./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/Haystacks-17.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac1f3fe-6f8b-44a7-a9c3-cfb8d3c87a29/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac1f3fe-6f8b-44a7-a9c3-cfb8d3c87a29/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac1f3fe-6f8b-44a7-a9c3-cfb8d3c87a29/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac1f3fe-6f8b-44a7-a9c3-cfb8d3c87a29/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/Haystacks-17.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac1f3fe-6f8b-44a7-a9c3-cfb8d3c87a29/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac1f3fe-6f8b-44a7-a9c3-cfb8d3c87a29/bin/uautomizer-AkOaLMaTGY --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9b64cc6095d5436dfbf5be50f666bc80b5fa4a542b4082c7beb316107bdb1f5d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:23:34,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:23:34,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:23:34,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:23:34,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:23:34,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:23:34,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:23:34,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:23:34,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:23:34,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:23:34,334 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:23:34,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:23:34,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:23:34,339 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:23:34,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:23:34,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:23:34,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:23:34,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:23:34,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:23:34,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:23:34,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:23:34,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:23:34,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:23:34,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:23:34,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:23:34,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:23:34,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:23:34,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:23:34,376 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:23:34,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:23:34,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:23:34,380 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:23:34,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:23:34,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:23:34,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:23:34,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:23:34,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:23:34,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:23:34,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:23:34,387 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:23:34,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:23:34,389 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac1f3fe-6f8b-44a7-a9c3-cfb8d3c87a29/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-07 08:23:34,432 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:23:34,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:23:34,433 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:23:34,433 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:23:34,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:23:34,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:23:34,434 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:23:34,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:23:34,435 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 08:23:34,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:23:34,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 08:23:34,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:23:34,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 08:23:34,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 08:23:34,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 08:23:34,438 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 08:23:34,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:23:34,439 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:23:34,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 08:23:34,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:23:34,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:23:34,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 08:23:34,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:23:34,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:23:34,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 08:23:34,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 08:23:34,441 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:23:34,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 08:23:34,442 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 08:23:34,443 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 08:23:34,444 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 08:23:34,444 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:23:34,444 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_1ac1f3fe-6f8b-44a7-a9c3-cfb8d3c87a29/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac1f3fe-6f8b-44a7-a9c3-cfb8d3c87a29/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b64cc6095d5436dfbf5be50f666bc80b5fa4a542b4082c7beb316107bdb1f5d [2021-11-07 08:23:34,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:23:34,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:23:34,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:23:34,762 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:23:34,763 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:23:34,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac1f3fe-6f8b-44a7-a9c3-cfb8d3c87a29/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/xcsp/Haystacks-17.c [2021-11-07 08:23:34,833 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac1f3fe-6f8b-44a7-a9c3-cfb8d3c87a29/bin/uautomizer-AkOaLMaTGY/data/e7cb6f39e/8acb88c4758c402d901aa000db8f61c1/FLAGc7bc24f90 [2021-11-07 08:23:35,576 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:23:35,577 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac1f3fe-6f8b-44a7-a9c3-cfb8d3c87a29/sv-benchmarks/c/xcsp/Haystacks-17.c [2021-11-07 08:23:35,608 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac1f3fe-6f8b-44a7-a9c3-cfb8d3c87a29/bin/uautomizer-AkOaLMaTGY/data/e7cb6f39e/8acb88c4758c402d901aa000db8f61c1/FLAGc7bc24f90 [2021-11-07 08:23:35,680 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac1f3fe-6f8b-44a7-a9c3-cfb8d3c87a29/bin/uautomizer-AkOaLMaTGY/data/e7cb6f39e/8acb88c4758c402d901aa000db8f61c1 [2021-11-07 08:23:35,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:23:35,685 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:23:35,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:23:35,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:23:35,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:23:35,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:23:35" (1/1) ... [2021-11-07 08:23:35,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d57e8a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:23:35, skipping insertion in model container [2021-11-07 08:23:35,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:23:35" (1/1) ... [2021-11-07 08:23:35,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:23:35,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:23:36,551 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_1ac1f3fe-6f8b-44a7-a9c3-cfb8d3c87a29/sv-benchmarks/c/xcsp/Haystacks-17.c[124976,124989] [2021-11-07 08:23:36,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:23:36,605 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:23:36,890 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_1ac1f3fe-6f8b-44a7-a9c3-cfb8d3c87a29/sv-benchmarks/c/xcsp/Haystacks-17.c[124976,124989] [2021-11-07 08:23:36,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:23:36,914 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:23:36,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:23:36 WrapperNode [2021-11-07 08:23:36,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:23:36,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:23:36,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:23:36,917 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:23:36,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:23:36" (1/1) ... [2021-11-07 08:23:36,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:23:36" (1/1) ... [2021-11-07 08:23:38,217 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:23:38,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:23:38,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:23:38,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:23:38,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:23:36" (1/1) ... [2021-11-07 08:23:38,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:23:36" (1/1) ... [2021-11-07 08:23:38,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:23:36" (1/1) ... [2021-11-07 08:23:38,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:23:36" (1/1) ... [2021-11-07 08:23:38,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:23:36" (1/1) ... [2021-11-07 08:23:38,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:23:36" (1/1) ... [2021-11-07 08:23:38,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:23:36" (1/1) ... [2021-11-07 08:23:38,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:23:38,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:23:38,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:23:38,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:23:38,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:23:36" (1/1) ... [2021-11-07 08:23:38,780 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:23:38,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac1f3fe-6f8b-44a7-a9c3-cfb8d3c87a29/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:23:38,813 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac1f3fe-6f8b-44a7-a9c3-cfb8d3c87a29/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 08:23:38,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac1f3fe-6f8b-44a7-a9c3-cfb8d3c87a29/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 08:23:38,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:23:38,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:23:38,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:23:38,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:23:45,593 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:23:45,594 INFO L299 CfgBuilder]: Removed 6328 assume(true) statements. [2021-11-07 08:23:45,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:23:45 BoogieIcfgContainer [2021-11-07 08:23:45,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:23:45,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 08:23:45,611 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 08:23:45,614 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 08:23:45,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:23:35" (1/3) ... [2021-11-07 08:23:45,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a636997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:23:45, skipping insertion in model container [2021-11-07 08:23:45,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:23:36" (2/3) ... [2021-11-07 08:23:45,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a636997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:23:45, skipping insertion in model container [2021-11-07 08:23:45,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:23:45" (3/3) ... [2021-11-07 08:23:45,618 INFO L111 eAbstractionObserver]: Analyzing ICFG Haystacks-17.c [2021-11-07 08:23:45,624 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 08:23:45,624 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 08:23:45,703 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 08:23:45,711 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=PETRI_NET, 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 [2021-11-07 08:23:45,711 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 08:23:45,829 INFO L276 IsEmpty]: Start isEmpty. Operand has 6330 states, 6328 states have (on average 1.499841972187105) internal successors, (9491), 6329 states have internal predecessors, (9491), 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) [2021-11-07 08:23:46,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6327 [2021-11-07 08:23:46,458 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:23:46,463 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2021-11-07 08:23:46,465 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:23:46,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:23:46,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1378455819, now seen corresponding path program 1 times [2021-11-07 08:23:46,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:23:46,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96647457] [2021-11-07 08:23:46,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:23:46,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:23:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:23:56,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:23:56,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:23:56,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96647457] [2021-11-07 08:23:56,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96647457] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:23:56,148 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:23:56,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:23:56,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776972071] [2021-11-07 08:23:56,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 08:23:56,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:23:56,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 08:23:56,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 08:23:56,209 INFO L87 Difference]: Start difference. First operand has 6330 states, 6328 states have (on average 1.499841972187105) internal successors, (9491), 6329 states have internal predecessors, (9491), 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 2 states, 2 states have (on average 3163.0) internal successors, (6326), 2 states have internal predecessors, (6326), 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) [2021-11-07 08:23:56,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:23:56,431 INFO L93 Difference]: Finished difference Result 12654 states and 18976 transitions. [2021-11-07 08:23:56,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 08:23:56,437 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3163.0) internal successors, (6326), 2 states have internal predecessors, (6326), 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 6326 [2021-11-07 08:23:56,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:23:56,492 INFO L225 Difference]: With dead ends: 12654 [2021-11-07 08:23:56,492 INFO L226 Difference]: Without dead ends: 6327 [2021-11-07 08:23:56,511 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 08:23:56,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6327 states. [2021-11-07 08:23:56,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6327 to 6327. [2021-11-07 08:23:56,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6327 states, 6326 states have (on average 1.0) internal successors, (6326), 6326 states have internal predecessors, (6326), 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) [2021-11-07 08:23:56,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6327 states to 6327 states and 6326 transitions. [2021-11-07 08:23:56,747 INFO L78 Accepts]: Start accepts. Automaton has 6327 states and 6326 transitions. Word has length 6326 [2021-11-07 08:23:56,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:23:56,751 INFO L470 AbstractCegarLoop]: Abstraction has 6327 states and 6326 transitions. [2021-11-07 08:23:56,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3163.0) internal successors, (6326), 2 states have internal predecessors, (6326), 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) [2021-11-07 08:23:56,771 INFO L276 IsEmpty]: Start isEmpty. Operand 6327 states and 6326 transitions. [2021-11-07 08:23:57,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6327 [2021-11-07 08:23:57,491 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:23:57,495 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2021-11-07 08:23:57,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 08:23:57,497 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:23:57,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:23:57,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1922686359, now seen corresponding path program 1 times [2021-11-07 08:23:57,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:23:57,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114360702] [2021-11-07 08:23:57,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:23:57,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:23:58,120 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:23:58,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1199527592] [2021-11-07 08:23:58,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:23:58,123 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:23:58,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac1f3fe-6f8b-44a7-a9c3-cfb8d3c87a29/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:23:58,135 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac1f3fe-6f8b-44a7-a9c3-cfb8d3c87a29/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:23:58,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac1f3fe-6f8b-44a7-a9c3-cfb8d3c87a29/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process