./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0883.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0883.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW --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 86e7efa59a6bd11d9a5dfdc7b4f5743dfbd252f8913e1946c8d686b198d4af2f --- 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-4e7fbc6 [2022-11-23 14:29:46,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:29:46,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:29:46,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:29:46,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:29:46,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:29:46,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:29:46,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:29:46,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:29:46,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:29:46,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:29:46,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:29:46,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:29:46,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:29:46,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:29:46,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:29:46,092 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:29:46,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:29:46,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:29:46,097 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:29:46,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:29:46,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:29:46,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:29:46,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:29:46,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:29:46,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:29:46,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:29:46,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:29:46,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:29:46,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:29:46,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:29:46,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:29:46,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:29:46,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:29:46,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:29:46,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:29:46,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:29:46,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:29:46,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:29:46,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:29:46,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:29:46,117 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:29:46,141 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:29:46,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:29:46,142 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:29:46,142 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:29:46,143 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:29:46,143 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:29:46,143 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:29:46,144 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:29:46,144 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:29:46,144 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:29:46,144 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:29:46,145 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:29:46,145 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:29:46,145 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:29:46,145 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:29:46,146 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:29:46,146 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:29:46,146 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:29:46,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:29:46,147 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:29:46,148 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:29:46,148 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:29:46,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:29:46,148 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:29:46,148 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:29:46,149 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:29:46,149 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:29:46,149 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:29:46,149 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:29:46,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:29:46,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:29:46,150 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:29:46,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:29:46,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:29:46,151 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:29:46,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:29:46,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:29:46,152 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:29:46,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:29:46,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:29:46,152 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:29:46,153 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_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86e7efa59a6bd11d9a5dfdc7b4f5743dfbd252f8913e1946c8d686b198d4af2f [2022-11-23 14:29:46,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:29:46,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:29:46,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:29:46,491 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:29:46,493 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:29:46,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/float-newlib/float_req_bl_0883.c [2022-11-23 14:29:49,687 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:29:50,068 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:29:50,069 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/sv-benchmarks/c/float-newlib/float_req_bl_0883.c [2022-11-23 14:29:50,096 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/data/4ff085c92/16b60891a5c64ca2b695a7cc26eda207/FLAG53e4073ba [2022-11-23 14:29:50,113 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/data/4ff085c92/16b60891a5c64ca2b695a7cc26eda207 [2022-11-23 14:29:50,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:29:50,118 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:29:50,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:29:50,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:29:50,124 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:29:50,125 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:29:50" (1/1) ... [2022-11-23 14:29:50,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55fad5a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:50, skipping insertion in model container [2022-11-23 14:29:50,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:29:50" (1/1) ... [2022-11-23 14:29:50,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:29:50,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:29:50,387 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:795) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:2048) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$61(StandardFunctionHandler.java:428) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:242) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1463) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1669) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1646) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3313) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-23 14:29:50,395 INFO L158 Benchmark]: Toolchain (without parser) took 273.06ms. Allocated memory is still 203.4MB. Free memory was 168.6MB in the beginning and 156.8MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 14:29:50,396 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 146.8MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:29:50,396 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.33ms. Allocated memory is still 203.4MB. Free memory was 168.6MB in the beginning and 156.8MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 14:29:50,398 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 146.8MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 270.33ms. Allocated memory is still 203.4MB. Free memory was 168.6MB in the beginning and 156.8MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:795) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0883.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW --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 86e7efa59a6bd11d9a5dfdc7b4f5743dfbd252f8913e1946c8d686b198d4af2f --- 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-4e7fbc6 [2022-11-23 14:29:52,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:29:52,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:29:52,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:29:52,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:29:52,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:29:52,861 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:29:52,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:29:52,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:29:52,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:29:52,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:29:52,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:29:52,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:29:52,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:29:52,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:29:52,874 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:29:52,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:29:52,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:29:52,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:29:52,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:29:52,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:29:52,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:29:52,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:29:52,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:29:52,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:29:52,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:29:52,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:29:52,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:29:52,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:29:52,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:29:52,894 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:29:52,895 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:29:52,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:29:52,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:29:52,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:29:52,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:29:52,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:29:52,899 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:29:52,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:29:52,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:29:52,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:29:52,902 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-23 14:29:52,928 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:29:52,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:29:52,929 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:29:52,929 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:29:52,930 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:29:52,930 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:29:52,931 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:29:52,931 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:29:52,931 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:29:52,932 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:29:52,932 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:29:52,932 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:29:52,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:29:52,934 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:29:52,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:29:52,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:29:52,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:29:52,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:29:52,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:29:52,936 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 14:29:52,936 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 14:29:52,936 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 14:29:52,937 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:29:52,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:29:52,937 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:29:52,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:29:52,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:29:52,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 14:29:52,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:29:52,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:29:52,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:29:52,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:29:52,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:29:52,940 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 14:29:52,940 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 14:29:52,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:29:52,941 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:29:52,941 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 14:29:52,941 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86e7efa59a6bd11d9a5dfdc7b4f5743dfbd252f8913e1946c8d686b198d4af2f [2022-11-23 14:29:53,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:29:53,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:29:53,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:29:53,417 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:29:53,418 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:29:53,424 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/float-newlib/float_req_bl_0883.c [2022-11-23 14:29:56,587 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:29:56,857 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:29:56,857 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/sv-benchmarks/c/float-newlib/float_req_bl_0883.c [2022-11-23 14:29:56,870 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/data/f13e20421/7c5b0b1af7ef4477ad835cdcca556b23/FLAGac04a50d4 [2022-11-23 14:29:56,885 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/data/f13e20421/7c5b0b1af7ef4477ad835cdcca556b23 [2022-11-23 14:29:56,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:29:56,893 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:29:56,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:29:56,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:29:56,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:29:56,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:29:56" (1/1) ... [2022-11-23 14:29:56,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59043cbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:56, skipping insertion in model container [2022-11-23 14:29:56,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:29:56" (1/1) ... [2022-11-23 14:29:56,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:29:56,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:29:57,398 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_f227e4ac-94b0-49bb-a82c-1fa726d0095f/sv-benchmarks/c/float-newlib/float_req_bl_0883.c[14102,14115] [2022-11-23 14:29:57,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:29:57,433 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:29:57,616 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_f227e4ac-94b0-49bb-a82c-1fa726d0095f/sv-benchmarks/c/float-newlib/float_req_bl_0883.c[14102,14115] [2022-11-23 14:29:57,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:29:57,646 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:29:57,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:57 WrapperNode [2022-11-23 14:29:57,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:29:57,648 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:29:57,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:29:57,649 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:29:57,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:57" (1/1) ... [2022-11-23 14:29:57,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:57" (1/1) ... [2022-11-23 14:29:57,734 INFO L138 Inliner]: procedures = 26, calls = 192, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 742 [2022-11-23 14:29:57,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:29:57,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:29:57,744 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:29:57,744 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:29:57,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:57" (1/1) ... [2022-11-23 14:29:57,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:57" (1/1) ... [2022-11-23 14:29:57,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:57" (1/1) ... [2022-11-23 14:29:57,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:57" (1/1) ... [2022-11-23 14:29:57,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:57" (1/1) ... [2022-11-23 14:29:57,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:57" (1/1) ... [2022-11-23 14:29:57,853 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:57" (1/1) ... [2022-11-23 14:29:57,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:57" (1/1) ... [2022-11-23 14:29:57,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:29:57,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:29:57,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:29:57,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:29:57,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:57" (1/1) ... [2022-11-23 14:29:57,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:29:57,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:29:57,929 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:29:57,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:29:57,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:29:57,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 14:29:57,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:29:57,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-11-23 14:29:57,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-23 14:29:57,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-11-23 14:29:57,984 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2022-11-23 14:29:57,984 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2022-11-23 14:29:57,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2022-11-23 14:29:57,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:29:57,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:29:57,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-23 14:29:57,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:29:58,171 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:29:58,174 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:30:24,926 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:30:24,937 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:30:24,937 INFO L300 CfgBuilder]: Removed 72 assume(true) statements. [2022-11-23 14:30:24,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:30:24 BoogieIcfgContainer [2022-11-23 14:30:24,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:30:24,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:30:24,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:30:24,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:30:24,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:29:56" (1/3) ... [2022-11-23 14:30:24,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44b9adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:30:24, skipping insertion in model container [2022-11-23 14:30:24,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:57" (2/3) ... [2022-11-23 14:30:24,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44b9adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:30:24, skipping insertion in model container [2022-11-23 14:30:24,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:30:24" (3/3) ... [2022-11-23 14:30:24,952 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0883.c [2022-11-23 14:30:24,974 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:30:24,975 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:30:25,032 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:30:25,039 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;@779046a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:30:25,039 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:30:25,045 INFO L276 IsEmpty]: Start isEmpty. Operand has 187 states, 181 states have (on average 1.729281767955801) internal successors, (313), 182 states have internal predecessors, (313), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 14:30:25,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-23 14:30:25,053 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:30:25,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:30:25,054 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:30:25,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:30:25,060 INFO L85 PathProgramCache]: Analyzing trace with hash -218926045, now seen corresponding path program 1 times [2022-11-23 14:30:25,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:30:25,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1497168707] [2022-11-23 14:30:25,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:30:25,076 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:30:25,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:30:25,083 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:30:25,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 14:30:26,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:30:26,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 14:30:26,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:30:26,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:30:26,231 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:30:26,232 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:30:26,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1497168707] [2022-11-23 14:30:26,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1497168707] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:30:26,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:30:26,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:30:26,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558821860] [2022-11-23 14:30:26,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:30:26,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:30:26,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:30:26,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:30:26,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:30:26,269 INFO L87 Difference]: Start difference. First operand has 187 states, 181 states have (on average 1.729281767955801) internal successors, (313), 182 states have internal predecessors, (313), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:30:26,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:30:26,317 INFO L93 Difference]: Finished difference Result 371 states and 637 transitions. [2022-11-23 14:30:26,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:30:26,319 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-23 14:30:26,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:30:26,328 INFO L225 Difference]: With dead ends: 371 [2022-11-23 14:30:26,329 INFO L226 Difference]: Without dead ends: 183 [2022-11-23 14:30:26,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:30:26,336 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:30:26,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:30:26,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-23 14:30:26,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2022-11-23 14:30:26,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 178 states have (on average 1.3202247191011236) internal successors, (235), 178 states have internal predecessors, (235), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 14:30:26,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 241 transitions. [2022-11-23 14:30:26,386 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 241 transitions. Word has length 13 [2022-11-23 14:30:26,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:30:26,387 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 241 transitions. [2022-11-23 14:30:26,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:30:26,387 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 241 transitions. [2022-11-23 14:30:26,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 14:30:26,388 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:30:26,388 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:30:26,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:30:26,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:30:26,602 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:30:26,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:30:26,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1136669304, now seen corresponding path program 1 times [2022-11-23 14:30:26,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:30:26,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816548293] [2022-11-23 14:30:26,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:30:26,605 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:30:26,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:30:26,606 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:30:26,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 14:30:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:30:27,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-23 14:30:27,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:30:28,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:30:28,102 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:30:28,103 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:30:28,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816548293] [2022-11-23 14:30:28,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1816548293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:30:28,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:30:28,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:30:28,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538022768] [2022-11-23 14:30:28,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:30:28,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:30:28,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:30:28,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:30:28,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:30:28,111 INFO L87 Difference]: Start difference. First operand 183 states and 241 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:30:31,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:30:31,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:30:31,956 INFO L93 Difference]: Finished difference Result 203 states and 262 transitions. [2022-11-23 14:30:31,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:30:32,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2022-11-23 14:30:32,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:30:32,001 INFO L225 Difference]: With dead ends: 203 [2022-11-23 14:30:32,001 INFO L226 Difference]: Without dead ends: 191 [2022-11-23 14:30:32,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:30:32,003 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 427 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:30:32,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 505 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-11-23 14:30:32,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-11-23 14:30:32,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 183. [2022-11-23 14:30:32,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 178 states have (on average 1.303370786516854) internal successors, (232), 178 states have internal predecessors, (232), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 14:30:32,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 238 transitions. [2022-11-23 14:30:32,034 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 238 transitions. Word has length 16 [2022-11-23 14:30:32,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:30:32,034 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 238 transitions. [2022-11-23 14:30:32,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:30:32,035 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 238 transitions. [2022-11-23 14:30:32,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 14:30:32,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:30:32,035 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:30:32,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:30:32,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:30:32,254 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:30:32,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:30:32,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1680361837, now seen corresponding path program 1 times [2022-11-23 14:30:32,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:30:32,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [808873173] [2022-11-23 14:30:32,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:30:32,256 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:30:32,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:30:32,258 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:30:32,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-23 14:30:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:30:33,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-23 14:30:33,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:30:33,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:30:34,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-11-23 14:30:34,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:30:34,726 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:30:34,726 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:30:34,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [808873173] [2022-11-23 14:30:34,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [808873173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:30:34,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:30:34,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:30:34,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880871912] [2022-11-23 14:30:34,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:30:34,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:30:34,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:30:34,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:30:34,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:30:34,735 INFO L87 Difference]: Start difference. First operand 183 states and 238 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:30:37,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:30:38,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:30:38,916 INFO L93 Difference]: Finished difference Result 234 states and 308 transitions. [2022-11-23 14:30:38,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:30:38,918 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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 18 [2022-11-23 14:30:38,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:30:38,919 INFO L225 Difference]: With dead ends: 234 [2022-11-23 14:30:38,919 INFO L226 Difference]: Without dead ends: 62 [2022-11-23 14:30:38,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:30:38,927 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 283 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:30:38,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 100 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-23 14:30:38,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-23 14:30:38,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-23 14:30:38,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.2459016393442623) internal successors, (76), 61 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:30:38,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 76 transitions. [2022-11-23 14:30:38,951 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 76 transitions. Word has length 18 [2022-11-23 14:30:38,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:30:38,952 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 76 transitions. [2022-11-23 14:30:38,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:30:38,952 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 76 transitions. [2022-11-23 14:30:38,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 14:30:38,953 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:30:38,954 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:30:38,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-23 14:30:39,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:30:39,180 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:30:39,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:30:39,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1276009850, now seen corresponding path program 1 times [2022-11-23 14:30:39,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:30:39,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554084472] [2022-11-23 14:30:39,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:30:39,181 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:30:39,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:30:39,182 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:30:39,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-23 14:30:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:30:40,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-23 14:30:40,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:30:41,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:30:41,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:30:41,414 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:30:41,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554084472] [2022-11-23 14:30:41,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1554084472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:30:41,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:30:41,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:30:41,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092848998] [2022-11-23 14:30:41,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:30:41,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:30:41,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:30:41,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:30:41,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:30:41,416 INFO L87 Difference]: Start difference. First operand 62 states and 76 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:30:45,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:30:45,301 INFO L93 Difference]: Finished difference Result 70 states and 83 transitions. [2022-11-23 14:30:45,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 14:30:45,308 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 9 states have internal predecessors, (21), 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 21 [2022-11-23 14:30:45,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:30:45,309 INFO L225 Difference]: With dead ends: 70 [2022-11-23 14:30:45,309 INFO L226 Difference]: Without dead ends: 61 [2022-11-23 14:30:45,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:30:45,310 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 238 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:30:45,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 368 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-23 14:30:45,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-23 14:30:45,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-23 14:30:45,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.2166666666666666) internal successors, (73), 60 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:30:45,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 73 transitions. [2022-11-23 14:30:45,326 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 73 transitions. Word has length 21 [2022-11-23 14:30:45,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:30:45,327 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 73 transitions. [2022-11-23 14:30:45,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:30:45,329 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 73 transitions. [2022-11-23 14:30:45,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 14:30:45,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:30:45,330 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:30:45,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-23 14:30:45,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:30:45,535 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:30:45,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:30:45,536 INFO L85 PathProgramCache]: Analyzing trace with hash 438154790, now seen corresponding path program 1 times [2022-11-23 14:30:45,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:30:45,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [813618060] [2022-11-23 14:30:45,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:30:45,537 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:30:45,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:30:45,538 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:30:45,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-23 14:30:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:30:46,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-23 14:30:46,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:30:46,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:30:47,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 32 [2022-11-23 14:30:48,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:30:48,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:30:48,572 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:30:48,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [813618060] [2022-11-23 14:30:48,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [813618060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:30:48,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:30:48,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 14:30:48,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550553878] [2022-11-23 14:30:48,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:30:48,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 14:30:48,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:30:48,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 14:30:48,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:30:48,575 INFO L87 Difference]: Start difference. First operand 61 states and 73 transitions. Second operand has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:30:51,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:30:51,558 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2022-11-23 14:30:51,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 14:30:51,560 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 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 21 [2022-11-23 14:30:51,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:30:51,560 INFO L225 Difference]: With dead ends: 69 [2022-11-23 14:30:51,560 INFO L226 Difference]: Without dead ends: 59 [2022-11-23 14:30:51,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2022-11-23 14:30:51,562 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 119 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:30:51,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 382 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-23 14:30:51,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-23 14:30:51,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-23 14:30:51,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.206896551724138) internal successors, (70), 58 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:30:51,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2022-11-23 14:30:51,580 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 21 [2022-11-23 14:30:51,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:30:51,581 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2022-11-23 14:30:51,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:30:51,581 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2022-11-23 14:30:51,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-23 14:30:51,582 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:30:51,582 INFO L195 NwaCegarLoop]: 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] [2022-11-23 14:30:51,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-23 14:30:51,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:30:51,787 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:30:51,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:30:51,788 INFO L85 PathProgramCache]: Analyzing trace with hash 687114061, now seen corresponding path program 1 times [2022-11-23 14:30:51,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:30:51,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1320538869] [2022-11-23 14:30:51,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:30:51,788 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:30:51,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:30:51,790 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:30:51,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-23 14:30:52,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:30:52,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-23 14:30:52,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:30:54,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:30:54,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:30:54,718 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:30:54,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1320538869] [2022-11-23 14:30:54,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1320538869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:30:54,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:30:54,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 14:30:54,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999922712] [2022-11-23 14:30:54,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:30:54,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 14:30:54,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:30:54,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 14:30:54,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-23 14:30:54,720 INFO L87 Difference]: Start difference. First operand 59 states and 70 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:30:58,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:30:58,545 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2022-11-23 14:30:58,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 14:30:58,546 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 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 28 [2022-11-23 14:30:58,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:30:58,547 INFO L225 Difference]: With dead ends: 76 [2022-11-23 14:30:58,547 INFO L226 Difference]: Without dead ends: 67 [2022-11-23 14:30:58,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2022-11-23 14:30:58,548 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 212 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:30:58,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 414 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-23 14:30:58,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-23 14:30:58,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 59. [2022-11-23 14:30:58,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.1724137931034482) internal successors, (68), 58 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:30:58,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 68 transitions. [2022-11-23 14:30:58,560 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 68 transitions. Word has length 28 [2022-11-23 14:30:58,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:30:58,561 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 68 transitions. [2022-11-23 14:30:58,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:30:58,561 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 68 transitions. [2022-11-23 14:30:58,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-23 14:30:58,562 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:30:58,562 INFO L195 NwaCegarLoop]: 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] [2022-11-23 14:30:58,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-23 14:30:58,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:30:58,775 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:30:58,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:30:58,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1236711218, now seen corresponding path program 1 times [2022-11-23 14:30:58,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:30:58,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1892661650] [2022-11-23 14:30:58,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:30:58,777 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:30:58,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:30:58,778 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:30:58,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-23 14:30:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:31:00,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 14:31:00,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:31:00,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:31:00,865 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:31:00,865 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:31:00,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1892661650] [2022-11-23 14:31:00,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1892661650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:31:00,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:31:00,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:31:00,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946679490] [2022-11-23 14:31:00,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:31:00,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:31:00,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:31:00,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:31:00,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:31:00,868 INFO L87 Difference]: Start difference. First operand 59 states and 68 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:31:01,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:31:01,659 INFO L93 Difference]: Finished difference Result 67 states and 75 transitions. [2022-11-23 14:31:01,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:31:01,659 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 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 30 [2022-11-23 14:31:01,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:31:01,660 INFO L225 Difference]: With dead ends: 67 [2022-11-23 14:31:01,660 INFO L226 Difference]: Without dead ends: 34 [2022-11-23 14:31:01,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:31:01,661 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 63 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:31:01,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 129 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:31:01,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-23 14:31:01,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-23 14:31:01,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.0) internal successors, (33), 33 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:31:01,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 33 transitions. [2022-11-23 14:31:01,668 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 33 transitions. Word has length 30 [2022-11-23 14:31:01,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:31:01,668 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 33 transitions. [2022-11-23 14:31:01,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:31:01,668 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 33 transitions. [2022-11-23 14:31:01,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-23 14:31:01,669 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:31:01,669 INFO L195 NwaCegarLoop]: 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] [2022-11-23 14:31:01,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-23 14:31:01,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:31:01,883 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:31:01,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:31:01,884 INFO L85 PathProgramCache]: Analyzing trace with hash 212896805, now seen corresponding path program 1 times [2022-11-23 14:31:01,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:31:01,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1460219459] [2022-11-23 14:31:01,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:31:01,885 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:31:01,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:31:01,886 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:31:01,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-23 14:31:02,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:31:02,777 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-11-23 14:31:02,780 INFO L158 Benchmark]: Toolchain (without parser) took 65887.91ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 50.8MB in the beginning and 36.0MB in the end (delta: 14.8MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. [2022-11-23 14:31:02,781 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 75.5MB. Free memory is still 52.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:31:02,781 INFO L158 Benchmark]: CACSL2BoogieTranslator took 753.16ms. Allocated memory is still 75.5MB. Free memory was 50.6MB in the beginning and 49.7MB in the end (delta: 854.5kB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2022-11-23 14:31:02,781 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.18ms. Allocated memory is still 75.5MB. Free memory was 49.7MB in the beginning and 45.3MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 14:31:02,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 139 [2022-11-23 14:31:02,782 INFO L158 Benchmark]: Boogie Preprocessor took 133.89ms. Allocated memory is still 75.5MB. Free memory was 45.3MB in the beginning and 40.2MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 14:31:02,782 INFO L158 Benchmark]: RCFGBuilder took 27063.49ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 40.2MB in the beginning and 50.6MB in the end (delta: -10.4MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2022-11-23 14:31:02,782 INFO L158 Benchmark]: TraceAbstraction took 37836.12ms. Allocated memory is still 94.4MB. Free memory was 50.2MB in the beginning and 36.0MB in the end (delta: 14.2MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2022-11-23 14:31:02,784 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 75.5MB. Free memory is still 52.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 753.16ms. Allocated memory is still 75.5MB. Free memory was 50.6MB in the beginning and 49.7MB in the end (delta: 854.5kB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.18ms. Allocated memory is still 75.5MB. Free memory was 49.7MB in the beginning and 45.3MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 133.89ms. Allocated memory is still 75.5MB. Free memory was 45.3MB in the beginning and 40.2MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 27063.49ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 40.2MB in the beginning and 50.6MB in the end (delta: -10.4MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. * TraceAbstraction took 37836.12ms. Allocated memory is still 94.4MB. Free memory was 50.2MB in the beginning and 36.0MB in the end (delta: 14.2MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-23 14:31:02,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f227e4ac-94b0-49bb-a82c-1fa726d0095f/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9) with exit command (exit)) Received EOF on stdin. No stderr output.