./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50900107-4862-43f5-86f8-6530010009a7/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50900107-4862-43f5-86f8-6530010009a7/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50900107-4862-43f5-86f8-6530010009a7/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50900107-4862-43f5-86f8-6530010009a7/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50900107-4862-43f5-86f8-6530010009a7/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50900107-4862-43f5-86f8-6530010009a7/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash afcb5021e5e481beab65460a6812c8dbe401f7b06cf3fcadf18504395cd90d4a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:26:36,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:26:36,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:26:36,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:26:36,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:26:36,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:26:36,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:26:36,583 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:26:36,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:26:36,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:26:36,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:26:36,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:26:36,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:26:36,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:26:36,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:26:36,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:26:36,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:26:36,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:26:36,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:26:36,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:26:36,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:26:36,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:26:36,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:26:36,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:26:36,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:26:36,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:26:36,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:26:36,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:26:36,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:26:36,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:26:36,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:26:36,640 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:26:36,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:26:36,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:26:36,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:26:36,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:26:36,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:26:36,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:26:36,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:26:36,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:26:36,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:26:36,649 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50900107-4862-43f5-86f8-6530010009a7/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 15:26:36,693 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:26:36,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:26:36,694 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:26:36,694 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:26:36,695 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:26:36,696 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:26:36,696 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:26:36,696 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:26:36,697 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:26:36,697 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:26:36,698 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:26:36,698 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:26:36,699 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:26:36,699 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:26:36,699 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:26:36,699 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:26:36,700 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:26:36,700 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:26:36,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:26:36,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:26:36,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:26:36,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:26:36,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:26:36,702 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:26:36,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:26:36,703 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:26:36,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:26:36,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:26:36,704 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:26:36,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:26:36,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:26:36,705 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:26:36,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:26:36,705 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:26:36,706 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:26:36,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:26:36,706 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:26:36,707 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:26:36,707 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50900107-4862-43f5-86f8-6530010009a7/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50900107-4862-43f5-86f8-6530010009a7/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> afcb5021e5e481beab65460a6812c8dbe401f7b06cf3fcadf18504395cd90d4a [2022-11-23 15:26:36,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:26:37,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:26:37,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:26:37,008 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:26:37,009 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:26:37,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50900107-4862-43f5-86f8-6530010009a7/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i [2022-11-23 15:26:40,094 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:26:40,647 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:26:40,651 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50900107-4862-43f5-86f8-6530010009a7/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i [2022-11-23 15:26:40,698 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50900107-4862-43f5-86f8-6530010009a7/bin/utaipan-Q6hlc19bkW/data/27aec1139/b57d7dbc39844f4ea1ea6c62c40b8c08/FLAGacf8a3d9d [2022-11-23 15:26:40,719 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50900107-4862-43f5-86f8-6530010009a7/bin/utaipan-Q6hlc19bkW/data/27aec1139/b57d7dbc39844f4ea1ea6c62c40b8c08 [2022-11-23 15:26:40,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:26:40,726 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:26:40,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:26:40,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:26:40,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:26:40,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:26:40" (1/1) ... [2022-11-23 15:26:40,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@89f2f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:40, skipping insertion in model container [2022-11-23 15:26:40,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:26:40" (1/1) ... [2022-11-23 15:26:40,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:26:40,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:26:42,210 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50900107-4862-43f5-86f8-6530010009a7/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i[136556,136569] [2022-11-23 15:26:42,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:26:42,457 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:26:42,676 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50900107-4862-43f5-86f8-6530010009a7/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i[136556,136569] [2022-11-23 15:26:42,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:26:42,743 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:26:42,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:42 WrapperNode [2022-11-23 15:26:42,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:26:42,745 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:26:42,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:26:42,746 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:26:42,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:42" (1/1) ... [2022-11-23 15:26:42,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:42" (1/1) ... [2022-11-23 15:26:42,892 INFO L138 Inliner]: procedures = 173, calls = 870, calls flagged for inlining = 50, calls inlined = 47, statements flattened = 2113 [2022-11-23 15:26:42,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:26:42,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:26:42,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:26:42,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:26:42,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:42" (1/1) ... [2022-11-23 15:26:42,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:42" (1/1) ... [2022-11-23 15:26:42,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:42" (1/1) ... [2022-11-23 15:26:42,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:42" (1/1) ... [2022-11-23 15:26:43,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:42" (1/1) ... [2022-11-23 15:26:43,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:42" (1/1) ... [2022-11-23 15:26:43,060 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:42" (1/1) ... [2022-11-23 15:26:43,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:42" (1/1) ... [2022-11-23 15:26:43,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:26:43,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:26:43,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:26:43,088 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:26:43,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:42" (1/1) ... [2022-11-23 15:26:43,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:26:43,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50900107-4862-43f5-86f8-6530010009a7/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:26:43,124 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50900107-4862-43f5-86f8-6530010009a7/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:26:43,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50900107-4862-43f5-86f8-6530010009a7/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:26:43,178 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-23 15:26:43,178 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-23 15:26:43,178 INFO L130 BoogieDeclarations]: Found specification of procedure pci_bus_alloc_resource [2022-11-23 15:26:43,179 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_bus_alloc_resource [2022-11-23 15:26:43,179 INFO L130 BoogieDeclarations]: Found specification of procedure add_interval [2022-11-23 15:26:43,180 INFO L138 BoogieDeclarations]: Found implementation of procedure add_interval [2022-11-23 15:26:43,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 15:26:43,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 15:26:43,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:26:43,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 15:26:43,180 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 15:26:43,181 INFO L130 BoogieDeclarations]: Found specification of procedure sub_interval [2022-11-23 15:26:43,181 INFO L138 BoogieDeclarations]: Found implementation of procedure sub_interval [2022-11-23 15:26:43,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 15:26:43,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 15:26:43,181 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_find_mem_region [2022-11-23 15:26:43,181 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_find_mem_region [2022-11-23 15:26:43,182 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 15:26:43,182 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 15:26:43,182 INFO L130 BoogieDeclarations]: Found specification of procedure free_region [2022-11-23 15:26:43,182 INFO L138 BoogieDeclarations]: Found implementation of procedure free_region [2022-11-23 15:26:43,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_7 [2022-11-23 15:26:43,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_7 [2022-11-23 15:26:43,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:26:43,183 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-23 15:26:43,183 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-23 15:26:43,184 INFO L130 BoogieDeclarations]: Found specification of procedure __nonstatic_adjust_io_region [2022-11-23 15:26:43,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __nonstatic_adjust_io_region [2022-11-23 15:26:43,184 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-23 15:26:43,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-23 15:26:43,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-23 15:26:43,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-23 15:26:43,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_6 [2022-11-23 15:26:43,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_6 [2022-11-23 15:26:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_release_resource_db [2022-11-23 15:26:43,185 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_release_resource_db [2022-11-23 15:26:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure do_mem_probe [2022-11-23 15:26:43,185 INFO L138 BoogieDeclarations]: Found implementation of procedure do_mem_probe [2022-11-23 15:26:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_make_resource [2022-11-23 15:26:43,185 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_make_resource [2022-11-23 15:26:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 15:26:43,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 15:26:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_init [2022-11-23 15:26:43,186 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_init [2022-11-23 15:26:43,186 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_find_io [2022-11-23 15:26:43,186 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_find_io [2022-11-23 15:26:43,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-23 15:26:43,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-23 15:26:43,186 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 15:26:43,186 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 15:26:43,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:26:43,186 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-23 15:26:43,187 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-23 15:26:43,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-23 15:26:43,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-23 15:26:43,187 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_sysfs_add_rsrc [2022-11-23 15:26:43,187 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_sysfs_add_rsrc [2022-11-23 15:26:43,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:26:43,187 INFO L130 BoogieDeclarations]: Found specification of procedure static_init [2022-11-23 15:26:43,187 INFO L138 BoogieDeclarations]: Found implementation of procedure static_init [2022-11-23 15:26:43,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:26:43,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:26:43,188 INFO L130 BoogieDeclarations]: Found specification of procedure do_validate_mem [2022-11-23 15:26:43,188 INFO L138 BoogieDeclarations]: Found implementation of procedure do_validate_mem [2022-11-23 15:26:43,188 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_resource [2022-11-23 15:26:43,188 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_resource [2022-11-23 15:26:43,188 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_nonstatic_validate_mem [2022-11-23 15:26:43,188 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_nonstatic_validate_mem [2022-11-23 15:26:43,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:26:43,188 INFO L130 BoogieDeclarations]: Found specification of procedure static_find_io [2022-11-23 15:26:43,189 INFO L138 BoogieDeclarations]: Found implementation of procedure static_find_io [2022-11-23 15:26:43,189 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2022-11-23 15:26:43,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2022-11-23 15:26:43,189 INFO L130 BoogieDeclarations]: Found specification of procedure show_mem_db [2022-11-23 15:26:43,189 INFO L138 BoogieDeclarations]: Found implementation of procedure show_mem_db [2022-11-23 15:26:43,189 INFO L130 BoogieDeclarations]: Found specification of procedure adjust_io [2022-11-23 15:26:43,189 INFO L138 BoogieDeclarations]: Found implementation of procedure adjust_io [2022-11-23 15:26:43,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:26:43,189 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-23 15:26:43,190 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-23 15:26:43,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 15:26:43,190 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-23 15:26:43,190 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-23 15:26:43,190 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-23 15:26:43,190 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-23 15:26:43,190 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-23 15:26:43,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-23 15:26:43,190 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-23 15:26:43,190 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-23 15:26:43,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:26:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2022-11-23 15:26:43,191 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2022-11-23 15:26:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure adjust_memory [2022-11-23 15:26:43,191 INFO L138 BoogieDeclarations]: Found implementation of procedure adjust_memory [2022-11-23 15:26:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure adjust_resource [2022-11-23 15:26:43,191 INFO L138 BoogieDeclarations]: Found implementation of procedure adjust_resource [2022-11-23 15:26:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:26:43,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:26:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ops_mutex_of_pcmcia_socket [2022-11-23 15:26:43,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ops_mutex_of_pcmcia_socket [2022-11-23 15:26:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure claim_region [2022-11-23 15:26:43,192 INFO L138 BoogieDeclarations]: Found implementation of procedure claim_region [2022-11-23 15:26:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ops_mutex_of_pcmcia_socket [2022-11-23 15:26:43,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ops_mutex_of_pcmcia_socket [2022-11-23 15:26:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure show_io_db [2022-11-23 15:26:43,192 INFO L138 BoogieDeclarations]: Found implementation of procedure show_io_db [2022-11-23 15:26:43,844 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:26:43,851 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:26:44,150 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 15:26:46,024 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:26:46,504 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:26:46,507 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:26:46,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:26:46 BoogieIcfgContainer [2022-11-23 15:26:46,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:26:46,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:26:46,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:26:46,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:26:46,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:26:40" (1/3) ... [2022-11-23 15:26:46,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f002f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:26:46, skipping insertion in model container [2022-11-23 15:26:46,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:42" (2/3) ... [2022-11-23 15:26:46,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f002f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:26:46, skipping insertion in model container [2022-11-23 15:26:46,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:26:46" (3/3) ... [2022-11-23 15:26:46,533 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i [2022-11-23 15:26:46,552 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:26:46,553 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:26:46,628 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:26:46,635 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@641a500c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:26:46,635 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:26:46,642 INFO L276 IsEmpty]: Start isEmpty. Operand has 664 states, 439 states have (on average 1.4214123006833712) internal successors, (624), 456 states have internal predecessors, (624), 177 states have call successors, (177), 47 states have call predecessors, (177), 46 states have return successors, (168), 168 states have call predecessors, (168), 168 states have call successors, (168) [2022-11-23 15:26:46,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-23 15:26:46,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:26:46,663 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:26:46,664 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:26:46,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:26:46,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1215066796, now seen corresponding path program 1 times [2022-11-23 15:26:46,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:26:46,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943525008] [2022-11-23 15:26:46,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:26:46,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:26:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:26:47,825 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2022-11-23 15:26:47,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:26:47,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943525008] [2022-11-23 15:26:47,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943525008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:26:47,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:26:47,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:26:47,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951528376] [2022-11-23 15:26:47,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:26:47,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:26:47,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:26:47,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:26:47,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:26:47,896 INFO L87 Difference]: Start difference. First operand has 664 states, 439 states have (on average 1.4214123006833712) internal successors, (624), 456 states have internal predecessors, (624), 177 states have call successors, (177), 47 states have call predecessors, (177), 46 states have return successors, (168), 168 states have call predecessors, (168), 168 states have call successors, (168) Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-23 15:26:49,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:26:49,017 INFO L93 Difference]: Finished difference Result 1861 states and 2765 transitions. [2022-11-23 15:26:49,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:26:49,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 192 [2022-11-23 15:26:49,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:26:49,061 INFO L225 Difference]: With dead ends: 1861 [2022-11-23 15:26:49,062 INFO L226 Difference]: Without dead ends: 1224 [2022-11-23 15:26:49,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:26:49,089 INFO L413 NwaCegarLoop]: 999 mSDtfsCounter, 834 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 1855 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:26:49,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 1855 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-23 15:26:49,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2022-11-23 15:26:49,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1220. [2022-11-23 15:26:49,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 832 states have (on average 1.4098557692307692) internal successors, (1173), 840 states have internal predecessors, (1173), 297 states have call successors, (297), 91 states have call predecessors, (297), 90 states have return successors, (292), 292 states have call predecessors, (292), 292 states have call successors, (292) [2022-11-23 15:26:49,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1762 transitions. [2022-11-23 15:26:49,299 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1762 transitions. Word has length 192 [2022-11-23 15:26:49,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:26:49,303 INFO L495 AbstractCegarLoop]: Abstraction has 1220 states and 1762 transitions. [2022-11-23 15:26:49,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-23 15:26:49,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1762 transitions. [2022-11-23 15:26:49,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-23 15:26:49,316 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:26:49,316 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:26:49,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:26:49,317 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:26:49,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:26:49,318 INFO L85 PathProgramCache]: Analyzing trace with hash 2030784652, now seen corresponding path program 1 times [2022-11-23 15:26:49,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:26:49,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525918787] [2022-11-23 15:26:49,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:26:49,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:26:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:26:49,903 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2022-11-23 15:26:49,905 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:26:49,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525918787] [2022-11-23 15:26:49,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525918787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:26:49,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:26:49,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:26:49,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122383180] [2022-11-23 15:26:49,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:26:49,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:26:49,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:26:49,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:26:49,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:26:49,913 INFO L87 Difference]: Start difference. First operand 1220 states and 1762 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-23 15:26:50,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:26:50,687 INFO L93 Difference]: Finished difference Result 3502 states and 5044 transitions. [2022-11-23 15:26:50,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:26:50,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 195 [2022-11-23 15:26:50,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:26:50,705 INFO L225 Difference]: With dead ends: 3502 [2022-11-23 15:26:50,705 INFO L226 Difference]: Without dead ends: 2331 [2022-11-23 15:26:50,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:26:50,715 INFO L413 NwaCegarLoop]: 972 mSDtfsCounter, 878 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:26:50,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [878 Valid, 1738 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 15:26:50,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2331 states. [2022-11-23 15:26:50,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2331 to 2319. [2022-11-23 15:26:50,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2319 states, 1593 states have (on average 1.4155681104833646) internal successors, (2255), 1606 states have internal predecessors, (2255), 545 states have call successors, (545), 181 states have call predecessors, (545), 180 states have return successors, (540), 539 states have call predecessors, (540), 540 states have call successors, (540) [2022-11-23 15:26:50,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2319 states to 2319 states and 3340 transitions. [2022-11-23 15:26:50,844 INFO L78 Accepts]: Start accepts. Automaton has 2319 states and 3340 transitions. Word has length 195 [2022-11-23 15:26:50,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:26:50,845 INFO L495 AbstractCegarLoop]: Abstraction has 2319 states and 3340 transitions. [2022-11-23 15:26:50,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-23 15:26:50,846 INFO L276 IsEmpty]: Start isEmpty. Operand 2319 states and 3340 transitions. [2022-11-23 15:26:50,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-23 15:26:50,850 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:26:50,850 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:26:50,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:26:50,851 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:26:50,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:26:50,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1760987583, now seen corresponding path program 1 times [2022-11-23 15:26:50,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:26:50,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998617251] [2022-11-23 15:26:50,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:26:50,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:26:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:26:51,247 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2022-11-23 15:26:51,247 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:26:51,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998617251] [2022-11-23 15:26:51,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998617251] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:26:51,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:26:51,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:26:51,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616927921] [2022-11-23 15:26:51,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:26:51,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:26:51,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:26:51,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:26:51,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:26:51,256 INFO L87 Difference]: Start difference. First operand 2319 states and 3340 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-23 15:26:51,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:26:51,727 INFO L93 Difference]: Finished difference Result 2321 states and 3341 transitions. [2022-11-23 15:26:51,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:26:51,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 194 [2022-11-23 15:26:51,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:26:51,743 INFO L225 Difference]: With dead ends: 2321 [2022-11-23 15:26:51,744 INFO L226 Difference]: Without dead ends: 2318 [2022-11-23 15:26:51,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:26:51,749 INFO L413 NwaCegarLoop]: 842 mSDtfsCounter, 877 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:26:51,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 842 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 15:26:51,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2022-11-23 15:26:51,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2318. [2022-11-23 15:26:51,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 1593 states have (on average 1.4149403640929064) internal successors, (2254), 1605 states have internal predecessors, (2254), 544 states have call successors, (544), 181 states have call predecessors, (544), 180 states have return successors, (540), 539 states have call predecessors, (540), 540 states have call successors, (540) [2022-11-23 15:26:51,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 3338 transitions. [2022-11-23 15:26:51,890 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 3338 transitions. Word has length 194 [2022-11-23 15:26:51,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:26:51,891 INFO L495 AbstractCegarLoop]: Abstraction has 2318 states and 3338 transitions. [2022-11-23 15:26:51,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-23 15:26:51,893 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 3338 transitions. [2022-11-23 15:26:51,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-23 15:26:51,897 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:26:51,897 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:26:51,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:26:51,897 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:26:51,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:26:51,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1920608223, now seen corresponding path program 1 times [2022-11-23 15:26:51,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:26:51,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502647668] [2022-11-23 15:26:51,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:26:51,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:26:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:26:52,190 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2022-11-23 15:26:52,191 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:26:52,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502647668] [2022-11-23 15:26:52,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502647668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:26:52,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:26:52,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:26:52,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427212296] [2022-11-23 15:26:52,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:26:52,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:26:52,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:26:52,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:26:52,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:26:52,194 INFO L87 Difference]: Start difference. First operand 2318 states and 3338 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-23 15:26:53,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:26:53,128 INFO L93 Difference]: Finished difference Result 6737 states and 9677 transitions. [2022-11-23 15:26:53,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:26:53,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 197 [2022-11-23 15:26:53,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:26:53,158 INFO L225 Difference]: With dead ends: 6737 [2022-11-23 15:26:53,159 INFO L226 Difference]: Without dead ends: 4468 [2022-11-23 15:26:53,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:26:53,171 INFO L413 NwaCegarLoop]: 1000 mSDtfsCounter, 865 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:26:53,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [865 Valid, 1764 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 15:26:53,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4468 states. [2022-11-23 15:26:53,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4468 to 4456. [2022-11-23 15:26:53,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4456 states, 3075 states have (on average 1.4178861788617887) internal successors, (4360), 3097 states have internal predecessors, (4360), 1020 states have call successors, (1020), 361 states have call predecessors, (1020), 360 states have return successors, (1016), 1013 states have call predecessors, (1016), 1016 states have call successors, (1016) [2022-11-23 15:26:53,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4456 states to 4456 states and 6396 transitions. [2022-11-23 15:26:53,557 INFO L78 Accepts]: Start accepts. Automaton has 4456 states and 6396 transitions. Word has length 197 [2022-11-23 15:26:53,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:26:53,557 INFO L495 AbstractCegarLoop]: Abstraction has 4456 states and 6396 transitions. [2022-11-23 15:26:53,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-23 15:26:53,558 INFO L276 IsEmpty]: Start isEmpty. Operand 4456 states and 6396 transitions. [2022-11-23 15:26:53,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-23 15:26:53,562 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:26:53,562 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:26:53,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:26:53,563 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:26:53,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:26:53,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1243663431, now seen corresponding path program 1 times [2022-11-23 15:26:53,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:26:53,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413273489] [2022-11-23 15:26:53,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:26:53,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:26:53,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:26:53,874 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2022-11-23 15:26:53,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:26:53,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413273489] [2022-11-23 15:26:53,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413273489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:26:53,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:26:53,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:26:53,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481953795] [2022-11-23 15:26:53,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:26:53,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:26:53,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:26:53,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:26:53,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:26:53,877 INFO L87 Difference]: Start difference. First operand 4456 states and 6396 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-23 15:26:54,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:26:54,528 INFO L93 Difference]: Finished difference Result 4458 states and 6397 transitions. [2022-11-23 15:26:54,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:26:54,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 195 [2022-11-23 15:26:54,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:26:54,554 INFO L225 Difference]: With dead ends: 4458 [2022-11-23 15:26:54,554 INFO L226 Difference]: Without dead ends: 4455 [2022-11-23 15:26:54,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:26:54,558 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 874 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:26:54,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [874 Valid, 840 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 15:26:54,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4455 states. [2022-11-23 15:26:54,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4455 to 4455. [2022-11-23 15:26:54,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4455 states, 3075 states have (on average 1.417560975609756) internal successors, (4359), 3096 states have internal predecessors, (4359), 1019 states have call successors, (1019), 361 states have call predecessors, (1019), 360 states have return successors, (1016), 1013 states have call predecessors, (1016), 1016 states have call successors, (1016) [2022-11-23 15:26:54,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4455 states to 4455 states and 6394 transitions. [2022-11-23 15:26:54,892 INFO L78 Accepts]: Start accepts. Automaton has 4455 states and 6394 transitions. Word has length 195 [2022-11-23 15:26:54,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:26:54,892 INFO L495 AbstractCegarLoop]: Abstraction has 4455 states and 6394 transitions. [2022-11-23 15:26:54,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-23 15:26:54,893 INFO L276 IsEmpty]: Start isEmpty. Operand 4455 states and 6394 transitions. [2022-11-23 15:26:54,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-11-23 15:26:54,896 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:26:54,896 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:26:54,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:26:54,897 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:26:54,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:26:54,897 INFO L85 PathProgramCache]: Analyzing trace with hash -101430780, now seen corresponding path program 1 times [2022-11-23 15:26:54,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:26:54,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217346110] [2022-11-23 15:26:54,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:26:54,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:26:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:26:55,216 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2022-11-23 15:26:55,217 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:26:55,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217346110] [2022-11-23 15:26:55,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217346110] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:26:55,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:26:55,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:26:55,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513017998] [2022-11-23 15:26:55,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:26:55,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:26:55,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:26:55,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:26:55,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:26:55,219 INFO L87 Difference]: Start difference. First operand 4455 states and 6394 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-23 15:26:56,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:26:56,064 INFO L93 Difference]: Finished difference Result 9681 states and 13930 transitions. [2022-11-23 15:26:56,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:26:56,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 196 [2022-11-23 15:26:56,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:26:56,101 INFO L225 Difference]: With dead ends: 9681 [2022-11-23 15:26:56,101 INFO L226 Difference]: Without dead ends: 5271 [2022-11-23 15:26:56,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:26:56,123 INFO L413 NwaCegarLoop]: 892 mSDtfsCounter, 821 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 1166 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:26:56,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 1166 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 15:26:56,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5271 states. [2022-11-23 15:26:56,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5271 to 5241. [2022-11-23 15:26:56,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5241 states, 3602 states have (on average 1.402554136590783) internal successors, (5052), 3634 states have internal predecessors, (5052), 1182 states have call successors, (1182), 470 states have call predecessors, (1182), 456 states have return successors, (1202), 1160 states have call predecessors, (1202), 1178 states have call successors, (1202) [2022-11-23 15:26:56,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5241 states to 5241 states and 7436 transitions. [2022-11-23 15:26:56,646 INFO L78 Accepts]: Start accepts. Automaton has 5241 states and 7436 transitions. Word has length 196 [2022-11-23 15:26:56,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:26:56,647 INFO L495 AbstractCegarLoop]: Abstraction has 5241 states and 7436 transitions. [2022-11-23 15:26:56,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-23 15:26:56,649 INFO L276 IsEmpty]: Start isEmpty. Operand 5241 states and 7436 transitions. [2022-11-23 15:26:56,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-23 15:26:56,659 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:26:56,659 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:26:56,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:26:56,660 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:26:56,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:26:56,661 INFO L85 PathProgramCache]: Analyzing trace with hash -13648157, now seen corresponding path program 1 times [2022-11-23 15:26:56,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:26:56,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175072111] [2022-11-23 15:26:56,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:26:56,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:26:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:26:57,232 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2022-11-23 15:26:57,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:26:57,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175072111] [2022-11-23 15:26:57,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175072111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:26:57,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:26:57,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:26:57,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346017536] [2022-11-23 15:26:57,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:26:57,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:26:57,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:26:57,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:26:57,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:26:57,236 INFO L87 Difference]: Start difference. First operand 5241 states and 7436 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-23 15:26:58,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:26:58,909 INFO L93 Difference]: Finished difference Result 15445 states and 21860 transitions. [2022-11-23 15:26:58,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:26:58,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 272 [2022-11-23 15:26:58,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:26:58,998 INFO L225 Difference]: With dead ends: 15445 [2022-11-23 15:26:58,998 INFO L226 Difference]: Without dead ends: 10253 [2022-11-23 15:26:59,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:26:59,025 INFO L413 NwaCegarLoop]: 1048 mSDtfsCounter, 877 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:26:59,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 1795 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-23 15:26:59,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10253 states. [2022-11-23 15:26:59,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10253 to 10243. [2022-11-23 15:26:59,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10243 states, 7036 states have (on average 1.3996588971006254) internal successors, (9848), 7100 states have internal predecessors, (9848), 2294 states have call successors, (2294), 938 states have call predecessors, (2294), 912 states have return successors, (2338), 2252 states have call predecessors, (2338), 2290 states have call successors, (2338) [2022-11-23 15:26:59,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10243 states to 10243 states and 14480 transitions. [2022-11-23 15:26:59,882 INFO L78 Accepts]: Start accepts. Automaton has 10243 states and 14480 transitions. Word has length 272 [2022-11-23 15:26:59,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:26:59,884 INFO L495 AbstractCegarLoop]: Abstraction has 10243 states and 14480 transitions. [2022-11-23 15:26:59,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-23 15:26:59,885 INFO L276 IsEmpty]: Start isEmpty. Operand 10243 states and 14480 transitions. [2022-11-23 15:26:59,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-11-23 15:26:59,891 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:26:59,891 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:26:59,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 15:26:59,892 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:26:59,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:26:59,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1467534838, now seen corresponding path program 1 times [2022-11-23 15:26:59,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:26:59,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971611820] [2022-11-23 15:26:59,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:26:59,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:27:00,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:27:00,367 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2022-11-23 15:27:00,368 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:27:00,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971611820] [2022-11-23 15:27:00,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971611820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:27:00,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:27:00,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:27:00,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883218883] [2022-11-23 15:27:00,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:27:00,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:27:00,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:27:00,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:27:00,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:27:00,372 INFO L87 Difference]: Start difference. First operand 10243 states and 14480 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-23 15:27:02,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:27:02,721 INFO L93 Difference]: Finished difference Result 28394 states and 40059 transitions. [2022-11-23 15:27:02,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:27:02,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 274 [2022-11-23 15:27:02,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:27:02,843 INFO L225 Difference]: With dead ends: 28394 [2022-11-23 15:27:02,843 INFO L226 Difference]: Without dead ends: 18200 [2022-11-23 15:27:02,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:27:02,899 INFO L413 NwaCegarLoop]: 1392 mSDtfsCounter, 851 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 2138 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:27:02,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 2138 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-23 15:27:02,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18200 states. [2022-11-23 15:27:04,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18200 to 18191. [2022-11-23 15:27:04,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18191 states, 12484 states have (on average 1.3950656840756168) internal successors, (17416), 12600 states have internal predecessors, (17416), 4060 states have call successors, (4060), 1688 states have call predecessors, (4060), 1646 states have return successors, (4152), 3990 states have call predecessors, (4152), 4056 states have call successors, (4152) [2022-11-23 15:27:04,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18191 states to 18191 states and 25628 transitions. [2022-11-23 15:27:04,453 INFO L78 Accepts]: Start accepts. Automaton has 18191 states and 25628 transitions. Word has length 274 [2022-11-23 15:27:04,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:27:04,454 INFO L495 AbstractCegarLoop]: Abstraction has 18191 states and 25628 transitions. [2022-11-23 15:27:04,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-23 15:27:04,455 INFO L276 IsEmpty]: Start isEmpty. Operand 18191 states and 25628 transitions. [2022-11-23 15:27:04,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-11-23 15:27:04,465 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:27:04,466 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:27:04,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 15:27:04,466 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:27:04,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:27:04,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1853852157, now seen corresponding path program 1 times [2022-11-23 15:27:04,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:27:04,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677505405] [2022-11-23 15:27:04,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:27:04,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:27:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:27:05,057 INFO L134 CoverageAnalysis]: Checked inductivity of 1893 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1893 trivial. 0 not checked. [2022-11-23 15:27:05,058 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:27:05,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677505405] [2022-11-23 15:27:05,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677505405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:27:05,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:27:05,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:27:05,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897183751] [2022-11-23 15:27:05,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:27:05,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:27:05,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:27:05,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:27:05,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:27:05,061 INFO L87 Difference]: Start difference. First operand 18191 states and 25628 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-23 15:27:06,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:27:06,824 INFO L93 Difference]: Finished difference Result 20831 states and 29044 transitions. [2022-11-23 15:27:06,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:27:06,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 339 [2022-11-23 15:27:06,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:27:06,913 INFO L225 Difference]: With dead ends: 20831 [2022-11-23 15:27:06,914 INFO L226 Difference]: Without dead ends: 17575 [2022-11-23 15:27:06,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:27:06,944 INFO L413 NwaCegarLoop]: 1005 mSDtfsCounter, 304 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:27:06,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 1781 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-23 15:27:06,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17575 states. [2022-11-23 15:27:08,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17575 to 17483. [2022-11-23 15:27:08,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17483 states, 12015 states have (on average 1.3951727007906782) internal successors, (16763), 12134 states have internal predecessors, (16763), 3887 states have call successors, (3887), 1615 states have call predecessors, (3887), 1580 states have return successors, (3850), 3813 states have call predecessors, (3850), 3850 states have call successors, (3850) [2022-11-23 15:27:08,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17483 states to 17483 states and 24500 transitions. [2022-11-23 15:27:08,176 INFO L78 Accepts]: Start accepts. Automaton has 17483 states and 24500 transitions. Word has length 339 [2022-11-23 15:27:08,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:27:08,177 INFO L495 AbstractCegarLoop]: Abstraction has 17483 states and 24500 transitions. [2022-11-23 15:27:08,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-23 15:27:08,178 INFO L276 IsEmpty]: Start isEmpty. Operand 17483 states and 24500 transitions. [2022-11-23 15:27:08,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2022-11-23 15:27:08,349 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:27:08,349 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:27:08,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 15:27:08,350 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:27:08,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:27:08,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1782118363, now seen corresponding path program 1 times [2022-11-23 15:27:08,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:27:08,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568562614] [2022-11-23 15:27:08,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:27:08,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:27:08,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:27:13,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1927 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 1913 trivial. 0 not checked. [2022-11-23 15:27:13,240 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:27:13,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568562614] [2022-11-23 15:27:13,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568562614] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:27:13,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299628890] [2022-11-23 15:27:13,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:27:13,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:27:13,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50900107-4862-43f5-86f8-6530010009a7/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:27:13,245 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50900107-4862-43f5-86f8-6530010009a7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:27:13,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50900107-4862-43f5-86f8-6530010009a7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:27:14,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:27:14,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 4013 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-23 15:27:14,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:27:14,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1927 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 1907 trivial. 0 not checked. [2022-11-23 15:27:14,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:27:16,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1927 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1913 trivial. 0 not checked. [2022-11-23 15:27:16,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299628890] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:27:16,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2014901507] [2022-11-23 15:27:16,763 INFO L159 IcfgInterpreter]: Started Sifa with 158 locations of interest [2022-11-23 15:27:16,763 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:27:16,768 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:27:16,774 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:27:16,774 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:27:18,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:18,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:18,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:18,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:18,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:18,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:18,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:18,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:18,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:19,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:19,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:19,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:19,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:19,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:19,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:19,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:19,154 INFO L217 Elim1Store]: Index analysis took 819 ms [2022-11-23 15:29:22,868 WARN L233 SmtUtils]: Spent 2.06m on a formula simplification. DAG size of input: 3604 DAG size of output: 1273 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 15:29:22,877 INFO L321 Elim1Store]: treesize reduction 25737, result has 8.6 percent of original size [2022-11-23 15:29:22,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 52 select indices, 52 select index equivalence classes, 662 disjoint index pairs (out of 1326 index pairs), introduced 52 new quantified variables, introduced 728 case distinctions, treesize of input 792 treesize of output 3073 [2022-11-23 15:29:26,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:26,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:26,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:26,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:26,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:26,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:26,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:26,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:26,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:26,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:26,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:26,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:26,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:26,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:26,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:26,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:26,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 35 select indices, 35 select index equivalence classes, 1291 disjoint index pairs (out of 595 index pairs), introduced 35 new quantified variables, introduced 0 case distinctions, treesize of input 227 treesize of output 361 [2022-11-23 15:29:40,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 15:29:40,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-23 15:29:40,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-23 15:29:46,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:46,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:46,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:46,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:46,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:46,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:46,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:46,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:46,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:46,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:46,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:46,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:46,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:46,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:46,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:46,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:46,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 52 select indices, 52 select index equivalence classes, 1326 disjoint index pairs (out of 1326 index pairs), introduced 52 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 157 [2022-11-23 15:29:47,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:47,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:47,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:47,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:47,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:47,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:47,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:47,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:47,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:47,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:47,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:47,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:47,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:47,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:47,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:47,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:47,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 51 select indices, 51 select index equivalence classes, 1291 disjoint index pairs (out of 1275 index pairs), introduced 51 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 154 [2022-11-23 15:29:48,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:48,846 INFO L217 Elim1Store]: Index analysis took 192 ms [2022-11-23 15:29:48,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 73 select indices, 73 select index equivalence classes, 502 disjoint index pairs (out of 2628 index pairs), introduced 73 new quantified variables, introduced 0 case distinctions, treesize of input 626 treesize of output 220 [2022-11-23 15:30:06,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:06,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:06,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:06,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:06,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:06,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:06,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:06,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:06,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:06,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:06,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:06,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:06,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:06,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:06,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:06,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:06,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 52 select indices, 52 select index equivalence classes, 1326 disjoint index pairs (out of 1326 index pairs), introduced 52 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 157 [2022-11-23 15:30:07,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,408 INFO L217 Elim1Store]: Index analysis took 134 ms [2022-11-23 15:30:07,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 73 select indices, 73 select index equivalence classes, 502 disjoint index pairs (out of 2628 index pairs), introduced 73 new quantified variables, introduced 0 case distinctions, treesize of input 626 treesize of output 220 [2022-11-23 15:30:07,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:07,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 51 select indices, 51 select index equivalence classes, 1291 disjoint index pairs (out of 1275 index pairs), introduced 51 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 154 [2022-11-23 15:30:24,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 15:30:24,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-23 15:30:24,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 15:30:32,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-23 15:30:33,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 15:30:34,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 15:30:50,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 15:30:51,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 15:30:51,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-23 15:30:58,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 15:30:59,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 15:30:59,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-23 15:33:13,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-23 15:33:14,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 15:33:14,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 15:33:17,783 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 15:33:17,786 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 15:33:17,864 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 15:37:40,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 15:37:41,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 15:37:41,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-23 15:37:43,890 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 15:37:43,921 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 15:37:43,950 WARN L207 Elim1Store]: Array PQE input equivalent to false