./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH --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 64bit --witnessprinter.graph.data.programhash ba6eb72b2235d93ac0dcdd3f0e672793184c4cf65112c581319750a174c5bca8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:38:16,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:38:16,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:38:16,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:38:16,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:38:16,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:38:16,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:38:16,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:38:16,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:38:16,843 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:38:16,844 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:38:16,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:38:16,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:38:16,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:38:16,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:38:16,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:38:16,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:38:16,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:38:16,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:38:16,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:38:16,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:38:16,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:38:16,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:38:16,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:38:16,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:38:16,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:38:16,867 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:38:16,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:38:16,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:38:16,870 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:38:16,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:38:16,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:38:16,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:38:16,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:38:16,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:38:16,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:38:16,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:38:16,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:38:16,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:38:16,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:38:16,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:38:16,879 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:38:16,902 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:38:16,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:38:16,903 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:38:16,904 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:38:16,904 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:38:16,904 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:38:16,904 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:38:16,904 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:38:16,905 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:38:16,905 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:38:16,905 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:38:16,905 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:38:16,906 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:38:16,906 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:38:16,906 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:38:16,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:38:16,907 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:38:16,907 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:38:16,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:38:16,908 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:38:16,908 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:38:16,908 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:38:16,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:38:16,908 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:38:16,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:38:16,909 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:38:16,909 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:38:16,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:38:16,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:38:16,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:38:16,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:38:16,910 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:38:16,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:38:16,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:38:16,911 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:38:16,911 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:38:16,911 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba6eb72b2235d93ac0dcdd3f0e672793184c4cf65112c581319750a174c5bca8 [2021-11-03 04:38:17,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:38:17,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:38:17,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:38:17,155 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:38:17,156 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:38:17,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i [2021-11-03 04:38:17,212 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/data/f139781d4/af38770e92514db7b5def7d6ff88be96/FLAG02ea90795 [2021-11-03 04:38:18,082 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:38:18,084 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i [2021-11-03 04:38:18,128 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/data/f139781d4/af38770e92514db7b5def7d6ff88be96/FLAG02ea90795 [2021-11-03 04:38:18,526 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/data/f139781d4/af38770e92514db7b5def7d6ff88be96 [2021-11-03 04:38:18,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:38:18,536 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:38:18,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:38:18,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:38:18,543 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:38:18,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:38:18" (1/1) ... [2021-11-03 04:38:18,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@472a891d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:18, skipping insertion in model container [2021-11-03 04:38:18,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:38:18" (1/1) ... [2021-11-03 04:38:18,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:38:18,668 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:38:18,976 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4493,4506] [2021-11-03 04:38:18,983 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4553,4566] [2021-11-03 04:38:19,011 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:38:19,017 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:38:20,110 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:20,110 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:20,111 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:20,112 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:20,113 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:20,127 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:20,128 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:20,130 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:20,131 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:20,132 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:20,134 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:20,134 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:20,135 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:20,674 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:38:20,676 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:38:20,677 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:38:20,678 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:38:20,679 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:38:20,680 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:38:20,681 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:38:20,682 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:38:20,682 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:38:20,683 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:38:20,879 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:38:20,894 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1437) 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.visit(CHandler.java:1381) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) 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:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) 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:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:38:20,899 INFO L168 Benchmark]: Toolchain (without parser) took 2361.92 ms. Allocated memory is still 161.5 MB. Free memory was 117.6 MB in the beginning and 93.1 MB in the end (delta: 24.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:38:20,900 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 81.8 MB. Free memory is still 40.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:38:20,901 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2359.74 ms. Allocated memory is still 161.5 MB. Free memory was 117.2 MB in the beginning and 93.1 MB in the end (delta: 24.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:38:20,902 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 81.8 MB. Free memory is still 40.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2359.74 ms. Allocated memory is still 161.5 MB. Free memory was 117.2 MB in the beginning and 93.1 MB in the end (delta: 24.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: IllegalArgumentException: byte size smaller than 1 makes no sense de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: IllegalArgumentException: byte size smaller than 1 makes no sense: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH --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 64bit --witnessprinter.graph.data.programhash ba6eb72b2235d93ac0dcdd3f0e672793184c4cf65112c581319750a174c5bca8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:38:22,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:38:22,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:38:23,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:38:23,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:38:23,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:38:23,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:38:23,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:38:23,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:38:23,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:38:23,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:38:23,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:38:23,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:38:23,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:38:23,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:38:23,027 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:38:23,028 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:38:23,029 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:38:23,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:38:23,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:38:23,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:38:23,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:38:23,038 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:38:23,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:38:23,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:38:23,043 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:38:23,043 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:38:23,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:38:23,045 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:38:23,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:38:23,046 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:38:23,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:38:23,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:38:23,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:38:23,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:38:23,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:38:23,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:38:23,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:38:23,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:38:23,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:38:23,071 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:38:23,072 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:38:23,118 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:38:23,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:38:23,119 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:38:23,120 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:38:23,120 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:38:23,120 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:38:23,120 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:38:23,120 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:38:23,121 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:38:23,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:38:23,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:38:23,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:38:23,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:38:23,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:38:23,124 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:38:23,124 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:38:23,124 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:38:23,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:38:23,125 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:38:23,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:38:23,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:38:23,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:38:23,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:38:23,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:38:23,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:38:23,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:38:23,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:38:23,127 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:38:23,127 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:38:23,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:38:23,128 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:38:23,128 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:38:23,128 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_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba6eb72b2235d93ac0dcdd3f0e672793184c4cf65112c581319750a174c5bca8 [2021-11-03 04:38:23,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:38:23,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:38:23,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:38:23,492 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:38:23,493 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:38:23,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i [2021-11-03 04:38:23,565 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/data/1598ba121/38d974f928274b0e92600b8a8b212747/FLAG4f0173ddd [2021-11-03 04:38:24,537 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:38:24,539 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i [2021-11-03 04:38:24,590 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/data/1598ba121/38d974f928274b0e92600b8a8b212747/FLAG4f0173ddd [2021-11-03 04:38:24,958 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/data/1598ba121/38d974f928274b0e92600b8a8b212747 [2021-11-03 04:38:24,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:38:24,963 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:38:24,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:38:24,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:38:24,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:38:24,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:38:24" (1/1) ... [2021-11-03 04:38:24,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2012cb26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:24, skipping insertion in model container [2021-11-03 04:38:24,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:38:24" (1/1) ... [2021-11-03 04:38:24,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:38:25,170 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:38:25,529 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4493,4506] [2021-11-03 04:38:25,536 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4553,4566] [2021-11-03 04:38:25,563 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:38:25,569 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:38:26,632 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:26,633 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:26,633 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:26,634 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:26,635 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:26,649 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:26,650 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:26,652 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:26,653 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:26,655 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:26,656 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:26,657 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:26,657 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:27,109 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:38:27,110 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:38:27,111 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:38:27,112 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:38:27,113 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:38:27,114 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:38:27,115 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:38:27,115 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:38:27,116 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:38:27,116 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:38:27,315 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:38:27,631 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:27,632 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:27,653 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:27,654 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:27,682 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:27,684 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:27,707 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:27,708 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:27,709 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:27,709 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:27,710 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:27,710 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:27,711 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:27,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:38:27,829 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:38:27,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:38:27,880 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4493,4506] [2021-11-03 04:38:27,881 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4553,4566] [2021-11-03 04:38:27,882 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:38:27,883 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:38:27,963 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:27,963 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:27,963 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:27,967 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:27,968 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:27,977 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:27,978 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:27,979 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:27,979 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:27,980 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:27,981 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:27,982 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:27,982 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,018 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:38:28,019 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:38:28,020 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:38:28,021 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:38:28,022 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:38:28,023 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:38:28,023 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:38:28,023 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:38:28,025 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:38:28,025 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:38:28,058 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:38:28,235 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,235 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,243 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,244 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,246 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,247 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,261 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,261 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,262 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,263 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,263 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,263 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,264 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:38:28,321 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:38:28,347 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4493,4506] [2021-11-03 04:38:28,347 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4553,4566] [2021-11-03 04:38:28,349 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:38:28,349 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:38:28,406 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,407 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,408 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,408 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,409 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,414 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,415 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,416 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,417 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,418 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,419 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,421 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,421 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,452 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:38:28,452 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:38:28,454 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:38:28,455 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:38:28,455 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:38:28,456 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:38:28,456 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:38:28,457 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:38:28,457 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:38:28,457 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:38:28,479 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:38:28,600 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,600 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,611 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,612 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,615 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,616 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,624 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,625 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,625 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,626 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,626 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,626 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,627 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:38:28,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:38:28,999 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:38:28,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:28 WrapperNode [2021-11-03 04:38:29,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:38:29,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:38:29,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:38:29,002 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:38:29,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:28" (1/1) ... [2021-11-03 04:38:29,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:28" (1/1) ... [2021-11-03 04:38:29,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:38:29,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:38:29,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:38:29,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:38:29,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:28" (1/1) ... [2021-11-03 04:38:29,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:28" (1/1) ... [2021-11-03 04:38:29,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:28" (1/1) ... [2021-11-03 04:38:29,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:28" (1/1) ... [2021-11-03 04:38:29,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:28" (1/1) ... [2021-11-03 04:38:29,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:28" (1/1) ... [2021-11-03 04:38:29,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:28" (1/1) ... [2021-11-03 04:38:29,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:38:29,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:38:29,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:38:29,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:38:29,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:28" (1/1) ... [2021-11-03 04:38:29,534 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:38:29,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:38:29,558 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:38:29,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:38:29,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-03 04:38:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:38:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:38:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:38:29,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:38:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-03 04:38:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:38:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 04:38:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:38:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:38:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:38:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:38:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:38:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:38:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:38:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:38:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:38:43,690 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:38:43,690 INFO L299 CfgBuilder]: Removed 124 assume(true) statements. [2021-11-03 04:38:43,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:38:43 BoogieIcfgContainer [2021-11-03 04:38:43,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:38:43,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:38:43,695 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:38:43,697 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:38:43,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:38:24" (1/3) ... [2021-11-03 04:38:43,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d651eb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:38:43, skipping insertion in model container [2021-11-03 04:38:43,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:28" (2/3) ... [2021-11-03 04:38:43,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d651eb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:38:43, skipping insertion in model container [2021-11-03 04:38:43,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:38:43" (3/3) ... [2021-11-03 04:38:43,700 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_move_harness.i [2021-11-03 04:38:43,705 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:38:43,705 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-03 04:38:43,751 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:38:43,756 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:38:43,756 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-03 04:38:43,772 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 113 states have (on average 1.3628318584070795) internal successors, (154), 116 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:43,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-03 04:38:43,779 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:38:43,780 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:38:43,781 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:38:43,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:38:43,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1930291544, now seen corresponding path program 1 times [2021-11-03 04:38:43,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:38:43,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54405807] [2021-11-03 04:38:43,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:43,806 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:38:43,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:38:43,813 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:38:43,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:38:47,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:38:47,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 1642 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:38:47,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:38:48,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:38:48,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:38:48,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:38:48,277 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:38:48,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [54405807] [2021-11-03 04:38:48,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [54405807] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:38:48,278 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:38:48,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:38:48,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968474886] [2021-11-03 04:38:48,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:38:48,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:38:48,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:38:48,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:38:48,305 INFO L87 Difference]: Start difference. First operand has 117 states, 113 states have (on average 1.3628318584070795) internal successors, (154), 116 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:48,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:38:48,347 INFO L93 Difference]: Finished difference Result 230 states and 303 transitions. [2021-11-03 04:38:48,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:38:48,349 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 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 60 [2021-11-03 04:38:48,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:38:48,361 INFO L225 Difference]: With dead ends: 230 [2021-11-03 04:38:48,361 INFO L226 Difference]: Without dead ends: 111 [2021-11-03 04:38:48,364 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:38:48,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-03 04:38:48,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-11-03 04:38:48,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 108 states have (on average 1.2222222222222223) internal successors, (132), 110 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:48,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 132 transitions. [2021-11-03 04:38:48,413 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 132 transitions. Word has length 60 [2021-11-03 04:38:48,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:38:48,414 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 132 transitions. [2021-11-03 04:38:48,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:48,414 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 132 transitions. [2021-11-03 04:38:48,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-03 04:38:48,421 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:38:48,421 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:38:48,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:38:48,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:38:48,638 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:38:48,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:38:48,639 INFO L85 PathProgramCache]: Analyzing trace with hash 2019289401, now seen corresponding path program 1 times [2021-11-03 04:38:48,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:38:48,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896243570] [2021-11-03 04:38:48,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:48,646 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:38:48,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:38:48,648 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:38:48,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:38:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:38:52,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 1650 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:38:52,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:38:53,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:38:53,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:38:53,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:38:53,383 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:38:53,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896243570] [2021-11-03 04:38:53,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1896243570] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:38:53,384 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:38:53,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:38:53,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180852926] [2021-11-03 04:38:53,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:38:53,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:38:53,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:38:53,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:38:53,386 INFO L87 Difference]: Start difference. First operand 111 states and 132 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:53,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:38:53,704 INFO L93 Difference]: Finished difference Result 295 states and 352 transitions. [2021-11-03 04:38:53,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:38:53,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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 63 [2021-11-03 04:38:53,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:38:53,707 INFO L225 Difference]: With dead ends: 295 [2021-11-03 04:38:53,707 INFO L226 Difference]: Without dead ends: 206 [2021-11-03 04:38:53,708 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:38:53,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-11-03 04:38:53,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 117. [2021-11-03 04:38:53,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 114 states have (on average 1.2105263157894737) internal successors, (138), 116 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:53,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 138 transitions. [2021-11-03 04:38:53,720 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 138 transitions. Word has length 63 [2021-11-03 04:38:53,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:38:53,721 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 138 transitions. [2021-11-03 04:38:53,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:53,721 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 138 transitions. [2021-11-03 04:38:53,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-03 04:38:53,722 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:38:53,723 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:38:53,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:38:53,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:38:53,937 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:38:53,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:38:53,938 INFO L85 PathProgramCache]: Analyzing trace with hash -986854087, now seen corresponding path program 1 times [2021-11-03 04:38:53,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:38:53,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [575562462] [2021-11-03 04:38:53,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:53,947 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:38:53,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:38:53,948 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:38:53,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:38:57,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:38:57,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 1656 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:38:57,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:38:57,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:38:57,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:38:58,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:38:58,148 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:38:58,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [575562462] [2021-11-03 04:38:58,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [575562462] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:38:58,149 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:38:58,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 04:38:58,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217105058] [2021-11-03 04:38:58,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:38:58,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:38:58,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:38:58,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:38:58,151 INFO L87 Difference]: Start difference. First operand 117 states and 138 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:58,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:38:58,374 INFO L93 Difference]: Finished difference Result 211 states and 249 transitions. [2021-11-03 04:38:58,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:38:58,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 67 [2021-11-03 04:38:58,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:38:58,379 INFO L225 Difference]: With dead ends: 211 [2021-11-03 04:38:58,379 INFO L226 Difference]: Without dead ends: 117 [2021-11-03 04:38:58,380 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:38:58,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-11-03 04:38:58,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 111. [2021-11-03 04:38:58,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 108 states have (on average 1.1851851851851851) internal successors, (128), 110 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:58,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 128 transitions. [2021-11-03 04:38:58,389 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 128 transitions. Word has length 67 [2021-11-03 04:38:58,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:38:58,389 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 128 transitions. [2021-11-03 04:38:58,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:58,390 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 128 transitions. [2021-11-03 04:38:58,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-03 04:38:58,391 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:38:58,391 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:38:58,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:38:58,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:38:58,597 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:38:58,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:38:58,598 INFO L85 PathProgramCache]: Analyzing trace with hash -525678101, now seen corresponding path program 1 times [2021-11-03 04:38:58,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:38:58,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1196866145] [2021-11-03 04:38:58,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:58,604 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:38:58,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:38:58,605 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:38:58,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:39:02,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:39:02,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 1722 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-03 04:39:02,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:39:03,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-03 04:39:03,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:39:03,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:39:03,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-03 04:39:04,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:39:04,092 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:39:04,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1196866145] [2021-11-03 04:39:04,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1196866145] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:39:04,093 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:39:04,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-03 04:39:04,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396455797] [2021-11-03 04:39:04,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:39:04,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:39:04,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:39:04,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:39:04,095 INFO L87 Difference]: Start difference. First operand 111 states and 128 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:39:10,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:39:10,616 INFO L93 Difference]: Finished difference Result 226 states and 262 transitions. [2021-11-03 04:39:10,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-03 04:39:10,618 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-03 04:39:10,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:39:10,620 INFO L225 Difference]: With dead ends: 226 [2021-11-03 04:39:10,620 INFO L226 Difference]: Without dead ends: 150 [2021-11-03 04:39:10,621 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-11-03 04:39:10,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-11-03 04:39:10,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 113. [2021-11-03 04:39:10,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 110 states have (on average 1.1818181818181819) internal successors, (130), 112 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:39:10,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 130 transitions. [2021-11-03 04:39:10,636 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 130 transitions. Word has length 73 [2021-11-03 04:39:10,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:39:10,636 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 130 transitions. [2021-11-03 04:39:10,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:39:10,637 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 130 transitions. [2021-11-03 04:39:10,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-03 04:39:10,638 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:39:10,639 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:39:10,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:39:10,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:39:10,845 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:39:10,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:39:10,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1413483945, now seen corresponding path program 1 times [2021-11-03 04:39:10,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:39:10,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [739056953] [2021-11-03 04:39:10,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:39:10,849 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:39:10,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:39:10,850 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:39:10,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:39:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:39:15,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 1719 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:39:15,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:39:15,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:39:15,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:39:15,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:39:15,814 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:39:15,814 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [739056953] [2021-11-03 04:39:15,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [739056953] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:39:15,815 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:39:15,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:39:15,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917303885] [2021-11-03 04:39:15,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:39:15,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:39:15,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:39:15,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:39:15,816 INFO L87 Difference]: Start difference. First operand 113 states and 130 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:39:15,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:39:15,947 INFO L93 Difference]: Finished difference Result 192 states and 222 transitions. [2021-11-03 04:39:15,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:39:15,948 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-03 04:39:15,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:39:15,950 INFO L225 Difference]: With dead ends: 192 [2021-11-03 04:39:15,950 INFO L226 Difference]: Without dead ends: 111 [2021-11-03 04:39:15,953 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:39:15,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-03 04:39:15,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-11-03 04:39:15,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 108 states have (on average 1.1666666666666667) internal successors, (126), 110 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:39:15,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 126 transitions. [2021-11-03 04:39:15,969 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 126 transitions. Word has length 73 [2021-11-03 04:39:15,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:39:15,969 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 126 transitions. [2021-11-03 04:39:15,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:39:15,970 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 126 transitions. [2021-11-03 04:39:15,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-03 04:39:15,971 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:39:15,971 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:39:16,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:39:16,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:39:16,177 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:39:16,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:39:16,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1839567536, now seen corresponding path program 1 times [2021-11-03 04:39:16,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:39:16,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [862848332] [2021-11-03 04:39:16,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:39:16,181 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:39:16,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:39:16,181 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:39:16,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:39:20,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:39:20,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 1733 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-03 04:39:20,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:39:20,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-03 04:39:20,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2021-11-03 04:39:21,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:39:21,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:39:21,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-03 04:39:21,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:39:21,621 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:39:21,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [862848332] [2021-11-03 04:39:21,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [862848332] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:39:21,621 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:39:21,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-03 04:39:21,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882040874] [2021-11-03 04:39:21,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:39:21,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:39:21,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:39:21,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:39:21,623 INFO L87 Difference]: Start difference. First operand 111 states and 126 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:39:27,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:39:27,457 INFO L93 Difference]: Finished difference Result 256 states and 292 transitions. [2021-11-03 04:39:27,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-03 04:39:27,459 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 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 75 [2021-11-03 04:39:27,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:39:27,461 INFO L225 Difference]: With dead ends: 256 [2021-11-03 04:39:27,461 INFO L226 Difference]: Without dead ends: 179 [2021-11-03 04:39:27,462 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-11-03 04:39:27,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2021-11-03 04:39:27,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 111. [2021-11-03 04:39:27,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 108 states have (on average 1.1574074074074074) internal successors, (125), 110 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:39:27,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 125 transitions. [2021-11-03 04:39:27,471 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 125 transitions. Word has length 75 [2021-11-03 04:39:27,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:39:27,471 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 125 transitions. [2021-11-03 04:39:27,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:39:27,472 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 125 transitions. [2021-11-03 04:39:27,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-03 04:39:27,473 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:39:27,473 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:39:27,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-03 04:39:27,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:39:27,689 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:39:27,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:39:27,690 INFO L85 PathProgramCache]: Analyzing trace with hash 435582489, now seen corresponding path program 1 times [2021-11-03 04:39:27,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:39:27,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [147109478] [2021-11-03 04:39:27,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:39:27,692 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:39:27,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:39:27,693 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:39:27,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:39:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:39:32,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 1746 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 04:39:32,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:39:32,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:39:32,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:39:32,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:39:32,544 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:39:32,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [147109478] [2021-11-03 04:39:32,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [147109478] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:39:32,544 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:39:32,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:39:32,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337654515] [2021-11-03 04:39:32,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:39:32,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:39:32,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:39:32,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:39:32,546 INFO L87 Difference]: Start difference. First operand 111 states and 125 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:39:32,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:39:32,792 INFO L93 Difference]: Finished difference Result 164 states and 183 transitions. [2021-11-03 04:39:32,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:39:32,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-03 04:39:32,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:39:32,794 INFO L225 Difference]: With dead ends: 164 [2021-11-03 04:39:32,794 INFO L226 Difference]: Without dead ends: 127 [2021-11-03 04:39:32,794 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:39:32,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-11-03 04:39:32,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 111. [2021-11-03 04:39:32,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 108 states have (on average 1.1481481481481481) internal successors, (124), 110 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:39:32,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 124 transitions. [2021-11-03 04:39:32,801 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 124 transitions. Word has length 76 [2021-11-03 04:39:32,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:39:32,802 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 124 transitions. [2021-11-03 04:39:32,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:39:32,803 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 124 transitions. [2021-11-03 04:39:32,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-03 04:39:32,804 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:39:32,804 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:39:32,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 04:39:33,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:39:33,017 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:39:33,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:39:33,017 INFO L85 PathProgramCache]: Analyzing trace with hash 861984692, now seen corresponding path program 1 times [2021-11-03 04:39:33,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:39:33,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008533946] [2021-11-03 04:39:33,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:39:33,020 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:39:33,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:39:33,021 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:39:33,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 04:39:37,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:39:37,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 1757 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 04:39:37,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:39:37,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2021-11-03 04:39:37,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-11-03 04:39:37,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:39:37,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:39:38,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:39:38,248 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:39:38,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1008533946] [2021-11-03 04:39:38,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1008533946] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:39:38,248 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:39:38,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-03 04:39:38,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125443312] [2021-11-03 04:39:38,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:39:38,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:39:38,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:39:38,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:39:38,250 INFO L87 Difference]: Start difference. First operand 111 states and 124 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:39:46,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:39:46,777 INFO L93 Difference]: Finished difference Result 171 states and 195 transitions. [2021-11-03 04:39:46,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 04:39:46,779 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 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 78 [2021-11-03 04:39:46,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:39:46,781 INFO L225 Difference]: With dead ends: 171 [2021-11-03 04:39:46,781 INFO L226 Difference]: Without dead ends: 133 [2021-11-03 04:39:46,782 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-11-03 04:39:46,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-11-03 04:39:46,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 111. [2021-11-03 04:39:46,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 108 states have (on average 1.1203703703703705) internal successors, (121), 110 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:39:46,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 121 transitions. [2021-11-03 04:39:46,792 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 121 transitions. Word has length 78 [2021-11-03 04:39:46,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:39:46,792 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 121 transitions. [2021-11-03 04:39:46,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:39:46,793 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 121 transitions. [2021-11-03 04:39:46,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-03 04:39:46,793 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:39:46,794 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:39:46,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 04:39:47,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:39:47,009 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:39:47,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:39:47,009 INFO L85 PathProgramCache]: Analyzing trace with hash -731740625, now seen corresponding path program 1 times [2021-11-03 04:39:47,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:39:47,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2046858266] [2021-11-03 04:39:47,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:39:47,013 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:39:47,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:39:47,014 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:39:47,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 04:39:51,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:39:51,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:39:51,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:39:51,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:39:51,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:39:51,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:39:51,856 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:39:51,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2046858266] [2021-11-03 04:39:51,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2046858266] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:39:51,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:39:51,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:39:51,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916440324] [2021-11-03 04:39:51,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:39:51,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:39:51,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:39:51,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:39:51,858 INFO L87 Difference]: Start difference. First operand 111 states and 121 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:39:51,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:39:51,884 INFO L93 Difference]: Finished difference Result 144 states and 159 transitions. [2021-11-03 04:39:51,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:39:51,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 79 [2021-11-03 04:39:51,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:39:51,886 INFO L225 Difference]: With dead ends: 144 [2021-11-03 04:39:51,886 INFO L226 Difference]: Without dead ends: 113 [2021-11-03 04:39:51,887 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:39:51,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-11-03 04:39:51,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2021-11-03 04:39:51,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 110 states have (on average 1.1181818181818182) internal successors, (123), 112 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:39:51,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 123 transitions. [2021-11-03 04:39:51,895 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 123 transitions. Word has length 79 [2021-11-03 04:39:51,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:39:51,896 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 123 transitions. [2021-11-03 04:39:51,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:39:51,896 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 123 transitions. [2021-11-03 04:39:51,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-03 04:39:51,897 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:39:51,897 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:39:51,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 04:39:52,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:39:52,104 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:39:52,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:39:52,105 INFO L85 PathProgramCache]: Analyzing trace with hash -384306449, now seen corresponding path program 1 times [2021-11-03 04:39:52,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:39:52,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2079541062] [2021-11-03 04:39:52,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:39:52,107 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:39:52,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:39:52,109 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:39:52,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 04:39:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:39:56,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 1780 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:39:56,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:39:57,046 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:39:57,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:39:57,457 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:39:57,458 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:39:57,458 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2079541062] [2021-11-03 04:39:57,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2079541062] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:39:57,458 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1139342353] [2021-11-03 04:39:57,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:39:57,458 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 04:39:57,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 04:39:57,460 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 04:39:57,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-03 04:40:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:40:01,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 1780 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:40:01,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:40:02,108 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:40:02,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:40:02,277 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:40:02,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1139342353] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:40:02,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748335794] [2021-11-03 04:40:02,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:40:02,277 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:40:02,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:40:02,285 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:40:02,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-03 04:40:04,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:40:04,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 1780 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:40:04,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:40:04,477 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:40:04,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:40:04,649 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:40:04,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748335794] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:40:04,649 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 04:40:04,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2021-11-03 04:40:04,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069676836] [2021-11-03 04:40:04,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:40:04,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:40:04,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:40:04,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:40:04,652 INFO L87 Difference]: Start difference. First operand 113 states and 123 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:40:05,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:40:05,002 INFO L93 Difference]: Finished difference Result 148 states and 165 transitions. [2021-11-03 04:40:05,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:40:05,004 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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 81 [2021-11-03 04:40:05,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:40:05,005 INFO L225 Difference]: With dead ends: 148 [2021-11-03 04:40:05,005 INFO L226 Difference]: Without dead ends: 117 [2021-11-03 04:40:05,006 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 474 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-11-03 04:40:05,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-11-03 04:40:05,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2021-11-03 04:40:05,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 114 states have (on average 1.1140350877192982) internal successors, (127), 116 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:40:05,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 127 transitions. [2021-11-03 04:40:05,031 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 127 transitions. Word has length 81 [2021-11-03 04:40:05,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:40:05,032 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 127 transitions. [2021-11-03 04:40:05,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:40:05,032 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 127 transitions. [2021-11-03 04:40:05,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-03 04:40:05,033 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:40:05,033 INFO L513 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:40:05,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 04:40:05,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-11-03 04:40:05,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-03 04:40:05,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:40:05,657 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:40:05,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:40:05,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1423326319, now seen corresponding path program 2 times [2021-11-03 04:40:05,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:40:05,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1095278462] [2021-11-03 04:40:05,660 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 04:40:05,660 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:40:05,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:40:05,662 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:40:05,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed119ab6-6ec4-447b-92b0-7c4c69129064/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-03 04:42:10,632 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-03 04:42:10,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 04:42:12,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-03 04:42:12,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:42:14,860 INFO L354 Elim1Store]: treesize reduction 1644, result has 4.7 percent of original size [2021-11-03 04:42:14,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 8 case distinctions, treesize of input 153 treesize of output 112 [2021-11-03 04:42:14,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 108 [2021-11-03 04:42:14,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 133 [2021-11-03 04:42:16,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 132 [2021-11-03 04:42:16,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 93 [2021-11-03 04:42:16,550 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 04:42:16,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 233 treesize of output 89 [2021-11-03 04:42:17,327 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-03 04:42:17,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:42:18,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 497 treesize of output 465 [2021-11-03 04:42:18,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 505 treesize of output 441 [2021-11-03 04:42:18,595 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:42:18,598 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3966