./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0873b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0873b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS --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 2c38013984df369dcb527283648f854c769b33d9bd7d0315c5de697ad787e937 --- 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-8393723 [2022-11-19 06:33:44,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:33:44,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:33:44,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:33:44,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:33:44,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:33:44,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:33:44,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:33:44,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:33:44,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:33:44,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:33:44,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:33:44,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:33:44,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:33:44,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:33:44,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:33:44,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:33:44,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:33:44,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:33:44,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:33:44,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:33:44,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:33:44,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:33:44,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:33:44,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:33:44,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:33:44,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:33:44,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:33:44,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:33:44,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:33:44,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:33:44,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:33:44,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:33:44,596 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:33:44,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:33:44,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:33:44,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:33:44,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:33:44,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:33:44,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:33:44,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:33:44,602 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 06:33:44,629 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:33:44,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:33:44,629 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:33:44,630 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:33:44,630 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:33:44,630 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:33:44,631 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:33:44,631 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:33:44,631 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:33:44,631 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:33:44,631 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:33:44,631 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:33:44,632 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:33:44,632 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:33:44,632 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:33:44,632 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:33:44,632 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:33:44,632 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:33:44,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:33:44,633 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:33:44,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:33:44,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:33:44,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:33:44,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:33:44,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:33:44,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:33:44,635 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:33:44,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:33:44,635 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:33:44,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:33:44,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:33:44,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:33:44,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:33:44,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:33:44,636 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:33:44,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:33:44,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:33:44,636 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:33:44,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:33:44,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:33:44,637 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:33:44,637 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_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c38013984df369dcb527283648f854c769b33d9bd7d0315c5de697ad787e937 [2022-11-19 06:33:44,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:33:44,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:33:44,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:33:44,927 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:33:44,931 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:33:44,933 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/float-newlib/double_req_bl_0873b.c [2022-11-19 06:33:45,002 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/data/5a955e43c/4eabcb7522074fc78e12873f7832c72c/FLAGb97dd3606 [2022-11-19 06:33:45,604 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:33:45,605 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/sv-benchmarks/c/float-newlib/double_req_bl_0873b.c [2022-11-19 06:33:45,620 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/data/5a955e43c/4eabcb7522074fc78e12873f7832c72c/FLAGb97dd3606 [2022-11-19 06:33:45,903 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/data/5a955e43c/4eabcb7522074fc78e12873f7832c72c [2022-11-19 06:33:45,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:33:45,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:33:45,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:33:45,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:33:45,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:33:45,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:33:45" (1/1) ... [2022-11-19 06:33:45,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43ff3c21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:33:45, skipping insertion in model container [2022-11-19 06:33:45,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:33:45" (1/1) ... [2022-11-19 06:33:45,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:33:45,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:33:46,313 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:789) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:1873) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$59(StandardFunctionHandler.java:422) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:239) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1462) 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:2060) 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:1668) 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:1086) 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:1645) 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:1086) 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:1488) 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:3308) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2387) 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) [2022-11-19 06:33:46,323 INFO L158 Benchmark]: Toolchain (without parser) took 415.77ms. Allocated memory is still 109.1MB. Free memory was 68.3MB in the beginning and 83.6MB in the end (delta: -15.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 06:33:46,324 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:33:46,325 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.14ms. Allocated memory is still 109.1MB. Free memory was 68.1MB in the beginning and 83.6MB in the end (delta: -15.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 06:33:46,327 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 413.14ms. Allocated memory is still 109.1MB. Free memory was 68.1MB in the beginning and 83.6MB in the end (delta: -15.4MB). 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:789) 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_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0873b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS --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 2c38013984df369dcb527283648f854c769b33d9bd7d0315c5de697ad787e937 --- 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-8393723 [2022-11-19 06:33:48,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:33:48,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:33:48,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:33:48,452 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:33:48,453 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:33:48,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:33:48,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:33:48,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:33:48,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:33:48,460 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:33:48,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:33:48,462 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:33:48,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:33:48,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:33:48,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:33:48,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:33:48,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:33:48,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:33:48,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:33:48,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:33:48,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:33:48,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:33:48,478 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:33:48,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:33:48,483 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:33:48,483 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:33:48,484 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:33:48,485 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:33:48,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:33:48,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:33:48,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:33:48,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:33:48,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:33:48,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:33:48,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:33:48,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:33:48,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:33:48,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:33:48,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:33:48,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:33:48,498 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-19 06:33:48,537 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:33:48,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:33:48,545 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:33:48,545 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:33:48,546 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:33:48,546 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:33:48,547 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:33:48,547 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:33:48,547 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:33:48,547 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:33:48,548 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:33:48,549 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:33:48,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:33:48,551 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:33:48,551 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:33:48,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:33:48,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:33:48,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:33:48,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:33:48,552 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 06:33:48,552 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 06:33:48,552 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 06:33:48,553 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:33:48,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:33:48,553 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:33:48,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:33:48,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:33:48,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 06:33:48,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:33:48,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:33:48,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:33:48,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:33:48,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:33:48,556 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 06:33:48,556 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 06:33:48,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:33:48,557 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:33:48,557 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 06:33:48,557 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_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c38013984df369dcb527283648f854c769b33d9bd7d0315c5de697ad787e937 [2022-11-19 06:33:48,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:33:48,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:33:48,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:33:48,988 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:33:48,988 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:33:48,990 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/float-newlib/double_req_bl_0873b.c [2022-11-19 06:33:49,070 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/data/7b8b43cf1/9c11704c993f4e9cac4deb2993142bbc/FLAGbdd9c1fe1 [2022-11-19 06:33:49,579 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:33:49,580 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/sv-benchmarks/c/float-newlib/double_req_bl_0873b.c [2022-11-19 06:33:49,589 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/data/7b8b43cf1/9c11704c993f4e9cac4deb2993142bbc/FLAGbdd9c1fe1 [2022-11-19 06:33:49,887 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/data/7b8b43cf1/9c11704c993f4e9cac4deb2993142bbc [2022-11-19 06:33:49,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:33:49,891 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:33:49,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:33:49,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:33:49,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:33:49,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:33:49" (1/1) ... [2022-11-19 06:33:49,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aee1924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:33:49, skipping insertion in model container [2022-11-19 06:33:49,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:33:49" (1/1) ... [2022-11-19 06:33:49,920 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:33:49,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:33:50,269 WARN L234 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_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/sv-benchmarks/c/float-newlib/double_req_bl_0873b.c[13947,13960] [2022-11-19 06:33:50,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:33:50,304 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:33:50,395 WARN L234 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_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/sv-benchmarks/c/float-newlib/double_req_bl_0873b.c[13947,13960] [2022-11-19 06:33:50,395 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:33:50,437 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:33:50,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:33:50 WrapperNode [2022-11-19 06:33:50,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:33:50,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:33:50,440 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:33:50,440 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:33:50,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:33:50" (1/1) ... [2022-11-19 06:33:50,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:33:50" (1/1) ... [2022-11-19 06:33:50,526 INFO L138 Inliner]: procedures = 24, calls = 158, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 730 [2022-11-19 06:33:50,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:33:50,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:33:50,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:33:50,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:33:50,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:33:50" (1/1) ... [2022-11-19 06:33:50,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:33:50" (1/1) ... [2022-11-19 06:33:50,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:33:50" (1/1) ... [2022-11-19 06:33:50,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:33:50" (1/1) ... [2022-11-19 06:33:50,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:33:50" (1/1) ... [2022-11-19 06:33:50,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:33:50" (1/1) ... [2022-11-19 06:33:50,600 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:33:50" (1/1) ... [2022-11-19 06:33:50,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:33:50" (1/1) ... [2022-11-19 06:33:50,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:33:50,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:33:50,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:33:50,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:33:50,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:33:50" (1/1) ... [2022-11-19 06:33:50,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:33:50,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:33:50,661 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:33:50,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:33:50,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:33:50,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-11-19 06:33:50,706 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_double [2022-11-19 06:33:50,706 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_double [2022-11-19 06:33:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-11-19 06:33:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 06:33:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:33:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2022-11-19 06:33:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-19 06:33:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:33:50,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:33:50,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-19 06:33:50,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:33:50,878 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:33:50,880 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:34:59,408 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:34:59,422 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:34:59,423 INFO L300 CfgBuilder]: Removed 58 assume(true) statements. [2022-11-19 06:34:59,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:34:59 BoogieIcfgContainer [2022-11-19 06:34:59,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:34:59,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:34:59,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:34:59,439 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:34:59,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:33:49" (1/3) ... [2022-11-19 06:34:59,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca1ad44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:34:59, skipping insertion in model container [2022-11-19 06:34:59,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:33:50" (2/3) ... [2022-11-19 06:34:59,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca1ad44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:34:59, skipping insertion in model container [2022-11-19 06:34:59,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:34:59" (3/3) ... [2022-11-19 06:34:59,444 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0873b.c [2022-11-19 06:34:59,482 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:34:59,483 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:34:59,583 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:34:59,594 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;@356fe48f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:34:59,595 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:34:59,602 INFO L276 IsEmpty]: Start isEmpty. Operand has 190 states, 184 states have (on average 1.7228260869565217) internal successors, (317), 185 states have internal predecessors, (317), 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) [2022-11-19 06:34:59,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 06:34:59,611 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:34:59,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:34:59,613 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:34:59,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:34:59,622 INFO L85 PathProgramCache]: Analyzing trace with hash -164857068, now seen corresponding path program 1 times [2022-11-19 06:34:59,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:34:59,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [677912801] [2022-11-19 06:34:59,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:34:59,641 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 [2022-11-19 06:34:59,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:34:59,648 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 06:34:59,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:35:00,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:35:00,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-19 06:35:00,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:35:00,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:35:00,127 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:35:00,129 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:35:00,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [677912801] [2022-11-19 06:35:00,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [677912801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:35:00,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:35:00,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:35:00,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137632236] [2022-11-19 06:35:00,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:35:00,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 06:35:00,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 06:35:00,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 06:35:00,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 06:35:00,199 INFO L87 Difference]: Start difference. First operand has 190 states, 184 states have (on average 1.7228260869565217) internal successors, (317), 185 states have internal predecessors, (317), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:35:00,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:35:00,266 INFO L93 Difference]: Finished difference Result 378 states and 647 transitions. [2022-11-19 06:35:00,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 06:35:00,269 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 06:35:00,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:35:00,278 INFO L225 Difference]: With dead ends: 378 [2022-11-19 06:35:00,279 INFO L226 Difference]: Without dead ends: 187 [2022-11-19 06:35:00,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 06:35:00,286 INFO L413 NwaCegarLoop]: 264 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, 264 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 [2022-11-19 06:35:00,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:35:00,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-11-19 06:35:00,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2022-11-19 06:35:00,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.401098901098901) internal successors, (255), 182 states have internal predecessors, (255), 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) [2022-11-19 06:35:00,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 261 transitions. [2022-11-19 06:35:00,339 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 261 transitions. Word has length 9 [2022-11-19 06:35:00,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:35:00,340 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 261 transitions. [2022-11-19 06:35:00,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:35:00,341 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 261 transitions. [2022-11-19 06:35:00,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 06:35:00,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:35:00,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:35:00,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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)] Ended with exit code 0 [2022-11-19 06:35:00,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:35:00,552 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:35:00,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:35:00,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1290872087, now seen corresponding path program 1 times [2022-11-19 06:35:00,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:35:00,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1014099651] [2022-11-19 06:35:00,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:35:00,555 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 [2022-11-19 06:35:00,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:35:00,558 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 06:35:00,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:35:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:35:00,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 06:35:01,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:35:02,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:35:02,208 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:35:02,208 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:35:02,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1014099651] [2022-11-19 06:35:02,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1014099651] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:35:02,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:35:02,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:35:02,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763610457] [2022-11-19 06:35:02,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:35:02,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:35:02,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 06:35:02,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:35:02,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:35:02,212 INFO L87 Difference]: Start difference. First operand 187 states and 261 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2022-11-19 06:35:02,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:35:02,261 INFO L93 Difference]: Finished difference Result 191 states and 264 transitions. [2022-11-19 06:35:02,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:35:02,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 06:35:02,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:35:02,263 INFO L225 Difference]: With dead ends: 191 [2022-11-19 06:35:02,264 INFO L226 Difference]: Without dead ends: 187 [2022-11-19 06:35:02,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:35:02,266 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 0 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 40 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:35:02,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 987 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 40 Unchecked, 0.0s Time] [2022-11-19 06:35:02,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-11-19 06:35:02,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2022-11-19 06:35:02,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.3956043956043955) internal successors, (254), 182 states have internal predecessors, (254), 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) [2022-11-19 06:35:02,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 260 transitions. [2022-11-19 06:35:02,287 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 260 transitions. Word has length 11 [2022-11-19 06:35:02,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:35:02,287 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 260 transitions. [2022-11-19 06:35:02,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2022-11-19 06:35:02,288 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 260 transitions. [2022-11-19 06:35:02,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 06:35:02,289 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:35:02,289 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:35:02,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:35:02,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:35:02,502 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:35:02,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:35:02,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1358970350, now seen corresponding path program 1 times [2022-11-19 06:35:02,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:35:02,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [561519117] [2022-11-19 06:35:02,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:35:02,503 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 [2022-11-19 06:35:02,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:35:02,505 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 06:35:02,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:35:02,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:35:02,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 06:35:02,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:35:03,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:35:03,985 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:35:03,985 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:35:03,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [561519117] [2022-11-19 06:35:03,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [561519117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:35:03,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:35:03,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:35:03,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801758478] [2022-11-19 06:35:03,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:35:03,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:35:03,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 06:35:03,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:35:03,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:35:03,988 INFO L87 Difference]: Start difference. First operand 187 states and 260 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 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) [2022-11-19 06:35:07,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:35:10,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:35:12,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:35:14,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:35:18,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:35:21,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.99s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:35:23,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:35:25,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:35:27,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:35:30,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:35:33,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:35:35,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:35:38,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:35:40,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:35:43,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:35:47,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:35:49,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:35:51,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:35:56,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:35:58,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:00,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:04,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:06,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:08,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:10,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:12,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:14,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:17,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:19,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:21,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:23,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:25,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:27,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:29,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:31,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:33,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:35,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:38,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:40,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:42,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:45,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:47,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:49,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:55,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:57,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:59,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:37:01,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:37:04,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:37:06,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:37:08,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:37:10,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:37:13,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:37:15,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:37:17,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:37:19,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:37:21,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:37:23,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:37:25,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:37:27,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:37:28,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:37:28,109 INFO L93 Difference]: Finished difference Result 206 states and 282 transitions. [2022-11-19 06:37:28,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:37:28,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 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 [2022-11-19 06:37:28,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:37:28,155 INFO L225 Difference]: With dead ends: 206 [2022-11-19 06:37:28,155 INFO L226 Difference]: Without dead ends: 202 [2022-11-19 06:37:28,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:37:28,157 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 132 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 51 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 138.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 51 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 143.5s IncrementalHoareTripleChecker+Time [2022-11-19 06:37:28,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 765 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 51 Unknown, 0 Unchecked, 143.5s Time] [2022-11-19 06:37:28,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-11-19 06:37:28,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 187. [2022-11-19 06:37:28,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.3846153846153846) internal successors, (252), 182 states have internal predecessors, (252), 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) [2022-11-19 06:37:28,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 258 transitions. [2022-11-19 06:37:28,176 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 258 transitions. Word has length 13 [2022-11-19 06:37:28,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:37:28,177 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 258 transitions. [2022-11-19 06:37:28,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 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) [2022-11-19 06:37:28,177 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 258 transitions. [2022-11-19 06:37:28,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 06:37:28,178 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:37:28,178 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:37:28,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:37:28,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:37:28,387 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:37:28,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:37:28,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1358910768, now seen corresponding path program 1 times [2022-11-19 06:37:28,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:37:28,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476603069] [2022-11-19 06:37:28,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:37:28,388 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 [2022-11-19 06:37:28,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:37:28,389 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 06:37:28,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:37:28,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:37:28,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-19 06:37:28,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:37:29,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:37:29,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-11-19 06:37:30,613 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 06:37:30,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 15 [2022-11-19 06:37:33,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:37:33,077 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:37:33,078 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:37:33,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476603069] [2022-11-19 06:37:33,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [476603069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:37:33,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:37:33,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 06:37:33,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907540025] [2022-11-19 06:37:33,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:37:33,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 06:37:33,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 06:37:33,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 06:37:33,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:37:33,082 INFO L87 Difference]: Start difference. First operand 187 states and 258 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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) [2022-11-19 06:37:33,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:37:33,106 INFO L93 Difference]: Finished difference Result 191 states and 261 transitions. [2022-11-19 06:37:33,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:37:33,107 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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 [2022-11-19 06:37:33,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:37:33,108 INFO L225 Difference]: With dead ends: 191 [2022-11-19 06:37:33,109 INFO L226 Difference]: Without dead ends: 186 [2022-11-19 06:37:33,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:37:33,113 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 0 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 144 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:37:33,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1113 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 144 Unchecked, 0.0s Time] [2022-11-19 06:37:33,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-11-19 06:37:33,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2022-11-19 06:37:33,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 181 states have (on average 1.3812154696132597) internal successors, (250), 181 states have internal predecessors, (250), 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) [2022-11-19 06:37:33,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 256 transitions. [2022-11-19 06:37:33,152 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 256 transitions. Word has length 13 [2022-11-19 06:37:33,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:37:33,153 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 256 transitions. [2022-11-19 06:37:33,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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) [2022-11-19 06:37:33,153 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 256 transitions. [2022-11-19 06:37:33,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 06:37:33,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:37:33,155 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:37:33,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:37:33,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:37:33,374 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:37:33,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:37:33,374 INFO L85 PathProgramCache]: Analyzing trace with hash -2019999972, now seen corresponding path program 1 times [2022-11-19 06:37:33,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:37:33,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799406188] [2022-11-19 06:37:33,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:37:33,375 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 [2022-11-19 06:37:33,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:37:33,376 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 06:37:33,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:37:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:37:33,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 06:37:33,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:37:35,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:37:35,229 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:37:35,229 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:37:35,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1799406188] [2022-11-19 06:37:35,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1799406188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:37:35,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:37:35,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:37:35,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927677166] [2022-11-19 06:37:35,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:37:35,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:37:35,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 06:37:35,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:37:35,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:37:35,231 INFO L87 Difference]: Start difference. First operand 186 states and 256 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-11-19 06:37:35,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:37:35,246 INFO L93 Difference]: Finished difference Result 356 states and 489 transitions. [2022-11-19 06:37:35,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:37:35,247 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2022-11-19 06:37:35,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:37:35,248 INFO L225 Difference]: With dead ends: 356 [2022-11-19 06:37:35,249 INFO L226 Difference]: Without dead ends: 186 [2022-11-19 06:37:35,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:37:35,251 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 0 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:37:35,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 735 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2022-11-19 06:37:35,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-11-19 06:37:35,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2022-11-19 06:37:35,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 181 states have (on average 1.3756906077348066) internal successors, (249), 181 states have internal predecessors, (249), 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) [2022-11-19 06:37:35,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 255 transitions. [2022-11-19 06:37:35,263 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 255 transitions. Word has length 17 [2022-11-19 06:37:35,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:37:35,264 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 255 transitions. [2022-11-19 06:37:35,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-11-19 06:37:35,264 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 255 transitions. [2022-11-19 06:37:35,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 06:37:35,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:37:35,265 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:37:35,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:37:35,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:37:35,479 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:37:35,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:37:35,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1652657970, now seen corresponding path program 1 times [2022-11-19 06:37:35,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:37:35,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [946793213] [2022-11-19 06:37:35,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:37:35,481 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 [2022-11-19 06:37:35,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:37:35,482 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 06:37:35,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:37:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:37:36,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 06:37:36,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:37:37,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:37:37,977 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:37:37,977 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:37:37,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [946793213] [2022-11-19 06:37:37,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [946793213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:37:37,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:37:37,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:37:37,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554513011] [2022-11-19 06:37:37,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:37:37,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:37:37,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 06:37:37,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:37:37,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:37:37,981 INFO L87 Difference]: Start difference. First operand 186 states and 255 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2022-11-19 06:37:38,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:37:38,008 INFO L93 Difference]: Finished difference Result 374 states and 512 transitions. [2022-11-19 06:37:38,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:37:38,009 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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 [2022-11-19 06:37:38,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:37:38,010 INFO L225 Difference]: With dead ends: 374 [2022-11-19 06:37:38,011 INFO L226 Difference]: Without dead ends: 208 [2022-11-19 06:37:38,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:37:38,012 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 26 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 41 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:37:38,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 958 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 41 Unchecked, 0.0s Time] [2022-11-19 06:37:38,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-11-19 06:37:38,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 188. [2022-11-19 06:37:38,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 183 states have (on average 1.3770491803278688) internal successors, (252), 183 states have internal predecessors, (252), 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) [2022-11-19 06:37:38,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 258 transitions. [2022-11-19 06:37:38,025 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 258 transitions. Word has length 18 [2022-11-19 06:37:38,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:37:38,026 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 258 transitions. [2022-11-19 06:37:38,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2022-11-19 06:37:38,026 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 258 transitions. [2022-11-19 06:37:38,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 06:37:38,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:37:38,027 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:37:38,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:37:38,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:37:38,246 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:37:38,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:37:38,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1292901854, now seen corresponding path program 1 times [2022-11-19 06:37:38,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:37:38,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1758640521] [2022-11-19 06:37:38,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:37:38,247 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 [2022-11-19 06:37:38,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:37:38,248 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 06:37:38,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:37:38,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:37:38,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 06:37:38,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:37:41,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:37:41,281 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:37:41,281 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:37:41,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1758640521] [2022-11-19 06:37:41,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1758640521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:37:41,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:37:41,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:37:41,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249770969] [2022-11-19 06:37:41,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:37:41,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:37:41,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 06:37:41,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:37:41,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:37:41,283 INFO L87 Difference]: Start difference. First operand 188 states and 258 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2022-11-19 06:37:41,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:37:41,300 INFO L93 Difference]: Finished difference Result 196 states and 264 transitions. [2022-11-19 06:37:41,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:37:41,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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 [2022-11-19 06:37:41,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:37:41,302 INFO L225 Difference]: With dead ends: 196 [2022-11-19 06:37:41,302 INFO L226 Difference]: Without dead ends: 189 [2022-11-19 06:37:41,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:37:41,303 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 93 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 41 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:37:41,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 853 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 41 Unchecked, 0.0s Time] [2022-11-19 06:37:41,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-11-19 06:37:41,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 185. [2022-11-19 06:37:41,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 180 states have (on average 1.3666666666666667) internal successors, (246), 180 states have internal predecessors, (246), 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) [2022-11-19 06:37:41,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 252 transitions. [2022-11-19 06:37:41,316 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 252 transitions. Word has length 18 [2022-11-19 06:37:41,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:37:41,316 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 252 transitions. [2022-11-19 06:37:41,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2022-11-19 06:37:41,316 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 252 transitions. [2022-11-19 06:37:41,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 06:37:41,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:37:41,318 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:37:41,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:37:41,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:37:41,531 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:37:41,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:37:41,532 INFO L85 PathProgramCache]: Analyzing trace with hash 321846820, now seen corresponding path program 1 times [2022-11-19 06:37:41,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:37:41,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1121811209] [2022-11-19 06:37:41,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:37:41,532 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 [2022-11-19 06:37:41,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:37:41,533 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 06:37:41,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:37:42,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:37:42,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 06:37:42,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:37:43,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:37:43,839 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:37:43,839 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:37:43,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1121811209] [2022-11-19 06:37:43,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1121811209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:37:43,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:37:43,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:37:43,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134590866] [2022-11-19 06:37:43,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:37:43,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:37:43,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 06:37:43,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:37:43,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:37:43,841 INFO L87 Difference]: Start difference. First operand 185 states and 252 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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) [2022-11-19 06:37:43,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:37:43,853 INFO L93 Difference]: Finished difference Result 306 states and 408 transitions. [2022-11-19 06:37:43,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:37:43,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 19 [2022-11-19 06:37:43,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:37:43,855 INFO L225 Difference]: With dead ends: 306 [2022-11-19 06:37:43,855 INFO L226 Difference]: Without dead ends: 133 [2022-11-19 06:37:43,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:37:43,856 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 0 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:37:43,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 633 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2022-11-19 06:37:43,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-11-19 06:37:43,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2022-11-19 06:37:43,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 128 states have (on average 1.265625) internal successors, (162), 128 states have internal predecessors, (162), 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) [2022-11-19 06:37:43,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 168 transitions. [2022-11-19 06:37:43,866 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 168 transitions. Word has length 19 [2022-11-19 06:37:43,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:37:43,866 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 168 transitions. [2022-11-19 06:37:43,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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) [2022-11-19 06:37:43,867 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 168 transitions. [2022-11-19 06:37:43,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 06:37:43,867 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:37:43,868 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] [2022-11-19 06:37:43,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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)] Ended with exit code 0 [2022-11-19 06:37:44,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:37:44,092 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:37:44,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:37:44,092 INFO L85 PathProgramCache]: Analyzing trace with hash -608439596, now seen corresponding path program 1 times [2022-11-19 06:37:44,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:37:44,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605166593] [2022-11-19 06:37:44,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:37:44,093 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 [2022-11-19 06:37:44,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:37:44,094 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 06:37:44,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 (10)] Waiting until timeout for monitored process [2022-11-19 06:37:44,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:37:44,421 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_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 (10) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$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 [2022-11-19 06:37:44,426 INFO L158 Benchmark]: Toolchain (without parser) took 234535.01ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 41.4MB in the beginning and 68.5MB in the end (delta: -27.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:37:44,426 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 75.5MB. Free memory is still 58.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:37:44,426 INFO L158 Benchmark]: CACSL2BoogieTranslator took 546.01ms. Allocated memory is still 75.5MB. Free memory was 41.3MB in the beginning and 49.9MB in the end (delta: -8.7MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2022-11-19 06:37:44,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 (10)] Ended with exit code 139 [2022-11-19 06:37:44,427 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.57ms. Allocated memory is still 75.5MB. Free memory was 49.9MB in the beginning and 45.4MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 06:37:44,427 INFO L158 Benchmark]: Boogie Preprocessor took 74.69ms. Allocated memory is still 75.5MB. Free memory was 45.4MB in the beginning and 40.7MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 06:37:44,428 INFO L158 Benchmark]: RCFGBuilder took 68818.30ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 40.7MB in the beginning and 58.4MB in the end (delta: -17.7MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2022-11-19 06:37:44,428 INFO L158 Benchmark]: TraceAbstraction took 164990.20ms. Allocated memory is still 98.6MB. Free memory was 57.8MB in the beginning and 68.5MB in the end (delta: -10.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:37:44,430 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 75.5MB. Free memory is still 58.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 546.01ms. Allocated memory is still 75.5MB. Free memory was 41.3MB in the beginning and 49.9MB in the end (delta: -8.7MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.57ms. Allocated memory is still 75.5MB. Free memory was 49.9MB in the beginning and 45.4MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.69ms. Allocated memory is still 75.5MB. Free memory was 45.4MB in the beginning and 40.7MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 68818.30ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 40.7MB in the beginning and 58.4MB in the end (delta: -17.7MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. * TraceAbstraction took 164990.20ms. Allocated memory is still 98.6MB. Free memory was 57.8MB in the beginning and 68.5MB in the end (delta: -10.7MB). There was no memory consumed. 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_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 (10) 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_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 (10) 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. [2022-11-19 06:37:44,662 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-19 06:37:44,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 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_efbd5e63-e4d8-4afb-9619-22fcbf1717ca/bin/utaipan-I9t0OCRTmS/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 (10) with exit command (exit)) Received EOF on stdin. No stderr output.