./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI --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 66b2f104726c03e3846e38f6b09c6a45d6c8d058156e96895db9342600740310 --- 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-5e519f3 [2022-11-03 03:46:00,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:46:00,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:46:00,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:46:00,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:46:00,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:46:00,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:46:00,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:46:00,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:46:00,751 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:46:00,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:46:00,753 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:46:00,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:46:00,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:46:00,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:46:00,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:46:00,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:46:00,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:46:00,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:46:00,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:46:00,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:46:00,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:46:00,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:46:00,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:46:00,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:46:00,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:46:00,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:46:00,787 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:46:00,788 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:46:00,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:46:00,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:46:00,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:46:00,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:46:00,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:46:00,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:46:00,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:46:00,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:46:00,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:46:00,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:46:00,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:46:00,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:46:00,801 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:46:00,845 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:46:00,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:46:00,845 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:46:00,846 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:46:00,846 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:46:00,847 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:46:00,847 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:46:00,847 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:46:00,847 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:46:00,847 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:46:00,848 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:46:00,848 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:46:00,848 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:46:00,848 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:46:00,848 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:46:00,849 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:46:00,849 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:46:00,849 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:46:00,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:46:00,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:46:00,850 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:46:00,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:46:00,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:46:00,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:46:00,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:46:00,851 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:46:00,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:46:00,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:46:00,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:46:00,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:46:00,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:46:00,853 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:46:00,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:46:00,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:46:00,853 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:46:00,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:46:00,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:46:00,854 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:46:00,854 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_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66b2f104726c03e3846e38f6b09c6a45d6c8d058156e96895db9342600740310 [2022-11-03 03:46:01,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:46:01,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:46:01,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:46:01,181 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:46:01,181 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:46:01,183 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i [2022-11-03 03:46:01,274 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/data/3c931b332/95e2735993c7453f892b5821762a33b6/FLAG2849e3efb [2022-11-03 03:46:02,217 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:46:02,217 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i [2022-11-03 03:46:02,259 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/data/3c931b332/95e2735993c7453f892b5821762a33b6/FLAG2849e3efb [2022-11-03 03:46:02,679 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/data/3c931b332/95e2735993c7453f892b5821762a33b6 [2022-11-03 03:46:02,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:46:02,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:46:02,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:46:02,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:46:02,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:46:02,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:46:02" (1/1) ... [2022-11-03 03:46:02,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bab4f2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:02, skipping insertion in model container [2022-11-03 03:46:02,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:46:02" (1/1) ... [2022-11-03 03:46:02,702 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:46:02,836 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:46:05,108 WARN L230 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_8563ba60-823d-4af2-a7c5-698bfe5b219c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i[287455,287468] [2022-11-03 03:46:05,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:46:05,213 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:46:05,859 WARN L230 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_8563ba60-823d-4af2-a7c5-698bfe5b219c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i[287455,287468] [2022-11-03 03:46:05,867 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:46:05,970 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:46:05,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:05 WrapperNode [2022-11-03 03:46:05,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:46:05,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:46:05,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:46:05,972 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:46:05,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:05" (1/1) ... [2022-11-03 03:46:06,055 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:05" (1/1) ... [2022-11-03 03:46:06,207 INFO L138 Inliner]: procedures = 274, calls = 2121, calls flagged for inlining = 123, calls inlined = 120, statements flattened = 4342 [2022-11-03 03:46:06,207 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:46:06,208 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:46:06,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:46:06,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:46:06,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:05" (1/1) ... [2022-11-03 03:46:06,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:05" (1/1) ... [2022-11-03 03:46:06,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:05" (1/1) ... [2022-11-03 03:46:06,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:05" (1/1) ... [2022-11-03 03:46:06,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:05" (1/1) ... [2022-11-03 03:46:06,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:05" (1/1) ... [2022-11-03 03:46:06,516 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:05" (1/1) ... [2022-11-03 03:46:06,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:05" (1/1) ... [2022-11-03 03:46:06,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:46:06,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:46:06,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:46:06,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:46:06,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:05" (1/1) ... [2022-11-03 03:46:06,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:46:06,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:46:06,598 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:46:06,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:46:06,646 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2022-11-03 03:46:06,646 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2022-11-03 03:46:06,646 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_open [2022-11-03 03:46:06,646 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_open [2022-11-03 03:46:06,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 03:46:06,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 03:46:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-03 03:46:06,647 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-03 03:46:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 03:46:06,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 03:46:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 03:46:06,647 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 03:46:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dec_reset [2022-11-03 03:46:06,647 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dec_reset [2022-11-03 03:46:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_get_link_status [2022-11-03 03:46:06,648 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_get_link_status [2022-11-03 03:46:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 03:46:06,648 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 03:46:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-03 03:46:06,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-03 03:46:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 03:46:06,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 03:46:06,649 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_circuit_type [2022-11-03 03:46:06,649 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_circuit_type [2022-11-03 03:46:06,649 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkinput [2022-11-03 03:46:06,649 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkinput [2022-11-03 03:46:06,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 03:46:06,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 03:46:06,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 03:46:06,649 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 03:46:06,650 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 03:46:06,650 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 03:46:06,650 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_100ft [2022-11-03 03:46:06,650 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_100ft [2022-11-03 03:46:06,650 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 03:46:06,650 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 03:46:06,651 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-03 03:46:06,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-03 03:46:06,651 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_scram [2022-11-03 03:46:06,651 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_scram [2022-11-03 03:46:06,651 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2022-11-03 03:46:06,651 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2022-11-03 03:46:06,651 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_close [2022-11-03 03:46:06,652 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_close [2022-11-03 03:46:06,652 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkoutput [2022-11-03 03:46:06,652 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkoutput [2022-11-03 03:46:06,652 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2022-11-03 03:46:06,652 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2022-11-03 03:46:06,653 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 03:46:06,654 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 03:46:06,654 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_get_stats [2022-11-03 03:46:06,654 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_get_stats [2022-11-03 03:46:06,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:46:06,654 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_sc [2022-11-03 03:46:06,654 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_sc [2022-11-03 03:46:06,654 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2022-11-03 03:46:06,655 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2022-11-03 03:46:06,655 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_netif [2022-11-03 03:46:06,655 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_netif [2022-11-03 03:46:06,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:46:06,656 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-03 03:46:06,656 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-03 03:46:06,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-03 03:46:06,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-03 03:46:06,656 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 03:46:06,656 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 03:46:06,728 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_trace [2022-11-03 03:46:06,729 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_trace [2022-11-03 03:46:06,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:46:06,729 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110 [2022-11-03 03:46:06,729 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110 [2022-11-03 03:46:06,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:46:06,729 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-03 03:46:06,730 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-03 03:46:06,730 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-11-03 03:46:06,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-11-03 03:46:06,730 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 03:46:06,730 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 03:46:06,730 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_type [2022-11-03 03:46:06,730 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_type [2022-11-03 03:46:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 03:46:06,731 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 03:46:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_remove_one [2022-11-03 03:46:06,731 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_remove_one [2022-11-03 03:46:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-03 03:46:06,731 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-03 03:46:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_write [2022-11-03 03:46:06,732 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_write [2022-11-03 03:46:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_close [2022-11-03 03:46:06,732 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_close [2022-11-03 03:46:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 03:46:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 03:46:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_off [2022-11-03 03:46:06,732 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_off [2022-11-03 03:46:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:46:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 03:46:06,733 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 03:46:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2022-11-03 03:46:06,733 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2022-11-03 03:46:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 03:46:06,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 03:46:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 03:46:06,734 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 03:46:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_softreset [2022-11-03 03:46:06,734 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_softreset [2022-11-03 03:46:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110_bit [2022-11-03 03:46:06,734 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110_bit [2022-11-03 03:46:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:46:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 03:46:06,735 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 03:46:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-03 03:46:06,735 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-03 03:46:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-03 03:46:06,735 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-03 03:46:06,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 03:46:06,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 03:46:06,736 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_writereg [2022-11-03 03:46:06,736 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_writereg [2022-11-03 03:46:06,736 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ioctl [2022-11-03 03:46:06,736 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ioctl [2022-11-03 03:46:06,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-03 03:46:06,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-03 03:46:06,737 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_attach [2022-11-03 03:46:06,737 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_attach [2022-11-03 03:46:06,737 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-11-03 03:46:06,737 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-11-03 03:46:06,737 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2022-11-03 03:46:06,738 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2022-11-03 03:46:06,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:46:06,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-03 03:46:06,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-03 03:46:06,738 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-03 03:46:06,738 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-03 03:46:06,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:46:06,740 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 03:46:06,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 03:46:06,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:46:06,741 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_readreg [2022-11-03 03:46:06,741 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_readreg [2022-11-03 03:46:06,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-03 03:46:06,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-03 03:46:06,741 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2022-11-03 03:46:06,741 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2022-11-03 03:46:06,742 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 03:46:06,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 03:46:06,742 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:46:06,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:46:06,743 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_open [2022-11-03 03:46:06,743 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_open [2022-11-03 03:46:06,743 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-03 03:46:06,743 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-03 03:46:06,743 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_on [2022-11-03 03:46:06,743 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_on [2022-11-03 03:46:06,744 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-03 03:46:06,744 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-03 03:46:06,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:46:06,744 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_set_protocol [2022-11-03 03:46:06,744 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_set_protocol [2022-11-03 03:46:06,744 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-03 03:46:06,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-03 03:46:06,745 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-11-03 03:46:06,745 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-11-03 03:46:06,745 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-03 03:46:06,745 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-03 03:46:06,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:46:06,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:46:06,745 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2022-11-03 03:46:06,746 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2022-11-03 03:46:07,602 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:46:07,606 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:46:08,754 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 03:46:12,762 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:46:14,087 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:46:14,087 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 03:46:14,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:46:14 BoogieIcfgContainer [2022-11-03 03:46:14,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:46:14,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:46:14,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:46:14,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:46:14,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:46:02" (1/3) ... [2022-11-03 03:46:14,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666b5e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:46:14, skipping insertion in model container [2022-11-03 03:46:14,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:05" (2/3) ... [2022-11-03 03:46:14,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666b5e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:46:14, skipping insertion in model container [2022-11-03 03:46:14,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:46:14" (3/3) ... [2022-11-03 03:46:14,100 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i [2022-11-03 03:46:14,120 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:46:14,120 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:46:14,285 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:46:14,291 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;@4fb0a5ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:46:14,291 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:46:14,300 INFO L276 IsEmpty]: Start isEmpty. Operand has 1446 states, 806 states have (on average 1.3064516129032258) internal successors, (1053), 854 states have internal predecessors, (1053), 563 states have call successors, (563), 76 states have call predecessors, (563), 75 states have return successors, (557), 542 states have call predecessors, (557), 557 states have call successors, (557) [2022-11-03 03:46:14,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-03 03:46:14,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:46:14,315 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 03:46:14,315 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:46:14,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:46:14,321 INFO L85 PathProgramCache]: Analyzing trace with hash -711981477, now seen corresponding path program 1 times [2022-11-03 03:46:14,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:46:14,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451977525] [2022-11-03 03:46:14,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:14,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:46:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:14,982 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-03 03:46:14,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:46:14,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451977525] [2022-11-03 03:46:14,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451977525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:46:14,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:46:14,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:46:14,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922445379] [2022-11-03 03:46:14,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:46:14,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:46:14,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:46:15,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:46:15,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:46:15,033 INFO L87 Difference]: Start difference. First operand has 1446 states, 806 states have (on average 1.3064516129032258) internal successors, (1053), 854 states have internal predecessors, (1053), 563 states have call successors, (563), 76 states have call predecessors, (563), 75 states have return successors, (557), 542 states have call predecessors, (557), 557 states have call successors, (557) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-03 03:46:18,700 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 [] [2022-11-03 03:46:21,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:46:21,650 INFO L93 Difference]: Finished difference Result 4253 states and 6466 transitions. [2022-11-03 03:46:21,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:46:21,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 72 [2022-11-03 03:46:21,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:46:21,723 INFO L225 Difference]: With dead ends: 4253 [2022-11-03 03:46:21,723 INFO L226 Difference]: Without dead ends: 2805 [2022-11-03 03:46:21,750 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 [2022-11-03 03:46:21,754 INFO L413 NwaCegarLoop]: 2662 mSDtfsCounter, 2076 mSDsluCounter, 2140 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2076 SdHoareTripleChecker+Valid, 4608 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:46:21,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2076 Valid, 4608 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 424 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-11-03 03:46:21,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2805 states. [2022-11-03 03:46:22,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2805 to 2802. [2022-11-03 03:46:22,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2802 states, 1567 states have (on average 1.2967453733248244) internal successors, (2032), 1645 states have internal predecessors, (2032), 1087 states have call successors, (1087), 148 states have call predecessors, (1087), 147 states have return successors, (1086), 1056 states have call predecessors, (1086), 1086 states have call successors, (1086) [2022-11-03 03:46:22,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2802 states to 2802 states and 4205 transitions. [2022-11-03 03:46:22,202 INFO L78 Accepts]: Start accepts. Automaton has 2802 states and 4205 transitions. Word has length 72 [2022-11-03 03:46:22,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:46:22,203 INFO L495 AbstractCegarLoop]: Abstraction has 2802 states and 4205 transitions. [2022-11-03 03:46:22,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-03 03:46:22,204 INFO L276 IsEmpty]: Start isEmpty. Operand 2802 states and 4205 transitions. [2022-11-03 03:46:22,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-03 03:46:22,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:46:22,222 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-03 03:46:22,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:46:22,226 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:46:22,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:46:22,227 INFO L85 PathProgramCache]: Analyzing trace with hash 468587706, now seen corresponding path program 1 times [2022-11-03 03:46:22,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:46:22,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336307578] [2022-11-03 03:46:22,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:22,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:46:22,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:22,619 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-11-03 03:46:22,619 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:46:22,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336307578] [2022-11-03 03:46:22,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336307578] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:46:22,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:46:22,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:46:22,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869762769] [2022-11-03 03:46:22,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:46:22,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:46:22,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:46:22,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:46:22,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:46:22,623 INFO L87 Difference]: Start difference. First operand 2802 states and 4205 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 03:46:25,161 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 [] [2022-11-03 03:46:27,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:46:27,844 INFO L93 Difference]: Finished difference Result 5126 states and 7742 transitions. [2022-11-03 03:46:27,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:46:27,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 93 [2022-11-03 03:46:27,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:46:27,955 INFO L225 Difference]: With dead ends: 5126 [2022-11-03 03:46:27,955 INFO L226 Difference]: Without dead ends: 5123 [2022-11-03 03:46:27,962 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 [2022-11-03 03:46:27,963 INFO L413 NwaCegarLoop]: 3137 mSDtfsCounter, 1838 mSDsluCounter, 2079 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1838 SdHoareTripleChecker+Valid, 5029 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:46:27,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1838 Valid, 5029 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-11-03 03:46:27,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5123 states. [2022-11-03 03:46:28,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5123 to 5066. [2022-11-03 03:46:28,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5066 states, 2863 states have (on average 1.3094655955291652) internal successors, (3749), 3019 states have internal predecessors, (3749), 1926 states have call successors, (1926), 281 states have call predecessors, (1926), 276 states have return successors, (1966), 1847 states have call predecessors, (1966), 1925 states have call successors, (1966) [2022-11-03 03:46:28,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5066 states to 5066 states and 7641 transitions. [2022-11-03 03:46:28,398 INFO L78 Accepts]: Start accepts. Automaton has 5066 states and 7641 transitions. Word has length 93 [2022-11-03 03:46:28,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:46:28,401 INFO L495 AbstractCegarLoop]: Abstraction has 5066 states and 7641 transitions. [2022-11-03 03:46:28,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 03:46:28,401 INFO L276 IsEmpty]: Start isEmpty. Operand 5066 states and 7641 transitions. [2022-11-03 03:46:28,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-03 03:46:28,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:46:28,424 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 03:46:28,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:46:28,424 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:46:28,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:46:28,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1581290409, now seen corresponding path program 1 times [2022-11-03 03:46:28,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:46:28,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597572109] [2022-11-03 03:46:28,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:28,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:46:28,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:29,158 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-03 03:46:29,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:46:29,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597572109] [2022-11-03 03:46:29,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597572109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:46:29,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:46:29,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:46:29,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911099537] [2022-11-03 03:46:29,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:46:29,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:46:29,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:46:29,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:46:29,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:46:29,168 INFO L87 Difference]: Start difference. First operand 5066 states and 7641 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 03:46:32,455 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 [] [2022-11-03 03:46:35,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:46:35,574 INFO L93 Difference]: Finished difference Result 14602 states and 22035 transitions. [2022-11-03 03:46:35,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:46:35,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 139 [2022-11-03 03:46:35,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:46:35,677 INFO L225 Difference]: With dead ends: 14602 [2022-11-03 03:46:35,677 INFO L226 Difference]: Without dead ends: 9562 [2022-11-03 03:46:35,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:46:35,744 INFO L413 NwaCegarLoop]: 2627 mSDtfsCounter, 2072 mSDsluCounter, 7795 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2076 SdHoareTripleChecker+Valid, 9813 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:46:35,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2076 Valid, 9813 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 845 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-11-03 03:46:35,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9562 states. [2022-11-03 03:46:36,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9562 to 9534. [2022-11-03 03:46:36,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9534 states, 5342 states have (on average 1.3010108573567951) internal successors, (6950), 5643 states have internal predecessors, (6950), 3669 states have call successors, (3669), 527 states have call predecessors, (3669), 522 states have return successors, (3765), 3525 states have call predecessors, (3765), 3668 states have call successors, (3765) [2022-11-03 03:46:36,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9534 states to 9534 states and 14384 transitions. [2022-11-03 03:46:36,554 INFO L78 Accepts]: Start accepts. Automaton has 9534 states and 14384 transitions. Word has length 139 [2022-11-03 03:46:36,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:46:36,554 INFO L495 AbstractCegarLoop]: Abstraction has 9534 states and 14384 transitions. [2022-11-03 03:46:36,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 03:46:36,556 INFO L276 IsEmpty]: Start isEmpty. Operand 9534 states and 14384 transitions. [2022-11-03 03:46:36,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-03 03:46:36,572 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:46:36,572 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 03:46:36,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:46:36,573 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:46:36,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:46:36,574 INFO L85 PathProgramCache]: Analyzing trace with hash -638307249, now seen corresponding path program 1 times [2022-11-03 03:46:36,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:46:36,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859570818] [2022-11-03 03:46:36,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:36,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:46:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:37,004 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-03 03:46:37,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:46:37,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859570818] [2022-11-03 03:46:37,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859570818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:46:37,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:46:37,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:46:37,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032002026] [2022-11-03 03:46:37,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:46:37,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:46:37,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:46:37,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:46:37,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:46:37,011 INFO L87 Difference]: Start difference. First operand 9534 states and 14384 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 03:46:39,705 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 [] [2022-11-03 03:46:43,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:46:43,093 INFO L93 Difference]: Finished difference Result 19072 states and 28776 transitions. [2022-11-03 03:46:43,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:46:43,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 140 [2022-11-03 03:46:43,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:46:43,181 INFO L225 Difference]: With dead ends: 19072 [2022-11-03 03:46:43,181 INFO L226 Difference]: Without dead ends: 9564 [2022-11-03 03:46:43,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:46:43,259 INFO L413 NwaCegarLoop]: 2627 mSDtfsCounter, 2070 mSDsluCounter, 7795 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2074 SdHoareTripleChecker+Valid, 9813 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:46:43,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2074 Valid, 9813 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 845 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-03 03:46:43,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9564 states. [2022-11-03 03:46:43,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9564 to 9544. [2022-11-03 03:46:43,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9544 states, 5350 states have (on average 1.3005607476635515) internal successors, (6958), 5651 states have internal predecessors, (6958), 3669 states have call successors, (3669), 529 states have call predecessors, (3669), 524 states have return successors, (3765), 3525 states have call predecessors, (3765), 3668 states have call successors, (3765) [2022-11-03 03:46:44,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9544 states to 9544 states and 14392 transitions. [2022-11-03 03:46:44,046 INFO L78 Accepts]: Start accepts. Automaton has 9544 states and 14392 transitions. Word has length 140 [2022-11-03 03:46:44,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:46:44,048 INFO L495 AbstractCegarLoop]: Abstraction has 9544 states and 14392 transitions. [2022-11-03 03:46:44,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 03:46:44,049 INFO L276 IsEmpty]: Start isEmpty. Operand 9544 states and 14392 transitions. [2022-11-03 03:46:44,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-03 03:46:44,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:46:44,066 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 03:46:44,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:46:44,067 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:46:44,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:46:44,074 INFO L85 PathProgramCache]: Analyzing trace with hash 97298540, now seen corresponding path program 1 times [2022-11-03 03:46:44,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:46:44,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142115406] [2022-11-03 03:46:44,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:44,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:46:44,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:44,498 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-03 03:46:44,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:46:44,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142115406] [2022-11-03 03:46:44,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142115406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:46:44,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:46:44,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:46:44,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68530742] [2022-11-03 03:46:44,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:46:44,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:46:44,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:46:44,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:46:44,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:46:44,501 INFO L87 Difference]: Start difference. First operand 9544 states and 14392 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 03:46:47,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:46:51,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:46:51,710 INFO L93 Difference]: Finished difference Result 23570 states and 35537 transitions. [2022-11-03 03:46:51,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:46:51,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 138 [2022-11-03 03:46:51,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:46:51,825 INFO L225 Difference]: With dead ends: 23570 [2022-11-03 03:46:51,826 INFO L226 Difference]: Without dead ends: 14052 [2022-11-03 03:46:51,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:46:51,903 INFO L413 NwaCegarLoop]: 2636 mSDtfsCounter, 2074 mSDsluCounter, 7821 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2078 SdHoareTripleChecker+Valid, 9842 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:46:51,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2078 Valid, 9842 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-11-03 03:46:51,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14052 states. [2022-11-03 03:46:52,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14052 to 13994. [2022-11-03 03:46:52,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13994 states, 7817 states have (on average 1.2980683126519126) internal successors, (10147), 8265 states have internal predecessors, (10147), 5408 states have call successors, (5408), 775 states have call predecessors, (5408), 768 states have return successors, (5552), 5195 states have call predecessors, (5552), 5407 states have call successors, (5552) [2022-11-03 03:46:53,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13994 states to 13994 states and 21107 transitions. [2022-11-03 03:46:53,020 INFO L78 Accepts]: Start accepts. Automaton has 13994 states and 21107 transitions. Word has length 138 [2022-11-03 03:46:53,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:46:53,021 INFO L495 AbstractCegarLoop]: Abstraction has 13994 states and 21107 transitions. [2022-11-03 03:46:53,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 03:46:53,021 INFO L276 IsEmpty]: Start isEmpty. Operand 13994 states and 21107 transitions. [2022-11-03 03:46:53,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-03 03:46:53,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:46:53,048 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 03:46:53,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:46:53,048 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:46:53,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:46:53,049 INFO L85 PathProgramCache]: Analyzing trace with hash -30967334, now seen corresponding path program 1 times [2022-11-03 03:46:53,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:46:53,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371972334] [2022-11-03 03:46:53,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:53,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:46:53,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:53,420 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-03 03:46:53,421 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:46:53,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371972334] [2022-11-03 03:46:53,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371972334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:46:53,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:46:53,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:46:53,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396363449] [2022-11-03 03:46:53,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:46:53,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:46:53,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:46:53,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:46:53,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:46:53,428 INFO L87 Difference]: Start difference. First operand 13994 states and 21107 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 03:46:55,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:46:57,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:01,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:47:01,815 INFO L93 Difference]: Finished difference Result 25880 states and 38929 transitions. [2022-11-03 03:47:01,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:47:01,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 141 [2022-11-03 03:47:01,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:47:01,943 INFO L225 Difference]: With dead ends: 25880 [2022-11-03 03:47:01,943 INFO L226 Difference]: Without dead ends: 13546 [2022-11-03 03:47:02,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:47:02,050 INFO L413 NwaCegarLoop]: 2627 mSDtfsCounter, 2068 mSDsluCounter, 7795 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2072 SdHoareTripleChecker+Valid, 9813 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:47:02,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2072 Valid, 9813 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 845 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-11-03 03:47:02,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13546 states. [2022-11-03 03:47:03,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13546 to 13514. [2022-11-03 03:47:03,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13514 states, 7513 states have (on average 1.294689205377346) internal successors, (9727), 7943 states have internal predecessors, (9727), 5252 states have call successors, (5252), 753 states have call predecessors, (5252), 748 states have return successors, (5392), 5045 states have call predecessors, (5392), 5251 states have call successors, (5392) [2022-11-03 03:47:03,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13514 states to 13514 states and 20371 transitions. [2022-11-03 03:47:03,140 INFO L78 Accepts]: Start accepts. Automaton has 13514 states and 20371 transitions. Word has length 141 [2022-11-03 03:47:03,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:47:03,141 INFO L495 AbstractCegarLoop]: Abstraction has 13514 states and 20371 transitions. [2022-11-03 03:47:03,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 03:47:03,141 INFO L276 IsEmpty]: Start isEmpty. Operand 13514 states and 20371 transitions. [2022-11-03 03:47:03,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-03 03:47:03,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:47:03,170 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:47:03,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 03:47:03,170 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:47:03,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:47:03,171 INFO L85 PathProgramCache]: Analyzing trace with hash -302950474, now seen corresponding path program 1 times [2022-11-03 03:47:03,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:47:03,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091635955] [2022-11-03 03:47:03,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:47:03,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:47:03,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:47:03,763 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-11-03 03:47:03,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:47:03,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091635955] [2022-11-03 03:47:03,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091635955] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:47:03,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241088570] [2022-11-03 03:47:03,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:47:03,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:47:03,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:47:03,770 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:47:03,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:47:04,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:47:04,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 2332 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 03:47:04,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:47:05,064 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-03 03:47:05,064 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:47:05,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241088570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:47:05,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 03:47:05,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2022-11-03 03:47:05,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657947964] [2022-11-03 03:47:05,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:47:05,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:47:05,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:47:05,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:47:05,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-03 03:47:05,067 INFO L87 Difference]: Start difference. First operand 13514 states and 20371 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 03:47:08,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:10,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:12,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:15,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:21,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:47:21,908 INFO L93 Difference]: Finished difference Result 32054 states and 48349 transitions. [2022-11-03 03:47:21,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 03:47:21,911 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 151 [2022-11-03 03:47:21,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:47:22,102 INFO L225 Difference]: With dead ends: 32054 [2022-11-03 03:47:22,103 INFO L226 Difference]: Without dead ends: 22526 [2022-11-03 03:47:22,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2022-11-03 03:47:22,185 INFO L413 NwaCegarLoop]: 2636 mSDtfsCounter, 2136 mSDsluCounter, 13584 mSDsCounter, 0 mSdLazyCounter, 1392 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2140 SdHoareTripleChecker+Valid, 15121 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1392 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:47:22,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2140 Valid, 15121 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1392 Invalid, 3 Unknown, 0 Unchecked, 15.7s Time] [2022-11-03 03:47:22,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22526 states. [2022-11-03 03:47:23,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22526 to 22439. [2022-11-03 03:47:23,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22439 states, 12492 states have (on average 1.2969100224143453) internal successors, (16201), 13227 states have internal predecessors, (16201), 8702 states have call successors, (8702), 1247 states have call predecessors, (8702), 1244 states have return successors, (8975), 8340 states have call predecessors, (8975), 8701 states have call successors, (8975) [2022-11-03 03:47:24,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22439 states to 22439 states and 33878 transitions. [2022-11-03 03:47:24,144 INFO L78 Accepts]: Start accepts. Automaton has 22439 states and 33878 transitions. Word has length 151 [2022-11-03 03:47:24,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:47:24,146 INFO L495 AbstractCegarLoop]: Abstraction has 22439 states and 33878 transitions. [2022-11-03 03:47:24,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 03:47:24,146 INFO L276 IsEmpty]: Start isEmpty. Operand 22439 states and 33878 transitions. [2022-11-03 03:47:24,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-03 03:47:24,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:47:24,204 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:47:24,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:47:24,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:47:24,419 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:47:24,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:47:24,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1524298384, now seen corresponding path program 1 times [2022-11-03 03:47:24,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:47:24,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646382810] [2022-11-03 03:47:24,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:47:24,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:47:24,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:47:25,223 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-03 03:47:25,223 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:47:25,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646382810] [2022-11-03 03:47:25,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646382810] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:47:25,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100620701] [2022-11-03 03:47:25,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:47:25,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:47:25,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:47:25,227 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:47:25,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 03:47:26,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:47:26,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 2334 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 03:47:26,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:47:26,316 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-03 03:47:26,317 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:47:26,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100620701] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:47:26,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 03:47:26,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2022-11-03 03:47:26,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99207009] [2022-11-03 03:47:26,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:47:26,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:47:26,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:47:26,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:47:26,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-11-03 03:47:26,320 INFO L87 Difference]: Start difference. First operand 22439 states and 33878 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 03:47:29,768 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 [] [2022-11-03 03:47:36,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:47:36,788 INFO L93 Difference]: Finished difference Result 49905 states and 75345 transitions. [2022-11-03 03:47:36,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 03:47:36,790 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 152 [2022-11-03 03:47:36,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:47:37,089 INFO L225 Difference]: With dead ends: 49905 [2022-11-03 03:47:37,089 INFO L226 Difference]: Without dead ends: 31452 [2022-11-03 03:47:37,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2022-11-03 03:47:37,267 INFO L413 NwaCegarLoop]: 2776 mSDtfsCounter, 2100 mSDsluCounter, 14171 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2104 SdHoareTripleChecker+Valid, 15809 SdHoareTripleChecker+Invalid, 1449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:47:37,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2104 Valid, 15809 Invalid, 1449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1446 Invalid, 1 Unknown, 0 Unchecked, 9.0s Time] [2022-11-03 03:47:37,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31452 states. [2022-11-03 03:47:38,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31452 to 31347. [2022-11-03 03:47:38,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31347 states, 17463 states have (on average 1.2979442249327149) internal successors, (22666), 18513 states have internal predecessors, (22666), 12137 states have call successors, (12137), 1741 states have call predecessors, (12137), 1746 states have return successors, (12550), 11616 states have call predecessors, (12550), 12136 states have call successors, (12550) [2022-11-03 03:47:39,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31347 states to 31347 states and 47353 transitions. [2022-11-03 03:47:39,483 INFO L78 Accepts]: Start accepts. Automaton has 31347 states and 47353 transitions. Word has length 152 [2022-11-03 03:47:39,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:47:39,484 INFO L495 AbstractCegarLoop]: Abstraction has 31347 states and 47353 transitions. [2022-11-03 03:47:39,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 03:47:39,484 INFO L276 IsEmpty]: Start isEmpty. Operand 31347 states and 47353 transitions. [2022-11-03 03:47:39,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-03 03:47:39,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:47:39,547 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:47:39,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:47:39,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:47:39,775 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:47:39,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:47:39,775 INFO L85 PathProgramCache]: Analyzing trace with hash 717257789, now seen corresponding path program 1 times [2022-11-03 03:47:39,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:47:39,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658393304] [2022-11-03 03:47:39,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:47:39,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:47:39,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:47:40,339 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-03 03:47:40,339 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:47:40,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658393304] [2022-11-03 03:47:40,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658393304] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:47:40,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149713584] [2022-11-03 03:47:40,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:47:40,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:47:40,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:47:40,343 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:47:40,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 03:47:41,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:47:41,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 2336 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 03:47:41,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:47:41,579 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-03 03:47:41,579 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:47:41,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149713584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:47:41,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 03:47:41,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2022-11-03 03:47:41,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259239296] [2022-11-03 03:47:41,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:47:41,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:47:41,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:47:41,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:47:41,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-11-03 03:47:41,582 INFO L87 Difference]: Start difference. First operand 31347 states and 47353 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 03:47:45,215 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 [] [2022-11-03 03:47:52,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:47:52,158 INFO L93 Difference]: Finished difference Result 67719 states and 102289 transitions. [2022-11-03 03:47:52,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 03:47:52,159 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 153 [2022-11-03 03:47:52,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:47:52,491 INFO L225 Difference]: With dead ends: 67719 [2022-11-03 03:47:52,491 INFO L226 Difference]: Without dead ends: 40358 [2022-11-03 03:47:52,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2022-11-03 03:47:52,709 INFO L413 NwaCegarLoop]: 2783 mSDtfsCounter, 2100 mSDsluCounter, 14207 mSDsCounter, 0 mSdLazyCounter, 1456 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2104 SdHoareTripleChecker+Valid, 15844 SdHoareTripleChecker+Invalid, 1459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1456 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:47:52,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2104 Valid, 15844 Invalid, 1459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1456 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2022-11-03 03:47:52,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40358 states. [2022-11-03 03:47:54,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40358 to 31351. [2022-11-03 03:47:54,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31351 states, 17467 states have (on average 1.297875994732925) internal successors, (22670), 18513 states have internal predecessors, (22670), 12137 states have call successors, (12137), 1741 states have call predecessors, (12137), 1746 states have return successors, (12550), 11620 states have call predecessors, (12550), 12136 states have call successors, (12550) [2022-11-03 03:47:54,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31351 states to 31351 states and 47357 transitions. [2022-11-03 03:47:54,785 INFO L78 Accepts]: Start accepts. Automaton has 31351 states and 47357 transitions. Word has length 153 [2022-11-03 03:47:54,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:47:54,786 INFO L495 AbstractCegarLoop]: Abstraction has 31351 states and 47357 transitions. [2022-11-03 03:47:54,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 03:47:54,786 INFO L276 IsEmpty]: Start isEmpty. Operand 31351 states and 47357 transitions. [2022-11-03 03:47:54,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-03 03:47:54,834 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:47:54,835 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:47:54,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 03:47:55,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:47:55,063 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:47:55,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:47:55,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1360309161, now seen corresponding path program 1 times [2022-11-03 03:47:55,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:47:55,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627276558] [2022-11-03 03:47:55,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:47:55,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:47:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:47:55,806 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-03 03:47:55,806 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:47:55,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627276558] [2022-11-03 03:47:55,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627276558] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:47:55,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903691233] [2022-11-03 03:47:55,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:47:55,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:47:55,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:47:55,818 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:47:55,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 03:47:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:47:56,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 2338 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 03:47:56,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:47:56,881 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-03 03:47:56,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:47:56,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903691233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:47:56,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 03:47:56,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2022-11-03 03:47:56,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905680397] [2022-11-03 03:47:56,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:47:56,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:47:56,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:47:56,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:47:56,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-11-03 03:47:56,884 INFO L87 Difference]: Start difference. First operand 31351 states and 47357 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 03:48:00,728 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 [] [2022-11-03 03:48:09,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:48:09,559 INFO L93 Difference]: Finished difference Result 67731 states and 102301 transitions. [2022-11-03 03:48:09,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 03:48:09,560 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 154 [2022-11-03 03:48:09,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:48:09,824 INFO L225 Difference]: With dead ends: 67731 [2022-11-03 03:48:09,824 INFO L226 Difference]: Without dead ends: 40366 [2022-11-03 03:48:09,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2022-11-03 03:48:09,990 INFO L413 NwaCegarLoop]: 2776 mSDtfsCounter, 2100 mSDsluCounter, 14171 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2104 SdHoareTripleChecker+Valid, 15809 SdHoareTripleChecker+Invalid, 1449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:48:09,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2104 Valid, 15809 Invalid, 1449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1446 Invalid, 1 Unknown, 0 Unchecked, 10.6s Time] [2022-11-03 03:48:10,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40366 states. [2022-11-03 03:48:11,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40366 to 31355. [2022-11-03 03:48:11,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31355 states, 17471 states have (on average 1.2978077957758571) internal successors, (22674), 18513 states have internal predecessors, (22674), 12137 states have call successors, (12137), 1741 states have call predecessors, (12137), 1746 states have return successors, (12550), 11624 states have call predecessors, (12550), 12136 states have call successors, (12550) [2022-11-03 03:48:12,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31355 states to 31355 states and 47361 transitions. [2022-11-03 03:48:12,174 INFO L78 Accepts]: Start accepts. Automaton has 31355 states and 47361 transitions. Word has length 154 [2022-11-03 03:48:12,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:48:12,174 INFO L495 AbstractCegarLoop]: Abstraction has 31355 states and 47361 transitions. [2022-11-03 03:48:12,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 03:48:12,175 INFO L276 IsEmpty]: Start isEmpty. Operand 31355 states and 47361 transitions. [2022-11-03 03:48:12,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-03 03:48:12,226 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:12,226 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:48:12,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 03:48:12,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-03 03:48:12,447 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:12,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:12,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1487012158, now seen corresponding path program 1 times [2022-11-03 03:48:12,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:48:12,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373620005] [2022-11-03 03:48:12,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:12,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:48:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:13,192 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-11-03 03:48:13,192 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:48:13,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373620005] [2022-11-03 03:48:13,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373620005] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:48:13,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980527982] [2022-11-03 03:48:13,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:13,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:48:13,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:48:13,195 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:48:13,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8563ba60-823d-4af2-a7c5-698bfe5b219c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 03:48:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:14,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 2409 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:48:14,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:48:14,353 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-11-03 03:48:14,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:48:14,838 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-11-03 03:48:14,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980527982] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:48:14,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1965791562] [2022-11-03 03:48:14,866 INFO L159 IcfgInterpreter]: Started Sifa with 106 locations of interest [2022-11-03 03:48:14,867 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:48:14,885 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:48:14,891 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:48:14,891 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:48:17,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:48:17,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:48:17,715 INFO L244 Elim1Store]: Index analysis took 561 ms [2022-11-03 03:48:53,097 WARN L234 SmtUtils]: Spent 35.26s on a formula simplification. DAG size of input: 1666 DAG size of output: 963 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-03 03:48:53,104 INFO L356 Elim1Store]: treesize reduction 3209, result has 33.8 percent of original size [2022-11-03 03:48:53,107 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 139 select indices, 139 select index equivalence classes, 9595 disjoint index pairs (out of 9591 index pairs), introduced 139 new quantified variables, introduced 139 case distinctions, treesize of input 705 treesize of output 2068 [2022-11-03 03:48:54,984 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2022-11-03 03:48:55,143 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2022-11-03 03:48:55,271 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2022-11-03 03:48:55,435 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2022-11-03 03:48:56,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:48:56,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:48:58,223 INFO L244 Elim1Store]: Index analysis took 2399 ms [2022-11-03 03:49:55,636 WARN L234 SmtUtils]: Spent 57.37s on a formula simplification. DAG size of input: 2223 DAG size of output: 1111 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-03 03:49:55,640 INFO L356 Elim1Store]: treesize reduction 5266, result has 25.5 percent of original size [2022-11-03 03:49:55,641 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 142 select indices, 142 select index equivalence classes, 9734 disjoint index pairs (out of 10011 index pairs), introduced 142 new quantified variables, introduced 417 case distinctions, treesize of input 724 treesize of output 2245 [2022-11-03 03:49:58,127 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2022-11-03 03:49:58,501 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2022-11-03 03:49:58,781 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2022-11-03 03:50:07,182 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 03:50:07,187 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 03:50:07,194 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-03 03:50:10,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:10,925 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 42 select indices, 42 select index equivalence classes, 252 disjoint index pairs (out of 861 index pairs), introduced 42 new quantified variables, introduced 0 case distinctions, treesize of input 349 treesize of output 127 [2022-11-03 03:50:11,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:11,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:11,558 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 141 select indices, 141 select index equivalence classes, 9872 disjoint index pairs (out of 9870 index pairs), introduced 141 new quantified variables, introduced 0 case distinctions, treesize of input 706 treesize of output 424 [2022-11-03 03:50:12,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:12,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:12,708 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 142 select indices, 142 select index equivalence classes, 10011 disjoint index pairs (out of 10011 index pairs), introduced 142 new quantified variables, introduced 0 case distinctions, treesize of input 711 treesize of output 427 [2022-11-03 03:50:22,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:22,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:22,870 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 141 select indices, 141 select index equivalence classes, 9872 disjoint index pairs (out of 9870 index pairs), introduced 141 new quantified variables, introduced 0 case distinctions, treesize of input 706 treesize of output 424 [2022-11-03 03:50:23,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:23,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:23,757 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 142 select indices, 142 select index equivalence classes, 10011 disjoint index pairs (out of 10011 index pairs), introduced 142 new quantified variables, introduced 0 case distinctions, treesize of input 711 treesize of output 427 [2022-11-03 03:50:24,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:50:24,400 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 42 select indices, 42 select index equivalence classes, 252 disjoint index pairs (out of 861 index pairs), introduced 42 new quantified variables, introduced 0 case distinctions, treesize of input 349 treesize of output 127 [2022-11-03 03:51:21,379 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:51:21,483 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:51:21,743 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:51:23,431 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:51:23,435 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:51:23,471 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:52:07,330 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:52:07,649 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:52:08,341 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:52:09,238 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:52:09,261 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:52:09,316 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:53:17,022 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:53:17,448 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:53:17,533 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:53:18,886 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:53:18,917 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:53:18,919 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:53:49,780 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:53:50,730 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:53:50,956 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:53:51,899 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:53:51,977 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:53:51,993 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:57:38,612 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_memset with input of size 1664 for LOIs [2022-11-03 03:58:27,168 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_init_zalloc with input of size 234 for LOIs [2022-11-03 03:58:27,345 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 03:58:27,369 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 03:58:30,064 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.meminit with input of size 253 for LOIs [2022-11-03 03:58:30,139 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 257 for LOIs [2022-11-03 03:58:30,366 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 1664 for LOIs [2022-11-03 03:58:45,906 INFO L180 IcfgInterpreter]: Interpretation finished