ac4da7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:59:58,175 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 12:59:58,179 INFO L276 IsEmpty]: Start isEmpty. Operand has 234 states, 39 states have (on average 1.0256410256410255) internal successors, (40), 40 states have internal predecessors, (40), 192 states have call successors, (192), 1 states have call predecessors, (192), 1 states have return successors, (192), 192 states have call predecessors, (192), 192 states have call successors, (192) [2022-12-14 12:59:58,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2022-12-14 12:59:58,212 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:59:58,213 INFO L195 NwaCegarLoop]: trace histogram [192, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:59:58,214 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:59:58,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:59:58,219 INFO L85 PathProgramCache]: Analyzing trace with hash -439946067, now seen corresponding path program 1 times [2022-12-14 12:59:58,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:59:58,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544314472] [2022-12-14 12:59:58,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:59:58,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:59:58,520 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 12:59:58,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1753305846] [2022-12-14 12:59:58,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:59:58,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:59:58,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e617da-1f93-41e4-b823-4f0c118a6e29/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:59:58,523 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e617da-1f93-41e4-b823-4f0c118a6e29/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:59:58,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e617da-1f93-41e4-b823-4f0c118a6e29/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 13:01:27,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:01:27,440 WARN L261 TraceCheckSpWp]: Trace formula consists of 1708 conjuncts, 854 conjunts are in the unsatisfiable core [2022-12-14 13:01:27,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:05:02,578 WARN L233 SmtUtils]: Spent 5.48s on a formula simplification that was a NOOP. DAG size: 317 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:05:12,705 WARN L233 SmtUtils]: Spent 5.23s on a formula simplification that was a NOOP. DAG size: 321 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:05:23,004 WARN L233 SmtUtils]: Spent 5.27s on a formula simplification that was a NOOP. DAG size: 326 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:05:34,098 WARN L233 SmtUtils]: Spent 5.38s on a formula simplification that was a NOOP. DAG size: 331 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:05:51,942 WARN L233 SmtUtils]: Spent 8.33s on a formula simplification that was a NOOP. DAG size: 337 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:06:04,906 WARN L233 SmtUtils]: Spent 7.48s on a formula simplification that was a NOOP. DAG size: 341 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:06:19,643 WARN L233 SmtUtils]: Spent 9.30s on a formula simplification that was a NOOP. DAG size: 345 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:06:36,467 WARN L233 SmtUtils]: Spent 7.51s on a formula simplification that was a NOOP. DAG size: 350 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:06:53,828 WARN L233 SmtUtils]: Spent 7.87s on a formula simplification that was a NOOP. DAG size: 355 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:07:10,569 WARN L233 SmtUtils]: Spent 9.73s on a formula simplification that was a NOOP. DAG size: 359 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:07:27,098 WARN L233 SmtUtils]: Spent 10.33s on a formula simplification that was a NOOP. DAG size: 361 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:07:42,417 WARN L233 SmtUtils]: Spent 10.32s on a formula simplification that was a NOOP. DAG size: 363 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:08:06,994 WARN L233 SmtUtils]: Spent 13.79s on a formula simplification that was a NOOP. DAG size: 367 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:08:23,922 WARN L233 SmtUtils]: Spent 10.52s on a formula simplification that was a NOOP. DAG size: 369 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:08:50,856 WARN L233 SmtUtils]: Spent 13.10s on a formula simplification that was a NOOP. DAG size: 371 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:09:20,742 WARN L233 SmtUtils]: Spent 13.08s on a formula simplification that was a NOOP. DAG size: 373 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:09:46,499 WARN L233 SmtUtils]: Spent 13.38s on a formula simplification that was a NOOP. DAG size: 375 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:10:28,199 WARN L233 SmtUtils]: Spent 21.73s on a formula simplification that was a NOOP. DAG size: 377 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:11:24,497 WARN L233 SmtUtils]: Spent 32.05s on a formula simplification that was a NOOP. DAG size: 379 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:12:07,640 WARN L233 SmtUtils]: Spent 17.59s on a formula simplification that was a NOOP. DAG size: 381 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:12:42,250 WARN L233 SmtUtils]: Spent 19.72s on a formula simplification that was a NOOP. DAG size: 383 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:13:14,686 WARN L233 SmtUtils]: Spent 16.80s on a formula simplification that was a NOOP. DAG size: 385 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:13:47,900 WARN L233 SmtUtils]: Spent 25.33s on a formula simplification that was a NOOP. DAG size: 387 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:14:15,108 WARN L233 SmtUtils]: Spent 19.11s on a formula simplification that was a NOOP. DAG size: 389 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:14:48,180 WARN L233 SmtUtils]: Spent 25.85s on a formula simplification that was a NOOP. DAG size: 391 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:15:15,949 WARN L233 SmtUtils]: Spent 22.01s on a formula simplification that was a NOOP. DAG size: 393 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)