./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--video--fbdev--via--viafb.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_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/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_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/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_ce8838fc-fe17-4807-b42e-6e092f34be9e/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 79c59911d632f64892b46f6f0160c6d774def495341e39ab1ffb5f3f230d8f6a --- 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 13:48:19,692 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 13:48:19,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 13:48:19,716 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 13:48:19,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 13:48:19,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 13:48:19,728 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 13:48:19,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 13:48:19,734 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 13:48:19,739 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 13:48:19,741 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 13:48:19,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 13:48:19,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 13:48:19,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 13:48:19,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 13:48:19,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 13:48:19,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 13:48:19,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 13:48:19,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 13:48:19,763 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 13:48:19,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 13:48:19,767 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 13:48:19,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 13:48:19,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 13:48:19,779 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 13:48:19,779 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 13:48:19,780 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 13:48:19,782 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 13:48:19,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 13:48:19,783 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 13:48:19,784 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 13:48:19,785 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 13:48:19,787 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 13:48:19,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 13:48:19,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 13:48:19,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 13:48:19,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 13:48:19,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 13:48:19,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 13:48:19,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 13:48:19,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 13:48:19,816 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 13:48:19,861 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 13:48:19,861 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 13:48:19,862 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 13:48:19,864 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 13:48:19,865 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 13:48:19,865 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 13:48:19,865 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 13:48:19,865 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 13:48:19,866 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 13:48:19,866 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 13:48:19,867 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 13:48:19,867 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 13:48:19,867 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 13:48:19,868 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 13:48:19,868 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 13:48:19,868 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 13:48:19,868 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 13:48:19,869 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 13:48:19,869 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 13:48:19,870 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 13:48:19,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 13:48:19,870 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 13:48:19,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 13:48:19,871 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 13:48:19,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 13:48:19,871 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 13:48:19,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 13:48:19,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 13:48:19,872 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 13:48:19,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:48:19,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 13:48:19,873 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 13:48:19,873 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 13:48:19,873 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 13:48:19,874 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 13:48:19,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 13:48:19,874 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 13:48:19,874 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 13:48:19,875 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_ce8838fc-fe17-4807-b42e-6e092f34be9e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79c59911d632f64892b46f6f0160c6d774def495341e39ab1ffb5f3f230d8f6a [2022-11-23 13:48:20,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 13:48:20,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 13:48:20,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 13:48:20,248 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 13:48:20,249 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 13:48:20,250 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i [2022-11-23 13:48:23,230 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 13:48:24,020 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 13:48:24,021 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i [2022-11-23 13:48:24,071 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/data/ca731b290/f05af2af906a40a0b4b5e4c4aa3ddcb2/FLAGe586ca377 [2022-11-23 13:48:24,085 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/data/ca731b290/f05af2af906a40a0b4b5e4c4aa3ddcb2 [2022-11-23 13:48:24,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 13:48:24,089 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 13:48:24,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 13:48:24,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 13:48:24,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 13:48:24,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:48:24" (1/1) ... [2022-11-23 13:48:24,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e4582bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:24, skipping insertion in model container [2022-11-23 13:48:24,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:48:24" (1/1) ... [2022-11-23 13:48:24,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 13:48:24,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 13:48:24,928 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4401] [2022-11-23 13:48:24,928 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4402-4403] [2022-11-23 13:48:25,323 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_ce8838fc-fe17-4807-b42e-6e092f34be9e/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i[128353,128366] [2022-11-23 13:48:29,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:48:29,305 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 13:48:29,386 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4401] [2022-11-23 13:48:29,387 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4402-4403] [2022-11-23 13:48:29,391 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_ce8838fc-fe17-4807-b42e-6e092f34be9e/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i[128353,128366] [2022-11-23 13:48:29,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:48:30,223 INFO L208 MainTranslator]: Completed translation [2022-11-23 13:48:30,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:30 WrapperNode [2022-11-23 13:48:30,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 13:48:30,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 13:48:30,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 13:48:30,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 13:48:30,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:30" (1/1) ... [2022-11-23 13:48:30,435 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:30" (1/1) ... [2022-11-23 13:48:30,961 INFO L138 Inliner]: procedures = 543, calls = 9690, calls flagged for inlining = 292, calls inlined = 262, statements flattened = 16937 [2022-11-23 13:48:30,962 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 13:48:30,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 13:48:30,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 13:48:30,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 13:48:30,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:30" (1/1) ... [2022-11-23 13:48:30,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:30" (1/1) ... [2022-11-23 13:48:31,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:30" (1/1) ... [2022-11-23 13:48:31,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:30" (1/1) ... [2022-11-23 13:48:31,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:30" (1/1) ... [2022-11-23 13:48:31,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:30" (1/1) ... [2022-11-23 13:48:32,097 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:30" (1/1) ... [2022-11-23 13:48:32,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:30" (1/1) ... [2022-11-23 13:48:32,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 13:48:32,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 13:48:32,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 13:48:32,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 13:48:32,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:30" (1/1) ... [2022-11-23 13:48:32,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:48:32,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:48:32,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 13:48:32,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 13:48:32,566 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_par [2022-11-23 13:48:32,566 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_par [2022-11-23 13:48:32,566 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-23 13:48:32,566 INFO L130 BoogieDeclarations]: Found specification of procedure integrated_lvds_disable [2022-11-23 13:48:32,567 INFO L138 BoogieDeclarations]: Found implementation of procedure integrated_lvds_disable [2022-11-23 13:48:32,567 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lvds_identify_vt1636 [2022-11-23 13:48:32,567 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lvds_identify_vt1636 [2022-11-23 13:48:32,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-23 13:48:32,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-23 13:48:32,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 13:48:32,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 13:48:32,568 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_remove [2022-11-23 13:48:32,568 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_remove [2022-11-23 13:48:32,568 INFO L130 BoogieDeclarations]: Found specification of procedure get_sync [2022-11-23 13:48:32,568 INFO L138 BoogieDeclarations]: Found implementation of procedure get_sync [2022-11-23 13:48:32,568 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2022-11-23 13:48:32,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2022-11-23 13:48:32,569 INFO L130 BoogieDeclarations]: Found specification of procedure via_read_reg [2022-11-23 13:48:32,569 INFO L138 BoogieDeclarations]: Found implementation of procedure via_read_reg [2022-11-23 13:48:32,569 INFO L130 BoogieDeclarations]: Found specification of procedure get_pll_output_frequency [2022-11-23 13:48:32,569 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pll_output_frequency [2022-11-23 13:48:32,569 INFO L130 BoogieDeclarations]: Found specification of procedure write_dac_reg [2022-11-23 13:48:32,569 INFO L138 BoogieDeclarations]: Found implementation of procedure write_dac_reg [2022-11-23 13:48:32,570 INFO L130 BoogieDeclarations]: Found specification of procedure vx855_encode_pll [2022-11-23 13:48:32,570 INFO L138 BoogieDeclarations]: Found implementation of procedure vx855_encode_pll [2022-11-23 13:48:32,570 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_iga2_odev_proc_write [2022-11-23 13:48:32,570 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_iga2_odev_proc_write [2022-11-23 13:48:32,570 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_resume [2022-11-23 13:48:32,570 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_resume [2022-11-23 13:48:32,571 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~~bool~0~TO~VOID [2022-11-23 13:48:32,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~~bool~0~TO~VOID [2022-11-23 13:48:32,571 INFO L130 BoogieDeclarations]: Found specification of procedure via_pci_teardown_mmio [2022-11-23 13:48:32,571 INFO L138 BoogieDeclarations]: Found implementation of procedure via_pci_teardown_mmio [2022-11-23 13:48:32,571 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_remove [2022-11-23 13:48:32,571 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_remove [2022-11-23 13:48:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_enable_lvds_vt1636 [2022-11-23 13:48:32,572 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_enable_lvds_vt1636 [2022-11-23 13:48:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-23 13:48:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lock_crt [2022-11-23 13:48:32,572 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lock_crt [2022-11-23 13:48:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure via_write_misc_reg_mask [2022-11-23 13:48:32,573 INFO L138 BoogieDeclarations]: Found implementation of procedure via_write_misc_reg_mask [2022-11-23 13:48:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_alloc [2022-11-23 13:48:32,573 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_alloc [2022-11-23 13:48:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-11-23 13:48:32,573 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-11-23 13:48:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_check_var [2022-11-23 13:48:32,574 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_check_var [2022-11-23 13:48:32,574 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvp1_proc_write [2022-11-23 13:48:32,574 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvp1_proc_write [2022-11-23 13:48:32,574 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 13:48:32,574 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 13:48:32,574 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_readbyte [2022-11-23 13:48:32,575 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_readbyte [2022-11-23 13:48:32,575 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_secondary_timing [2022-11-23 13:48:32,575 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_secondary_timing [2022-11-23 13:48:32,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 13:48:32,575 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-23 13:48:32,575 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-23 13:48:32,575 INFO L130 BoogieDeclarations]: Found specification of procedure set_clock_source_common [2022-11-23 13:48:32,576 INFO L138 BoogieDeclarations]: Found implementation of procedure set_clock_source_common [2022-11-23 13:48:32,576 INFO L130 BoogieDeclarations]: Found specification of procedure set_dpa_vt1636 [2022-11-23 13:48:32,576 INFO L138 BoogieDeclarations]: Found implementation of procedure set_dpa_vt1636 [2022-11-23 13:48:32,576 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_load_FIFO_reg [2022-11-23 13:48:32,576 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_load_FIFO_reg [2022-11-23 13:48:32,576 INFO L130 BoogieDeclarations]: Found specification of procedure k800_set_primary_pll_encoded [2022-11-23 13:48:32,577 INFO L138 BoogieDeclarations]: Found implementation of procedure k800_set_primary_pll_encoded [2022-11-23 13:48:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure set_color_register [2022-11-23 13:48:32,590 INFO L138 BoogieDeclarations]: Found implementation of procedure set_color_register [2022-11-23 13:48:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-23 13:48:32,590 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-23 13:48:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure __platform_driver_register [2022-11-23 13:48:32,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __platform_driver_register [2022-11-23 13:48:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-23 13:48:32,591 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-23 13:48:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_get_best_mode [2022-11-23 13:48:32,591 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_get_best_mode [2022-11-23 13:48:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 13:48:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_i2c_write_mask_lvds [2022-11-23 13:48:32,592 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_i2c_write_mask_lvds [2022-11-23 13:48:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-23 13:48:32,592 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-23 13:48:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-11-23 13:48:32,593 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-11-23 13:48:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 13:48:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure tmds_register_write [2022-11-23 13:48:32,593 INFO L138 BoogieDeclarations]: Found implementation of procedure tmds_register_write [2022-11-23 13:48:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure tmds_register_read [2022-11-23 13:48:32,593 INFO L138 BoogieDeclarations]: Found implementation of procedure tmds_register_read [2022-11-23 13:48:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_disable_lvds_vt1636 [2022-11-23 13:48:32,594 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_disable_lvds_vt1636 [2022-11-23 13:48:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 13:48:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_mmio_read [2022-11-23 13:48:32,594 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_mmio_read [2022-11-23 13:48:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_imageblit [2022-11-23 13:48:32,595 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_imageblit [2022-11-23 13:48:32,595 INFO L130 BoogieDeclarations]: Found specification of procedure get_clk_range_index [2022-11-23 13:48:32,595 INFO L138 BoogieDeclarations]: Found implementation of procedure get_clk_range_index [2022-11-23 13:48:32,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 13:48:32,595 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 13:48:32,595 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_enable [2022-11-23 13:48:32,595 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_enable [2022-11-23 13:48:32,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-23 13:48:32,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-23 13:48:32,596 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-23 13:48:32,596 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-23 13:48:32,596 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_copyarea [2022-11-23 13:48:32,596 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_copyarea [2022-11-23 13:48:32,597 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-23 13:48:32,597 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-23 13:48:32,597 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-23 13:48:32,597 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-23 13:48:32,597 INFO L130 BoogieDeclarations]: Found specification of procedure get_var_refresh [2022-11-23 13:48:32,597 INFO L138 BoogieDeclarations]: Found implementation of procedure get_var_refresh [2022-11-23 13:48:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-23 13:48:32,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-23 13:48:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_unlock_crt [2022-11-23 13:48:32,598 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_unlock_crt [2022-11-23 13:48:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure proc_create [2022-11-23 13:48:32,598 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_create [2022-11-23 13:48:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_load_fetch_count_reg [2022-11-23 13:48:32,599 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_load_fetch_count_reg [2022-11-23 13:48:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtou8_from_user [2022-11-23 13:48:32,599 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtou8_from_user [2022-11-23 13:48:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 13:48:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_pm_register [2022-11-23 13:48:32,600 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_pm_register [2022-11-23 13:48:32,600 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2022-11-23 13:48:32,600 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2022-11-23 13:48:32,600 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_reset_engine [2022-11-23 13:48:32,600 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_reset_engine [2022-11-23 13:48:32,600 INFO L130 BoogieDeclarations]: Found specification of procedure fb_get_color_depth [2022-11-23 13:48:32,600 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_get_color_depth [2022-11-23 13:48:32,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 13:48:32,601 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lcd_disable [2022-11-23 13:48:32,601 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lcd_disable [2022-11-23 13:48:32,601 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 13:48:32,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 13:48:32,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 13:48:32,601 INFO L130 BoogieDeclarations]: Found specification of procedure get_dvi_devices [2022-11-23 13:48:32,602 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dvi_devices [2022-11-23 13:48:32,602 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 13:48:32,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 13:48:32,602 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-23 13:48:32,602 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-23 13:48:32,602 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_vt1636_proc_write [2022-11-23 13:48:32,602 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_vt1636_proc_write [2022-11-23 13:48:32,603 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 13:48:32,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 13:48:32,603 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_writebyte [2022-11-23 13:48:32,603 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_writebyte [2022-11-23 13:48:32,603 INFO L130 BoogieDeclarations]: Found specification of procedure via_gpio_set [2022-11-23 13:48:32,603 INFO L138 BoogieDeclarations]: Found implementation of procedure via_gpio_set [2022-11-23 13:48:32,604 INFO L130 BoogieDeclarations]: Found specification of procedure var_to_timing [2022-11-23 13:48:32,604 INFO L138 BoogieDeclarations]: Found implementation of procedure var_to_timing [2022-11-23 13:48:32,604 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_secondary_address [2022-11-23 13:48:32,604 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_secondary_address [2022-11-23 13:48:32,604 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_primary_timing [2022-11-23 13:48:32,604 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_primary_timing [2022-11-23 13:48:32,604 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_load_reg [2022-11-23 13:48:32,605 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_load_reg [2022-11-23 13:48:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure register_framebuffer [2022-11-23 13:48:32,605 INFO L138 BoogieDeclarations]: Found implementation of procedure register_framebuffer [2022-11-23 13:48:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-23 13:48:32,605 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-23 13:48:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_read [2022-11-23 13:48:32,605 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_read [2022-11-23 13:48:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_enable [2022-11-23 13:48:32,606 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_enable [2022-11-23 13:48:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_probe [2022-11-23 13:48:32,606 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_probe [2022-11-23 13:48:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure set_engine_pll_encoded [2022-11-23 13:48:32,606 INFO L138 BoogieDeclarations]: Found implementation of procedure set_engine_pll_encoded [2022-11-23 13:48:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure odev_update [2022-11-23 13:48:32,607 INFO L138 BoogieDeclarations]: Found implementation of procedure odev_update [2022-11-23 13:48:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 13:48:32,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 13:48:32,622 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_sync_polarity [2022-11-23 13:48:32,622 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_sync_polarity [2022-11-23 13:48:32,622 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-23 13:48:32,623 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-23 13:48:32,623 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_suspend [2022-11-23 13:48:32,623 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_suspend [2022-11-23 13:48:32,623 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_i2c_read_lvds [2022-11-23 13:48:32,623 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_i2c_read_lvds [2022-11-23 13:48:32,623 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_suspend [2022-11-23 13:48:32,624 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_suspend [2022-11-23 13:48:32,624 INFO L130 BoogieDeclarations]: Found specification of procedure via_pci_remove [2022-11-23 13:48:32,624 INFO L138 BoogieDeclarations]: Found implementation of procedure via_pci_remove [2022-11-23 13:48:32,624 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-11-23 13:48:32,624 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-11-23 13:48:32,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 13:48:32,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 13:48:32,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_platform_driver_2 [2022-11-23 13:48:32,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_platform_driver_2 [2022-11-23 13:48:32,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 13:48:32,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 13:48:32,625 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_release [2022-11-23 13:48:32,625 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_release [2022-11-23 13:48:32,625 INFO L130 BoogieDeclarations]: Found specification of procedure parse_mode [2022-11-23 13:48:32,626 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_mode [2022-11-23 13:48:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure set_lcd_output_path [2022-11-23 13:48:32,626 INFO L138 BoogieDeclarations]: Found implementation of procedure set_lcd_output_path [2022-11-23 13:48:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure via_teardown_subdevs [2022-11-23 13:48:32,626 INFO L138 BoogieDeclarations]: Found implementation of procedure via_teardown_subdevs [2022-11-23 13:48:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-11-23 13:48:32,626 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-11-23 13:48:32,627 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_state [2022-11-23 13:48:32,627 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_state [2022-11-23 13:48:32,627 INFO L130 BoogieDeclarations]: Found specification of procedure get_lcd_devices [2022-11-23 13:48:32,627 INFO L138 BoogieDeclarations]: Found implementation of procedure get_lcd_devices [2022-11-23 13:48:32,627 INFO L130 BoogieDeclarations]: Found specification of procedure probe___0 [2022-11-23 13:48:32,627 INFO L138 BoogieDeclarations]: Found implementation of procedure probe___0 [2022-11-23 13:48:32,627 INFO L130 BoogieDeclarations]: Found specification of procedure probe___1 [2022-11-23 13:48:32,628 INFO L138 BoogieDeclarations]: Found implementation of procedure probe___1 [2022-11-23 13:48:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure probe___3 [2022-11-23 13:48:32,628 INFO L138 BoogieDeclarations]: Found implementation of procedure probe___3 [2022-11-23 13:48:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_source [2022-11-23 13:48:32,628 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_source [2022-11-23 13:48:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_fill_var_timing_info [2022-11-23 13:48:32,628 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_fill_var_timing_info [2022-11-23 13:48:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-23 13:48:32,629 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-23 13:48:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_8 [2022-11-23 13:48:32,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_8 [2022-11-23 13:48:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-23 13:48:32,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-23 13:48:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2022-11-23 13:48:32,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2022-11-23 13:48:32,630 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2022-11-23 13:48:32,630 INFO L138 BoogieDeclarations]: Found implementation of procedure strsep [2022-11-23 13:48:32,630 INFO L130 BoogieDeclarations]: Found specification of procedure via_write_reg_mask [2022-11-23 13:48:32,630 INFO L138 BoogieDeclarations]: Found implementation of procedure via_write_reg_mask [2022-11-23 13:48:32,630 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~structbegin~~u16~0~u8~0~u8~0~structend~~TO~VOID [2022-11-23 13:48:32,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~structbegin~~u16~0~u8~0~u8~0~structend~~TO~VOID [2022-11-23 13:48:32,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 13:48:32,631 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 13:48:32,631 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 13:48:32,631 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 13:48:32,631 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_resume [2022-11-23 13:48:32,631 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_resume [2022-11-23 13:48:32,632 INFO L130 BoogieDeclarations]: Found specification of procedure via_resume [2022-11-23 13:48:32,632 INFO L138 BoogieDeclarations]: Found implementation of procedure via_resume [2022-11-23 13:48:32,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 13:48:32,632 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-23 13:48:32,632 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-23 13:48:32,632 INFO L130 BoogieDeclarations]: Found specification of procedure cle266_encode_pll [2022-11-23 13:48:32,633 INFO L138 BoogieDeclarations]: Found implementation of procedure cle266_encode_pll [2022-11-23 13:48:32,633 INFO L130 BoogieDeclarations]: Found specification of procedure proc_mkdir [2022-11-23 13:48:32,633 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_mkdir [2022-11-23 13:48:32,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 13:48:32,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-23 13:48:32,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-23 13:48:32,633 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_write_regx [2022-11-23 13:48:32,634 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_write_regx [2022-11-23 13:48:32,634 INFO L130 BoogieDeclarations]: Found specification of procedure fb_dealloc_cmap [2022-11-23 13:48:32,634 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_dealloc_cmap [2022-11-23 13:48:32,634 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u8~0~TO~int [2022-11-23 13:48:32,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u8~0~TO~int [2022-11-23 13:48:32,634 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_free [2022-11-23 13:48:32,635 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_free [2022-11-23 13:48:32,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 13:48:32,635 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-23 13:48:32,635 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-23 13:48:32,635 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_suspend [2022-11-23 13:48:32,635 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_suspend [2022-11-23 13:48:32,635 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_sync [2022-11-23 13:48:32,636 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_sync [2022-11-23 13:48:32,636 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_probe [2022-11-23 13:48:32,636 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_probe [2022-11-23 13:48:32,636 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-23 13:48:32,636 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-23 13:48:32,636 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-23 13:48:32,636 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-23 13:48:32,637 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_framebuffer [2022-11-23 13:48:32,637 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_framebuffer [2022-11-23 13:48:32,637 INFO L130 BoogieDeclarations]: Found specification of procedure get_best_mode [2022-11-23 13:48:32,637 INFO L138 BoogieDeclarations]: Found implementation of procedure get_best_mode [2022-11-23 13:48:32,637 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_probe [2022-11-23 13:48:32,637 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_probe [2022-11-23 13:48:32,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-23 13:48:32,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-23 13:48:32,638 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvp0_proc_write [2022-11-23 13:48:32,638 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvp0_proc_write [2022-11-23 13:48:32,638 INFO L130 BoogieDeclarations]: Found specification of procedure get_pll_config [2022-11-23 13:48:32,638 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pll_config [2022-11-23 13:48:32,638 INFO L130 BoogieDeclarations]: Found specification of procedure parse_port [2022-11-23 13:48:32,638 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_port [2022-11-23 13:48:32,639 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_update_fix [2022-11-23 13:48:32,639 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_update_fix [2022-11-23 13:48:32,639 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~u8~0~TO~VOID [2022-11-23 13:48:32,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~u8~0~TO~VOID [2022-11-23 13:48:32,639 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modedb [2022-11-23 13:48:32,639 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modedb [2022-11-23 13:48:32,639 INFO L130 BoogieDeclarations]: Found specification of procedure via_write_reg [2022-11-23 13:48:32,640 INFO L138 BoogieDeclarations]: Found implementation of procedure via_write_reg [2022-11-23 13:48:32,640 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-11-23 13:48:32,640 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-11-23 13:48:32,640 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_fillrect [2022-11-23 13:48:32,640 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_fillrect [2022-11-23 13:48:32,640 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_setup_fixinfo [2022-11-23 13:48:32,640 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_setup_fixinfo [2022-11-23 13:48:32,641 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_vclock [2022-11-23 13:48:32,641 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_vclock [2022-11-23 13:48:32,641 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_sense [2022-11-23 13:48:32,641 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_sense [2022-11-23 13:48:32,641 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_iga_path [2022-11-23 13:48:32,641 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_iga_path [2022-11-23 13:48:32,641 INFO L130 BoogieDeclarations]: Found specification of procedure check_tmds_chip [2022-11-23 13:48:32,642 INFO L138 BoogieDeclarations]: Found implementation of procedure check_tmds_chip [2022-11-23 13:48:32,642 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 13:48:32,642 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 13:48:32,642 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_pm_unregister [2022-11-23 13:48:32,642 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_pm_unregister [2022-11-23 13:48:32,642 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_get_preferred_mode [2022-11-23 13:48:32,642 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_get_preferred_mode [2022-11-23 13:48:32,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 13:48:32,643 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-11-23 13:48:32,643 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-11-23 13:48:32,643 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2022-11-23 13:48:32,643 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2022-11-23 13:48:32,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 13:48:32,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 13:48:32,644 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dfph_proc_write [2022-11-23 13:48:32,644 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dfph_proc_write [2022-11-23 13:48:32,644 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_disable [2022-11-23 13:48:32,644 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_disable [2022-11-23 13:48:32,644 INFO L130 BoogieDeclarations]: Found specification of procedure k800_encode_pll [2022-11-23 13:48:32,644 INFO L138 BoogieDeclarations]: Found implementation of procedure k800_encode_pll [2022-11-23 13:48:32,644 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-23 13:48:32,644 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-23 13:48:32,645 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-23 13:48:32,645 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-23 13:48:32,645 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_set_mode [2022-11-23 13:48:32,645 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_set_mode [2022-11-23 13:48:32,645 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lcd_enable [2022-11-23 13:48:32,645 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lcd_enable [2022-11-23 13:48:32,645 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lcd_set_mode [2022-11-23 13:48:32,646 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lcd_set_mode [2022-11-23 13:48:32,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-23 13:48:32,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-23 13:48:32,646 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_query_EDID [2022-11-23 13:48:32,646 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_query_EDID [2022-11-23 13:48:32,646 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_pan_display [2022-11-23 13:48:32,646 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_pan_display [2022-11-23 13:48:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2022-11-23 13:48:32,647 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2022-11-23 13:48:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2022-11-23 13:48:32,647 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2022-11-23 13:48:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure via_fb_pci_remove [2022-11-23 13:48:32,647 INFO L138 BoogieDeclarations]: Found implementation of procedure via_fb_pci_remove [2022-11-23 13:48:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_dpa_gfx [2022-11-23 13:48:32,648 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_dpa_gfx [2022-11-23 13:48:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure k800_set_secondary_pll_encoded [2022-11-23 13:48:32,648 INFO L138 BoogieDeclarations]: Found implementation of procedure k800_set_secondary_pll_encoded [2022-11-23 13:48:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dfpl_proc_write [2022-11-23 13:48:32,648 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dfpl_proc_write [2022-11-23 13:48:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_update_device_setting [2022-11-23 13:48:32,648 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_update_device_setting [2022-11-23 13:48:32,649 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_bus_free [2022-11-23 13:48:32,649 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_bus_free [2022-11-23 13:48:32,649 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_primary_address [2022-11-23 13:48:32,649 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_primary_address [2022-11-23 13:48:32,649 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-23 13:48:32,649 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-23 13:48:32,649 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_init_lvds_output_interface [2022-11-23 13:48:32,650 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_init_lvds_output_interface [2022-11-23 13:48:32,650 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_bpp [2022-11-23 13:48:32,650 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_bpp [2022-11-23 13:48:32,650 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-23 13:48:32,650 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-23 13:48:32,650 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_fill_crtc_timing [2022-11-23 13:48:32,651 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_fill_crtc_timing [2022-11-23 13:48:32,651 INFO L130 BoogieDeclarations]: Found specification of procedure set_source_common [2022-11-23 13:48:32,651 INFO L138 BoogieDeclarations]: Found implementation of procedure set_source_common [2022-11-23 13:48:32,651 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-23 13:48:32,651 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-23 13:48:32,651 INFO L130 BoogieDeclarations]: Found specification of procedure machine_is_olpc [2022-11-23 13:48:32,651 INFO L138 BoogieDeclarations]: Found implementation of procedure machine_is_olpc [2022-11-23 13:48:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-23 13:48:32,652 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-23 13:48:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 13:48:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_find_i2c_adapter [2022-11-23 13:48:32,652 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_find_i2c_adapter [2022-11-23 13:48:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_iga1_odev_proc_write [2022-11-23 13:48:32,652 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_iga1_odev_proc_write [2022-11-23 13:48:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_mmio_write [2022-11-23 13:48:32,653 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_mmio_write [2022-11-23 13:48:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure integrated_lvds_enable [2022-11-23 13:48:32,653 INFO L138 BoogieDeclarations]: Found implementation of procedure integrated_lvds_enable [2022-11-23 13:48:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_show_hw_cursor [2022-11-23 13:48:32,653 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_show_hw_cursor [2022-11-23 13:48:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtou8 [2022-11-23 13:48:32,654 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtou8 [2022-11-23 13:48:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2022-11-23 13:48:32,654 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2022-11-23 13:48:34,421 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 13:48:34,425 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 13:48:38,911 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 13:49:30,761 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 13:49:41,087 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 13:49:41,087 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 13:49:41,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:49:41 BoogieIcfgContainer [2022-11-23 13:49:41,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 13:49:41,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 13:49:41,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 13:49:41,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 13:49:41,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:48:24" (1/3) ... [2022-11-23 13:49:41,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f495e7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:49:41, skipping insertion in model container [2022-11-23 13:49:41,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:30" (2/3) ... [2022-11-23 13:49:41,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f495e7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:49:41, skipping insertion in model container [2022-11-23 13:49:41,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:49:41" (3/3) ... [2022-11-23 13:49:41,105 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i [2022-11-23 13:49:41,127 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 13:49:41,127 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 13:49:41,279 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 13:49:41,287 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;@1c7b0d54, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 13:49:41,287 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 13:49:41,304 INFO L276 IsEmpty]: Start isEmpty. Operand has 3336 states, 2023 states have (on average 1.4127533366287692) internal successors, (2858), 2201 states have internal predecessors, (2858), 1123 states have call successors, (1123), 189 states have call predecessors, (1123), 188 states have return successors, (1104), 1043 states have call predecessors, (1104), 1104 states have call successors, (1104) [2022-11-23 13:49:41,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-23 13:49:41,353 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:49:41,353 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:49:41,354 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:49:41,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:49:41,360 INFO L85 PathProgramCache]: Analyzing trace with hash 595504613, now seen corresponding path program 1 times [2022-11-23 13:49:41,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:49:41,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075980747] [2022-11-23 13:49:41,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:49:41,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:49:42,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:49:43,373 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-23 13:49:43,374 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:49:43,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075980747] [2022-11-23 13:49:43,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075980747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:49:43,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:49:43,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:49:43,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954731031] [2022-11-23 13:49:43,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:49:43,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:49:43,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:49:43,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:49:43,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:49:43,448 INFO L87 Difference]: Start difference. First operand has 3336 states, 2023 states have (on average 1.4127533366287692) internal successors, (2858), 2201 states have internal predecessors, (2858), 1123 states have call successors, (1123), 189 states have call predecessors, (1123), 188 states have return successors, (1104), 1043 states have call predecessors, (1104), 1104 states have call successors, (1104) Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-23 13:49:45,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:49:47,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:49:52,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:49:54,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:49:56,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:49:59,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 13:50:04,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:50:06,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:50:11,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 13:50:12,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:50:14,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:50:15,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:50:15,913 INFO L93 Difference]: Finished difference Result 9306 states and 14175 transitions. [2022-11-23 13:50:15,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:50:15,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 72 [2022-11-23 13:50:15,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:50:15,977 INFO L225 Difference]: With dead ends: 9306 [2022-11-23 13:50:15,977 INFO L226 Difference]: Without dead ends: 5920 [2022-11-23 13:50:16,002 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 13:50:16,005 INFO L413 NwaCegarLoop]: 5645 mSDtfsCounter, 3960 mSDsluCounter, 4564 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3962 SdHoareTripleChecker+Valid, 10209 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.9s IncrementalHoareTripleChecker+Time [2022-11-23 13:50:16,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3962 Valid, 10209 Invalid, 1005 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 997 Invalid, 6 Unknown, 0 Unchecked, 31.9s Time] [2022-11-23 13:50:16,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5920 states. [2022-11-23 13:50:16,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5920 to 5913. [2022-11-23 13:50:16,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5913 states, 3590 states have (on average 1.392757660167131) internal successors, (5000), 3866 states have internal predecessors, (5000), 1972 states have call successors, (1972), 351 states have call predecessors, (1972), 350 states have return successors, (1971), 1860 states have call predecessors, (1971), 1971 states have call successors, (1971) [2022-11-23 13:50:16,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5913 states to 5913 states and 8943 transitions. [2022-11-23 13:50:16,754 INFO L78 Accepts]: Start accepts. Automaton has 5913 states and 8943 transitions. Word has length 72 [2022-11-23 13:50:16,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:50:16,756 INFO L495 AbstractCegarLoop]: Abstraction has 5913 states and 8943 transitions. [2022-11-23 13:50:16,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-23 13:50:16,757 INFO L276 IsEmpty]: Start isEmpty. Operand 5913 states and 8943 transitions. [2022-11-23 13:50:16,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-23 13:50:16,775 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:50:16,776 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-23 13:50:16,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 13:50:16,777 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:50:16,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:50:16,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1750823181, now seen corresponding path program 1 times [2022-11-23 13:50:16,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:50:16,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744278933] [2022-11-23 13:50:16,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:50:16,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:50:17,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:50:18,052 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-23 13:50:18,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:50:18,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744278933] [2022-11-23 13:50:18,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744278933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:50:18,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:50:18,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:50:18,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836403504] [2022-11-23 13:50:18,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:50:18,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:50:18,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:50:18,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:50:18,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:50:18,057 INFO L87 Difference]: Start difference. First operand 5913 states and 8943 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 13:50:19,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:50:25,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:50:27,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:50:28,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:50:30,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:50:33,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 13:50:35,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:50:39,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:50:44,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:50:47,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:50:48,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:50:50,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:50:52,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 13:50:54,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:50:55,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:50:55,903 INFO L93 Difference]: Finished difference Result 16355 states and 24790 transitions. [2022-11-23 13:50:55,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:50:55,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 102 [2022-11-23 13:50:55,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:50:55,974 INFO L225 Difference]: With dead ends: 16355 [2022-11-23 13:50:55,974 INFO L226 Difference]: Without dead ends: 10447 [2022-11-23 13:50:56,010 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 13:50:56,011 INFO L413 NwaCegarLoop]: 5426 mSDtfsCounter, 3878 mSDsluCounter, 4536 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 2 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3885 SdHoareTripleChecker+Valid, 9962 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.2s IncrementalHoareTripleChecker+Time [2022-11-23 13:50:56,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3885 Valid, 9962 Invalid, 971 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 960 Invalid, 9 Unknown, 0 Unchecked, 37.2s Time] [2022-11-23 13:50:56,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10447 states. [2022-11-23 13:50:56,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10447 to 10440. [2022-11-23 13:50:56,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10440 states, 6348 states have (on average 1.4045368620037808) internal successors, (8916), 6862 states have internal predecessors, (8916), 3465 states have call successors, (3465), 627 states have call predecessors, (3465), 626 states have return successors, (3465), 3259 states have call predecessors, (3465), 3464 states have call successors, (3465) [2022-11-23 13:50:56,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10440 states to 10440 states and 15846 transitions. [2022-11-23 13:50:56,764 INFO L78 Accepts]: Start accepts. Automaton has 10440 states and 15846 transitions. Word has length 102 [2022-11-23 13:50:56,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:50:56,765 INFO L495 AbstractCegarLoop]: Abstraction has 10440 states and 15846 transitions. [2022-11-23 13:50:56,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 13:50:56,767 INFO L276 IsEmpty]: Start isEmpty. Operand 10440 states and 15846 transitions. [2022-11-23 13:50:56,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-23 13:50:56,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:50:56,792 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 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] [2022-11-23 13:50:56,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 13:50:56,792 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:50:56,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:50:56,793 INFO L85 PathProgramCache]: Analyzing trace with hash 877158376, now seen corresponding path program 1 times [2022-11-23 13:50:56,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:50:56,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993671450] [2022-11-23 13:50:56,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:50:56,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:50:57,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:50:58,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1203 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2022-11-23 13:50:58,461 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:50:58,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993671450] [2022-11-23 13:50:58,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993671450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:50:58,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:50:58,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 13:50:58,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987661394] [2022-11-23 13:50:58,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:50:58,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 13:50:58,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:50:58,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 13:50:58,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 13:50:58,463 INFO L87 Difference]: Start difference. First operand 10440 states and 15846 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-23 13:51:00,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:02,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:04,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:06,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:14,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:17,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:18,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:21,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:23,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:25,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:30,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 13:51:31,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:34,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:36,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:37,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:38,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:50,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:53,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:56,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:57,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:58,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:01,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 13:52:02,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:04,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:05,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:08,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:52:08,768 INFO L93 Difference]: Finished difference Result 23728 states and 36361 transitions. [2022-11-23 13:52:08,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 13:52:08,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 222 [2022-11-23 13:52:08,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:52:08,870 INFO L225 Difference]: With dead ends: 23728 [2022-11-23 13:52:08,871 INFO L226 Difference]: Without dead ends: 13296 [2022-11-23 13:52:08,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 13:52:08,934 INFO L413 NwaCegarLoop]: 5818 mSDtfsCounter, 1082 mSDsluCounter, 16385 mSDsCounter, 0 mSdLazyCounter, 2232 mSolverCounterSat, 1 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 22203 SdHoareTripleChecker+Invalid, 2245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2232 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.8s IncrementalHoareTripleChecker+Time [2022-11-23 13:52:08,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1387 Valid, 22203 Invalid, 2245 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2232 Invalid, 12 Unknown, 0 Unchecked, 69.8s Time] [2022-11-23 13:52:08,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13296 states. [2022-11-23 13:52:09,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13296 to 10456. [2022-11-23 13:52:09,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10456 states, 6360 states have (on average 1.4037735849056603) internal successors, (8928), 6874 states have internal predecessors, (8928), 3465 states have call successors, (3465), 627 states have call predecessors, (3465), 630 states have return successors, (3475), 3263 states have call predecessors, (3475), 3464 states have call successors, (3475) [2022-11-23 13:52:09,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10456 states to 10456 states and 15868 transitions. [2022-11-23 13:52:09,810 INFO L78 Accepts]: Start accepts. Automaton has 10456 states and 15868 transitions. Word has length 222 [2022-11-23 13:52:09,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:52:09,812 INFO L495 AbstractCegarLoop]: Abstraction has 10456 states and 15868 transitions. [2022-11-23 13:52:09,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-23 13:52:09,812 INFO L276 IsEmpty]: Start isEmpty. Operand 10456 states and 15868 transitions. [2022-11-23 13:52:09,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-23 13:52:09,840 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:52:09,840 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 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] [2022-11-23 13:52:09,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 13:52:09,840 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:52:09,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:52:09,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1277984532, now seen corresponding path program 1 times [2022-11-23 13:52:09,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:52:09,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322160142] [2022-11-23 13:52:09,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:52:09,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:52:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:52:11,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1203 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1203 trivial. 0 not checked. [2022-11-23 13:52:11,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:52:11,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322160142] [2022-11-23 13:52:11,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322160142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:52:11,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:52:11,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:52:11,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848237] [2022-11-23 13:52:11,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:52:11,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:52:11,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:52:11,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:52:11,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:52:11,273 INFO L87 Difference]: Start difference. First operand 10456 states and 15868 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-23 13:52:13,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:17,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:19,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:21,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:23,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:26,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 13:52:31,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:37,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:40,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:42,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:45,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 13:52:46,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:48,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:50,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:52:50,166 INFO L93 Difference]: Finished difference Result 20361 states and 31020 transitions. [2022-11-23 13:52:50,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:52:50,167 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), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 223 [2022-11-23 13:52:50,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:52:50,291 INFO L225 Difference]: With dead ends: 20361 [2022-11-23 13:52:50,292 INFO L226 Difference]: Without dead ends: 20358 [2022-11-23 13:52:50,305 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 13:52:50,306 INFO L413 NwaCegarLoop]: 5594 mSDtfsCounter, 4549 mSDsluCounter, 4535 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4554 SdHoareTripleChecker+Valid, 10129 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.2s IncrementalHoareTripleChecker+Time [2022-11-23 13:52:50,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4554 Valid, 10129 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 939 Invalid, 10 Unknown, 0 Unchecked, 38.2s Time] [2022-11-23 13:52:50,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20358 states. [2022-11-23 13:52:51,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20358 to 20306. [2022-11-23 13:52:51,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20306 states, 12390 states have (on average 1.4102502017756255) internal successors, (17473), 13415 states have internal predecessors, (17473), 6694 states have call successors, (6694), 1214 states have call predecessors, (6694), 1221 states have return successors, (6756), 6291 states have call predecessors, (6756), 6693 states have call successors, (6756) [2022-11-23 13:52:51,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20306 states to 20306 states and 30923 transitions. [2022-11-23 13:52:51,891 INFO L78 Accepts]: Start accepts. Automaton has 20306 states and 30923 transitions. Word has length 223 [2022-11-23 13:52:51,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:52:51,892 INFO L495 AbstractCegarLoop]: Abstraction has 20306 states and 30923 transitions. [2022-11-23 13:52:51,892 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), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-23 13:52:51,892 INFO L276 IsEmpty]: Start isEmpty. Operand 20306 states and 30923 transitions. [2022-11-23 13:52:51,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-11-23 13:52:51,970 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:52:51,971 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:52:51,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 13:52:51,971 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:52:51,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:52:51,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1168840587, now seen corresponding path program 1 times [2022-11-23 13:52:51,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:52:51,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276069376] [2022-11-23 13:52:51,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:52:51,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:52:52,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:52:53,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1646 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1646 trivial. 0 not checked. [2022-11-23 13:52:53,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:52:53,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276069376] [2022-11-23 13:52:53,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276069376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:52:53,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:52:53,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:52:53,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267644680] [2022-11-23 13:52:53,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:52:53,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:52:53,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:52:53,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:52:53,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:52:53,568 INFO L87 Difference]: Start difference. First operand 20306 states and 30923 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-23 13:52:56,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:53:00,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:53:01,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:53:03,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:53:06,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:53:08,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 13:53:18,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:53:20,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:53:22,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:53:24,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 13:53:26,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:53:28,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:53:31,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:53:31,020 INFO L93 Difference]: Finished difference Result 30214 states and 46080 transitions. [2022-11-23 13:53:31,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:53:31,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 293 [2022-11-23 13:53:31,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:53:31,234 INFO L225 Difference]: With dead ends: 30214 [2022-11-23 13:53:31,234 INFO L226 Difference]: Without dead ends: 30211 [2022-11-23 13:53:31,260 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 13:53:31,261 INFO L413 NwaCegarLoop]: 5578 mSDtfsCounter, 4531 mSDsluCounter, 4535 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4536 SdHoareTripleChecker+Valid, 10113 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.6s IncrementalHoareTripleChecker+Time [2022-11-23 13:53:31,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4536 Valid, 10113 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 933 Invalid, 9 Unknown, 0 Unchecked, 36.6s Time] [2022-11-23 13:53:31,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30211 states. [2022-11-23 13:53:33,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30211 to 30159. [2022-11-23 13:53:33,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30159 states, 18422 states have (on average 1.4124959287808057) internal successors, (26021), 19958 states have internal predecessors, (26021), 9924 states have call successors, (9924), 1801 states have call predecessors, (9924), 1812 states have return successors, (10038), 9320 states have call predecessors, (10038), 9923 states have call successors, (10038) [2022-11-23 13:53:33,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30159 states to 30159 states and 45983 transitions. [2022-11-23 13:53:33,845 INFO L78 Accepts]: Start accepts. Automaton has 30159 states and 45983 transitions. Word has length 293 [2022-11-23 13:53:33,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:53:33,848 INFO L495 AbstractCegarLoop]: Abstraction has 30159 states and 45983 transitions. [2022-11-23 13:53:33,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-23 13:53:33,849 INFO L276 IsEmpty]: Start isEmpty. Operand 30159 states and 45983 transitions. [2022-11-23 13:53:33,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-11-23 13:53:33,945 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:53:33,945 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:53:33,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 13:53:33,946 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:53:33,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:53:33,946 INFO L85 PathProgramCache]: Analyzing trace with hash 940851637, now seen corresponding path program 1 times [2022-11-23 13:53:33,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:53:33,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248844370] [2022-11-23 13:53:33,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:53:33,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:53:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:53:35,839 INFO L134 CoverageAnalysis]: Checked inductivity of 1646 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1646 trivial. 0 not checked. [2022-11-23 13:53:35,839 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:53:35,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248844370] [2022-11-23 13:53:35,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248844370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:53:35,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:53:35,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:53:35,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059616743] [2022-11-23 13:53:35,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:53:35,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:53:35,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:53:35,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:53:35,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:53:35,842 INFO L87 Difference]: Start difference. First operand 30159 states and 45983 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-23 13:53:38,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:53:43,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:53:45,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:53:48,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 13:53:51,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:53:55,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:53:57,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:54:01,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:54:03,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 13:54:05,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:54:08,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:54:13,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:54:13,023 INFO L93 Difference]: Finished difference Result 40067 states and 61150 transitions. [2022-11-23 13:54:13,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:54:13,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 299 [2022-11-23 13:54:13,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:54:13,346 INFO L225 Difference]: With dead ends: 40067 [2022-11-23 13:54:13,346 INFO L226 Difference]: Without dead ends: 40064 [2022-11-23 13:54:13,367 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 13:54:13,369 INFO L413 NwaCegarLoop]: 5637 mSDtfsCounter, 4524 mSDsluCounter, 4535 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4534 SdHoareTripleChecker+Valid, 10172 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.2s IncrementalHoareTripleChecker+Time [2022-11-23 13:54:13,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4534 Valid, 10172 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 942 Invalid, 8 Unknown, 0 Unchecked, 36.2s Time] [2022-11-23 13:54:13,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40064 states. [2022-11-23 13:54:15,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40064 to 40006. [2022-11-23 13:54:15,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40006 states, 24452 states have (on average 1.4137493865532471) internal successors, (34569), 26499 states have internal predecessors, (34569), 13156 states have call successors, (13156), 2382 states have call predecessors, (13156), 2397 states have return successors, (13322), 12351 states have call predecessors, (13322), 13155 states have call successors, (13322) [2022-11-23 13:54:16,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40006 states to 40006 states and 61047 transitions. [2022-11-23 13:54:16,185 INFO L78 Accepts]: Start accepts. Automaton has 40006 states and 61047 transitions. Word has length 299 [2022-11-23 13:54:16,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:54:16,186 INFO L495 AbstractCegarLoop]: Abstraction has 40006 states and 61047 transitions. [2022-11-23 13:54:16,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-23 13:54:16,186 INFO L276 IsEmpty]: Start isEmpty. Operand 40006 states and 61047 transitions. [2022-11-23 13:54:16,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 658 [2022-11-23 13:54:16,378 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:54:16,379 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 20, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:16,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 13:54:16,380 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:54:16,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:54:16,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1245876918, now seen corresponding path program 1 times [2022-11-23 13:54:16,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:54:16,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116594508] [2022-11-23 13:54:16,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:54:16,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:54:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:54:22,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1916 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1910 trivial. 0 not checked. [2022-11-23 13:54:22,716 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:54:22,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116594508] [2022-11-23 13:54:22,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116594508] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:54:22,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:54:22,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 13:54:22,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926783071] [2022-11-23 13:54:22,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:54:22,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 13:54:22,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:54:22,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 13:54:22,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 13:54:22,719 INFO L87 Difference]: Start difference. First operand 40006 states and 61047 transitions. Second operand has 5 states, 5 states have (on average 50.6) internal successors, (253), 5 states have internal predecessors, (253), 3 states have call successors, (95), 2 states have call predecessors, (95), 1 states have return successors, (93), 3 states have call predecessors, (93), 3 states have call successors, (93) [2022-11-23 13:54:25,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:54:27,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:54:35,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:54:37,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:54:39,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:54:43,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:54:46,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:54:50,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 13:54:52,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:54:54,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:54:56,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:55:00,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:55:01,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:55:02,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:55:15,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:55:18,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:55:20,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:55:21,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:55:23,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:55:26,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 13:55:27,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:55:28,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:55:29,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:55:31,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:55:33,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:55:33,779 INFO L93 Difference]: Finished difference Result 101157 states and 157257 transitions. [2022-11-23 13:55:33,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 13:55:33,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 50.6) internal successors, (253), 5 states have internal predecessors, (253), 3 states have call successors, (95), 2 states have call predecessors, (95), 1 states have return successors, (93), 3 states have call predecessors, (93), 3 states have call successors, (93) Word has length 657 [2022-11-23 13:55:33,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:55:34,383 INFO L225 Difference]: With dead ends: 101157 [2022-11-23 13:55:34,383 INFO L226 Difference]: Without dead ends: 61159 [2022-11-23 13:55:34,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-23 13:55:34,594 INFO L413 NwaCegarLoop]: 6259 mSDtfsCounter, 4642 mSDsluCounter, 15587 mSDsCounter, 0 mSdLazyCounter, 2103 mSolverCounterSat, 1272 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4642 SdHoareTripleChecker+Valid, 21846 SdHoareTripleChecker+Invalid, 3386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1272 IncrementalHoareTripleChecker+Valid, 2103 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.2s IncrementalHoareTripleChecker+Time [2022-11-23 13:55:34,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4642 Valid, 21846 Invalid, 3386 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1272 Valid, 2103 Invalid, 11 Unknown, 0 Unchecked, 68.2s Time] [2022-11-23 13:55:34,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61159 states. [2022-11-23 13:55:37,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61159 to 40022. [2022-11-23 13:55:37,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40022 states, 24468 states have (on average 1.4134788294915808) internal successors, (34585), 26515 states have internal predecessors, (34585), 13156 states have call successors, (13156), 2382 states have call predecessors, (13156), 2397 states have return successors, (13322), 12351 states have call predecessors, (13322), 13155 states have call successors, (13322) [2022-11-23 13:55:37,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40022 states to 40022 states and 61063 transitions. [2022-11-23 13:55:37,624 INFO L78 Accepts]: Start accepts. Automaton has 40022 states and 61063 transitions. Word has length 657 [2022-11-23 13:55:37,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:55:37,625 INFO L495 AbstractCegarLoop]: Abstraction has 40022 states and 61063 transitions. [2022-11-23 13:55:37,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.6) internal successors, (253), 5 states have internal predecessors, (253), 3 states have call successors, (95), 2 states have call predecessors, (95), 1 states have return successors, (93), 3 states have call predecessors, (93), 3 states have call successors, (93) [2022-11-23 13:55:37,626 INFO L276 IsEmpty]: Start isEmpty. Operand 40022 states and 61063 transitions. [2022-11-23 13:55:37,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2022-11-23 13:55:37,788 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:55:37,788 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 20, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:55:37,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 13:55:37,789 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:55:37,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:55:37,790 INFO L85 PathProgramCache]: Analyzing trace with hash -851493890, now seen corresponding path program 1 times [2022-11-23 13:55:37,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:55:37,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418184748] [2022-11-23 13:55:37,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:55:37,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:55:39,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:55:42,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1916 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 1906 trivial. 0 not checked. [2022-11-23 13:55:42,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:55:42,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418184748] [2022-11-23 13:55:42,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418184748] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:55:42,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672724920] [2022-11-23 13:55:42,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:55:42,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:55:42,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:55:42,730 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:55:42,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 13:55:51,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:55:51,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 23273 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 13:55:51,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:55:51,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1916 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 1541 trivial. 0 not checked. [2022-11-23 13:55:51,973 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:55:51,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672724920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:55:51,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 13:55:51,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-11-23 13:55:51,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356325978] [2022-11-23 13:55:51,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:55:51,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:55:51,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:55:51,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:55:51,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:55:51,977 INFO L87 Difference]: Start difference. First operand 40022 states and 61063 transitions. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 2 states have call successors, (95), 2 states have call predecessors, (95), 2 states have return successors, (93), 2 states have call predecessors, (93), 2 states have call successors, (93) [2022-11-23 13:55:53,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:55:55,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:56:01,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:56:02,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:56:06,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:56:08,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:56:11,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 13:56:12,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:56:14,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:56:15,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:56:21,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:56:23,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:56:26,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:56:28,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 13:56:30,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:56:33,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:56:33,582 INFO L93 Difference]: Finished difference Result 80036 states and 122116 transitions. [2022-11-23 13:56:33,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:56:33,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 2 states have call successors, (95), 2 states have call predecessors, (95), 2 states have return successors, (93), 2 states have call predecessors, (93), 2 states have call successors, (93) Word has length 656 [2022-11-23 13:56:33,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:56:33,780 INFO L225 Difference]: With dead ends: 80036 [2022-11-23 13:56:33,780 INFO L226 Difference]: Without dead ends: 40022 [2022-11-23 13:56:33,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 660 GetRequests, 656 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:56:33,970 INFO L413 NwaCegarLoop]: 4555 mSDtfsCounter, 62 mSDsluCounter, 4479 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 2 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 9034 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.8s IncrementalHoareTripleChecker+Time [2022-11-23 13:56:33,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 9034 Invalid, 935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 924 Invalid, 9 Unknown, 0 Unchecked, 39.8s Time] [2022-11-23 13:56:34,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40022 states. [2022-11-23 13:56:36,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40022 to 40022. [2022-11-23 13:56:36,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40022 states, 24468 states have (on average 1.4131518718325977) internal successors, (34577), 26507 states have internal predecessors, (34577), 13156 states have call successors, (13156), 2382 states have call predecessors, (13156), 2397 states have return successors, (13322), 12351 states have call predecessors, (13322), 13155 states have call successors, (13322) [2022-11-23 13:56:36,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40022 states to 40022 states and 61055 transitions. [2022-11-23 13:56:37,002 INFO L78 Accepts]: Start accepts. Automaton has 40022 states and 61055 transitions. Word has length 656 [2022-11-23 13:56:37,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:56:37,003 INFO L495 AbstractCegarLoop]: Abstraction has 40022 states and 61055 transitions. [2022-11-23 13:56:37,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 2 states have call successors, (95), 2 states have call predecessors, (95), 2 states have return successors, (93), 2 states have call predecessors, (93), 2 states have call successors, (93) [2022-11-23 13:56:37,003 INFO L276 IsEmpty]: Start isEmpty. Operand 40022 states and 61055 transitions. [2022-11-23 13:56:37,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 680 [2022-11-23 13:56:37,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:56:37,499 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 23, 8, 8, 8, 8, 8, 8, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:56:37,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 13:56:37,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:56:37,723 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:56:37,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:56:37,724 INFO L85 PathProgramCache]: Analyzing trace with hash -190502641, now seen corresponding path program 1 times [2022-11-23 13:56:37,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:56:37,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696432577] [2022-11-23 13:56:37,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:56:37,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:56:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:56:42,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2070 trivial. 0 not checked. [2022-11-23 13:56:42,118 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:56:42,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696432577] [2022-11-23 13:56:42,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696432577] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:56:42,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993285468] [2022-11-23 13:56:42,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:56:42,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:56:42,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:56:42,121 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:56:42,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 13:56:51,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:56:51,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 23361 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 13:56:51,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:56:56,182 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 367 proven. 0 refuted. 0 times theorem prover too weak. 1713 trivial. 0 not checked. [2022-11-23 13:56:56,182 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:56:56,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993285468] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:56:56,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 13:56:56,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-23 13:56:56,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442709119] [2022-11-23 13:56:56,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:56:56,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:56:56,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:56:56,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:56:56,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:56:56,187 INFO L87 Difference]: Start difference. First operand 40022 states and 61055 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 2 states have internal predecessors, (268), 2 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2022-11-23 13:56:58,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:57:01,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:57:04,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:57:07,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:57:10,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 13:57:12,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:57:13,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:57:15,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:57:21,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:57:24,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:57:26,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:57:28,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:57:31,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 13:57:33,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:57:35,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:57:37,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:57:37,481 INFO L93 Difference]: Finished difference Result 100310 states and 152976 transitions. [2022-11-23 13:57:37,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:57:37,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 2 states have internal predecessors, (268), 2 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) Word has length 679 [2022-11-23 13:57:37,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:57:37,862 INFO L225 Difference]: With dead ends: 100310 [2022-11-23 13:57:37,862 INFO L226 Difference]: Without dead ends: 60296 [2022-11-23 13:57:37,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 683 GetRequests, 679 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:57:37,986 INFO L413 NwaCegarLoop]: 5689 mSDtfsCounter, 4639 mSDsluCounter, 4549 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 0 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4648 SdHoareTripleChecker+Valid, 10238 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:57:37,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4648 Valid, 10238 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 939 Invalid, 11 Unknown, 0 Unchecked, 39.0s Time] [2022-11-23 13:57:38,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60296 states. [2022-11-23 13:57:40,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60296 to 60288. [2022-11-23 13:57:40,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60288 states, 36839 states have (on average 1.4120633024783518) internal successors, (52019), 39898 states have internal predecessors, (52019), 19836 states have call successors, (19836), 3589 states have call predecessors, (19836), 3612 states have return successors, (20068), 18629 states have call predecessors, (20068), 19835 states have call successors, (20068) [2022-11-23 13:57:41,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60288 states to 60288 states and 91923 transitions. [2022-11-23 13:57:41,208 INFO L78 Accepts]: Start accepts. Automaton has 60288 states and 91923 transitions. Word has length 679 [2022-11-23 13:57:41,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:57:41,209 INFO L495 AbstractCegarLoop]: Abstraction has 60288 states and 91923 transitions. [2022-11-23 13:57:41,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 2 states have internal predecessors, (268), 2 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2022-11-23 13:57:41,210 INFO L276 IsEmpty]: Start isEmpty. Operand 60288 states and 91923 transitions. [2022-11-23 13:57:41,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 682 [2022-11-23 13:57:41,651 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:57:41,651 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 23, 8, 8, 8, 8, 8, 8, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:57:41,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 13:57:41,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:57:41,866 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:57:41,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:57:41,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1195241237, now seen corresponding path program 1 times [2022-11-23 13:57:41,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:57:41,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705523303] [2022-11-23 13:57:41,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:57:41,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:57:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:57:45,695 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2070 trivial. 0 not checked. [2022-11-23 13:57:45,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:57:45,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705523303] [2022-11-23 13:57:45,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705523303] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:57:45,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903174691] [2022-11-23 13:57:45,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:57:45,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:57:45,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:57:45,699 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:57:45,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 13:57:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:57:55,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 23403 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 13:57:55,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:58:00,667 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 354 proven. 0 refuted. 0 times theorem prover too weak. 1726 trivial. 0 not checked. [2022-11-23 13:58:00,668 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:58:00,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903174691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:58:00,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 13:58:00,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-23 13:58:00,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192941569] [2022-11-23 13:58:00,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:58:00,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:58:00,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:58:00,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:58:00,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:58:00,671 INFO L87 Difference]: Start difference. First operand 60288 states and 91923 transitions. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 2 states have internal predecessors, (266), 2 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2022-11-23 13:58:02,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:58:06,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:58:08,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:58:11,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:58:14,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 13:58:17,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:58:19,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:58:20,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:58:27,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:58:30,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:58:34,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 13:58:35,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:58:37,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:58:41,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:58:42,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:58:42,465 INFO L93 Difference]: Finished difference Result 160156 states and 244889 transitions. [2022-11-23 13:58:42,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:58:42,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 2 states have internal predecessors, (266), 2 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) Word has length 681 [2022-11-23 13:58:42,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:58:43,202 INFO L225 Difference]: With dead ends: 160156 [2022-11-23 13:58:43,202 INFO L226 Difference]: Without dead ends: 99876 [2022-11-23 13:58:43,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 685 GetRequests, 681 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:58:43,621 INFO L413 NwaCegarLoop]: 5648 mSDtfsCounter, 4580 mSDsluCounter, 4520 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 13 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4584 SdHoareTripleChecker+Valid, 10168 SdHoareTripleChecker+Invalid, 972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.8s IncrementalHoareTripleChecker+Time [2022-11-23 13:58:43,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4584 Valid, 10168 Invalid, 972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 949 Invalid, 10 Unknown, 0 Unchecked, 37.8s Time] [2022-11-23 13:58:43,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99876 states. [2022-11-23 13:58:48,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99876 to 99872. [2022-11-23 13:58:48,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99872 states, 61109 states have (on average 1.4106760051710878) internal successors, (86205), 66106 states have internal predecessors, (86205), 32755 states have call successors, (32755), 5968 states have call predecessors, (32755), 6007 states have return successors, (33380), 30824 states have call predecessors, (33380), 32754 states have call successors, (33380) [2022-11-23 13:58:49,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99872 states to 99872 states and 152340 transitions. [2022-11-23 13:58:49,521 INFO L78 Accepts]: Start accepts. Automaton has 99872 states and 152340 transitions. Word has length 681 [2022-11-23 13:58:49,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:58:49,522 INFO L495 AbstractCegarLoop]: Abstraction has 99872 states and 152340 transitions. [2022-11-23 13:58:49,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 2 states have internal predecessors, (266), 2 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2022-11-23 13:58:49,523 INFO L276 IsEmpty]: Start isEmpty. Operand 99872 states and 152340 transitions. [2022-11-23 13:58:49,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686 [2022-11-23 13:58:49,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:58:49,760 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 23, 8, 8, 8, 8, 8, 8, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:58:49,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 13:58:49,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:58:49,961 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:58:49,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:58:49,962 INFO L85 PathProgramCache]: Analyzing trace with hash 485997288, now seen corresponding path program 1 times [2022-11-23 13:58:49,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:58:49,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476676655] [2022-11-23 13:58:49,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:58:49,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:58:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:58:51,778 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:58:51,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476676655] [2022-11-23 13:58:51,779 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-23 13:58:51,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221483139] [2022-11-23 13:58:51,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:58:51,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:58:51,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:58:51,780 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:58:51,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8838fc-fe17-4807-b42e-6e092f34be9e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process