./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.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_292d1c43-b0e9-475c-9ceb-571811889299/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292d1c43-b0e9-475c-9ceb-571811889299/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_292d1c43-b0e9-475c-9ceb-571811889299/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292d1c43-b0e9-475c-9ceb-571811889299/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292d1c43-b0e9-475c-9ceb-571811889299/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_292d1c43-b0e9-475c-9ceb-571811889299/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 5402abc3421e66b1eb1ff4aae98a8f753c1d0c37db1cbdc24eb3404edec561ce --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:02:39,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:02:39,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:02:39,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:02:39,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:02:39,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:02:39,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:02:39,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:02:39,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:02:39,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:02:39,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:02:39,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:02:39,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:02:39,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:02:39,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:02:39,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:02:39,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:02:39,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:02:39,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:02:39,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:02:39,668 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:02:39,670 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:02:39,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:02:39,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:02:39,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:02:39,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:02:39,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:02:39,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:02:39,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:02:39,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:02:39,687 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:02:39,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:02:39,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:02:39,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:02:39,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:02:39,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:02:39,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:02:39,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:02:39,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:02:39,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:02:39,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:02:39,698 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292d1c43-b0e9-475c-9ceb-571811889299/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 15:02:39,736 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:02:39,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:02:39,737 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:02:39,737 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:02:39,738 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:02:39,738 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:02:39,738 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:02:39,739 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:02:39,739 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:02:39,739 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:02:39,740 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:02:39,740 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:02:39,740 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:02:39,741 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:02:39,741 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:02:39,741 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:02:39,741 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:02:39,741 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:02:39,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:02:39,742 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:02:39,742 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:02:39,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:02:39,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:02:39,743 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:02:39,743 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:02:39,743 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:02:39,744 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:02:39,744 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:02:39,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:02:39,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:02:39,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:02:39,745 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:02:39,745 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:02:39,746 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:02:39,746 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:02:39,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:02:39,746 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:02:39,746 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:02:39,747 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_292d1c43-b0e9-475c-9ceb-571811889299/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292d1c43-b0e9-475c-9ceb-571811889299/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5402abc3421e66b1eb1ff4aae98a8f753c1d0c37db1cbdc24eb3404edec561ce [2022-11-23 15:02:40,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:02:40,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:02:40,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:02:40,087 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:02:40,088 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:02:40,089 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292d1c43-b0e9-475c-9ceb-571811889299/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i [2022-11-23 15:02:43,289 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:02:43,997 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:02:43,997 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292d1c43-b0e9-475c-9ceb-571811889299/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i [2022-11-23 15:02:44,060 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292d1c43-b0e9-475c-9ceb-571811889299/bin/utaipan-Q6hlc19bkW/data/1244f0580/d76a54cc97c04eb3901b95f18c18bac8/FLAG7bfe40579 [2022-11-23 15:02:44,077 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292d1c43-b0e9-475c-9ceb-571811889299/bin/utaipan-Q6hlc19bkW/data/1244f0580/d76a54cc97c04eb3901b95f18c18bac8 [2022-11-23 15:02:44,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:02:44,081 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:02:44,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:02:44,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:02:44,088 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:02:44,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:02:44" (1/1) ... [2022-11-23 15:02:44,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5328622b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:44, skipping insertion in model container [2022-11-23 15:02:44,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:02:44" (1/1) ... [2022-11-23 15:02:44,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:02:44,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:02:48,363 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_292d1c43-b0e9-475c-9ceb-571811889299/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i[510260,510273] [2022-11-23 15:02:48,368 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_292d1c43-b0e9-475c-9ceb-571811889299/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i[510405,510418] [2022-11-23 15:02:48,395 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:02:48,465 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:02:49,353 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_292d1c43-b0e9-475c-9ceb-571811889299/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i[510260,510273] [2022-11-23 15:02:49,354 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_292d1c43-b0e9-475c-9ceb-571811889299/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i[510405,510418] [2022-11-23 15:02:49,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:02:49,585 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:02:49,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:49 WrapperNode [2022-11-23 15:02:49,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:02:49,587 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:02:49,587 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:02:49,587 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:02:49,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:49" (1/1) ... [2022-11-23 15:02:49,794 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:49" (1/1) ... [2022-11-23 15:02:50,343 INFO L138 Inliner]: procedures = 486, calls = 6649, calls flagged for inlining = 236, calls inlined = 219, statements flattened = 12133 [2022-11-23 15:02:50,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:02:50,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:02:50,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:02:50,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:02:50,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:49" (1/1) ... [2022-11-23 15:02:50,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:49" (1/1) ... [2022-11-23 15:02:50,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:49" (1/1) ... [2022-11-23 15:02:50,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:49" (1/1) ... [2022-11-23 15:02:51,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:49" (1/1) ... [2022-11-23 15:02:51,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:49" (1/1) ... [2022-11-23 15:02:51,556 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:49" (1/1) ... [2022-11-23 15:02:51,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:49" (1/1) ... [2022-11-23 15:02:51,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:02:51,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:02:51,691 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:02:51,691 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:02:51,692 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:49" (1/1) ... [2022-11-23 15:02:51,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:02:51,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292d1c43-b0e9-475c-9ceb-571811889299/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:02:51,732 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292d1c43-b0e9-475c-9ceb-571811889299/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:02:51,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292d1c43-b0e9-475c-9ceb-571811889299/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:02:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_streamoff [2022-11-23 15:02:51,780 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_streamoff [2022-11-23 15:02:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure video_open [2022-11-23 15:02:51,781 INFO L138 BoogieDeclarations]: Found implementation of procedure video_open [2022-11-23 15:02:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure SAA7146_IER_DISABLE___0 [2022-11-23 15:02:51,781 INFO L138 BoogieDeclarations]: Found implementation of procedure SAA7146_IER_DISABLE___0 [2022-11-23 15:02:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_reqbufs [2022-11-23 15:02:51,782 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_reqbufs [2022-11-23 15:02:51,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 15:02:51,782 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 15:02:51,782 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_fmt_vid_cap [2022-11-23 15:02:51,782 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_fmt_vid_cap [2022-11-23 15:02:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 15:02:51,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 15:02:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_enum_fmt_vid_cap [2022-11-23 15:02:51,783 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_enum_fmt_vid_cap [2022-11-23 15:02:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_reqbufs [2022-11-23 15:02:51,784 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_reqbufs [2022-11-23 15:02:51,784 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_set_window [2022-11-23 15:02:51,784 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_set_window [2022-11-23 15:02:51,784 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-23 15:02:51,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-23 15:02:51,785 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_res_get [2022-11-23 15:02:51,786 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_res_get [2022-11-23 15:02:51,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2022-11-23 15:02:51,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2022-11-23 15:02:51,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_64 [2022-11-23 15:02:51,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_64 [2022-11-23 15:02:51,788 INFO L130 BoogieDeclarations]: Found specification of procedure video_end [2022-11-23 15:02:51,788 INFO L138 BoogieDeclarations]: Found implementation of procedure video_end [2022-11-23 15:02:51,788 INFO L130 BoogieDeclarations]: Found specification of procedure arch_spin_is_locked [2022-11-23 15:02:51,788 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_spin_is_locked [2022-11-23 15:02:51,789 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_dma [2022-11-23 15:02:51,789 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_dma [2022-11-23 15:02:51,789 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fmt_vid_cap [2022-11-23 15:02:51,789 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fmt_vid_cap [2022-11-23 15:02:51,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_saa7146_vv_cleanup_module_9_2 [2022-11-23 15:02:51,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_saa7146_vv_cleanup_module_9_2 [2022-11-23 15:02:51,790 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_buffer_queue [2022-11-23 15:02:51,790 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_buffer_queue [2022-11-23 15:02:51,790 INFO L130 BoogieDeclarations]: Found specification of procedure video_close [2022-11-23 15:02:51,790 INFO L138 BoogieDeclarations]: Found implementation of procedure video_close [2022-11-23 15:02:51,791 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_open [2022-11-23 15:02:51,791 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_open [2022-11-23 15:02:51,791 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_std [2022-11-23 15:02:51,791 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_std [2022-11-23 15:02:51,791 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_pgtable_alloc [2022-11-23 15:02:51,793 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_pgtable_alloc [2022-11-23 15:02:51,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-23 15:02:51,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-23 15:02:51,793 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2022-11-23 15:02:51,793 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2022-11-23 15:02:51,794 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-23 15:02:51,794 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-23 15:02:51,794 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_irq_done [2022-11-23 15:02:51,794 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_irq_done [2022-11-23 15:02:51,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2022-11-23 15:02:51,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2022-11-23 15:02:51,795 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2022-11-23 15:02:51,795 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2022-11-23 15:02:51,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 15:02:51,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 15:02:51,796 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querybuf [2022-11-23 15:02:51,796 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querybuf [2022-11-23 15:02:51,796 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 15:02:51,796 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 15:02:51,796 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2022-11-23 15:02:51,797 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2022-11-23 15:02:51,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:02:51,798 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fmt_vid_overlay [2022-11-23 15:02:51,798 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fmt_vid_overlay [2022-11-23 15:02:51,799 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_dqbuf [2022-11-23 15:02:51,799 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_dqbuf [2022-11-23 15:02:51,799 INFO L130 BoogieDeclarations]: Found specification of procedure video_irq_done [2022-11-23 15:02:51,800 INFO L138 BoogieDeclarations]: Found implementation of procedure video_irq_done [2022-11-23 15:02:51,800 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-23 15:02:51,800 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-23 15:02:51,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_slock_of_saa7146_dev [2022-11-23 15:02:51,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_slock_of_saa7146_dev [2022-11-23 15:02:51,801 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_fmt_vid_overlay [2022-11-23 15:02:51,802 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_fmt_vid_overlay [2022-11-23 15:02:51,802 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_try_fmt_vid_cap [2022-11-23 15:02:51,802 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_try_fmt_vid_cap [2022-11-23 15:02:51,802 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-23 15:02:51,802 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-23 15:02:51,803 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-23 15:02:51,803 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-23 15:02:51,803 INFO L130 BoogieDeclarations]: Found specification of procedure sort_and_eliminate [2022-11-23 15:02:51,803 INFO L138 BoogieDeclarations]: Found implementation of procedure sort_and_eliminate [2022-11-23 15:02:51,804 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2022-11-23 15:02:51,805 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2022-11-23 15:02:51,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 15:02:51,805 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_qbuf [2022-11-23 15:02:51,805 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_qbuf [2022-11-23 15:02:51,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-23 15:02:51,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-23 15:02:51,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:02:51,806 INFO L130 BoogieDeclarations]: Found specification of procedure fops_read [2022-11-23 15:02:51,807 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_read [2022-11-23 15:02:51,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-23 15:02:51,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-23 15:02:51,807 INFO L130 BoogieDeclarations]: Found specification of procedure release_all_pagetables [2022-11-23 15:02:51,807 INFO L138 BoogieDeclarations]: Found implementation of procedure release_all_pagetables [2022-11-23 15:02:51,807 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_buffer_finish [2022-11-23 15:02:51,808 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_buffer_finish [2022-11-23 15:02:51,808 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_set_output_format [2022-11-23 15:02:51,808 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_set_output_format [2022-11-23 15:02:51,809 INFO L130 BoogieDeclarations]: Found specification of procedure video_read [2022-11-23 15:02:51,810 INFO L138 BoogieDeclarations]: Found implementation of procedure video_read [2022-11-23 15:02:51,813 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-23 15:02:51,814 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-23 15:02:51,815 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_stop [2022-11-23 15:02:51,815 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_stop [2022-11-23 15:02:51,816 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_res_free [2022-11-23 15:02:51,816 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_res_free [2022-11-23 15:02:51,817 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2022-11-23 15:02:51,818 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2022-11-23 15:02:51,818 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_fbuf [2022-11-23 15:02:51,824 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_fbuf [2022-11-23 15:02:51,824 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_pgtable_free [2022-11-23 15:02:51,824 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_pgtable_free [2022-11-23 15:02:51,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:02:51,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-23 15:02:51,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-23 15:02:51,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-23 15:02:51,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-23 15:02:51,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-23 15:02:51,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-23 15:02:51,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-23 15:02:51,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-23 15:02:51,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-23 15:02:51,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-23 15:02:51,826 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_queue_sg_init [2022-11-23 15:02:51,827 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_queue_sg_init [2022-11-23 15:02:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_pgtable_build_single [2022-11-23 15:02:51,827 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_pgtable_build_single [2022-11-23 15:02:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:02:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_s_ctrl [2022-11-23 15:02:51,827 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_s_ctrl [2022-11-23 15:02:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 15:02:51,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 15:02:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:02:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 15:02:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 15:02:51,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 15:02:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-23 15:02:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-23 15:02:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_queue [2022-11-23 15:02:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_queue [2022-11-23 15:02:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-23 15:02:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-23 15:02:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_qbuf [2022-11-23 15:02:51,830 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_qbuf [2022-11-23 15:02:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-23 15:02:51,830 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-23 15:02:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_streamon [2022-11-23 15:02:51,831 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_streamon [2022-11-23 15:02:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-23 15:02:51,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-23 15:02:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2022-11-23 15:02:51,831 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2022-11-23 15:02:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure video_init [2022-11-23 15:02:51,831 INFO L138 BoogieDeclarations]: Found implementation of procedure video_init [2022-11-23 15:02:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_try_fmt_vid_overlay [2022-11-23 15:02:51,832 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_try_fmt_vid_overlay [2022-11-23 15:02:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fmt_vbi_cap [2022-11-23 15:02:51,832 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fmt_vbi_cap [2022-11-23 15:02:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-23 15:02:51,832 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-23 15:02:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-23 15:02:51,833 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-23 15:02:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2022-11-23 15:02:51,833 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2022-11-23 15:02:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure fops_mmap [2022-11-23 15:02:51,833 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_mmap [2022-11-23 15:02:51,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:02:51,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:02:51,834 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_disable_clipping [2022-11-23 15:02:51,834 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_disable_clipping [2022-11-23 15:02:51,834 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_parm [2022-11-23 15:02:51,835 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_parm [2022-11-23 15:02:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 15:02:51,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 15:02:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_stop_preview [2022-11-23 15:02:51,835 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_stop_preview [2022-11-23 15:02:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-23 15:02:51,836 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-23 15:02:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_int_slock_of_saa7146_dev [2022-11-23 15:02:51,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_int_slock_of_saa7146_dev [2022-11-23 15:02:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_slock_of_saa7146_dev [2022-11-23 15:02:51,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_slock_of_saa7146_dev [2022-11-23 15:02:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-23 15:02:51,836 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-23 15:02:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure video_begin [2022-11-23 15:02:51,837 INFO L138 BoogieDeclarations]: Found implementation of procedure video_begin [2022-11-23 15:02:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-23 15:02:51,837 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-23 15:02:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure fops_open [2022-11-23 15:02:51,837 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_open [2022-11-23 15:02:51,838 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_init [2022-11-23 15:02:51,838 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_init [2022-11-23 15:02:51,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 15:02:51,838 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 15:02:51,838 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fbuf [2022-11-23 15:02:51,838 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fbuf [2022-11-23 15:02:51,839 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-23 15:02:51,839 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-23 15:02:51,839 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-23 15:02:51,839 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-23 15:02:51,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:02:51,839 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-23 15:02:51,840 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-23 15:02:51,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:02:51,840 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_release [2022-11-23 15:02:51,840 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_release [2022-11-23 15:02:51,840 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-23 15:02:51,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-23 15:02:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 15:02:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2022-11-23 15:02:51,841 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2022-11-23 15:02:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-23 15:02:51,841 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-23 15:02:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-23 15:02:51,841 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-23 15:02:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-23 15:02:51,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-23 15:02:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-23 15:02:51,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-23 15:02:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_dqbuf [2022-11-23 15:02:51,842 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_dqbuf [2022-11-23 15:02:51,843 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-23 15:02:51,843 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-23 15:02:51,843 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querycap [2022-11-23 15:02:51,843 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querycap [2022-11-23 15:02:51,843 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_start_preview [2022-11-23 15:02:51,844 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_start_preview [2022-11-23 15:02:51,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_70 [2022-11-23 15:02:51,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_70 [2022-11-23 15:02:51,848 INFO L130 BoogieDeclarations]: Found specification of procedure fops_release [2022-11-23 15:02:51,849 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_release [2022-11-23 15:02:51,849 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_querybuf [2022-11-23 15:02:51,849 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_querybuf [2022-11-23 15:02:51,849 INFO L130 BoogieDeclarations]: Found specification of procedure SAA7146_IER_ENABLE___0 [2022-11-23 15:02:51,849 INFO L138 BoogieDeclarations]: Found implementation of procedure SAA7146_IER_ENABLE___0 [2022-11-23 15:02:51,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_71 [2022-11-23 15:02:51,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_71 [2022-11-23 15:02:51,851 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 15:02:51,852 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 15:02:51,852 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_write_out_dma [2022-11-23 15:02:51,852 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_write_out_dma [2022-11-23 15:02:51,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:02:51,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 15:02:51,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 15:02:51,853 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_format_by_fourcc [2022-11-23 15:02:51,853 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_format_by_fourcc [2022-11-23 15:02:51,853 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_dma_free [2022-11-23 15:02:51,853 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_dma_free [2022-11-23 15:02:51,853 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_buffer_next [2022-11-23 15:02:51,853 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_buffer_next [2022-11-23 15:02:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure program_capture_engine [2022-11-23 15:02:51,854 INFO L138 BoogieDeclarations]: Found implementation of procedure program_capture_engine [2022-11-23 15:02:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_close [2022-11-23 15:02:51,854 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_close [2022-11-23 15:02:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-23 15:02:51,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-23 15:02:51,855 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_setup [2022-11-23 15:02:51,855 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_setup [2022-11-23 15:02:51,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-23 15:02:51,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-23 15:02:51,855 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-23 15:02:51,855 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-23 15:02:51,855 INFO L130 BoogieDeclarations]: Found specification of procedure fops_write [2022-11-23 15:02:51,856 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_write [2022-11-23 15:02:51,856 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_read [2022-11-23 15:02:51,856 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_read [2022-11-23 15:02:51,856 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-23 15:02:51,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-23 15:02:51,856 INFO L130 BoogieDeclarations]: Found specification of procedure fops_poll [2022-11-23 15:02:51,857 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_poll [2022-11-23 15:02:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-23 15:02:51,857 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-23 15:02:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:02:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-23 15:02:51,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-23 15:02:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-23 15:02:51,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-23 15:02:53,490 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:02:53,494 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:02:53,794 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 15:04:06,692 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-23 15:04:06,888 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:04:10,744 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:04:10,745 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-23 15:04:10,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:04:10 BoogieIcfgContainer [2022-11-23 15:04:10,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:04:10,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:04:10,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:04:10,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:04:10,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:02:44" (1/3) ... [2022-11-23 15:04:10,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14294983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:04:10, skipping insertion in model container [2022-11-23 15:04:10,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:49" (2/3) ... [2022-11-23 15:04:10,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14294983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:04:10, skipping insertion in model container [2022-11-23 15:04:10,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:04:10" (3/3) ... [2022-11-23 15:04:10,764 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i [2022-11-23 15:04:10,787 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:04:10,787 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:04:10,906 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:04:10,917 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;@c1a21fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:04:10,917 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:04:10,933 INFO L276 IsEmpty]: Start isEmpty. Operand has 2517 states, 1588 states have (on average 1.3280856423173804) internal successors, (2109), 1603 states have internal predecessors, (2109), 793 states have call successors, (793), 136 states have call predecessors, (793), 135 states have return successors, (784), 777 states have call predecessors, (784), 784 states have call successors, (784) [2022-11-23 15:04:11,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2022-11-23 15:04:11,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:04:11,017 INFO L195 NwaCegarLoop]: trace histogram [46, 45, 45, 45, 45, 45, 45, 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] [2022-11-23 15:04:11,018 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:04:11,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:04:11,026 INFO L85 PathProgramCache]: Analyzing trace with hash 785062463, now seen corresponding path program 1 times [2022-11-23 15:04:11,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:04:11,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880292372] [2022-11-23 15:04:11,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:04:11,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:04:11,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:04:12,668 INFO L134 CoverageAnalysis]: Checked inductivity of 8014 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8014 trivial. 0 not checked. [2022-11-23 15:04:12,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:04:12,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880292372] [2022-11-23 15:04:12,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880292372] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:04:12,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:04:12,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:04:12,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549048756] [2022-11-23 15:04:12,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:04:12,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:04:12,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:04:12,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:04:12,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:04:12,748 INFO L87 Difference]: Start difference. First operand has 2517 states, 1588 states have (on average 1.3280856423173804) internal successors, (2109), 1603 states have internal predecessors, (2109), 793 states have call successors, (793), 136 states have call predecessors, (793), 135 states have return successors, (784), 777 states have call predecessors, (784), 784 states have call successors, (784) Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-23 15:04:15,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:18,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:23,903 WARN L539 Checker$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 15:04:27,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:04:31,903 WARN L539 Checker$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 15:04:34,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:36,427 WARN L539 Checker$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 15:04:37,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:04:39,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:41,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:04:43,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:04:45,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:04:47,680 WARN L539 Checker$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 15:04:49,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:51,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:04:51,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:04:51,835 INFO L93 Difference]: Finished difference Result 7176 states and 10585 transitions. [2022-11-23 15:04:51,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:04:51,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) Word has length 510 [2022-11-23 15:04:51,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:04:51,919 INFO L225 Difference]: With dead ends: 7176 [2022-11-23 15:04:51,919 INFO L226 Difference]: Without dead ends: 4694 [2022-11-23 15:04:51,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:04:51,953 INFO L413 NwaCegarLoop]: 3825 mSDtfsCounter, 3233 mSDsluCounter, 3107 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 13 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3244 SdHoareTripleChecker+Valid, 6932 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:04:51,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3244 Valid, 6932 Invalid, 1111 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 1087 Invalid, 11 Unknown, 0 Unchecked, 38.5s Time] [2022-11-23 15:04:51,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4694 states. [2022-11-23 15:04:52,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4694 to 4686. [2022-11-23 15:04:52,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4686 states, 3002 states have (on average 1.3251165889407062) internal successors, (3978), 3031 states have internal predecessors, (3978), 1420 states have call successors, (1420), 263 states have call predecessors, (1420), 263 states have return successors, (1430), 1404 states have call predecessors, (1430), 1420 states have call successors, (1430) [2022-11-23 15:04:52,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4686 states to 4686 states and 6828 transitions. [2022-11-23 15:04:52,405 INFO L78 Accepts]: Start accepts. Automaton has 4686 states and 6828 transitions. Word has length 510 [2022-11-23 15:04:52,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:04:52,410 INFO L495 AbstractCegarLoop]: Abstraction has 4686 states and 6828 transitions. [2022-11-23 15:04:52,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-23 15:04:52,410 INFO L276 IsEmpty]: Start isEmpty. Operand 4686 states and 6828 transitions. [2022-11-23 15:04:52,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2022-11-23 15:04:52,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:04:52,442 INFO L195 NwaCegarLoop]: trace histogram [46, 45, 45, 45, 45, 45, 45, 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] [2022-11-23 15:04:52,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:04:52,442 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:04:52,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:04:52,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1801775689, now seen corresponding path program 1 times [2022-11-23 15:04:52,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:04:52,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289416902] [2022-11-23 15:04:52,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:04:52,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:04:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:04:53,272 INFO L134 CoverageAnalysis]: Checked inductivity of 8014 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8014 trivial. 0 not checked. [2022-11-23 15:04:53,272 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:04:53,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289416902] [2022-11-23 15:04:53,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289416902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:04:53,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:04:53,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:04:53,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364912383] [2022-11-23 15:04:53,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:04:53,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:04:53,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:04:53,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:04:53,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:04:53,278 INFO L87 Difference]: Start difference. First operand 4686 states and 6828 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-23 15:04:55,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:57,160 WARN L539 Checker$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 15:05:00,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:05:02,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:05:06,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:05:07,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:05:13,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:05:15,960 WARN L539 Checker$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 15:05:18,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:05:20,153 WARN L539 Checker$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 15:05:22,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:05:24,232 WARN L539 Checker$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 15:05:25,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:05:27,557 WARN L539 Checker$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 15:05:29,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:05:31,602 WARN L539 Checker$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 15:05:31,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:05:31,667 INFO L93 Difference]: Finished difference Result 13374 states and 19465 transitions. [2022-11-23 15:05:31,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:05:31,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) Word has length 509 [2022-11-23 15:05:31,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:05:31,737 INFO L225 Difference]: With dead ends: 13374 [2022-11-23 15:05:31,737 INFO L226 Difference]: Without dead ends: 8775 [2022-11-23 15:05:31,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:05:31,763 INFO L413 NwaCegarLoop]: 3926 mSDtfsCounter, 3142 mSDsluCounter, 3054 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 13 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3154 SdHoareTripleChecker+Valid, 6980 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:05:31,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3154 Valid, 6980 Invalid, 1161 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 1137 Invalid, 11 Unknown, 0 Unchecked, 37.7s Time] [2022-11-23 15:05:31,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8775 states. [2022-11-23 15:05:32,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8775 to 8762. [2022-11-23 15:05:32,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8762 states, 5649 states have (on average 1.3280226588776776) internal successors, (7502), 5709 states have internal predecessors, (7502), 2602 states have call successors, (2602), 510 states have call predecessors, (2602), 510 states have return successors, (2631), 2566 states have call predecessors, (2631), 2602 states have call successors, (2631) [2022-11-23 15:05:32,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8762 states to 8762 states and 12735 transitions. [2022-11-23 15:05:32,357 INFO L78 Accepts]: Start accepts. Automaton has 8762 states and 12735 transitions. Word has length 509 [2022-11-23 15:05:32,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:05:32,359 INFO L495 AbstractCegarLoop]: Abstraction has 8762 states and 12735 transitions. [2022-11-23 15:05:32,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-23 15:05:32,359 INFO L276 IsEmpty]: Start isEmpty. Operand 8762 states and 12735 transitions. [2022-11-23 15:05:32,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2022-11-23 15:05:32,386 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:05:32,386 INFO L195 NwaCegarLoop]: trace histogram [49, 48, 48, 48, 48, 48, 48, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:05:32,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:05:32,387 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:05:32,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:05:32,387 INFO L85 PathProgramCache]: Analyzing trace with hash -512970920, now seen corresponding path program 1 times [2022-11-23 15:05:32,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:05:32,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866376797] [2022-11-23 15:05:32,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:05:32,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:05:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:05:33,236 INFO L134 CoverageAnalysis]: Checked inductivity of 9160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9160 trivial. 0 not checked. [2022-11-23 15:05:33,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:05:33,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866376797] [2022-11-23 15:05:33,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866376797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:05:33,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:05:33,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:05:33,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209756110] [2022-11-23 15:05:33,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:05:33,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:05:33,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:05:33,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:05:33,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:05:33,241 INFO L87 Difference]: Start difference. First operand 8762 states and 12735 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, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-23 15:05:36,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:05:41,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:05:43,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:05:46,146 WARN L539 Checker$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 15:05:50,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:05:52,328 WARN L539 Checker$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 15:05:53,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:05:55,790 WARN L539 Checker$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 15:05:57,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:05:59,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:06:01,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:06:03,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:05,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:06:07,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:06:09,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:06:12,011 WARN L539 Checker$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 15:06:14,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:14,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:06:14,099 INFO L93 Difference]: Finished difference Result 25715 states and 37379 transitions. [2022-11-23 15:06:14,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:06:14,100 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, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 535 [2022-11-23 15:06:14,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:06:14,224 INFO L225 Difference]: With dead ends: 25715 [2022-11-23 15:06:14,224 INFO L226 Difference]: Without dead ends: 17040 [2022-11-23 15:06:14,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:06:14,281 INFO L413 NwaCegarLoop]: 3776 mSDtfsCounter, 3248 mSDsluCounter, 3071 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 13 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3264 SdHoareTripleChecker+Valid, 6847 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:06:14,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3264 Valid, 6847 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1066 Invalid, 12 Unknown, 0 Unchecked, 40.2s Time] [2022-11-23 15:06:14,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17040 states. [2022-11-23 15:06:15,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17040 to 17016. [2022-11-23 15:06:15,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17016 states, 10996 states have (on average 1.328119316114951) internal successors, (14604), 11124 states have internal predecessors, (14604), 5013 states have call successors, (5013), 1006 states have call predecessors, (5013), 1006 states have return successors, (5094), 4933 states have call predecessors, (5094), 5013 states have call successors, (5094) [2022-11-23 15:06:15,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17016 states to 17016 states and 24711 transitions. [2022-11-23 15:06:15,809 INFO L78 Accepts]: Start accepts. Automaton has 17016 states and 24711 transitions. Word has length 535 [2022-11-23 15:06:15,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:06:15,810 INFO L495 AbstractCegarLoop]: Abstraction has 17016 states and 24711 transitions. [2022-11-23 15:06:15,811 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, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-23 15:06:15,811 INFO L276 IsEmpty]: Start isEmpty. Operand 17016 states and 24711 transitions. [2022-11-23 15:06:15,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2022-11-23 15:06:15,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:06:15,873 INFO L195 NwaCegarLoop]: trace histogram [47, 45, 45, 45, 45, 45, 45, 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] [2022-11-23 15:06:15,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:06:15,873 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:06:15,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:06:15,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1919752452, now seen corresponding path program 1 times [2022-11-23 15:06:15,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:06:15,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162160464] [2022-11-23 15:06:15,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:06:15,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:06:16,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:06:16,667 INFO L134 CoverageAnalysis]: Checked inductivity of 8109 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8106 trivial. 0 not checked. [2022-11-23 15:06:16,668 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:06:16,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162160464] [2022-11-23 15:06:16,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162160464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:06:16,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:06:16,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:06:16,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430309646] [2022-11-23 15:06:16,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:06:16,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:06:16,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:06:16,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:06:16,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:06:16,672 INFO L87 Difference]: Start difference. First operand 17016 states and 24711 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, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-23 15:06:19,035 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 15:06:24,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:27,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:06:33,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:06:36,251 WARN L539 Checker$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 15:06:38,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:40,484 WARN L539 Checker$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 15:06:42,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:45,153 WARN L539 Checker$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 15:06:47,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:06:49,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:51,257 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 15:06:51,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:06:51,297 INFO L93 Difference]: Finished difference Result 35781 states and 51876 transitions. [2022-11-23 15:06:51,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:06:51,298 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, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 533 [2022-11-23 15:06:51,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:06:51,507 INFO L225 Difference]: With dead ends: 35781 [2022-11-23 15:06:51,507 INFO L226 Difference]: Without dead ends: 18852 [2022-11-23 15:06:51,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:06:51,577 INFO L413 NwaCegarLoop]: 3677 mSDtfsCounter, 2475 mSDsluCounter, 3064 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 12 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2485 SdHoareTripleChecker+Valid, 6741 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:06:51,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2485 Valid, 6741 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1102 Invalid, 10 Unknown, 0 Unchecked, 33.9s Time] [2022-11-23 15:06:51,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18852 states. [2022-11-23 15:06:52,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18852 to 18841. [2022-11-23 15:06:52,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18841 states, 12189 states have (on average 1.3261137090819592) internal successors, (16164), 12329 states have internal predecessors, (16164), 5509 states have call successors, (5509), 1142 states have call predecessors, (5509), 1142 states have return successors, (5598), 5422 states have call predecessors, (5598), 5509 states have call successors, (5598) [2022-11-23 15:06:52,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18841 states to 18841 states and 27271 transitions. [2022-11-23 15:06:52,944 INFO L78 Accepts]: Start accepts. Automaton has 18841 states and 27271 transitions. Word has length 533 [2022-11-23 15:06:52,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:06:52,945 INFO L495 AbstractCegarLoop]: Abstraction has 18841 states and 27271 transitions. [2022-11-23 15:06:52,945 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, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-23 15:06:52,945 INFO L276 IsEmpty]: Start isEmpty. Operand 18841 states and 27271 transitions. [2022-11-23 15:06:52,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2022-11-23 15:06:52,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:06:52,969 INFO L195 NwaCegarLoop]: trace histogram [49, 48, 48, 48, 48, 48, 48, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:06:52,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:06:52,970 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:06:52,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:06:52,971 INFO L85 PathProgramCache]: Analyzing trace with hash 922715310, now seen corresponding path program 1 times [2022-11-23 15:06:52,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:06:52,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190786153] [2022-11-23 15:06:52,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:06:52,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:06:53,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:06:54,007 INFO L134 CoverageAnalysis]: Checked inductivity of 9160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9160 trivial. 0 not checked. [2022-11-23 15:06:54,008 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:06:54,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190786153] [2022-11-23 15:06:54,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190786153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:06:54,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:06:54,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:06:54,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677358931] [2022-11-23 15:06:54,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:06:54,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:06:54,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:06:54,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:06:54,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:06:54,011 INFO L87 Difference]: Start difference. First operand 18841 states and 27271 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-23 15:06:56,842 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 15:06:59,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:07:01,944 WARN L539 Checker$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 15:07:05,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:07:06,623 WARN L539 Checker$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 15:07:09,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:07:13,022 WARN L539 Checker$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 15:07:16,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:07:18,655 WARN L539 Checker$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 15:07:20,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:07:22,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:07:24,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:07:26,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:07:28,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:07:31,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:07:31,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:07:31,134 INFO L93 Difference]: Finished difference Result 51235 states and 73854 transitions. [2022-11-23 15:07:31,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:07:31,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 561 [2022-11-23 15:07:31,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:07:31,312 INFO L225 Difference]: With dead ends: 51235 [2022-11-23 15:07:31,312 INFO L226 Difference]: Without dead ends: 32481 [2022-11-23 15:07:31,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:07:31,383 INFO L413 NwaCegarLoop]: 3927 mSDtfsCounter, 2914 mSDsluCounter, 3032 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 7 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2924 SdHoareTripleChecker+Valid, 6959 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:07:31,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2924 Valid, 6959 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1126 Invalid, 11 Unknown, 0 Unchecked, 35.9s Time] [2022-11-23 15:07:31,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32481 states. [2022-11-23 15:07:33,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32481 to 32448. [2022-11-23 15:07:33,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32448 states, 20926 states have (on average 1.3189333843066042) internal successors, (27600), 21200 states have internal predecessors, (27600), 9438 states have call successors, (9438), 2083 states have call predecessors, (9438), 2083 states have return successors, (9598), 9261 states have call predecessors, (9598), 9438 states have call successors, (9598) [2022-11-23 15:07:33,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32448 states to 32448 states and 46636 transitions. [2022-11-23 15:07:33,504 INFO L78 Accepts]: Start accepts. Automaton has 32448 states and 46636 transitions. Word has length 561 [2022-11-23 15:07:33,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:07:33,506 INFO L495 AbstractCegarLoop]: Abstraction has 32448 states and 46636 transitions. [2022-11-23 15:07:33,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-23 15:07:33,506 INFO L276 IsEmpty]: Start isEmpty. Operand 32448 states and 46636 transitions. [2022-11-23 15:07:33,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2022-11-23 15:07:33,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:07:33,561 INFO L195 NwaCegarLoop]: trace histogram [49, 45, 45, 45, 45, 45, 45, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:07:33,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:07:33,561 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:07:33,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:07:33,562 INFO L85 PathProgramCache]: Analyzing trace with hash -747485144, now seen corresponding path program 1 times [2022-11-23 15:07:33,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:07:33,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975053151] [2022-11-23 15:07:33,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:33,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:07:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:07:34,263 INFO L134 CoverageAnalysis]: Checked inductivity of 8321 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8314 trivial. 0 not checked. [2022-11-23 15:07:34,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:07:34,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975053151] [2022-11-23 15:07:34,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975053151] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:07:34,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:07:34,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:07:34,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907170846] [2022-11-23 15:07:34,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:07:34,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:07:34,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:07:34,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:07:34,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:07:34,266 INFO L87 Difference]: Start difference. First operand 32448 states and 46636 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-23 15:07:37,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:07:41,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:07:44,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:07:45,499 WARN L539 Checker$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 15:07:48,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:07:50,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:07:52,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:07:55,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:07:57,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:08:00,937 WARN L539 Checker$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 15:08:04,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:08:06,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:08:08,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:08:10,972 WARN L539 Checker$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 15:08:13,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:08:15,237 WARN L539 Checker$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 15:08:17,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:08:19,285 WARN L539 Checker$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 15:08:21,306 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 15:08:21,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:08:21,436 INFO L93 Difference]: Finished difference Result 78285 states and 112564 transitions. [2022-11-23 15:08:21,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:08:21,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 567 [2022-11-23 15:08:21,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:08:21,679 INFO L225 Difference]: With dead ends: 78285 [2022-11-23 15:08:21,679 INFO L226 Difference]: Without dead ends: 46951 [2022-11-23 15:08:21,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:08:21,798 INFO L413 NwaCegarLoop]: 5289 mSDtfsCounter, 3162 mSDsluCounter, 3038 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 9 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3174 SdHoareTripleChecker+Valid, 8327 SdHoareTripleChecker+Invalid, 1467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:08:21,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3174 Valid, 8327 Invalid, 1467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1446 Invalid, 12 Unknown, 0 Unchecked, 45.7s Time] [2022-11-23 15:08:21,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46951 states. [2022-11-23 15:08:24,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46951 to 46933. [2022-11-23 15:08:24,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46933 states, 30312 states have (on average 1.3193784639746635) internal successors, (39993), 30719 states have internal predecessors, (39993), 13580 states have call successors, (13580), 3040 states have call predecessors, (13580), 3040 states have return successors, (13816), 13312 states have call predecessors, (13816), 13580 states have call successors, (13816) [2022-11-23 15:08:24,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46933 states to 46933 states and 67389 transitions. [2022-11-23 15:08:24,412 INFO L78 Accepts]: Start accepts. Automaton has 46933 states and 67389 transitions. Word has length 567 [2022-11-23 15:08:24,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:08:24,413 INFO L495 AbstractCegarLoop]: Abstraction has 46933 states and 67389 transitions. [2022-11-23 15:08:24,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-23 15:08:24,414 INFO L276 IsEmpty]: Start isEmpty. Operand 46933 states and 67389 transitions. [2022-11-23 15:08:24,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2022-11-23 15:08:24,451 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:08:24,451 INFO L195 NwaCegarLoop]: trace histogram [49, 45, 45, 45, 45, 45, 45, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:08:24,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:08:24,452 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:08:24,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:08:24,452 INFO L85 PathProgramCache]: Analyzing trace with hash 228318016, now seen corresponding path program 1 times [2022-11-23 15:08:24,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:08:24,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833904968] [2022-11-23 15:08:24,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:08:24,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:08:24,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:08:25,128 INFO L134 CoverageAnalysis]: Checked inductivity of 8321 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8314 trivial. 0 not checked. [2022-11-23 15:08:25,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:08:25,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833904968] [2022-11-23 15:08:25,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833904968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:08:25,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:08:25,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:08:25,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012859896] [2022-11-23 15:08:25,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:08:25,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:08:25,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:08:25,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:08:25,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:08:25,131 INFO L87 Difference]: Start difference. First operand 46933 states and 67389 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-23 15:08:28,526 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 15:08:31,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:08:35,718 WARN L539 Checker$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 15:08:41,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:08:44,641 WARN L539 Checker$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 15:08:47,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:08:50,205 WARN L539 Checker$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 15:08:52,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:08:54,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:08:57,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:08:59,254 WARN L539 Checker$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 15:09:01,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:09:03,302 WARN L539 Checker$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 15:09:04,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:09:04,361 INFO L93 Difference]: Finished difference Result 113583 states and 163125 transitions. [2022-11-23 15:09:04,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:09:04,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 566 [2022-11-23 15:09:04,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:09:04,715 INFO L225 Difference]: With dead ends: 113583 [2022-11-23 15:09:04,716 INFO L226 Difference]: Without dead ends: 67764 [2022-11-23 15:09:04,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:09:04,876 INFO L413 NwaCegarLoop]: 5438 mSDtfsCounter, 3157 mSDsluCounter, 3037 mSDsCounter, 0 mSdLazyCounter, 1477 mSolverCounterSat, 9 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3169 SdHoareTripleChecker+Valid, 8475 SdHoareTripleChecker+Invalid, 1498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1477 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:09:04,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3169 Valid, 8475 Invalid, 1498 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [9 Valid, 1477 Invalid, 12 Unknown, 0 Unchecked, 36.8s Time] [2022-11-23 15:09:04,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67764 states. [2022-11-23 15:09:07,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67764 to 67741. [2022-11-23 15:09:07,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67741 states, 43824 states have (on average 1.319893209200438) internal successors, (57843), 44425 states have internal predecessors, (57843), 19484 states have call successors, (19484), 4432 states have call predecessors, (19484), 4432 states have return successors, (19829), 19082 states have call predecessors, (19829), 19484 states have call successors, (19829) [2022-11-23 15:09:08,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67741 states to 67741 states and 97156 transitions. [2022-11-23 15:09:08,312 INFO L78 Accepts]: Start accepts. Automaton has 67741 states and 97156 transitions. Word has length 566 [2022-11-23 15:09:08,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:09:08,313 INFO L495 AbstractCegarLoop]: Abstraction has 67741 states and 97156 transitions. [2022-11-23 15:09:08,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-23 15:09:08,313 INFO L276 IsEmpty]: Start isEmpty. Operand 67741 states and 97156 transitions. [2022-11-23 15:09:08,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2022-11-23 15:09:08,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:08,335 INFO L195 NwaCegarLoop]: trace histogram [52, 48, 48, 48, 48, 48, 48, 5, 5, 5, 5, 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] [2022-11-23 15:09:08,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 15:09:08,336 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:09:08,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:08,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1410825047, now seen corresponding path program 1 times [2022-11-23 15:09:08,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:08,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471114405] [2022-11-23 15:09:08,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:08,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:08,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:09,728 INFO L134 CoverageAnalysis]: Checked inductivity of 9484 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9477 trivial. 0 not checked. [2022-11-23 15:09:09,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:09,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471114405] [2022-11-23 15:09:09,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471114405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:09:09,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:09:09,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:09:09,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066746129] [2022-11-23 15:09:09,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:09:09,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:09:09,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:09:09,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:09:09,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:09:09,731 INFO L87 Difference]: Start difference. First operand 67741 states and 97156 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2022-11-23 15:09:12,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:09:15,203 WARN L539 Checker$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 15:09:16,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:09:19,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:09:21,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:09:23,477 WARN L539 Checker$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 15:09:26,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:09:28,383 WARN L539 Checker$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 15:09:30,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:09:33,611 WARN L539 Checker$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 15:09:37,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:09:39,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:09:41,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:09:43,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:09:45,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:09:48,921 WARN L539 Checker$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 15:09:50,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:09:52,440 WARN L539 Checker$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 15:09:54,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:09:56,480 WARN L539 Checker$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 15:09:59,063 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 15:10:00,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:10:00,018 INFO L93 Difference]: Finished difference Result 165824 states and 237929 transitions. [2022-11-23 15:10:00,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:10:00,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) Word has length 591 [2022-11-23 15:10:00,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:10:00,617 INFO L225 Difference]: With dead ends: 165824 [2022-11-23 15:10:00,617 INFO L226 Difference]: Without dead ends: 99197 [2022-11-23 15:10:00,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:10:00,908 INFO L413 NwaCegarLoop]: 5845 mSDtfsCounter, 3239 mSDsluCounter, 3060 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 9 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3251 SdHoareTripleChecker+Valid, 8905 SdHoareTripleChecker+Invalid, 1570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:10:00,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3251 Valid, 8905 Invalid, 1570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1550 Invalid, 11 Unknown, 0 Unchecked, 47.1s Time] [2022-11-23 15:10:01,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99197 states. [2022-11-23 15:10:05,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99197 to 99150. [2022-11-23 15:10:05,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99150 states, 64204 states have (on average 1.3200112142545635) internal successors, (84750), 65109 states have internal predecessors, (84750), 28441 states have call successors, (28441), 6504 states have call predecessors, (28441), 6504 states have return successors, (28924), 27829 states have call predecessors, (28924), 28441 states have call successors, (28924) [2022-11-23 15:10:05,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99150 states to 99150 states and 142115 transitions. [2022-11-23 15:10:05,892 INFO L78 Accepts]: Start accepts. Automaton has 99150 states and 142115 transitions. Word has length 591 [2022-11-23 15:10:05,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:10:05,893 INFO L495 AbstractCegarLoop]: Abstraction has 99150 states and 142115 transitions. [2022-11-23 15:10:05,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2022-11-23 15:10:05,894 INFO L276 IsEmpty]: Start isEmpty. Operand 99150 states and 142115 transitions. [2022-11-23 15:10:06,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 616 [2022-11-23 15:10:06,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:10:06,188 INFO L195 NwaCegarLoop]: trace histogram [52, 48, 48, 48, 48, 48, 48, 5, 5, 5, 5, 3, 3, 3, 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] [2022-11-23 15:10:06,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 15:10:06,188 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:10:06,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:10:06,189 INFO L85 PathProgramCache]: Analyzing trace with hash 409701706, now seen corresponding path program 1 times [2022-11-23 15:10:06,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:10:06,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973460564] [2022-11-23 15:10:06,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:10:06,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:10:06,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:10:07,036 INFO L134 CoverageAnalysis]: Checked inductivity of 9482 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9475 trivial. 0 not checked. [2022-11-23 15:10:07,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:10:07,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973460564] [2022-11-23 15:10:07,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973460564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:10:07,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:10:07,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:10:07,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518802908] [2022-11-23 15:10:07,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:10:07,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:10:07,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:10:07,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:10:07,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:10:07,040 INFO L87 Difference]: Start difference. First operand 99150 states and 142115 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2022-11-23 15:10:10,176 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 15:10:13,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:10:17,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:10:19,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:10:22,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:10:23,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:10:26,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:10:27,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:10:30,027 WARN L539 Checker$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 15:10:32,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:10:36,386 WARN L539 Checker$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 15:10:38,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:10:41,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:10:43,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:10:45,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:10:48,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:10:50,286 WARN L539 Checker$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 15:10:52,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:10:54,331 WARN L539 Checker$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 15:10:56,437 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 15:10:58,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:10:58,883 INFO L93 Difference]: Finished difference Result 240318 states and 344096 transitions. [2022-11-23 15:10:58,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:10:58,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) Word has length 615 [2022-11-23 15:10:58,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:10:59,555 INFO L225 Difference]: With dead ends: 240318 [2022-11-23 15:10:59,556 INFO L226 Difference]: Without dead ends: 142282 [2022-11-23 15:10:59,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:10:59,843 INFO L413 NwaCegarLoop]: 5639 mSDtfsCounter, 2957 mSDsluCounter, 3030 mSDsCounter, 0 mSdLazyCounter, 1515 mSolverCounterSat, 4 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2967 SdHoareTripleChecker+Valid, 8669 SdHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1515 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:10:59,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2967 Valid, 8669 Invalid, 1532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1515 Invalid, 13 Unknown, 0 Unchecked, 47.0s Time] [2022-11-23 15:10:59,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142282 states. [2022-11-23 15:11:05,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142282 to 142191. [2022-11-23 15:11:06,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142191 states, 91970 states have (on average 1.3173317386104164) internal successors, (121155), 93326 states have internal predecessors, (121155), 40691 states have call successors, (40691), 9529 states have call predecessors, (40691), 9529 states have return successors, (41476), 39765 states have call predecessors, (41476), 40691 states have call successors, (41476) [2022-11-23 15:11:07,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142191 states to 142191 states and 203322 transitions. [2022-11-23 15:11:07,057 INFO L78 Accepts]: Start accepts. Automaton has 142191 states and 203322 transitions. Word has length 615 [2022-11-23 15:11:07,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:07,058 INFO L495 AbstractCegarLoop]: Abstraction has 142191 states and 203322 transitions. [2022-11-23 15:11:07,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2022-11-23 15:11:07,059 INFO L276 IsEmpty]: Start isEmpty. Operand 142191 states and 203322 transitions. [2022-11-23 15:11:07,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2022-11-23 15:11:07,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:07,153 INFO L195 NwaCegarLoop]: trace histogram [54, 48, 48, 48, 48, 48, 48, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:11:07,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 15:11:07,154 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:11:07,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:07,155 INFO L85 PathProgramCache]: Analyzing trace with hash 762111840, now seen corresponding path program 1 times [2022-11-23 15:11:07,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:11:07,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944072235] [2022-11-23 15:11:07,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:07,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:11:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:08,580 INFO L134 CoverageAnalysis]: Checked inductivity of 9708 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 9692 trivial. 0 not checked. [2022-11-23 15:11:08,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:11:08,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944072235] [2022-11-23 15:11:08,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944072235] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:11:08,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:11:08,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:11:08,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274178312] [2022-11-23 15:11:08,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:11:08,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:11:08,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:11:08,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:11:08,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:11:08,583 INFO L87 Difference]: Start difference. First operand 142191 states and 203322 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2022-11-23 15:11:11,554 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 15:11:12,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:11:14,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:11:21,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:11:25,593 WARN L539 Checker$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 15:11:30,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:11:37,498 WARN L539 Checker$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 15:11:40,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:11:45,080 WARN L539 Checker$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 15:11:47,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:11:49,762 WARN L539 Checker$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 15:11:51,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:11:53,809 WARN L539 Checker$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 15:11:55,825 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 15:12:00,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:12:00,028 INFO L93 Difference]: Finished difference Result 326810 states and 466828 transitions. [2022-11-23 15:12:00,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:12:00,029 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 632 [2022-11-23 15:12:00,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:12:01,211 INFO L225 Difference]: With dead ends: 326810 [2022-11-23 15:12:01,211 INFO L226 Difference]: Without dead ends: 185733 [2022-11-23 15:12:01,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:12:01,608 INFO L413 NwaCegarLoop]: 5581 mSDtfsCounter, 3009 mSDsluCounter, 4275 mSDsCounter, 0 mSdLazyCounter, 3103 mSolverCounterSat, 18 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3019 SdHoareTripleChecker+Valid, 9856 SdHoareTripleChecker+Invalid, 3133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3103 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:12:01,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3019 Valid, 9856 Invalid, 3133 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 3103 Invalid, 12 Unknown, 0 Unchecked, 44.8s Time] [2022-11-23 15:12:01,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185733 states. [2022-11-23 15:12:10,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185733 to 185664. [2022-11-23 15:12:10,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185664 states, 119990 states have (on average 1.3154262855237937) internal successors, (157838), 121797 states have internal predecessors, (157838), 53011 states have call successors, (53011), 12662 states have call predecessors, (53011), 12662 states have return successors, (54004), 51771 states have call predecessors, (54004), 53011 states have call successors, (54004)